Hoopoe – A blog by nhbs – The NHBS Conservation Hub

This Week in Biodiversity News – 13th January

Wildlife

Water Vole populations are undergoing a national decline in the UK. A new report from the Wildlife Trusts, The National Water Vole Database Project Report, was released last month to document the findings of a nationwide investigation examining Water Vole distribution over the past ten years. Although the report documented a 39% decrease in the number of occupied areas across the UK, it also identified a further 11 new regional key areas of increasing local populations, including several in East Anglia and Yorkshire. The report reveals a bleak national picture with declines across the country due to habitat loss and deterioration, but shows that in the right conditions, and with the help of conservation practitioners, it is possible to reverse their historic decline.

Bumblebee on a lavender flower — Image by Indy via Flickr

Conservationists have observed active worker bumblebees nest-building in Scotland during the winter months. Unusually mild weather during the Christmas period has led to early awakening from hibernation, and at least two species have started to build new nests early in the winter season. However, the subsequent return of cold weather and the scarcity of winter food sources pose a significant threat to these early nests, risking their collapse. In this instance, fewer queens would be available to build nests in the spring and could contribute to the national decline of bumblebees.

Conservation

The National Trust has announced plans to create 250,000 hectares of biodiverse landscape. Equivalent to 1.5 times the size of Greater London, these nature-rich landscapes across England, Wales and Northern Ireland will address a current national need and are estimated to provide habitat for 1 billion earthworms. Labelled audacious yet achievable, this goal will be actioned on Trust properties, but also in partnership with other organisations, farmers and communities, to create larger tracts of landscape to tackle the climate and nature crises.

Male Lynx in the snow — Image by Tambako the Jaguar via Flickr

Last week, Lynx were reported in the Cairngorms National Park. A total of four animals were illegally released and subsequently captured by the Royal Zoological Society of Scotland (RSS), where they were taken to be quarantined at Highland Wildlife Park (later one sadly died). The source of these animals remains unknown, but experts have raised concerns about the nature of their release – these animals were released in sub-zero temperatures within areas of logging activity, which has been deemed a highly irresponsible action that has drawn criticism from conservationists.

Climate Crisis

2024 marks the first calendar year to surpass the 1.5°C warming limit. Now thought to be the world’s hottest year on record, 2024 has brought the world closer to breaking the international warming target of 1.5°C – although this target is based on long-term temperature averages, last year’s trends signify an upturn in global temperature, with the last decade being the warmest on record. Predominantly due to harmful greenhouse gas emissions, which are still at record highs, this record is met with calls for cuts in emissions over this calendar year.

Wind turbines at sunset — Image by Michael Mueller via Flickr

The UK generated its cleanest electricity ever in 2024, with 58% from low-carbon sources. The amount of electricity generated from fossil fuels has halved in the past decade, with the UK having seen an upturn in the use of renewable energy sources. In the past twelve months, renewables have generated 45% of the UK’s power, and when including nuclear sources, this number totals to 58%. Despite this, fossil fuels are still generating approximately 29% of electricity in the UK, and in order to meet climate and emission targets experts are urging for an accelerated phase out.

Finance

In a ‘landmark’ deal, the world’s first private sector loan based on biodiversity net gain unit models has been granted. Triodos Bank UK has loaned £3.85m to environmental consultancy Nature Impact – the money will be used to purchase a total of 122 acres over two sites, unlocking degraded farmland for biodiversity net gain. These degraded sites will undergo restoration and habitat creation, including native wildflower meadows and wetlands, to enhance their support of British wildlife and climate goals.

Habitat restoration site with wildflowers — Image by Robert Miller via Flickr

Ecologists at Oxford University have designed a new framework to classify how a unit of nature is defined for biodiversity credits. In the review, researchers acknowledge the lack of clarity on how one unit of nature is defined, or how measurements are standardised, and demonstrated the challenges involved with the biodiversity credit market. It presents a framework exploring how biodiversity is quantified, how positive outcomes are detected and how the number of credits can be adjusted to account for uncertainties. The authors caution against biodiversity credits to offset negative impacts, and instead direct focus on avoiding and reducing these factors.

Author interview with Richard Lewington: Pocket Guide to British Spiders

Featuring 130 of the most common and readily available spider species, Pocket Guide to British Spiders is the ideal companion for both beginners and more experienced enthusiasts alike. Detailing identifying features, webs, egg cocoons and behaviour, these accounts are interspersed with beautifully illustrated spreads showing similarities and differences at a glance, making this introductory guide the perfect companion for use in the field.

Richard Lewington is a renowned wildlife illustrator, whose beautifully detailed drawings feature in a wide array of identification guides including The Butterflies of Britain and Ireland, Field Guide to the Moths of Great Britain and Ireland, and Field Guide to the Bees of Great Britain and Ireland. In 1999, he was awarded Butterfly Conservation’s Marsh Award for the promotion of Lepidoptera conservation, as well as the Zoological Society of London’s Stamford Raffles Award for contribution to zoology in 2010.

We recently had the opportunity to speak to Richard about his latest book, including how he first became an author, why he chose to focus on arachnids and which techniques he uses to create these stunning illustrations.

Firstly, can you tell us a little bit about yourself, and how you first became an author and illustrator?

I became a freelance wildlife illustrator soon after leaving art college in the 1970s. I’ve always had an interest in the natural world, particularly butterflies and moths, so invertebrates were the subjects I concentrated on right from the start. I’ve always worked in collaboration with various experts, until about 25 years ago, when I wrote and illustrated my first book How to Identify Butterflies. Since then, I’ve written and illustrated five books, though most of the books I work on are collaborations with authors with specialist knowledge of the subjects.

Pocket Guide to British Spiders is your 29th identification guide published since 1979. What inspired you to focus on arachnids for this book, and how did you choose which of the 680 British species to include?

I’ve had an interest in spiders for many years and have a collection of paintings, some of which I did about 50 years ago. I thought they would form the basis of a pocket guide, and I added more illustrations in the last few years to go with those I already had. The aim was to include common, well-known and easily identifiable species – about 130 in total. As many spiders are very small and similar to each other, it is necessary to examine them through a microscope to identify many of them, which is the next step up for those who want to study them in greater detail.

I was surprised to learn about the somewhat limited conservation efforts being undertaken to protect endangered spider species across Britain. What are the largest threats to spiders, and how can we protect these vital invertebrates in the future?

As with much of the natural world, spiders are under threat from habitat loss and pollution, but because they don’t have the same appeal as some other groups, they receive less attention. However, they are just as important, helping to keep the balance in ecological systems by eating and being eaten by a vast number of other creatures. Gardens are becoming more important, and we can all help spider well-being by not being too tidy in the garden to encourage a good variety of mini habitats in which they can live.

Pocket Guide to British Spiders includes a vast amount of detail on nomenclature, structure, anatomy, mythology, identifying features and more. What was the most interesting thing you learned while researching this book?

Probably their diversity. They vary hugely in size, shape and colouring, and can be found in every habitat from mountain tops to beneath the surface of water. Many also occur throughout the year when many other invertebrates are dormant.

Having illustrated many guides throughout your career, can you give us an overview of the techniques you use to create such detailed works of art, and explain how your painting style has evolved over time?

I start by doing a detailed, measured drawing on layout paper. This is transferred to watercolour paper and, using Designers’ Gouache paints, I apply washes, gradually building the colour intensity and the effect of light and shadow. Details such as textures and highlights are added to give a three-dimensional appearance. More recently, I’ve been scanning the artwork before sending it to the publishers, so that I can adjust, enhance and touch-up the images using a tablet and image enhancing software.

What were the most difficult aspects of illustrating spiders, given their intricate and often microscopic features?

Spiders can’t be preserved in museum collections like butterflies and beetles, as they have soft bodies which shrivel after death, so working from live specimens or from detailed photographs are the best options. This means going into the countryside to find specimens and asking other spider enthusiasts to help. I like to take my own macro photographs from the exact angle to avoid any distortion, I can then work using the photos and the live specimen, observing it under my microscope. It’s also necessary to have a good knowledge, so that the subjects can be correctly identified, as some are very similar.

Finally, what’s taking up your time at the moment? Are you planning to write or illustrate any more books over the coming years?

My next book will be a field guide to Orthoptera, which I completed several years ago but has been long delayed. After that I shall be working on a project about my work as a wildlife illustrator, concentrating mainly on British moths, butterflies and their caterpillars.

Pocket Guide to British Spiders is available from our online bookstore.

The NHBS Seed Sowing Calendar: January-March

Planting and watching seeds grow is one of the most rewarding parts of having an outdoor space. From a young age I can vividly remember chilly winter trips to the garden centre, picking out different bulbs and seeds to plants in time for spring, followed by an agonising wait for the last few frosts to pass to allow us to start planting. This patience was however rewarded with my favourite task – exuberantly poking a million holes in compost-filled trays – before carefully sowing the seed in the soil and gently covering them in a blanket of compost.

To this day, I still get just as excited when spring is around the corner, and I can finally turn my wintery, plain garden into a hub of vibrant flowers and wildlife. But with so many different bulbs and seeds out there, all of which working to very different schedules, it can sometimes be overwhelming when thinking about where to start, what to sow when, and where.

Here, we provide a detailed Seed Sowing Calendar to make sure you’re on-track for those beautiful spring blooms in just a few months time.

Close up of lots of Sweet Peas in mixed colours including pink, fusia, purple and white. — Sweet Peas by the Walled Garden 02 by Sam Saunders, via flickr.

January:

January is still very much in the grasp of winter, so most seeds sown outside will perish due to the cold and frosts – therefore it is recommended that seeds are planted in trays or pots that can be kept in an enclosed greenhouse or indoors in a warm, dry, sunny place to ensure successful germination.

Sowing this early in the year means that you’re more likely to get a good, healthy crop come springtime, but it does require a lot of patience and attentiveness.

Sweet peas – Lathyrus odoratus

Sweet peas are one of my favourite flowers and produce vibrant, fragrant blooms in a range of stunning colours. They are natural climbers, therefore they should be grown up a cane, netting or trellis, and can reach approximately 2m in height. Seeds should be planted 1cm deep in trays or individual pots filled with compost in late winter (January – February) and watered 2-3 times a week. As soon as the last frost is over, and the soil is loose and pliable, transfer the seedlings outside. When the plants are tall enough to reach the canes, manually wrap the stems securely, but gently, around them – the plants will naturally take to climbing the higher they grow.

Carnations – Dianthus caryophyllus

Carnations produce small, fringed flowers on long stems and should be grown in small to medium pots or planters with good drainage. The seeds should be planted about 0.5 cm deep, in potting soil or compost, covered in a layer of soil and pressed down firmly. Place them in a warm, sheltered space inside and water 2-3 times a week using a spray bottle. When the seedlings reach 5cm tall, transfer outside after the frost has passed.

You can also sow carnations directly into the garden once the frosts are over, normally in late April, however it’s unlikely they will bloom the first year if they are sown this late in the spring.

Lobelia – Lobelia erinu

Lobelias are beautiful, colourful little bedding plants that are very hardy and will produce flowers from early summer to mid autumn. They are easy to start indoors, and need well drained, loose soil to thrive. Sow the tiny seeds liberally across the surface of the soil in a large seed tray, cover loosely with a thin layer of compost, and gently press down to ensure the seeds are fully covered. Place the tray in a warm, sunny position and water with a light mist. Ensure the soil stays moist while the seeds are growing inside and transfer into the garden once the frosts have ended.

Close up photograph of orange and red tagetes (french marigolds). — Tagetes patula by Tacowitte, via flickr.

February:

February is the ideal time to start sowing most summer bedding plants, as well as perennials that grow year on year. Due to the colder temperatures, it’s recommended that most flower seeds are still grown inside to begin with.

French Marigolds – Tagetes patula

Marigolds are very easy flowers to grow and are equally easy to maintain once they’re bedded into the garden. Fill a tray with compost and press the seeds 1cm deep into the soil, then cover lightly with another thin layer. Plant each seed 5cm apart to allow for growing room, and water every couple of days to keep the soil moist – but not soggy. You can then plant the seedlings outside in early spring (mid to late March) in pots, planters, beds or hanging baskets when they are a few inches tall and the weather is milder. Marigold seeds can also be planted directly outside, but you should wait until late spring (April – May) or early summer (May – June) to do so, otherwise they may not germinate in the cold weather.

Snapdragons – Antirrhinum majus

Snapdragons are bright, annual plants that come in a wide range of colours and heights, and attract an array of garden insects. They require a lot of light to germinate, so make sure you don’t cover the seeds with too much soil. Simply put the seed on top of the soil in a tray, cover with a very thin layer of compost and compress with your hand, before watering once a week. Place in a warm, very sunny location and, if sown in one large tray, thin the crop to one seedling per pot when the seedlings have developed 2-3 leaves. Snapdragons can be transferred into the garden after the final frost of spring and should be spaced 30cm apart to give them enough room to grow into full blooms.

Wild Flower Bed showing a mix of pink, white, yellow and purple flowers. — Wild Flower Bed by Pete Sandbach, via flickr.

March:

By the time March comes around, the soil is slowly starting to warm up and frosts are a lot less frequent. During this time, some of the toughest flowers can be sown directly outside, as well as summer-flowering bulbs.

Cornflowers – Centaurea cyanus

Cornflowers are small, vibrant blue flowers that grow best in full sunshine. They can tolerate freezing temperatures, so these seeds can be planted outside throughout the winter. If you are planning to sow Cornflowers nearer spring, plant the seeds straight into soil or planters about 5cm apart and 1cm deep, and water once every 3–4 days. Cornflower seeds are loved by many garden birds, so to make sure your hard work isn’t wasted, ensure they are covered with a good layer of compact soil.

Cornflowers take approximately 10 weeks to flower if they are planted in spring, so these beautiful flowers will brighten up your garden in no time!

Wildflower mixes (native)

Late March is the perfect time to plant your mixed wildflower seeds to produce a beautiful range of native flowers, colours and scents, and most importantly provide food, shelter and habitats for key pollinators such as bees. Wildflowers are best sown straight outside in large beds or planters. Break up any large lumps of soil, then generously sprinkle the seed mix before carefully raking over the seeds, ensuring they are fully covered up. Gently water the area after planting, ensuring that you don’t dislodge the seeds with too much water, and watch them bloom!

Water your wildflower garden twice a week to ensure the soil doesn’t dry out, particularly over the hot summer months.

If you are keen to begin your wildflower garden early, you can plant them in February if the weather remains mild and dry.

Cosmos – Cosmos Bipinnatus

Cosmos can be grown both inside and outside, and thrive is sunny areas of the garden. They germinate very quickly and produce vibrant, tall flowers. If you prefer to start your flowers inside, yielding blooms in early summer, sow the seeds in individual pots in mid to late March in fresh, loose compost. Each seed should be 2mm deep in the soil and should be covered in a thin layer of compost. Place the individual pots or trays into a larger seed tray and water from below. Transfer into beds in the garden four to six weeks later, or after the last frost.

If you prefer the ease of planting seeds directly outside, or are a little late to the party, wait until the weather is mild and drier in early May before scattering the seeds straight onto evenly raked soil and covering lightly. Water every few days until the plants are well established, but be careful not to overwater as this will cause fewer buds to grow on each plant.

Small green seedling in a terracotta pot in compost. — Mystery seedling by Joe Lipson, via flickr.

Top Tips:

– Make sure to label your seed trays or pots if you’re growing a variety of different seeds at once, as it is very easy to get mixed up!

– Ensure that any seeds grown inside are only kept in moderately warm places – too hot a temperature, such as by a radiator, can cause the seeds to perish, so it’s recommended to take advantage of sunny windowsills and French doors instead.

– It can be beneficial to ‘pinch out’ bedding plants in the early stages of growth to ensure they focus their energy on big, strong, bushy blooms, rather than becoming tall and leggy. This helps produce side shoots that should all bear flowers, but it is advisable not do so until the seedlings have grown at least two sets of leaves or you risk damaging the plants. To pinch out a plant, gently cut the growing tips just above the side shoots, repeating on as many stems as you wish until it resembles the shape you’re after

– Even if you miss the opportunity to start growing your seedlings inside, it’s rarely too late to grow your seeds if they are in season. Instead, you can plant them straight outside when the milder weather arrives, and will simply have later blooms – so you can enjoy beautiful flowers during the summer months instead.

This Week in Biodiversity News – 30th December

Conservation

Tasmania’s farmers are helping to conserve native grassland. These critically endangered habitats have undergone widespread deterioration due to historical agricultural practices, and remaining patches are degraded and fragmented throughout the state. An innovative partnership between landowners, the Tasmanian Conservancy and Bush Heritage Australia – the Midlands Conservation Partnership (MCP) – was formed to conserve and protect native grassland on private property through empowering farmers to manage their land sustainably.

Tiger in Jacksonville Zoo — Image by Caitlin Regan via Flickr

A growing number of zoos across the globe are reporting animal death by avian influenza. The virus appears to be spreading throughout captive animal collections, which could have grave, and potentially fatal, consequences for endangered species – already, zoos have reported deaths of a number of threatened species, including lions, tigers and panthers. It is thought to have been spread through infected wild birds landing in open air enclosures, and experts emphasise the need for enhanced biosecurity, or vaccination, to ensure the safety of captive animals.

A leading wildlife expert is calling for the legalisation of rhino horn trade. Martin Wikelski wrote to the journal Science, urging authorities to take the market out of criminal hands, in order to establish carefully monitored, legal transactions and regain control of the market. Wikelski argues that monitored trade could help to raise money for increased protective measures and save the last remaining populations, since crime syndicates have overcome every countermeasure that has been implemented to protect rhinos thus far.

White rhino in South Africa — Image by Ian Turk via Flickr

Discoveries

Twenty-seven species new to science have been discovered in a survey in Peru. A 38-day survey in Alto Mayo, a well-populated region in north-west Peru, has uncovered over 2,000 species of wildlife and plants, including new, rare and threatened species. Of these species previously unknown to science, there are four mammals, an arboreal salamander, seven species of new fish, a frog, ten butterflies and two dung beetles – and a further 48 species are awaiting verification before confirming their discovery. Alongside these exciting new discoveries, the expedition identified 49 threatened species from the IUCN Red List, including birds, amphibians and primates, and it is hoped that these discoveries will bolster conservation work in the region.

A recent study has discovered that right whales may live almost twice as long as previously thought. Four decades of photo identification data was used to analyse the life expectancy of Northern Atlantic Right Whales and Southern Right Whales. Researchers observed a life expectancy of up to 150 years for Southern Right Whales, and a contrasting 22-year average for North Atlantic Right Whales – primarily due to anthropogenic impacts, including entanglement in fishing gear, ship collisions or starvation which could be linked to environmental change. Authors plan to expand the scope of the study to examine other whale populations, in order to learn more about how whaling practices have impacted the abundance of older individuals and allow for estimates of recovery to pre-whaling population sizes.

Wildlife

Data shows that almost three quarters of the UK’s Sites of Special Scientific Interest (SSSI’s) have had no assessment of their condition since the start of 2019. These sites consist of ecologically valuable habitats, wildlife and natural features, and are legally protected to prevent environmental degradation. In the last assessment, nearly 40% of features were in unfavourable condition, and without further monitoring, conservationists warn that British wildlife could be disappearing unnoticed. In response, a long-term programme is being developed by Natural England to determine SSSI assessment, as well as making improvements to monitoring and data use.

a clutch of bird eggs in a nest — Image by Lisa Risager via Flickr

Over 6,000 wild bird eggs have been seized in the UK. In the largest haul of it’s kind, raids from Scotland, South Yorkshire, Essex, Wales and Gloucester uncovered thousands of wild bird eggs in attics, offices and drawers. The raids took place under Operation Pulka – an international effort tackling wildlife crime, especially the trading of bird eggs. Harvesting by egg collectors is placing additional pressures on already threatened and rare wildlife, and for species with a limited geographic range, could be the difference between existence and extinction.

Author interview with James Shipman: Identifying Bats of Britain and Ireland

Packed with insider information, Identifying Bats of Britain and Ireland offers expert guidance on how to identify bats in the hand for beginners and field ecologists alike. Filling a gap between introductory books and more technical volumes, this humorous guide uses detailed images, diagrams and tables to communicate, in simple terms, the fundamentals of bat ecology, survey equipment, techniques required when training for a bat licence and the key features that distinguish one species from another.

James Shipman is an ecologist and bat enthusiast who loves to inspire and motivate future bat workers. He works as a senior ecologist and is involved in numerous bat-related projects. In 2016 he was recognised with the Bat Conservation Trust’s Pete Guest Award for outstanding contribution to bat conservation.

We recently chatted with James about his inspiration for the book, which challenges he faced when constructing a detailed identification guide and more.

Can you tell us a little about yourself, your history of working with bats, and why you chose to write this book?

Originally I planned to work as a game ranger in South Africa, but after returning to the UK, I studied zoology, met my wife and fell into landscaping as my first career and passion. A roofer and a builder both mentioned that I may ‘like’ working with bats, as I’m an animal person, so I explored the idea of them as a hobby!

After a few events I was gripped, and I have now volunteered with bats for nearly 15 years with the intention to install passion, enthusiasm and fun into everything bat-related for volunteers and professionals! Within this time I have helped to train over 50-75 individuals (could be more, I don’t count!) and after nearly 20 years in the landscaping sector, I now work in ecology as a professional.

During my years of training, I found that the more serious and technical books available out there made it hard to learn, and that digestible guidance that was fun, relatable and easy to work with would be beneficial! A lot of my trainees suggested the idea for the book originally, and other bat authors with Pelagic mentioned to the publishers that I would bring a nice approach to ID for ecologists – so here we are.

You have taken a relatable, and oftentimes humorous, approach in the way Identifying Bats of Britain and Ireland was written. Why did you feel this was important, and with that in mind who is this book designed for?

Who said science, research and volunteering can’t be fun! If you enjoy what you do, it’s more fun and you usually get more out of it!

I thought it was important to bring my open, welcoming personality to bats and volunteering into the book, as well as an understanding of how hard it can be to learn in the world of ecology.

Public opinion of bats is often contested, and their associations with rabies and vampirism contribute to this negative perception. This guide contains a section on the myths and rumours of bats – why did you feel it was important to debunk these misconceptions?

Well spotted! It’s one of my favourite parts of any walk, talk, training or even in the book itself. Bats have such a negative view through media – whether it’s Halloween, Covid or other diseases, the positives (not just bats but anything in life) are very rarely talked about! So let’s try and win one for the bats – 2,000 less mosquito bites a night is a good seller!

This guide also features vagrants and species that are extremely rare in the UK. How did you navigate writing about species that you may not have met? And did you find it challenging to construct identification guidance for these scarcer species?

Fortunately I have handled and seen these species abroad in my years of volunteering and training (which I will touch more on in your last question), and I have even been lucky to handle one or two of these in the UK too!

The hardest part of it all was trying to address the elephant in the room (or maybe I should say vagrant in the sky!). I believe there are now 21 species found in the UK – some of these are not proven residents, but are not far off – plus a few others that I chose not to include at the time of publication as records were too scarce!

Were there any other challenges that you came across in the process of writing this book?

As previously mentioned, mental health is important in all areas of life, and I felt that slight delays in finishing this book were due to anxiety of judgement on the final product. However, many close friends and ex-trainees assured me that more positives will come of this work than negatives.

The book is aimed at any level of bat worker and should taken with a light hearted approach. It’s important to address these things when discussing books and publishing – it’s a hard process, and without friends, family and a decent publisher (plus the bats) you can sometimes feel isolated. Luckily, I had the best support from all of the above!

What’s your advice for those just getting started in this field?

Well I could say read the book (haha), there are some good sections about starting out with bats. In short, don’t give up, persist, find bat workers who are open, friendly and passionate with no judgement (they are out there, I’m one of them), and most importantly have fun!

Finally, what’s next for you? Do you have plans for more books in the future?

Um… a break! It’s harder than I ever imagined. However, I would love to eventually write a similar book for bats of Europe! But it may take a while to compile some new jokes!

Identifying Bats of Britain and Ireland is available from our online bookstore here.

Book Review: Lost Wonders

***** An emotional gut punch of a book

When you think Sixth Extinction, animals and plants such as the St. Helena olive, the Bramble Cay melomys, or the Christmas Island forest skink are unlikely to come to mind. And therein lies a problem: behind the faceless statistics of loss lie numerous stories of unique evolutionary lineages that have been snuffed out. In this emotional gut punch of a book, author and journalist Tom Lathan takes the unconventional approach of examining ten species that have gone extinct since 2000, nine of which you will likely never have heard of. Lathan momentarily resurrects them to examine what led to their loss and speaks to the people who tried to save them.

The one species and individual you are likely to have heard of is Lonesome George, the last Pinta Island tortoise, who received much media attention both in life and in death. The remainder are barely known outside of the small circle of conservationists who studied them. Of the unfortunately long list Lathan obtained from the IUCN, he has chosen a nicely balanced mix of species. Each chapter opens with a tastefully executed pencil-and-ink drawing by Lathan’s partner Claire Kohda. The geographic spread similarly includes organisms from around the globe (though no maps have been included, which would have been helpful). What unites these species is that they all lived, literally or functionally, on islands (environments prone to evolutionary experimentation and extinction), and they are no longer with us.

Each of the ten chapters mixes several elements such that, despite most chapters being quite long at 30–40 pages, all are very engaging. Lathan introduces what we know about their biology and how the frequent paucity of information frustrated subsequent attempts at captive breeding. By telling the stories of their discovery and formal description, Lathan answers his question of whether naming a species “is itself a life-giving act” (p. 28): it allows us to formulate conservation plans, making naming “the difference between life and death” (p. 29). Of course, species exist before we describe them, and his overview of their evolution is a potent reminder of this. It also highlights how, given enough time, organisms can reach remote islands and establish themselves there, despite the odds not being in their favour.

All of the above is relevant background information, but we are here for the stories of what went wrong. In the introduction, Lathan emphasizes just how incomplete our knowledge is: there is both a long queue of species awaiting assessment by the underfunded IUCN and an even larger pool of “dark extinctions” (p. 4): species that vanish before we even know of their existence. These stories are “a snapshot of extinction […] each a stand-in for other[s] that we will probably never know occurred” (p. 4). There is that importance of taxonomy again.

If extinctions of Pleistocene megafauna can reasonably be attributed to a mixture of human hunting and climate change, the fingerprint of more recent Holocene extinctions is clearly human. Lathan points out that our species is “one of the most potent agents of ecological destruction, regardless of time, place, or culture” (p. 135). For instance, the arrival of native Polynesians to Hawai’i already triggered a wave of extinction, such that the arrival of Europeans “was more like a passing of the baton in an ecocidal relay race” (p. 136). That said, in his next breath he immediately recognizes that European colonialism cranked up extinction to eleven—it is a good example of Lathan’s balanced reporting. What follows is the usual litany of rapacious resource extraction that destroys natural habitats and the accidental or purposeful introduction of invasive species. The two often work in tandem.

The strongest suit of Lost Wonders is the nearly 50 interviews with scientists, conservationists, hobbyists, and others whose first-hand experiences and frustrations imbue this work with much pathos. There are stories of species slipping through our hands as their habitats vanished (e.g. the Bramble Cay melomys, a rat, or the Alagoas foliage-gleaner, a bird); of ignored warnings, bureaucratic red tape, and apprehensive committees delaying meaningful action (e.g. the Polynesian tree snail P. labrusca or the Christmas Island pipistrelle); and of captive breeding efforts failing (e.g. the Mexican Catarina pupfish). By asking how the people involved experienced witnessing extinction, each chapter delivers an emotional gut punch that, I will not lie, sometimes brought me to tears. Some people still struggle talking about it, even a decade or more later, breaking down during their interviews. Others describe feelings of grief, depression, and loneliness, unable to truly share with others what they experienced. Lathan himself in his epilogue expresses his astonishment at “their capacity to articulate the profundity of what they had witnessed” and wonders out loud: “When a million years of evolution is extinguished right in front of you, what words suffice to describe this moment?” (p. 351).

Taking a step back to compose myself I do, however, have two points of criticism; or, if not criticism, two points I feel have been omitted. First, there is the proximate question of whether trying to save a species at all costs is always the best use of the limited time, money, and other resources available for conservation. Not everybody agrees it is, and e.g. Inheritors of the Earth provocatively argued that island species are evolutionary dead ends, vulnerable to invasion. Are resources better spent on populations that still stand a decent chance? A counterargument could be made that, yes, these attempts *are* worthwhile because we learn how to improve our protocols, techniques, and technologies for the inevitable next extinction. My point is that Lathan does not broach these questions here. I would have loved for him to wrestle with these and put them to his interviewees. Second, there is the ultimate question of what it would take to turn the tide of extinction, of what such a world would look like. I judge him less harshly on this because very few authors seem willing to mention the root causes that got us here. His interviewees gave him several openings at broaching thorny topics that he did not pursue. This is another set of questions where both his views and those of his interviewees could have further enriched the book.

The above suggestions would have been cherries on the cake but, as it stands, the proverbial cake is both edible and rich. Lost Worlds is an incredibly moving book that tugs at the heartstrings and draws on an impressive number of interviews. These eyewitness stories are a powerful reminder that behind each reported extinction lies a tremendous amount of work, and the loss of a unique way of life on this planet.

Lost Wonders is available from our bookstore here.

This Week in Biodiversity News – 16th December

Environment

An area larger than India has permanently degraded into arid conditions, research shows. Studies by the UN Science Policy Interface have reported that up to three quarters of the world’s land has experienced likely irreversible drying in the past thirty years and now, arid drylands make up 40% of land on earth. Driven by climate change, poor farming practices, excessive water extraction and many other factors, this drying could see significant decreases in crop yield, GDP, and a reduction in the capacity of the land to store water.

viviparous lizard — Image by David Evans via Flickr

A two-year restoration project in Avon Heath Country Park will help to restore a rare habitat. Funded by Defra, £1.2 million will be used to restore this Site of Special Scientific Interest (SSSI) that is home to 2.5% of the world’s remaining lowland heathland. The 210-hectare site provides key habitat for all of Britain’s native reptiles, including Smooth Snakes and ground-nesting birds such as Woodlarks and Nightjars. Restoration work will involve the removal of invasive rhododendron, scrub and pine trees to rejuvenate the heathland and increase the availability of light for low-lying plants.

Conservation

A recent survey has shown that Grey Squirrels are invading Red Squirrel strongholds. Conducted by Red Squirrels Northern England (RSNE), the survey assessed 246 sites for an annual squirrel check. The survey found a rising presence of Grey Squirrels in Red Squirrel strongholds, a trend described as ‘concerning’ by RSNE project officers. These invasive, non-native species were found in 69% of surveyed sites, a 6.8% increase from last year and are now outnumbering Red Squirrels in Cumbria and Northumberland. However, RSNE successfully recorded a 2% increase of Red Squirrels in survey sites, up from 50% in 2023.

Cutting-edge technology is being used to inform forestry management in the UK. Forestry England is employing bioacoustic technology, environmental DNA (eDNA) and drones to inform conservation efforts across multiple sites. EDNA gathered from soil, air and water is being used to build a better picture of community composition across 21 forestry sites, and after four months of sampling, 5,000 unique fungal species and 1,000 invertebrate species have been identified. Bioacoustic data is also being gathered across four areas in Somerset, Dorset, Northumberland and North Yorkshire and will be used to track bumblebee activity through analysis of flight sound. This detailed data will be used to form a new biodiversity baseline to monitor the effectiveness of conservation efforts in the midst of biodiversity decline and climate change.

A light brown rodent is sat on a river bank underneath grasses, it has small black eyes and a small brown nose — Image by Peter Trimming via Flickr

A reintroduction project has seen the return of Water Voles along the Severn shoreline, levels and moors of North Somerset and South Gloucestershire. Led by the West of England Nature Partnership (WENP) in collaboration with Bristol Zoological Society, the programme is seeking to restore intertidal habitats, wetlands and peatlands, and part of this will be actioned through re-establishing Water Voles in the area. Avon Wildlife Trust have observed evidence that these animals have returned to the area, contributing to the region’s Local Nature Recovery Strategy.

Policy

Angela Rayner has been met with criticism following an interview discussing Labour’s housing pledge. With plans to build 1.5 million homes and fast-track over 150 major infrastructure projects, wildlife protection may take a back seat. Rayner expressed concern for those who desperately need housing, stating that providing homes in the UK should not be sacrificed for wildlife protection. Despite critics deeming the targets ‘unrealistic’, Rayner assured that compliance with national building plans would be mandatory under Labour’s National Planning Policy Framework.

Great crested newt in a hand — Image by Chris H via Flickr

Vital scrubland habitats are at risk following Labour’s announcement to build on grey belt land. Prime Minister, Sir Keir Starmer, has pledged to build 1.5 million homes on redefined green belt land, known as grey belt land. With what some call a ‘vague definition’ of grey belt land, swathes of countryside could be sacrificed for housing developments, in areas that could have been transformed to woodland or wetland habitats. This traditional landscape is vital for wildlife, including birds, reptiles and amphibians, and could prove essential in meeting 30×30 targets.

Author interview with Peter Marren: Rare Plants

Featuring hundreds of stunning photographs, the 14th volume in the British Wildlife Collection explores the meaning of rarity in our changing world and climate. It discusses the importance of these species in our landscape, provides an overview of different conservation techniques, examines the justifications for intervening in the life of a wild species and more.

Peter Marren is a natural history writer and conservationist whose wildlife-centred writing portfolio includes newspaper journalism, obituaries, book reviews and humorous opinion pieces. He was a regular contributor to British Wildlife magazine for 33 years and is the author of more than 20 books, including Bugs Britannica, After They’re Gone, and Mushrooms – the first title in the British Wildlife Collection series.

We recently chatted with Peter about Rare Plants, where we discussed how he first became interested in botany, why he chose to focus on rare species, what inspired him to return to the British Wildlife Collection and more.

Firstly, can you tell us a little bit about yourself, and how you became interested in botany?

I have been interested in wild flowers since boyhood. I was lucky enough to have had a rural childhood, but my first serious attempt to track down rarities was during my gap year when I tried to find every British species of orchid. I failed.

What I love about flowers is that they evoke so much about our surroundings, the colour and texture of the landscape, its land-use and history, and its seasonality. Rare flowers in particular express the fine tuning of nature, and their presence suggests that here we are standing in a special place – one that, for whatever reason, has changed less, has perhaps preserved more of its naturalness, more stability. They are also wonderful in themselves. Orchids, for instance, trick and confuse insects into doing their bidding. Our alpine flowers are living links with the Ice Age. Bluebells have a scent that is impossible to reproduce chemically. These are some of the reasons why I love field botany.

Your first contribution to the British Wildlife Collection was the first monograph in the series, Mushrooms, which was published in 2012. What inspired you to return to this renowned series for the 14th volume?

I returned to the series because Katy, who edits the titles, asked me to! In the 1990s I wrote a book in association with Plantlife and the then English Nature, titled Britain’s Rare Flowers (1999). The rights are now owned by Bloomsbury, who publish the British Wildlife Collection, and she suggested that I revise the book for the series. It didn’t take long for a revision to turn into a completely new book, and I broadened the scope from angiosperms to wild plants in general, including pteridophytes, bryophytes and algae, and to Ireland as well as Great Britain – hence, Rare Plants. I dedicated it to my old friend, the plant photographer Bob Gibbons and his partner Libby, and half the 300-odd images are his.

Cottonweed (Achillea maritima) by Liam Lysaght, via flickr.

Why did you decide to focus on rare plant species for this book?

I concentrated on rarities partly because they are the focus of conservation efforts, and partly because they are the highlight of any excursion (as botanical trips are known). Rare plants have more ‘geography’. If only you knew enough, you could probably place yourself exactly where you are in the landscape without recourse to a map simply by looking at the plants. Britain is that kind of place: intimate, complex, infinitely varied. Above that, there’s the eternal thrill of tracking down a rarity, whether it’s a flower, or a bird, or a Ming vase. If you love plants, then setting your eye for the first time on an elusive species you have long known about and pictured in your mind is a moment to savour. As I hope I communicated in my book, Chasing the Ghost.

This is an incredibly well-researched and detailed book that covers all aspects of Britain and Ireland’s flora, from the uniqueness of some species and details on why plants become rare, to their role and representation within our culture. What was the most interesting aspect of researching this book?

What I enjoyed most when researching Rare Plants (and it was quite an enjoyable book generally) was the impressive new work on apomictic plants, that is, the ones that do without sex and so perpetuate minute differences. It helps that whitebeams and hawkweeds are not only beautiful in themselves, but tend to grow in beautiful landscapes. I was also enthralled by all the activity in the world of mosses and liverworts, mapping them in the same detail as ‘higher’ plants and getting them onto the conservation agenda. Some species have incredibly narrow niches, confined to lead mining spoil or lime kilns, or china-clay pits. Both are the work of relatively small groups of specialists who combine biological know-how with the ability to communicate to wider audiences – and to take brilliant photographs. I could say the same about lichens, but they aren’t really plants. So someone else will have to do them.

Eyebright by Donald Macauley, via flickr.

In the first chapter of the book, you discuss the IUCN’s criteria and red list. How accurate do you think this assessment is, and are there any disadvantages to using this method of classification to determine the rarity, and future protection, of any given species?

The IUCN criteria are only as good as current knowledge allows. Conservationists love to list and pigeon-hole; it creates a kind of order. But, in a rapidly changing world, the vulnerability of species is itself changing. Government and officialdom haven’t yet caught up with climate change and its implications for our flora. I think the most endangered plants are now our northern and arctic-alpine species, especially those that need long, cold winters with plenty of snow. It isn’t outright habitat destruction so much as the subtle consequences of a warmer but wetter and windier climate. The other problem with pigeon-holing is that it is boring. It creates the idea of fragile ‘things’, like pieces of china, and diverts our eyes from the marvels of the living plant with its ability to meld with its habitat, compete with its neighbours, and find necessary partnerships to survive.

The same idea of plants as passive ‘things’ has led well-meaning conservationists to substitute gardening for conservation. Plant conservation is under-funded and, alas, also under-expertised. Academic botany is in decline (count the university courses – not many).

Lady's-Slipper Orchid - Cypripedium calceolus by Bjorn S, via flickr. — Lady’s-Slipper Orchid – Cypripedium calceolus by Bjorn S, via flickr.

Finally, what’s taking up your time at the moment? Are you planning on working on any future volumes in the British Wildlife Collection?

I doubt I’ll be writing any more books for this series. They take a long time and I’m getting on a bit! Besides, these are hard times for writers who aren’t footballers or chefs, or others who have become famous from constant exposure in the media. While the natural history bookshelf has never been more bountiful, some of us are working for less than the minimum wage! I’ve recently finished a book (my 27^th, I think) about the world’s most noxious plants called The Devil’s Garden, which was fun, and I hope will be fun to read. I love plants that defend themselves with alchemy, vicious thorns and stings, horrific poisons, or play mind-games with their pollinators; in short those with a wicked reputation. They provide an antidote to the idea of plants as passive and compliant.

Vivat flores!

(Long live the flowers)

Rare Plants is available from our online bookstore here.

A Beginners Guide to Fungal Spore Printing

Whether you are a budding mycologist or a creative naturalist, spore printing can be a fantastic way to learn more about the intricate biology of fungi, and offers a unique glimpse into their inner structure. It is quick, simple and requires few resources to get started, allowing you to uniquely capture fantastic detail in just a few hours.

In this beginner’s guide, we delve into why we make spore prints and share how to capture the perfect print for identification or decoration.

What are spores?

Spores are the primary reproductive unit of fungi, consisting of haploid cells that contain the genetic material required to reproduce. They are generally released from the gills or pores located underneath the cap of the mushroom, where they are then distributed through the environment via air currents or animal movement. Once the spores have landed on a substrate with a suitable growing environment, they form hyphal threads, gradually building a mycelial network. When environmental conditions are ideal, the mycelium will develop to produce the widely-recognised, and widely loved mushroom fruiting body.

Why make a spore print?

Spore prints are used for a range of reasons and are an essential skill for budding mycologists.

For those interested in mycology, or even foraging for food, spore prints can help with fungal identification by analysing the shape, size, colour, pattern and density of spores (although exercise caution with foraged goods as spore printing alone is not a reliable form of identification). It is also possible to observe spore characteristics microscopically to aid in identification, which can be done by obtaining a print on a microscope slide.

For collectors and enthusiasts, it is possible to grow your own mushrooms using the spores collected with this technique, and many others choose to simply admire their intricate biology with this informative process.

Death Cap mushroom spore prints. — Spore print by Tom Hart, via flickr.

How to make a spore print

You will need:

White or black paper, foil or glass
A small, sharp knife or scalpel blade
A glass or bowl, depending on the size of the specimen
Artists lacquer spray (hair spray will also work)

Method:

Find a suitable mushroom and ensure that the fruit is mature. This technique works with gilled and pored mushrooms, bracket fungi and oyster-shaped mushrooms.
With a sharp knife, carefully remove the stipe as close to the cap as possible, without disturbing the gills around the stem.
Place the cap gills-down onto a piece of paper. For darker coloured spores, use white paper for a clearer print, and vice versa for white spores. If you wish to grow mushrooms from gathered spores, foil is often chosen for its sterility and glass is preferred for those wishing to observe spores under a microscope.
Cover the cap with a glass or bowl, depending on the size and let it sit for up to 12 hours. Covering the mushroom creates an air trap, allowing the spores to fall directly onto the material used for the print.
After 12 hours, remove the cover and allow to fully dry for a day or two. If you are planning to display your print, lightly (!) spritz with artists’ lacquer spray or hairspray to secure the spores.

To safely store spore prints, fold over and secure in a sealed bag at room temperature, or frozen if you plan to cultivate in the future.

Recommended Reading:

The Lives of Fungi

Filled with stunning photographs, this book invites the mycologically curious for an insider look into the hidden world of our planet’s diverse decomposers.

Collins Fungi Guide

A richly illustrated guide to the fungi of Britain and Ireland, this book ensures clear, detailed descriptions for accurate identification.

Mushrooms and Toadstools of Britain and Europe, Volume 1

This third edition illustrates over 650 species in stunning watercolour and features drawings of spores and other useful microscopic features to aid identification.

Opticron Hand Lens 23mm 10x Magnification

An essential part of any naturalist’s field kit, a hand lens will allow you to observe the finer details.

Dissection Kit

Equipped with a range of tools, this dissection kit is suited to mycologists, botanists and entomologists alike, and features a scalpel and forceps for sample manipulation.

Mycology Field Beginners Kit

This comprehensive kit equips you with all the essentials to observe and document fungi in any weather, including a 10x magnification hand lens, weatherproof notebook and four waterproof identification guides to gilled fungi, non-gilled fungi, grassland fungi and common fungi.

Field Guides of the Year

Whether you’re shopping for a seasoned wildlife watcher or a curious beginner, these expertly crafted books are perfect for exploring the natural world. From identifying British wildflowers and lichens, to migratory bird calls and hoverflies, these field guides offer invaluable insights and stunning visuals. Here, we have selected a few of our favourite field guides of 2024, just in time for Christmas!

ID Handbook of European Birds (2-Volume Set)

This groundbreaking photographic reference book provides the most in-depth coverage of European birds available to date and features stunning high-resolution photographs of over 733 European species to aid identification – a must-have for any birder.

Britain's Hoverflies book cover showing a hoverfly from above perching on a daisy.

Hoverflies of Britain and Ireland

A beautifully illustrated photographic field guide focusing on the most readily identified hoverflies in Britain and Ireland. This fully updated third edition covers an additional thirteen species and contains remarkable photographs of hoverflies in multiple life stages to aid identification for beginners and seasoned naturalists alike.

Mammal Tracks of Europe

From passionate naturalist, photographer, illustrator and author David Wege, Mammal Tracks of Europe covers the tracks and trails of 72 European mammal species. It features detailed, life-sized drawings of tracks and animal portraits, with species names written in eight European languages to make an accessible field companion for trackers and naturalists across the continent.

Lichens of Ireland & Great Britain: A Visual Guide to Their Identification (2-Volume Set)

Brimming with detailed descriptions and lavish illustrations, this monumental work describes over 700 species and covers a wealth of information including biology, ecology, microscopy, and a short history and lichenology. As such, it is an invaluable reference guide for both beginners and experienced lichen enthusiasts.

An Identification guide to trees of Britain and Northwest Europe

An easy-to-use introduction to the identification of 89 tree species across Britain and North-West Europe. Expertly photographed, the trees featured in this guide are captured throughout the seasons and feature close-up details to effortlessly distinguish between species.

Brown Seaweeds (Phaeophyceae) of Britain and Ireland

The culmination of over 30 years of study, this book offers the first complete, up-to-date illustrated guide to nearly 200 species of British and Irish brown algae, including unique coverage of the lesser-known, more cryptic, or microscopic varieties. This exhaustive reference work contains over 300 compound plates of photographs and line drawings to complement its extensive coverage of distributions, morphology, anatomy, taxonomy, life histories and more, making it an indispensable research tool for phycologists and students.

British & Irish Wildflowers and Plants

Brimming with full colour photos and macro shots, this pocket-sized book allows for straightforward identification of the most common wildflowers and plants found in Great Britain and Ireland. It was designed with all capabilities in mind for a seamless identification process, with clearly illustrated drawings, species description and simple visual keys.

Bird Pellets

The first complete photographic guide to bird pellets, this book showcases a wide range of pellets produced by different species, including owls, hawks, waders and various garden birds. Pellets from each species are analysed in detail, and readers are informed of how to identify the remains of small mammals, reptiles, amphibians, fish, invertebrates and other birds. This must-have guide fills the gap in bird pellet knowledge and will prove to be invaluable to enthusiasts and field workers alike.

Identifying Migratory Birds by Sound in Britain and Europe

Learn to identify migratory birds with this extensive auditory guide. Often neglected in traditional birding guides, this unique work describes calls with precision and details the flight behaviour of over 450 species. It contains over 1,000 downloadable sounds and annotated sonograms, allowing readers to visualise, identify and memorise flight and contact calls of all European migratory species with ease.

Field Guide to the Orchids of Europe and the Mediterranean

This completely revised second edition draws on the latest research to produce an accessible, easy-to-use guide to the orchids of Europe and the Mediterranean. Written by some of the foremost experts on the group, it is richly illustrated with over 2,000 photographs, demonstrating with great clarity the natural variability seen in over thirty genera, including natural hybrids, making it an essential resource for orchid enthusiasts and botanists alike.

Smithsonian Trees of North America

Ten years in the making, this insightful work provides readers with an indispensable illustrated source to hundreds of North American tree species. Visually stunning and insightful, John Kress shares over 3,000 images of identifying characteristics and includes hundreds of range maps for the group. It also covers the diversity, structure, form and beauty of trees, and provides an in-depth introduction to their biology, conservation and value. A monumental marriage of science and art, this important book will be an invaluable reference for future generations.

Wild Flowers of Britain and Ireland

Building on the expertise of the first edition by award winning photographer, botanist and mycologist Roger Phillips, this seminal work is the perfect guide to help both beginners and experienced botanists learn about the wildflowers they see around them. Whether in urban green settings or the countryside, identification has never been easier with this updated and extended addition. It features over 1,000 photographed and illustrated wildflowers, detailed descriptions and extensive background information to create an essential photographic guide.

Field Guide to Birds of Greater Southern Africa

An essential reference guide to all resident, breeding and migrant species for anyone exploring or living in the wildlife-rich landscapes of Southern Africa. Part of the Helm Field Guide Series, this field guide describes over 1,000 regularly occurring species in the region, illustrated in 272 colour plates by three of the world’s leading bird illustrators.

Frustrating Flowers & Puzzling Plants

Coming to the rescue of exasperated novices and those troubled with unfamiliar and complex groups, this accessible guide identifies a new approach to identifying difficult plants. The author directs readers to parts of the plant in which to investigate more closely for accurate identification, using user-friendly keys and diagnostic illustrations. This novel approach was designed for those getting to grips with baffling or cryptic specimens.