Across the world, there have been significant declines in butterfly and moth populations. Since 1976, 76% of UK butterfly species have seen a decrease in abundance or distribution, with the abundance of larger moths declining by 33% since 1968. This trend is echoed across UK biodiversity, with 41% of all UK species declining since the 1970s. Butterflies and moths are clear indicators of the broader health of the environment; their decline is a stark warning about our natural world.
Marbled White by C. Mitson
The UK has 59 butterfly species, 57 of which are resident. There are around 2,500 species of moths in the UK, split into two groups: larger macro-moths and smaller micro-moths. Almost 70 species of butterfly and moth have become extinct in the last 100 years. A variety of threats have contributed to these extinctions and the general decline of other species, including the destruction of habitats and major land-use changes, such as the intensification of agriculture. Climate change, chemical pollution and artificial light at night have also all be identified as threats to UK populations.
Butterflies and moths have an intrinsic value in their own right, but they are also an important component in many ecosystems. They provide environmental services, including pollination and pest control and are prey for many other species, such as birds, bats and other insectivores. Butterflies and moths are also important ‘model’ organisms, used for centuries to investigate different areas of biological research and are key to understanding many diverse fields, such as pest control, mimicry, genetics and population dynamics.
The Big Butterfly Count 2021
Peacock Butterfly by Oliver Haines
Butterfly Conservation, a UK nonprofit environmental charity, is determined to reverse this decline. Their vision is a world where butterflies and moths thrive and can be enjoyed by everyone, everywhere. To help with the assessment of the health of our environment, Butterfly Conservation runs an annual nationwide citizen science survey, the Big Butterfly Count. Launched in 2010, it is the world’s biggest survey of butterflies.
Big Butterfly Count 2021 ran between 16th July and 8th August (read our blog to see how our NHBS staff got on this year). The results of this count showed that the overall number of butterflies recorded per count is at its lowest since the event began. Over 150,000 counts were registered this year, more than ever before, but the results showed that the populations of some of our most-loved species, such as the peacock butterfly (Aglais io), are suffering. Luckily, it’s not all bad news, as some species, such as the marbled white (Melanargia galathea), appear to be bouncing back from last year’s low numbers. But the significant, long-term decline of many butterfly and moth species in Britain is alarming.
Butterfly Conservation’s new strategy
In their new 2021-2026 strategy, launched in October 2021, Butterfly Conservation outlines a bold, ambitious road map to bringing abundance back to nature. After 16 months of reviewing their position in butterfly and moth conservation, they have defined three new strategic goals:
Reduce the number of threatened species of butterflies and moths by half,
Improve the condition of 100 of the most important landscapes for butterflies and moths,
Transform 100,000 wild spaces in the UK, not just for butterflies and moths, but also for people.
To help them deliver their strategic goals, Butterfly Conservation have five initiatives. The first initiative is focused on recovery, through refocusing their science program to increase the understanding of why species are declining and how to recover their populations. They will also establish a new Threatened Species program, which will target conservation action for 65 species at serious risk. Butterfly Conservation will also expand their monitoring program to follow species recovery and gather data on a country-wide level. By 2026, they hope to have increased their species recovery actions by 65%.
The second initiative aims to inspire and enable more people to enjoy the natural world by improving access to learning, particularly for younger audiences. The third initiative is focused on uniting for wildlife, and the fourth is to tackle the threats species face, such as artificial light at night. They’ll achieve these goals by collaborating with a network of supporters and increasing their investment in research by 80% to establish five habitat quality indicators to better understand the impact of conservation work or policy changes. The final initiative focuses on managing land sustainably, by creating a land management advisory hub and delivering and demonstrating best practice land management for butterflies and months across landscapes.
Hummingbird Hawk-moth by Ian Watson-Loyd
Butterfly Conservation believes that the next five years are key and, through their bold new steps to conserve butterflies and moths, they can help to restore biodiversity, mitigate the climate crisis and start to rebuild the relationship between us and the natural world.
The next habitat we will be exploring in our Introduction to Habitats series is urban and suburban habitats. These are extremely diverse, from parks, gardens, cemeteries and bare ground to highrises, bridges, landfills and houses. Due to this wide diversity, urban habitats are often extremely fragmented, with small, isolated patches surrounded by unsuitable areas. These patches are also often highly disturbed, by light, people, pets, cars and other anthropogenic activities. Some species also have to deal with reduced availability of food, due to the limited plant life, and fewer nesting and breeding spaces. Much of the surfaces in the urban environment have been altered, covered in concrete, roofing tiles, and tarmac. This changes the amount of rainwater that can infiltrate the soils underneath, as well as how much heat from the sun is absorbed. The temperatures can be higher in urban areas, particularly when there is little to no tree coverage to provide shade.
To survive in an urban environment, species must be adaptable. Many studies have found key behavioural and physical differences between urban and rural dwellers of the same species. For example, birds have been found to sing higher, longer and louder in cities than in the countryside. Generalist species are more likely to be able to exploit these habitats as they can occupy wider ecological niches. Specialist species can have more restricted diets or need more specific conditions to develop or reproduce, making them less able to adapt to changing environments. Those able to transition from natural to man-made habitats, however, may actually see large fitness benefits, due to fewer predators and, for some species, abundant food supplies.
Gardens and public green spaces can often be a refuge for many urban species, providing food, shelter and protection from other disturbances. But overly manicured gardens and parks do not provide the resources necessary for many species to survive. Wildflowers, hedges, shrubs, trees and other native vegetation are needed to boost insect numbers, along with limiting the use of harmful herbicides and pesticides. Many other species rely on insects for food, and so increasing insect populations benefits other species throughout the food web.
This species is a member of the carrot family and is commonly found on verges, hedgerows and less intensively-managed green spaces, with a preference for shaded habitats. It is a fast-growing plant, that appears in the summer before dying back, and its white flowers are clustered together in an umbrella-like shape. They are a great food resource for many invertebrate species, as well as for rabbits. There are several similar-looking plants, including the poisonous hemlock (Conium maculatum), although hemlock has distinctive purple blotches on its stem.
This is an invasive species, often found along verges, roadside banks, hedgerows and on waste ground. It can form dense colonies and are spread naturally by ants. Its white flowers have a green stripe on each petal and a garlic/oniony smell. They are edible, tasting similarly to spring onion or chives.
This plant has multiple common names, including chickenwort, maruns, craches and winterweed. They form large mats and are found in many gardens and fields. It has one line of fine hairs on its stem, with oval leaves and small white flowers. Chickweed was used in folk medicine as a remedy for pulmonary disease and several itchy skin conditions. It is even prescribed today by modern herbalists for many other conditions, although not all these uses are supported by scientific evidence.
This is a climbing plant that can often be found on walls, buildings, trees and other man-made and natural structures. It is an evergreen species that can also grow as groundcover when there are no vertical surfaces. The flowers are a greenish-yellow colour and the fruits, which ripen in late winter, can vary in colour from purple-black to orangy-yellow. They are an important food source for many insects and birds, particularly in autumn and winter, and their foliage is also browsed by deer.
There are several species of pigeon in our urban areas. Feral pigeons, also known as city or street pigeons, are descended from the domestic pigeon, a subspecies derived from the rock dove (Columba livia). They have substituted their natural habitats of sea cliffs with ledges on buildings and other man-made structures. They have a wide variety of colours and patterns compared to the rock dove, but urban pigeons tend to have a darker plumage compared to individuals in rural areas.
An iconic urban species, the red fox is one of our largest land predators. Usually living in groups or pairs, they feed mainly on small mammals and birds, but also amphibians and fruit. In urban areas, they are very successful scavengers, helped occasionally by people who leave food out for them. They are more common in less dense suburban areas but have been found right in city centres. It is thought that the movement between urban and rural fox populations is quite fluid.
Another iconic British species, the hedgehog has seen severe population declines, though true population estimates are difficult, due to the lack of data and their elusive nature. In the 1950s, population estimates put the number of hedgehogs in the UK at 36.5 million (although this is not thought to be accurate), which is now thought to have dropped to 1.55 million by 1995. It is believed that populations are still declining, but there are still no reliable methods for estimating the true numbers. They face several threats, including habitat loss, chemical use in gardens, cars and a drop in invertebrate populations.
This bird of prey is not only the fastest bird in the world, but also the fastest member of the animal kingdom, clocking up a dive speed of over 320km/h. Their populations suffered after decades of persecution and pesticide use, but their numbers have begun to recover. They nest in tall buildings, bridges and pylons, and prey mainly on pigeons but also collared doves, blackbirds and starlings.
A wide variety of invertebrates can be found in urban and suburban habitats, particularly gardens and parks. The garden snail is a common visitor to our lawns, plants and vegetable patches. They’re often considered a pest due to the damage they cause to leaves and fruits but they play a vital role in the health of our soils. They help decompose plant matter, allowing for the cycling of nutrients back into the soil. Snails are also an important food and calcium source for many animals, such as birds.
Urban and suburban environments are also home to many garden bird species, as well as bats, butterflies, moths and spiders. For more information on these, check out some of our guides to UK species identification.
Threats
Urban and suburban areas are becoming more and more densely inhabited as more of the UK’s population moved into towns and cities. This increases the levels of disturbance, from more cars on the road, more noise, light, waste, pets and people. Higher disturbances decrease the ability of species to survive, as they are less likely to feed, develop and reproduce successfully. It can also increase the likelihood of direct mortality.
With a rising human population is an increasing need for more housing and infrastructure. Consequently, this reduces the amount of undeveloped and semi-natural areas; fewer green spaces and the over maintenance of gardens and parks are serious threats to biodiversity in urban habitats.
Public opinion can also threaten urban wildlife. Many species that have managed to colonise the urban environment are considered pests and there are often calls to eradicate them. Fox culls are a controversial suggestion, with many people wanting a way to control the populations and reduce the damage they cause, while others are concerned with animal rights. Additionally, there are suggestions that culls are ineffective, as removed foxes are often replaced by another individual, with no change made to urban population numbers.
What can you do to help?
There are several simple steps you can take to help improve urban biodiversity. You could plant more native plants, reduce the chemicals you use and decrease how often you mow your lawn. Placing bird feeders, nests, and other shelters are also ways that can help wildlife. On a bigger scale, you can urge your local council and government to help too. They could increase the areas of green space and tree cover, and manage roadside verges with nature in mind. Another important step is to decrease light and noise pollution. With some simple steps, we can help to increase the suitability of urban habitats for many wildlife species.
In our new NHBS Introduction to Habitats series, we will be exploring the various habitats found in the UK. In this article, we will take a look at the first habitat of the series, heathland and moorland. Featuring prominently in famous novels such as Wuthering Heights by Emily Brontë and The Return of the Native by Thomas Hardy, heathland is a unique habitat. Originally manmade, it is a product of agricultural grazing and tree clearing practices originating thousands of years ago. Unlike the heathland in countries such as Australia and South Africa, European heathland is relatively low in flora species variety. It is characterised by heather species (Family Ericaceae), but also other plant species such as gorse (Ulex spp.) and bracken (Pteridium spp.).
As this habitat is manmade, it requires management to be maintained. This usually involves a variety of methods such as using grazing animals, removing older species and trees, and controlling the encroachment of scrub. They can even be managed by controlled burning. If neglected, the heathland would be overtaken by successive species and become woodland.
There are several different types of heathland, depending on physical factors such as soil drainage, terrain, and altitude. These types include lowland, chalk, and wooded heath. Lowland heath can be further divided into wet, dry, and humid heath, and upland heath is more commonly known as moorland. The types of species found can vary between these habitats.
What species can you find here?
Flora:
While there may not be a large variety of flora, the species present all play important roles within the habitat. There are also some iconic species within the heathland.
Between June and September, bell heather blooms across the heathland, creating a blanket of purple. This species is an important nectar source for many invertebrate species, such as the buff-tailed bumblebee (Bombus terrestris) and the silver-studded blue butterfly (Plebejus argus).
It is similar to another heather species, cross-leaved heath, but the flowers of the bell heather are smaller and occur around the stem, rather than clustered on one side.
Flowering from January to June, this bright yellow plant provides an early source of food for many invertebrates. As a large evergreen shrub, it also provides shelter for many species, including Dartford warblers (Curruca undata) and linnets (Linaria cannabina).
Common gorse is also very similar to two other gorse species, western (Ulex gallii) and dwarf (Ulex minor). The easiest way to identify the species is by the time of year that they flower and their height, as common gorse grows much taller and can reach up to 2.5 metres.
The UK’s most common fern species, it grows in dense groups on heathland and moorland. A bright green during spring and summer months, this species dies back in winter, creating a sea of brown fronds. Bracken is poisonous to grazing livestock, therefore it needs to be cut back to maintain heathland habitats. If left to grow, it can dominate the habitat and out-compete other plant species, such as bell heather, for nutrients, light, and water.
Heath Bedstraw (Galium saxatile)
Heath bedstraw – by H. Ketley
Heath bedstraw is a mat-forming herb found in heathland habitats. It is a fairly common species, found widespread across most of the UK. The white petalled flowers bloom between June and August. This species is a key food source for Britain’s only true alpine butterfly species: the small mountain ringlet (Erebia epiphron).
Key identifying features of heath bedstraw are its square, hairless stem and its white, four-petal flowers that give off a sickly, unpleasant smell.
Fauna:
Heathland supports a large variety of species, particularly invertebrates, but also birds, mammals and reptiles. Several rare species present here are hardly found in any other habitat.
Silver-Studded Blue Butterfly (Plebejus argus)
Silver-studded blue butterfly by gailhampshire via Flickr
This species is found mainly in heathland, chalk grassland, and sand dune habitats, and is almost entirely restricted to southern England. It is a rare species, with the adults appearing between July to September.
This species is sexually dimorphic, meaning the males and females look different. The males (pictured) are blue with a darker border, while the females are brown with red spots along their border. Both have the pale fringe to their wings.
Golden-Ringed Dragonfly (Cordulegaster boltonii)
Golden-ringed dragonfly by Paul Albertella via Flickr
This species, found in heathland, freshwater, and wetland habitats, is easy to identify, due to its distinctive yellow and black markings. Their larvae are aquatic, and so rely on streams or standing water within the heathland to breed. While voracious predators in their own right, they are also an important food source, along with other dragonfly species, for many nesting birds such as the hobby (Falco subbuteo).
The Dartford warbler suffered a population crash in the 1960s but has since begun recovering. It is a ground-nesting bird, living on lowland heath and relies on gorse for a protective covering. Within the UK, this species is also mostly restricted to southern England. However, there are populations of this species within western Europe, particularly within the Iberian peninsula.
The stoat, also known as the short-tailed weasel or Eurasian ermine, is a small member of the mustelid family, related to otters (Lutra lutra) and the very visually similar weasel (Mustela nivalis). While stoats are slightly larger, the key to discerning this species from the weasel is the tail – stoats have a longer tail with a black tip.
Lack of management is one of the main threats that heathland faces. This habitat needs variety, for example, dry heath, wetter areas such as bogs and ponds, patches of older vegetation, and areas of bare, sandy ground. This all improves the biodiversity of the area and helps to strengthen the ecosystem. Without management, these areas could all be taken over by scrub and tree cover.
Clearing for urban development, ploughing, and quarrying also threaten this habitat, and are some of the main causes of heathland loss over the last few decades. Further threats include the expansion and planting of forests, overgrazing, and uncontrolled fire.
More than 80% of heathland in the UK has been lost during the past 150 years, but widespread conservation efforts hope to reverse this. The UK Biodiversity Action Plan, for example, aims to restore 58,000 hectares of heathland, with further plans to recreate 6,000 hectares.
Areas of significance:
Upland heathland or moorland:
– Exmoor, Dartmoor, and Bodmin Moor
– Pennines
– Brecon Beacons
– Other areas such as Yorkshire, Northumberland, Greater Manchester, and the Peak District.
Lowland heathland
– The New Forest
– Ashdown Forest
– South Purbeck Heaths
– Other areas such as Cornwall, Devon, Surrey, and Pembrokeshire
Many books in the Collins New Naturalist Library are underpinned by ecology, but the latest addition to the series is the first to be devoted to the science in its own right. In Ecology and Natural History, David Wilkinson provides an insightful and highly accessible account of the core ecological concepts and brings them to life with examples of classic research sites and studies from across Britain.
Image by Tim Bernhard
David Wilkinson is Visiting Professor in Ecology in the School of Life Sciences at the University of Lincoln and Honorary Research Fellow in Archaeology at the University of Nottingham. He has wide interests in ecology, and in recent years has written articles for British Wildlife on such varied subjects as scent-based mimicry in wild plants and animals, lichens as composite organisms, and autumnal colour change in leaves. Here, David has kindly answered some of our questions about his new book.
Ecology is a complex discipline, encompassing all the amazingly diverse ways in which living organisms interact with one another and with their environment. What drew you to ecology as a topic for your book, and how did you set about tackling such a wide-ranging subject?
As you say ‘Ecology is a complex discipline, encompassing all the amazingly diverse way living organisms interact with one another and their environment’ – with a topic as grand as this why would you write a book on anything else! Both of my previous books (for Oxford University Press) had been on aspects of ecology, but written for a more technical audience. Having walked away from my academic day job I now felt I had the time to try and write something more accessible, but still scientifically accurate. Most of the most pressing global problems are related to ecology, so there is an obvious need for as many people as possible to have some idea of basic ecological concepts. The approach grew out of over a quarter of a century’s experience of introducing the basic ideas of ecology to undergraduates.
Chapters are split by topic but also by location, each one beginning with a scene from the site of a classic ecological study. What inspired this approach?
It seemed the obvious approach, as although this is a book on ideas I wanted to embed them in what you see in the field. The first chapter I wrote was chapter 2 which made a lot of use of Cwm Idwal in Snowdonia. Jonathan Silvertown (plant ecologist and science writer) was the member of the New Naturalist editorial board who oversaw my book. He liked the site based approach and encouraged me to use it throughout the book (his own popular book on plant diversity ‘Demons in Eden’ had used a similar approach). In many ways the approach grew out of my tendency to ‘tell stories’ when talking about ecology to beginning undergraduates. So in part the book is my lecturing style turned to prose.
Were you familiar with your chosen locations before embarking on writing, or did you make trips as part of your research for the book?
Most of the locations I used to open chapters were sites I was familiar with, but the two exceptions were Downe Bank and the Isle of Cumbrae – writing the book provided a great excuse to visit both of these. Most of the sites were visited on one or more occasion during the three years I worked on the book – the exceptions were Selborne (which I had visited a couple of years before I started writing) and Rothamsted, where the description is based on a visit in 2005. A highlight of the writing was a week’s fieldwork in the Cairngorms, taking photos for the book.
Smaller life forms such as bacteria and protists feature prominently in various chapters. How important are these organisms in helping us to understand the structure and function of ecosystems?
A key theme of the book is the importance of such organisms. Considered from a genetic or biochemical perspective most of the diversity of life on Earth is microbial. Considered from a geological perspective for most of the history of life on Earth all ecology was microbial ecology, as microbes were the only life forms around. In ecological systems today they are still crucial. Many people vaguely realise that they have some importance in decomposition and nutrient cycling, but also much of photosynthesis (and related oxygen production) is by microbes rather than larger plants. Historically microbes have been hard to study in the wild, being by definition too small to see without microscopy. However, molecular methods (using DNA or RNA) are making things much more tractable, and now microbial ecology looks poised to be one of the big growth areas in ecological research.
You were able to draw on a number of examples of high-profile and long-running experiments from British sites. How influential have studies in Britain been for ecology as a science?
Ecology has a long history but really starts to take off as a science in the early 20th century. It started to develop earlier in Britain than in most countries, indeed the British Ecological Society (founded in 1913) was the first such society anywhere in the world. Because of this several of the key early studies that helped develop the basic ideas of ecology took place in Britain.
A number of the experiments described were initiated in the early/mid-20th century. Has there been a decrease in the creation of new long-term studies in recent decades and, if so, what are the implications for conservation and ecology?
Because of the relatively early start of academic ecology in Britain the country has a number of very long running ecology field experiments. For example two I write about in the book are The Park Grass experiment at Rothamsted (started 1856) and the Godwin Plots at Wicken Fen (started 1927). Neither was started with the idea that they would run for 100 years or more – there is a large element of chance in their long-term survival. However, once an experiment has been running for a long time then people start to realise that such long runs of data are important and try and find the resources to continue them. More recent examples include (amongst many) the Buxton Climate Change Impacts Lab (which commenced in 1993 on limestone grassland in the Peak District) and grazing experiments set up in the Ainsdale Dunes system in Merseyside (started in 1974). But to be really long term requires luck and/or a succession of people determined enough to keep them going against the odds.
Finally, could you tell us about your plans for the future? Do you have any more writing projects lined up?
I have quite a list of books that would be interesting to write. The one I am most keen to do next is envisaged as a series of linked essays on ecology, evolution and the environment, as I would like to do an accessible general book that uses examples from around the world (rather than having the British focus of a New Naturalist). While I have an outline of the idea it’s in very early stages and I haven’t yet found a publisher for it. More long term another book that requires the extensive fieldwork that went in to the New Naturalist would provide a good excuse to not get trapped at a computer. I also have several ongoing ecological research projects.
Ecology and Natural History
By: David M. Wilkinson
Hardback | Published June 2021 | £52.99 £64.99 Paperback | Published June 2021 | £27.99 £34.99
All prices correct at the time of this article’s publication.
In the new Summer 2021 issue of Conservation Land Management magazine (CLM) Dan Brown, ecologist and founder of Wild Discovery, provides an overview of thermal imaging technology and how it can be applied in wildlife surveys. Here you can read a summary of the article.
Thermal imaging was originally developed for military purposes but has since been deployed in a variety of fields, including increasingly so in conservation and ecology. It works by using medium- and long-wave infrared radiation to create a heat image called a thermogram – the varying temperatures can be displayed either as different colours, shades or as a monochromatic image. In light of its growing popularity in ecology, this article discusses how this technology can be used in wildlife surveys and what needs to be considered when doing so.
Field applications
One important benefit of using thermal imaging is that species that are usually difficult to survey, particularly cryptic or nocturnal species, can be readily detected. Ptarmigan, for example, can be tricky to spot in scree and boulder fields, and so the use of thermal imaging can be an efficient way to monitor an elusive species such as this with greater accuracy. Also, as this is a non-invasive surveying technique, the behaviour of wildlife can be observed with little disturbance.
Thermal-imaging technology has already been trialled in surveys of a number of different species. In the Forest of Dean, for example, the Forestry Commission uses thermal imaging to monitor wild boar, and the Mid Wales Squirrel Partnership uses it to monitor active red squirrel dreys. This technology can also complement acoustic monitoring for bat surveys – the species of bat can be determined using a bat detector, while thermal imaging can help to identify potential roost sites and enables the surveyor to count the number of individuals present.
Another advantage of thermal-imaging technology is that it works both during the day and at night. Studies of woodcock and nightjar have put this to good use – researchers have been able to locate day-roosting birds and also monitor their nocturnal activity, such as foraging behaviours and flight patterns, with minimal disturbance to the birds.
Night time image of a woodcock (5x magnification) by Simone Webber
Potential for other uses in the field
But what else can thermal imaging be used for in species monitoring? Elsewhere in the world, thermal-imaging systems have been fitted to farm machinery to help detect ground-nesting bird species, a method that could be applied in the UK to monitor curlew, lapwing and stone-curlew. Similarly, attaching thermal-imaging equipment to drones could provide an opportunity to survey inaccessible species and areas.
And it doesn’t have to be just warm-blooded animals either. There is huge variation in heat signatures across the landscape, even between different tree species, and so using thermal imaging could aid searches for potential locations for roosting owls, for example, or help to identify possible basking spots for invertebrates and reptiles. There is also potential for this technology to be used to search for insects that display a distinct heat signature in low ambient temperatures, such as queen wasps and bumblebees or larger moths.
Night time image of standing deer (5x magnification) by Simone Webber
Considerations and limitations
When planning and designing surveys and fieldwork, there are a number of factors that need to be considered when using thermal imaging. For instance, its effectiveness can differ depending on the season or weather – the heat signatures of birds and mammals can be masked on sunny days, whereas these signatures are more detectable during overcast days when the ambient temperature is lower. In order to use this equipment effectively, adequate practice and training is required and although there are some training courses available, there is not a huge amount of published guidance on using thermal imaging for wildlife surveys. And even before choosing a thermal imaging scope, it is important to consider its intended use, its detection distance (as this varies between different models), and cost.
In the full article Dan Brown describes how thermal technology works, provides more detail on how thermal imaging can be applied to wildlife surveys and the benefits of doing so, and describes the resources and training that are currently available for ecologists using thermal imaging. Other articles that featured in the Summer 2021 issue include:
River restoration in the Avon catchment of the Cairngorms National Park
The Pirbright Red Deer Project – Surrey’s last ‘wilderness’?
Bats in churches: a complex conservation challenge
Insecticide-free agriculture – a sustainable approach for nature and farming
In this and every issue you can expect to see Briefing, keeping you up to date on the latest training courses, events and publications, and On the ground which provides helpful tips or updates on products relevant to land management.
CLM is published four times a year in March, June, September and December, and is available by subscription only, delivered straight to your door. Subscriptions start from £22 per year. Previous back issues are also available to purchase individually (subject to availability).
If you are involved in a conservation project and think your experiences could be useful to other practitioners, we would love to hear from you. If you are interested in writing for CLM feel free to contact us – we will be happy to discuss your ideas with you.
Although humans were undoubtedly more attuned to seasonal cycles in the pre-industrial era, the changing seasons and associated renewal and decay still exercise a powerful influence over us. Anyone who has ever smiled upon hearing the first swifts of the year screaming across the sky, or felt their spirits lift at the appearance of the first wild daffodils, is observing phenological events.
Phenology is the study of seasonal natural phenomena such as the budburst of trees, arrival and departure of summer migrants, first egg layings, emergence of hibernating animals and appearance of plankton blooms. Phenological records have greatly enhanced our understanding of ecological interactions, and have proven invaluable in demonstrating the effects of climate change on terrestrial and marine ecosystems. Our fascination with the rhythm of seasonal cycles persists even in our modernised world and many phenological records have been, and continue to be, provided by the public.
Although strictly speaking the word ‘phenology’ refers to the study of seasonal events, its use has broadened to refer to the seasonal events themselves, i.e. when an event occurs during the year. Seasonal events such as budburst have been consistently recorded in the UK by generations of dedicated relatives of Robert Marsham (from 1736 until 1958), by English naturalists Gilbert White and William Markwick (from 1768 until 1793), by a network of 600 ‘Phenological Reports’ observers across the UK (from 1891 until 1948) and from 1949 by Jean Combes in Surrey.
Modern techniques to monitor phenology include vegetation indices and remote sensing from satellites and aerial surveys, rather than individual observations. These data have provided an essential record of key seasonal markers that have clearly shown a shift in the phenology of many species due to warming temperatures. The latest research indicates that oak budburst is now more than 11 days earlier than in the 19th Century. This has massive implications for the species that rely on oak trees and their associated invertebrate communities for food and shelter. Much of the research demonstrates that species such as Great Tits and Pied Flycatchers do not have the flexibility in their seasonal timing of egg laying and migrating to match the shift in tree and invertebrate emergence.
In many ecosystems a seasonal abundance of a resource can drive natural selection, influencing which individuals of a species struggle or thrive. Individuals that can time their seasonal cycle to coincide with an abundance of food are usually more successful in terms of breeding or survival. For example, there is a very well researched phenological interaction between Great Tit nestling feeding and caterpillar abundance. The birds judge when to begin their breeding attempt so that the peak energetic demands of their chicks (around 12 days after hatching) matches a very brief peak in caterpillar numbers. The females that can do this more accurately and be more flexible to variation in timing between years (phenotypic plasticity), are more likely to have offspring that survive to breed themselves. There is an interaction between the caterpillars and the oak leaves they feed on too; the caterpillars need to emerge when the oak leaves are small, before the tannins in the leaves build up enough to stop them being eaten.
There are also less competitive and more mutually beneficial phenological interactions, such as between migrating hummingbirds and the flower species that rely on them for pollination, and between emerging insect pollinators and spring flowers. The intricacy and importance of phenological interactions between species has raised great concerns about the ability of entire ecosystems to adapt to warming temperatures. A phenological mismatch can occur when the timing between the interacting species or individuals does not change to the same degree.
Phenological Recording and Observing – How to Get Involved
The recording of phenological events has always relied on consistent, repeated observations by amateur naturalists and members of the public. By collating annual records of key phenological markers, extensive databases of seasonal records have been built up. Initiatives such as ‘Nature’s Calendar’ run by The Woodland Trust, gather data from thousands of volunteers and contribute long-term data to research projects. You can choose which species and events you record and know that you are contributing to an important project because these data are invaluable to researchers for tracking the effects of climate change on our seasonal ecology.
Nature’s Calendar also has a downloadable Phenological Calendar so that you can see where your records fit into national averages. This also gives you a fantastic insight into which seasonal events to look out for each year.
Recommended Reading
Climate Change and British Wildlife
Trevor Beebee
#240243
In this contribution to the British Wildlife Collection, Trevor Beebee examines the story so far for our species and their ecosystems, and considers how they may respond in the future.
Phenology: An Integrative Environmental Science
Ed. by Mark D. Schwartz
#231399
This in-depth book looks at progress in the field of phenology over the last decade and its future potential as an integrative environmental science.
The Natural History of Selborne
Gilbert White
#219069
Through his long-held diaries and nature journals, Gilbert White has provided us with an account of how changes in global climate can affect local weather patterns.
Merlin Sheldrake is a biologist and a writer with a background in plant sciences, microbiology and ecology. He received a Ph.D. in tropical ecology from Cambridge University for his work on underground fungal networks in tropical forests in Panama.
Merlin’s just published book, Entangled Life explores the incredible world of fungi and how it has shaped and continues to influence the world we live in
Merlin Sheldrake and truffle
Merlin kindly agreed to answer our questions about his book and these incredible organisms.
Could you tell us a little about your background?
As an undergraduate I studied plant and microbial sciences. I then moved over into the humanities for my masters degree in the history and philosophy of science, where I focused on the history of Amazonian ethnobotany – the study of the relationships between humans and plants. I then shifted back into the sciences for my PhD, conducting research into the ecology of mycorrhizal fungi in tropical forests in Panama. There’s a strange disciplinary barrier between the sciences and the humanities which I’ve long found frustrating – and artificial – and for much of my education I’ve tried to find the places where it is less well-maintained and has become more porous.
Where did the motivation for this book come from?
Mycorrhizal fungi form symbiotic relationships with plants and can link plants together in shared networks sometimes known as the ‘wood wide web’. These fungi allowed the ancestors of plants to move out of freshwater and onto land, some 500 million years ago, and without them the planet would be unrecognisable. At school I had been taught to think of plants as autonomous individuals, but they turned out to be the product of a complex tangle of relationships: mycorrhizal fungi are a more ancient part of planthood than wood, leaves, flowers, or even roots. What we call plants are really algae that have evolved to farm fungi, and fungi that have evolved to farm algae – and this ancient relationship lies at the base of the food chains that sustain nearly all life on land. The more I studied these organisms and their intimate relationships, the more I realised that thinking about fungi makes the world look different. Entangled Life arose from this enquiry, and my sense of vertigo at the realisation that we’re only just beginning to understand this mind-bending kingdom of life.
Fungi appear to make decisions but has no ‘mind’ in the way we would understand. How can you best explain how ‘mycelial minds’ make sense of their environment?
Mushrooms are only the fruiting bodies of fungi: for the most part fungi live their lives as branching, fusing networks of tubular cells known as mycelium. Mycelial co-ordination is difficult to understand because there is no centre of control. If we cut off our head or stop our heart, we’re finished. A mycelial network has no head and no brain. Fungi, like plants, are decentralised organisms. Control is dispersed: mycelial co-ordination takes place both everywhere at once and nowhere in particular. These networks can sprawl over tens or even hundreds of metres and are subject to an unceasing flood of sensory information. And somehow, without a brain, fungi are able to integrate these many data streams, make decisions, and determine suitable courses of action. How they coordinate themselves remains a puzzle. There are a few options. Some researchers suggest that mycelial networks might transmit developmental cues using changes in pressure or flow – because mycelium is a continuous hydraulic network like a car’s braking system, a sudden change in pressure in one part could, in principle, be felt rapidly everywhere else. Some have observed that metabolic activity – such as the accumulation and release of compounds within hyphal compartments – can take place in regular pulses that could help to synchronise behaviour across a network. Others have found that the mycelium of some fungal species is electrically excitable and conducts spikes of electrical activity along hyphae, analogous to the electrical impulses in animal nerve cells, which could allow different parts of a network to stay in touch with themselves.
A common or shared mycorrhizal network seems to be a model for all ecology, yet outside of a few specialists is relatively under-researched and tends to be plant-centrist; why do you think is that is the case?
If you show someone a picture of a forest containing a jaguar and ask people to describe the image, most would describe the jaguar and say nothing about the bustle of plant life that makes up most of the scene. Our tendency to overlook plants in favour of animals has been termed ‘plant-blindness’. I think a similar phenomenon – fungus-blindness – sometimes plays out when we think about shared mycorrhizal networks. Plants are larger and easier for us to see and so our attention is naturally drawn to them. Plants are also more familiar units of life, which makes it easier for us to tell stories featuring them. Fungal networks are intuitively and conceptually slippery, and more difficult for us to make sense of.
Mycroremediation; the use of fungi to restore the biological health of soil has long been understood, but rarely used in large-scale applications. Do you think that will change in the future?
I hope so! Fungi are metabolic wizards with astonishing talents for breaking down stubborn substances, from lignin, wood’s toughest component, to rock, crude oil, polyurethane plastics and the explosive TNT. Despite its promise, however, mycoremediation is no simple fix. Just because a given fungal strain behaves in a certain way in a dish doesn’t mean it will do the same thing when introduced to the rumpus of a contaminated ecosystem. Fungi have needs – such as oxygen or additional food sources – that must be taken into account. Moreover, decomposition takes place in stages, achieved by a succession of fungi and bacteria, each able to pick up where the previous ones left off. It is naive to imagine that a lab-trained fungal strain will be able to hustle effectively in a new environment and remediate a site by itself. Some of the most promising applications of mycoremediation under development involve redirecting our waste streams so that material can be processed in fungal facilities before it hits the landfill. These approaches strike me as the most promising because they involve a larger scale re-evaluation of our dysfunctional philosophy of waste. By building systems in which fungi intercept pollutants before they spill into the environment we can start to deal with the causes of pollution rather than just the symptoms.
Some radical mycologists declare that ‘fungi can save the world!’ How credible do you think some of their claims are?
Fungi have been shaping the planet and its biospheres for over a billion years and will no doubt continue to do so. And there are certainly many ways that we might partner with fungi to help us to adapt to life on a damaged planet. As in any field that holds great promise there’s hype and some big claims floating around, some more credible than others. Then again, we don’t know nearly enough about fungi as we should. Their lives are endlessly surprising, and even many of their well-established behaviours and characteristics can seem incredible at first hearing.
Entangled Life has taken years of research and investigation. Allowing for a well-earned rest, have you any future projects you can tell us about?
I have plenty of studies to write up, and a number of research questions I’m exploring. I have yet to emerge from this tangled enquiry and don’t imagine that I will any time soon. Fungi have received a tiny fraction of the attention given to animals or plants and there are wide open questions whichever way one looks.
Entangled Life: How Fungi Make Our Worlds, Change Our Minds and Shape Our Futures
By: Merlin Sheldrake
Hardback | September 2020
An immersive trip into the largely unknown world of fungi, showing just how otherworldly and amazing this neglected group of organisms is.
The orchard has been a traditional component of the British landscape for many centuries. However, subsidies have led to the destruction of older traditional orchards to make way for more intensive farming and now only a fraction remain.
The value of these orchards for wildlife has long been underestimated. Ben Macdonald and Nick Gates spent years visiting a traditional orchard across all seasons observing its imperilled and overlooked abundance of life.
Ben and Nick have taken time to answer our questions about their book and this remarkably fertile habitat.
Could you tell us a little about your backgrounds?
Nick Gates
Nick Gates (NG): I grew up in West Sussex, and could usually be found building a dam across a stream or out catching grasshoppers and slow worms on the Ashdown Forest somewhere. I ended up reading Natural Sciences at Cambridge and, similar to Ben, have now found myself making wildlife documentaries. But I adore spending time in the field, and am forever looking for new areas to explore, new behaviours to interpret and new species to learn about.
Benedict McDonald
Benedict Macdonald (BM): I grew up north of Bristol, and my fascination with nature began with raising butterflies at school, which then took me onto my great passion for birds. I took a different route to Nick, studying English at Oxford to improve my journalistic skills before moving into the natural history film industry. The love of birds remains – and it was indeed the search for breeding lesser-spotted woodpeckers for the BTO’s Bird Atlas that, one magical morning, led me to the Orchard.
Where did the motivation for this book come from? Are Orchards a subject that you have been wanting to write about for some time?
NG: The project actually started as a photographic record, nest-box project and field diary. We certainly didn’t envisage when first visiting the orchard that one day we’d be able to convert our passion for it into a book. As the years went by, and we uncovered more of the orchard’s stories each season, we realised we had built up a library of magical stories about this special place – and the book idea was born.
You divided the book into chapters by each month; was this something you planned all along and why did month-by-month fit the narrative of the orchard so well?
BM: As any pair of naturalists will tell you, the skills you have are similar but often complimentary. In January, for example, much of the expertise lies in tracking small mammals around the orchard, and reading prints etched in the snow – one of Nick’s favourite past-times. May is all about birdsong and concealed nests, and spoke deeply to my own love of birds. But make no mistake – every month is special in the orchard. The players are always on the move.
NG: Having spent six years visiting the orchard across all seasons, it was clear that its stories were deeply rooted around the lifecycles of the apple and perry pear trees – which themselves have a very defined year. Once the book idea became a reality, it seemed the most natural way to introduce our audience to the orchard world. As Ben and I both often travel abroad on our respective filming trips, it also worked really well when dividing the chapter structure, as we each had unique experiences from certain months that we wanted to share.
The neighbouring orchard is run intensively and very differently to the orchard you studied; what would you say are the practical advantages of being less intensive?
NG: The major benefit appears to be maintenance. Spraying an orchard many times a season requires expensive inputs in machinery, as well as the manual labour required to continually prune each tree to a very defined shape to make the spraying as efficient as possible. In an unsprayed orchard, many different age classes of trees can thrive alongside each other. If an elderly tree is lost to a storm, it is easy to leave some of the deadwood and replace it nearby with a new young specimen. But the biggest benefit is that with an intact food chain, your costly pesticide inputs are replaced with spotted flycatchers and redstarts, which arrive for free each year and willingly hoover up all manner of insects that enjoy nibbling fruit trees!
BM: The summer migrants are critical to the success of the orchard – but the residents play an invaluable role. Throughout the winter, various species of tits, finches and woodpeckers, especially lesser-spotted, are all rooting out potentially harmful insects from the bark of the orchard’s trees. And as Nick puts it, treecreepers act as tree ‘dentists’, removing lots of tiny insects that could eventually end up reducing the lifespan of the trees.
The orchard you observed rewarded you with plenty of surprising stories and scenarios. Was there one single episode that stood out for you?
BM: For me, it was when we finally solved the mystery of the goshawk’s larder. Our generation has grown up with the idea that goshawks are limited to big woods and often those dark, silent plantations. The idea a goshawk could be hunting our orchard didn’t even occur to us at first, even after we found pheasant after pheasant neatly plucked. It was only when the pair decided to display right overhead one March that, like an Agatha Christie novel, it all came together.
NG: I have been out in the field looking for interesting stories in the natural world for as long as I can remember, so it is always rewarding coming across something unexpected. The best thing about the orchard, is that this just seems to happen so regularly! But if I had to single out one, I’d say my biggest surprise was the day I excitedly returned to photograph the coal tit family nesting in a pear tree, only to find the entrance to their nest firmly blocked with a rather unfortunate wood mouse. Having most likely scoffed the nest contents, it couldn’t fit back through the hole it had entered through. It was one of the most extraordinarily bizarre things I’ve yet chanced upon in the natural world.
Do you think a separation from the EU’s Common Agricultural Policy (CAP) can create any opportunities for wildlife and biodiversity?
NG: Yes. The CAP model has ample opportunity for reform, and I hope that this is reflected in whatever system is adopted post Brexit. A model that rewards land owners for improving the biodiversity on their land is long overdue, as is a system that recognises carbon capture. There are certainly massive opportunities for British biodiversity – it is now up to those in positions of decision making to ensure they chose the correct advisers to inform these new policies.
BM: The Common Agricultural Policy has paid for enormous destruction of the countryside, and even models such as orchards that should be profitable to farmers – not just wildlife. In my view, we actually need a specific orchard subsidy. It seems mad that we can continue to pay for sheep grazing to denude hillsides and accelerate the flow of water off the hills, yet we cannot pay our farmers to grow apples. But this subsidy has to happen soon: orchards are vanishing fast.
Installing a wildlife pond is often sited as being the best way to add biodiversity to a garden; for those lucky enough to have the space, would you recommend planting an orchard for a similar reason?
NG: Absolutely. With something like a pond, you tend to see the rewards within just a few months of installing it, as the first newts and dragonflies arrive to breed in the new water source. Whilst fruit trees can take a few years to start blossoming and become increasingly valuable for your local wildlife, they mature incredibly quickly relative to most other tree species. Apples and pears are usually producing blossom and a crop in five to seven years, and by 40 years of age are well on their way to becoming an ‘ancient orchard’. Also, fruit trees, particularly those grafted to dwarf rootstock, don’t actually need a lot of room – and considering it only takes half a dozen trees to be called an orchard – most public green spaces could host a small wildlife orchard that would be of great help to local biodiversity.
After a well-earned rest, are there any plans or works-in-progress that you can tell us about?
NG: Ben and I have a few ideas for co-authored projects in the future but our next respective titles will both be individually written. I am currently working on a book about an urban wildlife garden…watch this space!
BM: As I approach the end of writing my third book, Cornerstones – for Bloomsbury (published January 2022), I have to be honest that a writing break is in order. Both writing and publicity are fantastic to be involved in but they do take a lot of time. Perhaps I can put my feet up and read Nick’s wildlife gardening book!
Ben Macdonald and Nick Gates spent years visiting a traditional orchard across all seasons observing its imperilled and overlooked abundance of life. If we can favour traditional methods and harvesting, the benefit will not only be for wildlife but for people too.
All prices correct at the time of this article’s publication.
In 2018 , while still running a taxi business, an opportunity arose to purchase a few acres of local woodland on the edge of Dartmoor in Devon. Completed within a matter of weeks, Steve and Tamara Davey became proud custodians of their very own woodland!
When they discovered an impressive range of wildlife on their woodland site, they decided that the management of the area would be based on the continued provision of habitat for certain species, including seven recorded bat species, the visiting Nightjar and Woodcock.
We caught up with Steve to ask him about how they are supporting nature through their project Woodland Wildlife.
Can you tell me a little about your backgrounds.
Both Tamara and myself had childhood holidays in the Scottish Highlands as children, and there is no better place to develop an affinity with nature. It’s a place that holds a permanent residency within our hearts, those childhood memories imprinted on our futures. Mine were on the West Coast of Scotland opposite the Isle Of Skye. We used to stay in these old caravans that leaked and were powered by calor gas. The smell of the matches and gas appliances echoes those memories for me. The area was only a few miles up the coast from where Gavin Maxwell wrote his best-selling book Ring of Bright Water. As a family we spent a lot of time down at Sandaig ( in the book it was Camusfearna), Gavin’s books were really the only ones I read due to my interest in nature and love for Scotland. Above his hearth he had inscribed in Latin the words “non fatuum huc persecutus ignem” meaning, “it is no will o the wisp that I have followed here.” This phrase is very apt and resonates with our Woodland Wildlife project.
Aside from Scotland both Tamara’s and my childhoods involved getting out in nature with family walks, especially on Dartmoor. Also, similar to the book and film Kes, aged twelve I had a female kestrel to look after. My father converted the garden shed, and I remember rushing home from school every day. We looked after a tawny owl for a while too. Myself and our son also volunteered at a local bird of prey centre – these memories, and the knowledge you gain from an early age all lie dormant until the right opportunity presents itself later in life.
What motivated you to embark on the Woodland Wildlife project?
From the Spring of 2018 we made regular trips to the woodland because we couldn’t keep away and used to come up with loads of excuses to the selling agent on why we were visiting so often. We completed the purchase at the end of the summer. During the first twelve months we were staggered by the volume and diversity of the wildlife within our little plot and it was this that spurred us into creating Woodland Wildlife. I couldn’t believe that the domain woodlandwildlife.co.uk was available so I snapped it up. I then asked the web company that had recently rebuilt my taxi website to work on a website for Woodland Wildlife. They came up with the current logo which I really liked however the squirrel was grey and so I asked them to change it to red as that signified hope to me! At that point the future focus was more on the development of guided visits. In August last year we set up the Facebook page and that is seeing a steady increase of followers. We post on there most days and this time of year we may be posting up to eight times in one day, purely because of the observations – we are always finding new species to photograph. Through the winter months the posts are more project focused as that is the time of the year when most of the manual work is done.
Coppiced sweet chestnut protected from surrounding deer damageFelled young sitka used as dead hedging around boundary line
What has been the biggest challenge in returning the woodland back to nature?
The nature was already there, nothing has needed returning as far as we are aware. But with small sized plots sensitive management is vital, for instance; if you don’t manage that important grassy ride, over time succession will take hold and that habitat (in our case) would be overrun with bramble and bracken, therefore the grasses would die off and displacement of species will happen. Our grassy rides are alive with insect life and as far as we are concerned these areas are a priority within our plot. When you see how small an area our grassy rides are and you see how many species they are supporting such as: leaf hoppers, beetles, bees, hoverflies, moths, grasshoppers, crickets, butterflies you can then understand how vitally important these small areas are. I would say our biggest challenge is still ahead of us. In 2012 the main plot was clear felled and in 2013 the holding company planted over 2000 young sitka spruce trees. These are now over eight years old and growing rapidly in amongst the birch, sweet chestnut, beech and a few other species. Being on an easterly facing slope (after all it is Devon) we are giving careful consideration to future extraction of timber and to what extent the damage would be. We are mindful not to ruin everything that we have done over the years. so the plan will be (in conjunction with the Forestry Commission) to convert over to native woodland. We will still retain some sitka for the goldcrests and siskins, but these will be in the area towards the top of the plot, whereby future extraction damage will be minimal.
Sitka are awful trees to work on as they are very prickly to handle. Even though they are only young it’s incredibly hard work felling them and dragging them around to produce dead hedging. Our adjoining plot is a mature stand of Douglas fir of 3.5 acres and that has recently been thinned. The remaining stems will grow on for a further 5 to 10 years, with the extra light they will grow in girth and not height. We have tagged a random 30 stems and will monitor their growth rate annually. This is one commercial aspect to our project, we plan to nurture a healthy self seeded understory within this stand and re plant where necessary in the future when it’s felled.
Was there a particular plant or animal that you wished to see return to the woodland?
Yes, the nightjar, they are in the area this season which is great, last summer they were on our plot and we regularly saw two of them. Having your own woodland is one thing but having nightjar in your woodland is a priceless dream. We spent many summer evenings there watching them, calling them in with a recording of their call (yes that works). On a couple of occasions early in the nightjar season, June I think, they landed in front of us on a tubex shelter, attracted to anything white due to the males having white markings on their wing and tails. Our sleepy dogs got their attention and flew in to check us out. The video is on the website, it’s not brilliant as it was recorded on my phone, but a wonderful experience nonetheless. We observed them through to the end of July and on each occasion the sightings consisted of a brief checking us out and churring away like they do. A truly amazing bird that due to its nocturnal habits has not been an easy species to study. They like young plantations up to approximately ten years of age as after that the canopy has closed in. They also like birch and sweet chestnut, both of which we have in abundance. We are coppicing the sweet chestnut which will give a more diverse structure to the woodland and also has many benefits to other wildlife as well as giving longevity to the tree itself. The nightjars arrive in May and have normally disappeared by the end of August and sometimes into September. Once the young have fledged they will migrate. Our thinning works of the Douglas fir overran into May and we are certain that that level of disturbance (the sound and vibration of over 200 mature fir being felled) made them look elsewhere for a suitable nest site for this season. High hopes for next year!
In what ways can you draw an income from the project and how do you ensure that those ways are sustainable?
Part of the plot is mature Douglas fir, so over the years there will be an income from the felling of those but there also comes obligation and costs to re-plant. This area is 3.5 acres and we are hoping that at least 20% of that area will self-seed and will therefore not need re-planting. After 14 years of running a taxi company we have decided to pass it on to someone else as we want to concentrate on our woodland which will also involve craft sales. We plan to sell at an occasional local market, selling wooden products such as pendants, necklaces, key rings, hand made cards, Christmas decorations and fairy houses. All of the wood used will be from the bi product of our habitat work and therefore very sustainable. We are not skilled wood turners, I would describe our woody crafts as rustic. We also hope to offer guided visits for small groups of people who either want to immerse themselves into an incredibly diverse 8 acre plot of woodland that doesn’t have any public access( that’s called forest bathing nowadays), or groups and individuals that would like to visit to look at our management practises, it could also be for specialist groups to study bats, birds, butterflies etc. Although the craft sales will be necessary we do hope that the tours can be a success too as we will have great pleasure in sharing this unique place in South Devon.
Woodland Wildlife crafts to be sold on-site or at craft marketsSustainable felling and logging of Douglas fir
What would you say has been the project’s biggest success story so far?
This has to be the three small wildlife ponds created in the spring of last year. Our philosophy has always been that our work creates a biodiversity gain. The ponds are a totally new feature to the wood and therefore a totally new habitat with the nearest water course being in the bottom of the valley.
The ponds are host to pond skaters, diving beetles, water boatmen, frogs, toads and a few species of dragonfly. The mosquito larvae they produce is a food source for the seven recorded species of bats that we have there. The frogspawn and toadspawn this year was amazing. This is boosting the sites biodiversity and that feels great. The Devon Wildlife Trust’s, Batworks Grant, helped with the costs of the ponds which was very welcome indeed, because so far we have funded all the costs ourselves. The top pond was also designed with a very shallow gradient at one end so that any feeding nightjar can swoop in and get a drink on the wing.
Creating the pond by removing old stumps from a previous timber crop.The pond getting established early in 2020
The other success is our plantings, since Nov 2018 we have planted over 400 additional trees, shrubs and hedging. From scots pine to broad leaved privet, all-in-all over 20 new species have been planted. The hedging area consists of field maple, hazel, dog rose, dog wood, crab apple, blackthorn and hawthorn, and is growing well, albeit slowly. Once mature this will provide an incredible food source and habitat for many species. We also sought advice from a consultant ecologist on behalf of Butterfly Conservation, they recommended planting broad leaved privet, wild privet and alder buckthorn all of which will provide a valuable food source for many species of butterflies, insects and moths. The alder buckthorn being the food plant for the brimstone butterfly caterpillar.
Young Juniper planted and meshed around to protect from rabbit and deer grazingCoppiced Sweet Chestnut, stems cut on an angle to prevent water from rotting them
Can you offer any advice to anybody wanting to undertake a similar project?
There is a misconception that when you purchase some woodland in the UK that you are legally bound to manage your plot, but this is not the case. Currently you can do as much or as little as you want, there are legalities regarding volume of timber that you are allowed to cut down, and rightly so. Personally speaking I think there should be some sort of stewardship course involved with any woodland purchase, but generally speaking people who buy woodland do have the environments best interests at heart. Neither myself nor Tamara are formally qualified in land management or woodland management, but what we do have in bucket loads is the passion, and when it is your passion you absorb information like a sponge. If you are interested in purchasing some woodland please make sure you do a lot of reading up first, SWOG ( small woodland owners group) is a great resource. Think about things like how far are you willing to travel to get to your woodland, our journey takes 25 minutes but I know of some owners who live a couple of hours away and then that restricts those little journeys when you just want to go there for an hour or two. Think about public access and rights of way, access, species of trees on site, how neglected the woodland is because that may dictate how much physical work maybe required. I know owners that have a couple of acres of plantation and therefore their management work is negligible. Think about orientation, diversity and age of species and the potential value of the timber there. Getting a flat site is not easy and virtually impossible in Devon, some come with streams etc. You would need to appoint a solicitor as the conveyancing is similar to house buying but much more straight forward.
We would say to anyone interested in purchasing some woodland to definitely do it, it is an amazing thing to do, yes we can buy fancy cars and gadgets and go on expensive holidays but owning your own little piece of nature is a priceless thing to do. It’s more like guardianship than ownership, but you will have a lot of control over the future of that plot.
Love nature, it will never fail you.
Do you have any long-term plans for the future of Woodland Wildlife?
Well where do we start here? If money was no object we would like to deer fence large parts of our woodland to allow natural regeneration to occur unhindered. But money is an object so we will improvise and mitigate the grazing as much as possible. Luckily we are not overrun with roe deer but there are a few around. The damage they do to new growth is staggering.
Over time we would like to see part of our main plot restored back to its natural former state which was wooded heath. Around 1800 the wider woodland was mapped as a Down which would correspond with our small patches of heather and large amounts of gorse and bracken. Dry lowland heathland is a scarce habitat these days and we would like to re-nature that habitat along with keeping the coppiced sweet chestnut, birch and beech. The plan will be for the main plot to remain an open woodland with pockets of heath and grassy rides. We will keep some sitka on the higher parts of the plot.
This winter will involve widening the lower part of the North to South ride which is quite overgrown, creating a ride that will traverse the contours from the West to East ride. This will involve the felling of a lot more young sitka but it will kick start the project of connecting up some of our micro habitats. We are keen to provide a suitable site for the migrating nightjar and the wintering woodcock and this will involve a lot of physical work. Any major works such as this needs careful consideration for the future resilience of the woodland. All of our plantings have been carefully selected with the future in mind for example, the scots pine (although slow growing) is a fantastic tree that supports a large amount of wildlife plus once established will cope well with periods of dry weather. We have also planted some juniper and these trees will also cope admirably in dryer conditions and therefore the challenges of climate change. The naturalised species such as birch, beech, gorse, heather, bramble and bracken will naturally cope with dryer summers.
With regards to Woodland Wildlife as a business, we hope that the occasional small group or individual will continue to visit to experience this magnificent site. We aim to continue with the craft sales into the future. We aim to continue to document our species and our works. The emphasis will be on small groups as we are keen to prevent compaction of soils.
To find out more about Steve and Tamara’s fascinating project you can follow them on facebook and visit their website
Further Reading on managing woodlands for wildlife and people.
Managing Your Woodland for Wildlife
By: David Blakesley, Peter Buckley and Tharada Blakesley
Paperback| May 2016| £12.99
From conserving deadwood to putting up bat boxes: this book will appeal to small woodland owners wishing to improve woodland for wildlife.
Woodland Creation for Wildlife and People in a Changing Climate: Principles and Practice
By: David Blakesley and Peter Buckley
Paperback | July 2010| £5.99£24.95
This book presents a comprehensive and richly-illustrated guide to the principles and practice of woodland creation for wildlife and people.
A Journey in Landscape Restoration: Carrifran Wildwood and Beyond
Edited by: Philip Ashmole and Myrtle Ashmole
Paperback | June 2020| £16.99£18.99
An inspirational account of the rewilding of Carrifran Wildwood, showing what can happen when locals take charge of landscape restoration.
The Wood: The Life and Times of Cockshutt Wood
By: John Lewis-Stempel
Paperback | March 2019| £9.99
A lyrical diary of four years spent managing three and half acres of mixed woodland in south west Herefordshire.
All prices correct at the time of this article’s publication.
Curious About Nature provides a passionate voice in support of fieldwork and its role in ecological research. Comprising a series of chapters written by forty diverse contributors, this inspiring book hopes to encourage both new and seasoned ecologists to pursue outdoor learning and research as often and fully as possible.
Tim Burt (who edited the book alongside Des Thompson), recently took the time to answer some of our questions.
Editor Tim Burt, in the field.
Firstly, could you tell us a little bit about your backgrounds and how you came to be collaborating on this book.
We have both been involved with the Field Studies Council since 2006 when Des joined the Board of Trustees (I have been a trustee since 1982), but we had worked together before then, for example, a conference on the future of the British uplands held in Durham in 1999.
What are your first memories of fieldwork?
As I note in my essay in Curious about Nature, I came under the spell of an inspirational teacher at secondary school, Jim Hanwell. My first memory of fieldwork is being sent to measure the width of the main road outside the school gate to compare with the width of the red line printed on the OS map. Not something that would be done these days given health and safety concerns, but nevertheless I was hooked! Jim’s main influence was in physical geography, geomorphology especially, with many field trips to the Mendips and even an expedition to Spain and Portugal.
Some of the most well-known and respected scientists in history have had an incredibly varied range of interests and passions. Take Darwin, for example, who not only studied plants and animals, but also geology, anthropology, taxidermy and medicine. Do you think that, in modern times, we no longer celebrate or respect the ‘generally curious’ and instead expect people to be much more specialist in their areas of expertise?
Specialist research is inevitable in these very competitive days; departments compete via research assessment rankings and individuals must build their CVs to gain promotion. But in my experience, the best academics retain a breadth of interest; in physical geography this invariably combines fieldwork with other skills back at the department.
Editor Des Thompson
You currently hold the positions of President (Tim) and Chairman (Des) of the Field Studies Council and, as such, must both feel passionate about the education of field skills. With increases in health and safety concerns alongside reduced funding for outdoor activities, have you observed a change in child and youth education over the past decades in terms of the amount of fieldwork that takes place?
Health and safety concerns can (and must) be sorted out; it is continued funding that puts field trips at risk. The value of outdoor education is important for all sorts of reasons, not just academic knowledge and understanding. There is a real threat at the moment, with next year’s focus on getting schoolchildren back in the classroom. Senior administrators must be convinced of the value of investing in fieldwork, otherwise it is an easy cost to cut. But at what eventual “cost”?
Editor, Tim Burt
At NHBS we sell a lot of equipment that is purposely designed to limit the amount of time that researchers and naturalists have to spend in the field – such as motion-activated trail cameras. While these are the preferred choice for many researchers, do you think that there benefits to traditional, observational fieldwork that cannot be replicated by collecting data remotely?
Field equipment has always been necessary, even in the days of clockwork mechanisms and pen-and-ink chart recorders. Today’s digital equipment expands the possibilities, not limits them. But it is still vital to be out in the field, curious about what is happening and what you can see – this is how new ideas are generated. There is no substitute for standing on a hillside, thinking about the landscape in front of you, especially if you happen to be somewhere very different to England like the badlands of southern Utah!
Do you have a favourite fieldwork pioneer (included in the book or not) whose story you find particularly inspiring?
People always think of Charles Darwin as a biologist, but he was equally a geologist on the Beagle, and his geological observations during his circumnavigation of the globe remain fascinating to read, for example, his thoughts about the formation of coral reefs and atolls. He was very much a follower of Charles Lyell in his appreciation of the dynamic nature of the Earth’s surface.
Finally – what are you each working on currently? And do you have plans for further books?
We do have plans for a further book together, an elaboration of Curious about Nature, with a working title In the footsteps of Gilbert White. For my part, I have been drafting chapters for Durham weather and climate since 1841, to be published by OUP. Last year I co-authored a book (with Stephen Burt, no relation) about the weather records at the Radcliffe Observatory in Oxford, so the new book is complementary to that, with much the same structure, but clearly a different regional focus. I ran the Oxford weather station for 10 years and have been in charge of the Durham station since 2000.
Curious About Nature is edited by Tim Burt and Des Thompson and is published by Cambridge University Press. It is available from nhbs.com in paperback and hardback.
Silvertown (plant ecologist and science writer) was the member of the New Naturalist editorial board who oversaw my book. He liked the site based approach and encouraged me to use it throughout the book (his own popular book on plant diversity ‘Demons in Eden’ had used a similar approach). In many ways the approach grew out of my tendency to ‘tell stories’ when talking about ecology to beginning undergraduates. So in part the book is my lecturing style turned to prose.
Because of the relatively early start of academic ecology in Britain the country has a number of very long running ecology field experiments. For example two I write about in the book are The Park Grass experiment at Rothamsted (started 1856) and the Godwin Plots at Wicken Fen (started 1927). Neither was started with the idea that they would run for 100 years or more – there is a large element of chance in their long-term survival. However, once an experiment has been running for a long time then people start to realise that such long runs of data are important and try and find the resources to continue them. More recent examples include (amongst many) the Buxton Climate Change Impacts Lab (which commenced in 1993 on limestone grassland in the Peak District) and grazing experiments set up in the Ainsdale Dunes system in Merseyside (started in 1974). But to be really long term requires luck and/or a succession of people determined enough to keep them going against the odds.
Some of the most well-known and respected scientists in history have had an incredibly varied range of interests and passions. Take Darwin, for example, who not only studied plants and animals, but also geology, anthropology, taxidermy and medicine. Do you think that, in modern times, we no longer celebrate or respect the ‘generally curious’ and instead expect people to be much more specialist in their areas of expertise?
