Hazel Dormouse by Frank Vassen via Flickr (CC BY 2.0)
The dormouse nest tube problem
At NHBS, the environmental impact of our products, both in terms of their manufacture and eventual disposal, is at the heart of our manufacturing business. Of equal importance is the practicality of their design and how fit for purpose they are for their users. With this in mind, we are always looking for ways to both design new and improve existing products based on current research and feedback from our customers.
Last year, we began to apply this thinking to our dormouse nest tubes. We had some concerns about any tubes that might be left behind at survey sites, thus polluting woodlands with unwanted plastic. We were also thinking ahead to the disposal of tubes that, following years of use outside, are no longer fit for purpose and which must then be thrown away.
With this in mind, our manufacturing team began developing an alternative, biodegradable version of our dormouse nest tubes.
The current plastic dormouse nest tube
A new environmentally friendly design
Dormouse tubes consist of a plastic sleeve into which slides a wooden tray that also serves to seal one end when in place. These tubes create a dark and narrow enclosure that is ideal for dormice to build their nests. By strapping a number of these tubes to horizontal branches in a suitable woodland, they can be used to determine the presence of dormice by periodically inspecting them for evidence of nests and/or inhabitants. As this is a standard survey technique within the UK, our new, environmentally friendly dormouse tubes would need to be able to be used in the same way.
Our new design would use the same wooden inserts in combination with a modified sleeve constructed from Earthboard. Earthboard is a plastic-free biodegradable material, often used to make tree guards. It is coated with a non-toxic water repellent coating which makes it suitable for use outside, lasting for up to two years before decomposing naturally. Critically, being plastic-free, Earthboard does not shed microplastics into the environment.
Its relatively slow breakdown means that Earthboard would be ideal for our purposes. It would last for more than a single survey season in the field and, if accidentally left outside, would decompose naturally over time. Any tubes that fell to the ground would take around 16-20 weeks to break down and, at the end of the season, they could be recycled in the same way as cardboard (although they are not suitable for home composting due to their relatively slow rate of natural decomposition).
In 2023, our manufacturing team produced a number of Earthboard sleeves that were compatible with our existing wooden inserts. These were sent to several of our customers and associates who kindly agreed to undertake some field tests during the 2023 survey season.
Initial field tests
At the end of the dormouse survey season, our field testers helpfully provided us with lots of feedback. Unfortunately, not all of it was good. While most were broadly positive about the intention of the product, there were some significant problems.
The most serious of these was that, after a short amount of time in the field, deterioration by the elements meant that the tube was no longer a good fit for the wooden insert. The top of the plastic tube became curved, thus creating a space into which light, draughts and moisture could enter, making the tubes much less desirable to dormice as a nesting location. Similarly, the relatively pale colour of the Earthboard meant that the interior was not as dark as that of the original plastic tubes, again making it less attractive to dormice.
After a period in the field the Earthboard tube proved a poor fit for the wooden insert and allowed light and draughts to enter the nesting space.
A further concern related to how dormouse tubes are generally used. It is typical for ecologists to collect all of their tubes at the end of the survey season and re-use them in subsequent years. It is unusual for tubes to be left in the field, unless they cannot be located for any reason. Equally, there is a cost factor involved. Although Earthboard is suitable for recycling with cardboard via kerbside waste collections, which makes their disposal preferable to traditional plastic tubes, the need to purchase new sleeves at the beginning of each season isn’t an attractive option for most ecologists.
So, what next?
Due to the lack of positive feedback, along with concerns about the practicalities and economics of these biodegradable dormouse tubes, we have decided not to continue with their development. Despite the fact that this particular project didn’t ultimately lead anywhere, however, we are incredibly proud of our continuing endeavours to improve our products and make sure they are as user friendly and environmentally responsible as possible.
We would like to thank everyone that was involved in field testing this product and taking the time to provide us with such valuable feedback. It is only through constant communication and cooperation with our valued customers that we can continue to design, manufacture and provide such high-quality products and support conservationists worldwide.
Wildlife Acoustics recently announced that the Echo Meter Touch (Standard and Professional versions), can now be upgraded so that they can be used with Apple iOS devices. There are a few important steps to take when upgrading.
Which Apple Devices can be used?
Wildlife Acoustics have stated that only new Apple devices that have a native USB-C connector on them will work. This means that any lightning connector-based devices will not work with the upgraded EMT even if you have a lightning to USB-C cable. If you have an iPhone 15 (all versions) or later you can use the upgraded Echo Meter Touch.
How to upgrade your Echo Meter Touch
Firstly, make sure you have the EMT with the USB-C connector. Micro-USB will not work with this upgrade specifically for Apple devices. Here are the steps you have to take:
1. Check to make sure you have the latest Wildlife Acoustics app installed on your Android Device. When you update the app it should display an announcement telling you that Apple is supported.
2. Plug your EMT into the Android device.
3. Using the menu found in the top left corner of the screen (displayed as three horizontal bars). Select Settings.
4. Scroll all the way to the bottom of the Settings menu, and select Advanced Settings.
At this stage the app will tell you what version of firmware you have on your EMT. If it is version 2 or later, then you do not need to update to get iOS compatibility. However if there is a new firmware update, even if your device has version 2.0 or later, you should update the EMT to get the best possible experience from the EMT.
5. If the EMT is shown as having version 1.3 the app will offer you a later version of firmware.
6. Select Update Module Firmware – DO NOT UNPLUG YOUR EMT Device
7. Let the app perform the upgrade and is will display the notice saying a firmware upgrade has been successful.
8. Once, this appears, remove your EMT from the Android device, and re-insert it to double check the device is updated.
Now that you have accomplished the firmware update you should insert the EMT into your Apple device. If you have downloaded the Wildlife Acoustics app to the Apple device it should function correctly.
As spring emerges, naturalists across the UK aredusting off their kit to begin exploring the great outdoors. From bird watching to bug hunting, we have equipment to help you explore. Below, we have compiled a list of must-have equipment for wildlife watching this spring.
Viking Cygnus Monocular
The Viking Cygnus Monocular in-field.
Excellent optics combined with a grippy, rubberised armour make this handy monocular the ideal companion this spring.At only 287g, The Viking Cygnus Monocular is a lightweight, showerproofmonocular with a small form factor, designed for easy handling for any hand size. Created for quick access and target acquisition,this monocular featuresa smooth action barrel adjuster for precise focus adjustment and a larger objective lens for high colour imagery.
For a smaller, even more lightweightalternativeweighing only 140g, the 8×25 MK2 magnification monocular is ideal for quick and easy use, where a smaller objective diameter lens is counteracted by its handy size.
Opticron Explorer Compact Binoculars
The Explorer Compact BinocularsbyOpticronwould make an excellentaddition to any naturalists kit this spring. A fully armoured, roof prism body provides comfort and extra grip for comfortable carrying in–field. With a weatherproof, fold-down design, these are ideal for transport, and can be stored easily due to their size and weight (195g). The ribbed focus wheel and twist-type eye cups ensure a good field of view with easy focusing, and the use of multicoloured lens and high reflection coated prisms provide bright, crisp images. Available in 8x21 and 10x21.
Nikon Sportstar EX DCF Compact Binoculars
Available in 8×25 and 10×25, these high-quality,pocket-sized binoculars are waterproof and fog free. Turn and slide rubber eye cups allow for easy positioning, and multilayer coated lenses deliver a high optical performance with great clarity and well-balanced colour. The field of view is ideal for observing large landscapes, and partnered with a good close focusing distance, these compact binoculars also work great with insects.Weighing only 300g, these ultra-lightweight binoculars are ideal for travelling or working in–field.
Crushable Pocket Butterfly Net
Designed with a spring steel frame, this Crushable Pocket Butterfly net can twist for an easy collapse and can be folded down to pocket-size. This foldable, yet robust design allows for easy transportation and storage whilst in-field. The net is supplied with a short, brass handle but can also be used with telescopicand push-fit net handles if you wish to extend its reach.
WalkstoolBasic
Designed and manufactured in Sweden, the Walkstool Basic is a simple, 3-point stool made for outdoorsmen of any kind. Suitable for home use and in-field work, this compact resting stool weighs only 725g, making it ideal for packing and transporting. Available in 24”, the WalkstoolBasic is designed with comfort and sturdy support in mind. This highly portablestool has plastic foot ends and telescopic, extendable legs to account for uneven terrain. The sturdy aluminium frame and durable polyester seat make this stool a worthy addition to any explorers kit this spring.
Pocket Guide to the Bumblebees of Great Britain and Ireland
This handy, pocket-sized guide to the naturally occurring bumblebees of Great Britain and Ireland is a richly illustrated work accessible to beginners and more experienced naturalists alike. Each species has a dedicated double page spread, detailing its characteristics, habitat, distribution and sex differentiation, among others. This portable pocket guide provides an ‘at-a-glance’ guide to species. Ideal for exploring this spring, this handy book provides aninformative peak into the world of bumblebee identification.
Pocket Guide to the Butterflies of Great Britain and Ireland
Another publication in the Bloomsbury Wildlife Guides collection, the Pocket Guide to the Butterflies of Great Britain and Ireland features over 600 detailed illustrations on each species and their life stages. Detailing species information, distribution and life history, this pocketbook provides an accessible, easy–to–use guide to butterflies in Britain.
Field Studies Council Fold-out Guides
The Field Studies Council Fold-out Guides are ideal for days where full-sizefield guides are cumbersome. These handy species identification charts cover aneclectic range of themes, from mammal tracks and woodland plants to seashells and jellyfish. These weatherproof guides are a practical accompaniment to a spring stroll, find the full collection here.
This spring, traditional British lawns are out. Throughout the month of May, Plantlife urges us to let our gardens be wild with #NoMowMay. This exciting initiative encourages us to embrace a wild lawn this spring, providing plants, invertebrates and other wildlife the opportunity to make our gardens a home. No Mow May could transform your green spaces into a colourful kaleidoscope of flowers you never knew were there. From buttercups to bee orchids, here at NHBS we have had an astonishing array of wildflowers in previous years, and we are hoping that this year will be the same!
Knowing when, and how, to mow your lawn to encourage wildflower growth and minimise grass domination can be confusing, and there is no ‘one size fits all’ answer to supporting native wildlife. In anticipation of May, we outline the important things to consider when maintaining your lawn over the coming seasons.
Tightly manicured garden lawns are unable to host the diverse communities associated with a natural space. The artificially constructed environment, with uniform grass length and limited species, prevents our native wildflowers from blooming and our vital insects from settling.Lawn feeds and fertilisers often used to maintain our lawns can result in unnaturally high levels of soil fertility. Such levels can unintentionally diminish the diversity of flora within our gardens, since native wildflowers are adapted to low-nutrient conditions. Associated with higher carbon emissions, time consumption and overall cost, many are steering clear of a high maintenance lawn this spring.
A spring-flowering lawn provides a whole host of benefits for the wildlife within our gardens. Opting for a wild, native lawn provides essential breeding habitats, food sources and physical protection for a number of species.These spaces give wildflowers a chance to bloom and set seed, benefitting both insects, and the predators who rely on them.
Our Bee Orchid (Ophrys apifera) from #NoMowMay 2022. Image by Oli Haines.
So, how and when should we mow?
Less is more! Switching up your mowing routine, or refraining from a mow in some areas, is a great way to maximise diversity in your garden. After a short time, your outdoor spaces can flourish into a haven for wildlife. From voles to vetches, and even British reptiles, watch your garden transform from monoculture to a wild refuge.
Varied grass length, wild edges, or longer patches of lawn are great for attracting local wildlife to your garden. You may find orchids, ox-eye daisy and knapweed in these longer areas, which also provide cover for small mammals that may be wandering through, and shorter areas can boost pollen availability from low-lying flowers, like buttercups and clover. Plantlife advocates for a varied mowing approach with longer patches throughout the garden, alongside shorter areas (aiming to mimic grazing pressures of different herbivorous species in the wild). For instance, you might decide to maintain shorter pathways and areas around patios, but allow other areas of your green spaces to grow freely.
It is important to remove cuttings after lawn maintenance to prevent excess nitrogen in the soil, thus reducing nitrophilic plants (species with a preference for nitrate rich habitat, typically from fertilisers and the decomposition of organic material) in your garden. ‘Cut and rot’ management can be counterproductive when cultivating wildflowers, as low levels of soil nutrition are preferred by many and will harbour the most diversity. In fact, frequent fertilisation and additional nutrition can result in an overall decline of wildflowers, leading to a dominance of nitrophilic plant species.
A garden with varied grass length during No Mow May. Image by Allan Harris via Flickr.
Knowing when, and how, to mow during the year is key to maximise flowering of wildflower species, while simultaneously preventing grass domination: to do this, it is generally recommended to mow three times a year; early spring, late summer and in autumn.
A 3-inch, early spring mow is beneficial to kickstart the season, promoting early growth and blooming. An early mow can also help to tackle nitrophiles, like nettles and cow parsley. This can help to prevent competition, allowing wildflowers to grow undisturbed. However, be wary of mowing too early, as this can prevent wildflower seeding and will impact your gardens growth next year.
A summer mow in late July, or August, removes the previous growth, encouraging the bloom of wildflowers later in the season. As far as insects are concerned, the later the mow, the better. Insect species tend to hatch in the warmer parts of spring and summer, so a mow in late August will prevent harm to hatching individuals.
Around late November, an autumn mow can help to promote reseeding and encourages germination in the following spring. Allow the wildflowers in your lawn to finish flowering and let them go to seed, a mow after this allows the seedheads to disperse seeds into your lawn. An autumn cut can also keep grass growth under control, further encouraging germination.
There are also certain considerations to be wary of when forming wild areas in your garden. These habitats will attract a great number of species, who may make your lawn a home. Best practice involves leaving an area of your lawn untouched to house these species, but if you are looking to tidy up your garden after No Mow May, wildlife must be considered. Wildlife in our lawns can be harmed in the process of tidying up our outside spaces. It is recommended to disturb, or walk through patches to be maintained to shoo species from the area. On the first mow, start with a higher cut to give smaller animals a chance to escape. When mowing the lawn, start with garden paths and areas of high footfall, working toward the edges of the garden. This, again, provides wildlife with an escape route through the boundaries of your garden. If your garden has fences or hedgerows, a wildlife corridor along your borders is another way to support visiting animals. Untouched, or lightly managed, strips along these areas can provide a safe space for travel around the garden, providing cover and protection from predators.
Hedgehog by Kalle Gustafsson via Flickr.
How can we prepare for No Mow May?
If you currently use fertilisers, lawn feed, moss killers or pesticides, abandoning the use of these additives in your garden will allow the soil to recover from these harmful chemicals. This can provide microscopic and invertebrate soil communities a chance to recover, improving the overall health of your soil.
For some of us, early bloomers may already be present in our gardens. Cowslip, violets and primroses may be popping up on our lawns, showcasing the first few flowers of the season. You may consider allowing these to go undisturbed, giving them a head start for spring. Having said that, the best way to prepare for No Mow May is a 3-inch April cut to encourage a strong period of spring growth.
Whether or not you decide to mow the lawn this spring, consider leaving an area of your garden wild. Whether this be a natural lawn or rough borders, we hope you feel inspired to take part in this year’s #NoMowMay!
The UK’s first national assessment of earthworms has revealed that their populations decrease by 2% annually, and overall earthworm population numbers have fallen by a third over the past 25 years. This study, conducted by an ecologist at the British Ornithology Trust (BTO), also concluded that the largest decline in this species has been observed in broadleaf woodland ecosystems. This may now be having detrimental effects on other species, such as woodland birds, who have seen a subsequent population decline of 37% since 1970. Barnes’ study concludes that, if these results are found elsewhere, the long-term decline of this keystone species could affect our ability to grow crops, as worms aid the growth of 140m tonnes of food a year. It may also have catastrophic effects on soil health, ecosystem structure, function, and above-ground wildlife.
20060131 earthworm dives by schizoform, via flickr.
Global rainforest deforestation continues at a rate of ten football pitches per minute. Despite widespread efforts to minimise deforestation across the Brazilian and Colombian Amazon, new data has revealed that 37,000 sq km was still removed from previously undisturbed rainforests in 2023. Large increases were noted in Bolivia, Laos and Nicaragua, which has now offset the positive progress made by other countries in the reduction of deforestation. Experts have warned that governments are unlikely to meet their climate and biodiversity commitments due to the continuation of mass deforestation, with many going against the COP28 agreement to halt and reverse the loss and degradation of forests in the next six years. This puts the 2030 zero-deforestation target even further out of reach.
New research has revealed that national parks are failing to tackle the biodiversity crisis, despite these important areas covering 10% of England and 20% of Wales. Due to lack of government funding, the direct grant set aside for national parks has been cut by 40% since 2010, resulting in poor peatland condition, no change in woodland biodiversity in a 5-year period, and a significant decline in river and lake health. Aside from a lack of funding, national parks are not restoring nature as only 13.7% of the land is publicly owned, with the remaining 86.3% privately owned and often intensely farmed. Campaign for National Parks is calling for a new deal that ensures the government sets a clear mission to increase nature protection and restoration in the UK’s national parks, and subsequently double core national park grants to reinstate this vital funding to its 2010 level.
One of the world’s most elusive moles has been sighted in Australia. The Northern Marsupial Mole, or Kakarratul, lives in one of the most remote parts of Australia and is only sighted a few times each decade. Due to their rarity, authorities are still unsure of their population size and these creatures remain a mystery to most of the world. However, the Kanyirninpa Jukurrpa Martu rangers discovered the rare, blind Northern Marsupial while working in the Great Sandy Desert, making this the second species sighting in six months.
Progress has been made in the first ever shark translocation project, which aims to reintroduce Zebra Sharks to the Raja Ampat archipelago in Indonesia after the species was declared functionally extinct due to overfishing and habitat degradation. This is the first initiative attempting to translocate shark eggs from an aquarium to a hatchery before releasing them into the wild. Two sharks have recently hatched on the island of Kri and will be kept in tanks until they are strong enough to be released into the wild. The project aims to release 500 Zebra Sharks by 2032 in the hope of creating a genetically diverse breeding population that will aid long-term species recovery. If successful, this rewilding project will set a strong example of how to re-establish endangered species populations in marine ecosystems and would be a breakthrough for future conservation efforts.
A record hot March leads to fears of faster rates of climate change.Last month was the hottest March on record, reaching 1.68°C warmer than in pre-industrial times. This marks the tenth record breaking monthly temperature in a row, and scientists are concerned that they may not temporarily fall, as expected, after the El Niño period due to the warm weather experienced at the end of 2023. Researchers are now trying to ascertain whether the changes in El Niño are a phase shift or just an anomaly in long-term climate trends. Although they are unsure how conditions in the Pacific Ocean will evolve over the coming months, current predictions suggest it could be replaced by a full La Niña cooling phase.
The Mammal Society, founded in 1954, is a UK charity formed to support evidence-based mammal conservation in Britain and Ireland. The Mammal Society is involved in promoting and enhancing conservation initiatives working to restore mammals and their habitats, with the overall mission of securing thriving populations of native species.
The Mammal Society will be celebrating their 70th anniversary in 2024, which will be the focus of this year’s annual mammal conference. The conference will focus on the past challenges and successes of mammal conservation, and discuss opportunities for future work.
Matt Larsen-Daw is the CEO of the Mammal Society. Having worked with WWF for some time leading education programmes, Matt is now working with the local mammal groups at the base of the Society’s work. Alana Scott works as communications officer for the Society, with a strong history in conservation biology and ecology. She also has significant achievements in the reintroduction of Water Voles in southern Cornwall.
In anticipation of the upcoming National Mammal Week (22nd –28th April), we recently had the opportunity to talk with Matt and Alana about the successes of The Mammal Society, their upcoming 70th anniversary and goals for the future.
National Mammal Week is an annual event encouraging awareness and conservation of mammals. Image by The Mammal Society.
Firstly, could you give us a brief insight into how The Mammal Society came into existence back in 1954?
Seventy years ago, in 1954, The Mammal Society was formed under the name of The Mammal Society of the British Isles (TMSBI), following a meeting of prominent zoologists, naturalists and the Zoological Society of London. The aim was to link amateurs and professionals in promoting the study of mammals, and by doing so to power conservation of mammals at a time when an alarming decline in the populations of several species was already being observed.
Three years later the society started to deliver on its remit when it published its first book – A Field Guide to British Deer. Perhaps some well-thumbed 1st editions of this vintage text are still sitting on shelves? More likely readers may have one of the beautifully illustrated 4th edition copies of this handbook, published to coincide with another significant anniversary – the 60th year of the British Deer Society – in 2023. The British Deer Society is one of several organisations (including the Bat Conservation Trust and SeaWatch) that started their lives as subgroups within The Mammal Society, until their objectives became sufficiently ambitious and broad in scope to warrant a separate charity. This highlights one of the key roles that The Mammal Society has played over the past seven decades. By acting as a lightning rod for discussion and research around the big issues in mammal science and conservation, the Society has convened experts and enthusiasts to foster collaboration and initiate vital projects at all levels of mammal conservation. From collaborative research projects to species-focused organisations and grassroots local groups, the work of the Society has helped shape the mammal conservation sector we see today.
What do you think has been the key to the enduring success of The Mammal Society?
A key factor in the ongoing success of The Mammal Society is the community of mammal specialists and nature enthusiasts that has formed around it in the form of our members and local groups network. The staff team at the Society has never been big – in fact we are often assumed to be much bigger than we are, due to our vibrant social channels and the large influence we have on policy and practice. Our Council of Trustees, our Committees, and our ever-growing community of local mammal champions are just as important in the achievement of our aims. We are nothing without our members, and we hope that we give plenty back to those who join us in our mission to support and protect British mammals. Members receive our acclaimed seasonal magazine Mammal News, receive substantial discounts on our trainings and events, and have the opportunity to influence the priorities and projects of the Society. Why not join, or gift membership, today?!
At the hub of this thriving community of volunteers and supporters, the staff team arranges forums, events, training, campaigns and research projects that channel the huge energy and expertise in the wider community, while ultimately strengthening and energising that same community.
Our small size has allowed us to be agile and respond to urgent challenges quickly and efficiently – such as the discovery of the non-native Greater White-toothed Shrews in Britain in 2022. It also means our overheads as a charity are low – ensuring that we can put every penny of membership fees and donations to good use in our work to ensure a bright future for mammals.
ARK (Action for the River Kennet) participants of a Harvest Mouse Survey, 2023.
The world has changed a lot in the last 70 years. Have the key purposes and goals of the charity evolved during this time to adapt to this changing world, or have they broadly remained the same?
Conservation science is powerless without first being able to answer the questions ‘what to conserve?’ and ‘where to conserve?’; to do this we need to know, for each species, how large the population is, where it is (and was) distributed, and its status, threats and requirements. This science is exactly what The Mammal Society has been promoting since its inception, seeking to ensure that whatever the approach needed, it is undertaken in the right way – informed by science and data.
This central remit has certainly not changed. However, the role of The Mammal Society in the conservation sector was a hot topic of discussion in the first few decades. In 1963, a resolution was passed at a meeting that the Society should be ‘a scientific body to which those in authority can turn for factual information about mammals and mammal biology’, upon which to base a judgement of the conflicting claims of different champions. To be accepted as such a body, the Society should not itself become involved in any way with […] controversial matters. In other words, The Mammal Society should gather and present scientific facts but not campaign for any particular action to be taken. This perspective shifted within ten years, with members wanting the Society to be prepared to call for action where it was scientifically justified. Nowadays we certainly consider ourselves to have a key role not only in establishing scientific evidence, but also in ensuring it is seen, understood and acted upon to bring positive outcomes for mammals. Communicating the science and advocating for its application are as important as the science itself if we want change.
The other facet of our work that has become more important in recent years is communicating the importance and wonder of mammals to public audiences, in order to build public support for mammal conservation and encourage more engagement with life sciences – especially among younger people and communities currently under-represented in conservation. This objective is part of our remit to strengthen and energise the conservation sector. For example, our annual Mammal Photographer of the Year competition allows us to spotlight photographers who have captured beautiful and surprising images of mammals in the wild and inspire others to share in their wonder and excitement at spotting our elusive wild neighbours going about their everyday lives.
In 1995, The Mammal Society entered a new phase when it established a network of local groups that could monitor the state of mammals in their area and respond to local issues while playing a key role in contributing to a better national picture of mammal populations. Through this process of evolution, The Mammal Society moved from connecting amateurs to professionals in mammal conservation, to providing anyone concerned about the decline of mammals with ways to get involved and directly help tackle the key issues.
Some of these original groups are still going strong, and others have joined in the nearly 30 years since then. Led by volunteers, these groups provide opportunities for nature-lovers from all walks of life in their community to support citizen science activities that provide essential data and insight to inform mammal research, conservation practice and landscape management policy.
Now we have more than 30 local mammal groups in the network, and their contribution to projects such as the Mammal Atlas, the Harvest Mouse Survey and many other projects cannot be under-estimated – as well as the profound impact many have had on mammal populations locally through their targeted efforts. The Mammal Society have sought to guide and support these groups over the years, but we feel there is much more we could do.
Our new Local Mammal Groups Strategy (reflected in our new Local Groups Handbook) sets out how we intend to invest in growing, strengthening and diversifying the community of local mammal champions that participate in mammal conservation at the grassroots level through the local groups network.
The Squirrel and the Bee. Image by Garry Watson, winner of the Mammal Photographer of the Year competition, 2024.
Biodiversity loss and the climate crisis are key issues for everyone involved in conservation at present. What are your main goals for the coming years and decades?
Seventy years on, the challenges that need to be overcome to ensure a bright future for wildlife and people are just as daunting. This means that over the decades to come, our role as convener and mobiliser in the world of mammal conservation will be more important than ever. There is no doubt that reversing the loss of nature will require work from everyone, and the more joined-up those efforts are, the more positive the impact for wildlife and people.
As we move into our eighth decade, we continue to do everything we can to foster collaboration and inclusion in mammal conservation. We aim to bring the scientific insight and expertise of our committees, members, council and staff to strengthen and support any initiatives that can help address the threats faced by our native mammals. As an active member of Wildlife & Countryside Link, we are already adding our voice to those of varied stakeholders across the nature sector to call for urgent action to address issues and redress shortcomings in policy and practice. Via European Mammal Conservation Europe, we have strengthened joint challenges on issues such as the protected status of wolves in the EU. We are active contributors to the RSPB-led UK State of Nature Report, and members of coalitions and steering groups on various species recovery strategies. We continue to engage with government to ensure that policy and priorities are informed by science.
Our commitment to ensuring that everyone understands the importance of mammals, and can play a role in monitoring and protecting mammals, is reflected in our reinvigorated approach to supporting local groups – including an equipment loan scheme, free training for local groups, and an ambitious plan to see at least three new groups in currently under-represented urban areas by 2025. Alongside this our new school programme launches this year, creating opportunities for young people to explore and support mammals, and prioritising schools in areas of deprivation and serving communities under-represented in conservation.
Owl pellet dissection as part of the new school programme.
Seventy years as a successful charity is an incredible achievement, not to mention the research, support and training you have undertaken and provided during this time. How are you marking and celebrating this important milestone?
We’re spending 2024 looking back, and looking forward. We want to celebrate what’s been achieved over the past 70 years but also to take the opportunity to look at the challenges ahead and how we can all play a role in meeting them.
To help us highlight this significant milestone, talented illustrator Silvie Tonellotto has designed our beautiful 70th anniversary badge, which will feature on communications throughout 2024. You can see more of her work on Instagram (@silvietonelottodesigns).
The 70th anniversary badge, designed by Silvie Tonellotto.
One of the key things we are focusing on is celebrating the people whose actions are key to ensuring a bright future for mammals, and especially to show the rich diversity of people and variety of roles people can play in supporting mammal conservation. We have therefore marked this 70th year with the launch of a new awards scheme – Mammal Champions. NHBS generously supported the prizes for the 2024 awards, and we’re delighted to have been able to shine a spotlight on some incredible volunteers, campaigners and thought leaders.
National Mammal Week (celebrated in the autumn in previous years, but now moving to a new home in the spring) is 22nd to 28th April 2024. We’ll be celebrating the wonderful individuals shortlisted for Mammal Champions Awards, while also providing loads of opportunities for anyone in Britain and Ireland to find ways to become mammal champions in their own lives and communities.
Great Crested Newt (Triturus cristatus) – CC Leonora (Ellie) Enking via Flickr
Great Crested Newts are the UK’s most strictly protected amphibian, requiring licensed ecological surveys if a development may affect them. As the first signs of spring emerge, ecologists are preparing for the start of this year’s newt survey season. Below, we have compiled a list of the most common newt survey methods and the equipment needed for each, so that you can ensure you have everything you need as the survey season approaches.
Netting for adult and larval newts can be a useful tool in both survey and relocation. Here at NHBS, we have designed an amphibian net specifically for the safe and efficient capture of newts. The net bag is attached by a wide velcro collar which prevents newts from becoming caught between the frame and the bag. The bag can also be removed from the frame to be disinfected between sites. The seams have been carefully placed so that they do not come into contact with the front edge of the net, and the material of the bag is a soft 2mm mesh. The net head is 300mm wide and comes with a sturdy, wooden 1.2m handle. We also sell a diamond-shaped amphibian net that comes in either standard depth or deep. Its shape is ideal for easy and safe capture for amphibians and is also available in a collapsible frame for easy transport between sites.
Bottle Trapping
Bottle trapping is a popular method of surveying for both detecting and assessing populations. It can, however, become quite labour intensive, especially if you are looking to cut bottles into traps yourself. To save yourself some valuable time, we sell pre-cut bottle traps with the head inverted and ready to deploy. These can be bought in packs of 40 or 120 and are cut from 2L PET bottles with a 28mm neck diameter. Alternatively, we sell the whole bottles if you would rather cut the traps yourself.
Torching
Torching is a less invasive and effective method of counting/observing newts without the need for capturing them. Torches are recommended to be between 500,000 and one million candlepower and need to ideally last several hours at a time. The Cluson CB2 range is very popular among ecologists and provides 1 million candlepower with long lasting battery life and an easy-to-use pistol type grip.
Drift Fencing
Fencing can either be used to temporarily exclude or contain newts in mitigation projects. It can also be used to aid the capture of newts for relocation and is typically a short barrier with the base buried underground. Our Tristar Newt Fencing comes in rolls of 100m, is made of UV stabilised polythene sheeting and tinted green. It is designed to resist weather damage and has a life expectancy of 5 years, making it ideal for temporary mitigation projects during development works. It is easy and simple to put up and can be fixed into place with our soft wood stakes.
Pitfall Traps
Often, pitfall traps are used alongside drift fencing in order to trap and translocate newts in relocation projects. They consist of a container that is buried underground often flush with the edge of drift fencing. Both rectangular buckets and round buckets have been shown to be effective and we supply several options depending on your preferences.
The Little Owl, Athene noctua, is one of the most well-studied species of owl. Despite being widespread across Europe, Asia and North Africa, populations are now in decline, making studies of its behaviour and ecology all the more important. The revised second edition of The Little Owl, which vastly expands on the original, published in 2011, covers everything you could wish to know about the species. From its history, taxonomy and genetics, to details of its habits, diet and breeding, the wide-ranging text consolidates all of the current available knowledge, obtained both from the author’s personal experience and research, as well as scientific and conservation literature.
The authors, Dries van Nieuwenhuyse, Ronald van Harxen and David H Johnson generously gave up some of their time to answer our questions about the book, the issues currently affecting Little Owls globally, and their hopes for the future of this captivating species. The Q&A is also illustrated with some of the beautiful images from the book, all of which were created by scientific illustrator and graphic designer Joris De Raedt.
Firstly, can you tell us a little bit about yourselves and the work you are currently involved in?
Dries is a life-long owl researcher and statistician active in ecological method development and publication. He has authored five books on the impact of technology and statistics on the decision-making processes of organisations, and in particular brings his skills as a statistician to his ornithological work.
Ronald is Chairman of the Dutch Little Owl Working Group (STONE), and has been active in research on breeding biology and population dynamics within nest box populations and conservation of the Little Owl in the Netherlands and internationally for more than four decades.
David is Executive Director at Global Owl Project, USA and working since more than a decade on a demographic study of the Burrowing Owl (Athene cunicularia). He has worked in natural resource conservation for four decades and has written two previous books on owls, wildlife and fisheries.
Joris De Raedt is scientific illustrator and graphic designer
visualising the wonders of the natural world. He illustrated the book through a combination of graphite sketches and digital illustrations. Color and details are added on the computer using a graphic tablet. More on his workflow at jorisderaedt.com.
For anyone that enjoyed reading the first version of The Little Owl which was published in 2011, what new things can they expect to discover in this updated second edition?
The subtitle of the first edition was Conservation, Ecology and Behavior, the second edition paid special attention to Taxonomy, Population Dynamics and Management. Major improvements are the illustrations that were all created by Joris De Raedt. This allowed us to make compilations of photos of the subspecies and their habitats to obtain extremely detailed and standardised artistic plates. The fact that this edition is in colour allowed excellent drawings of the embryonic development, the evolution of nestlings in function of age and high quality distribution maps by country and globally. The global distribution map was revised with much more accurate data than even before, thanks to the internet and technological advances.
Plenty of new insights were brought in by Ronald on breeding biology, prey items and behaviour in nestboxes that were equipped with webcams. Photos led to video, and that led to online webcam data that was tagged with time, prey species and specific behavior by volunteers.
The final major evolution was the intensification of replicated experiments since the first edition. Crucial questions on the yellowness of the beak of the female in relation to breeding performance and feeding preference of female nestlings by females, and also in relation to the yellowness of the beaks of the offspring, led to major breakthroughs in our knowledge. Due to the publication of the first edition, the start of a pdf and citizen science website for data collection improved the international cooperation tremendously and facilitated access to international data bases of ringing data, geocoded pictures and vocalisations.
Historically the Little Owl has suffered due to intensive agriculture practices and abundant use of pesticides. Are Little Owls still widely affected by these issues, and do we yet have a clear idea of how they are likely to be impacted with the additional challenges posed by the climate crisis?
Little Owls are ambassadors of small-scale landscapes. In some countries they disappear due to intensification of the agriculture, while in other countries they disappear when farming is halted (grazing cattle disappear) and after forestation. Climate change is expected to have a positive impact on the species in the north and the east due to less snow cover. Increasing heavy rain during the breeding season, on the other hand, will probably have a negative impact on breeding success. Increase in desertification might not be an issue, as this typical Mediterranean species can even be found in the Sahara and the Arabian Peninsula. In Europe, most negative impacts comes from agricultural intensification, with an increase in maize leading to less grassland, increase in pesticides and rodenticides, increase in scale of the landscape with fewer parcel borders, fences or shrubs.
An important part of the book deals with management techniques that have proven to work over the long term. Reintroducing short grassy vegetation with commanding perches and provision of nestboxes can significantly help Little Owls to cope with modern agriculture. If conservation is started timely enough, this simple management can help preserve healthy populations. When densities drop too low, this might not be sufficient and, in combination with a lack of food, can lead to local extinctions.
What are the key ways in which Little Owls are surveyed? And how comprehensive is our knowledge of where they occur and their current population sizes?
The species is excellent for research due to its easy response to playback of vocalisations, historically mostly undertaken in western Europe but recently increasing in eastern Europe. Monitoring efforts have continued since the 1980s and offer a good view on population numbers. This has led to extra research on the possible impact of habitat deterioration, food availability and the increase of Stone Marten and Tawny Owls as possible limiting factors.
Since the first edition plenty of new local and large scale atlases have been published leading to a very detailed knowledge on the distribution and population numbers in Europe. The new EBCC atlas has distribution data at the 50 by 50km level, the 27 EU member states monitor Little Owl presence at the 10 by 10km level, and a number of local atlases have data available at the 1 by 1 km level.
Outside of Europe, the species is rather common but distribution knowledge remains anecdotal with population estimates largely based on local average densities and, in rare cases, on habitat modelling. More insights emerged from North Africa and the East (eg Iran and Pakistan) but much more work is still needed outside Europe. Hopefully this book can boost research in less well-studied countries, as many methods that have proven to be working simply need to be replicated elsewhere.
How effective have captive breeding and reintroduction projects been for the Little Owl so far? And is this approach likely to be an important one for their future conservation?
Not very effective. Some initiatives have been undertaken but with moderate outcomes. Reintroduction remains an emergency brake that rarely works. Supplemental feeding, provision of nestboxes and landscape improvements are much more effective, particularly when they are started in a timely manner. The key is not to wait too long before starting with small-scale management and to keep healthy populations, even in areas with intensive agriculture.
How likely are Little Owls to utilise artificial nestboxes?
Very likely, and this makes The Little Owl one of the best and easiest models for biological and conservation research. The ease of installing nestboxes with webcams and with predator protection allows data to be collected in an unprecedented manner, without special tools or tedious field work. People can observe the species seated at their kitchen table, youngsters can easily be involved in playback monitoring, nestbox maintenance and food supplementation, which eventually leads to experiments and dedicated citizen science. This make the species so special.
Finally, what’s next for you? Are there new books on the horizon?
Sure, Ronald and Dries will publish a non-scientific version of the book in Dutch for the 2000+ local volunteers to thank them for their tremendous help in collecting and digitising Little Owl data through conservation, management and ringing. David and Dries are currently preparing a similar book on the close relative of the Little Owl, the Burrowing Owl. Finally, Ronald is currently working on a book on all owl species that can be found in The Netherlands. We’ve still got some work to do.
The Little Owl by Dries van Nieuwenhuyse, Ronald van Harxen and David H. Johnson was published by Cambridge University Press in October 2023 and is available from nhbs.com.
Increasing shortages of early season food threatens bumblebee populations.A new study published by the Universities of Oxford and Exeter has revealed that pollinator-friendly plant species are now flowering up to a month too lateto aid bee conservation, resulting in low colony survival rates and reduced queen production.The reduction in pollen and nectar availabilityduring the March to June period, which is critical during theearly stages of colony formation,can have catastrophic effects on colony populations, with research suggesting that a two week gap in pollen supplyreduces the production of daughter queen bees by up to 87%. To combat this decline,it is recommended that existing hedgerows should be populated with early blooming species such as Ground Ivy, cherry, and Hawthorn, which would increase colony success rates from 35% to 100%.
A pioneering translocation project aimed at saving a rare species of fungus in now underway in Cumbria. The Willow Glove fungus is a critically endangered species that can now only be found in two woodlands in Scotland, with the majority of it living on a single fallen tree. Scientists have recently removed sections of dead wood that the fungus is living on and relocated it to three receptor sites in an attempt to prevent the species’ impending extinction. The fungus is being transported to protected sites of special scientific interest where the fungus was last recorded before it became extinct in England 50 years ago. Host trees have been selected due to their plentiful supply of willow glue, a parasite that the Willow Glove depends on for survival. The success of this relocation technique will be monitored by volunteers from Cumbria Fungi Group for the next five years.
RHS Rosemoor aims to rediscover lost, native apple varieties to help the fruit survive climate breakdown. This spring, horticulturalists are searching for lost varieties of apple trees that used to be abundant in ancientorchards, with the goal of discovering the genetic traits of those species that are still thriving today. The University of Bristol and Sandford Orchards will each receive the genotypes of apple species that have beendeemed important from across England and plan to investigate the rare ‘survivor varieties’ that have not been propagated,collected or recorded before. The hope is that their genetic code can be preserved for future usein an attempt to safeguard biodiversity and boost the UK apple industry’s resilience to climate change, particularly for those species that are native to this country. This project will play a vital role in the sustainability of the UK’s commercial orchards, 80% of which have been lost since 1900.
A newly discovered orchid species boasts the longest nectar spur of any known plant relative to its flower size.The Solenangisimpraedicta, found in the forest canopies of central Madagascar, is the first orchid discovered since 1965 that has made extreme adaptations to allow only a certain speciesto access its nectar andfacilitate pollination. Its hyper-long nectar spur,measuring 33cm, makes it the longest of any known plant when compared to its small flower size of only 2cm, and researcherssuggest it may only be accessible to the Long-tongued Hawkmoth. The significance of this discovery has been noted due to the similarities between this species and Darwin’s Orchid (Angraecumsesquipedale), which is also native to Madagascar. Darwin speculated that only a moth with an exceptionally long proboscis could reach the nectar, while Alfred Russel Wallace further built on this in his predication that a hawkmoth would be the only species able to do so. Finding this rare orchid highlights the urgency of conservation measures in Madagascar that are necessary to combat the rapid rate of deforestation occurring on the island.
Hummingbird Hawkmoth by Peter Stenzel, via flickr.
An ancient species of river dolphin has been discovered in the Peruvian Amazon. A team of palaeontologists have found a giant fossilised skull on the shores of the Napo River that belonged to the largest-known species of river dolphin in history. This colossal creature,measuring 3-3.5 metres in length, is not related to the nativeAmazon River (Pink) Dolphins, but rather the South Asia river dolphins who are found 10,000km away. Researchers suggest that the dolphins’ ancestors originally lived in the ocean but ventured into the abundant freshwater ecosystems of the proto-Amazonia, before becoming extinct when new habitatsemerged and their prey vanished.
Environment
The earliest-ever sighting of the Asian Hornet suggests they may now be established in the UK. The Department for Environment, Food and Rural Affairs (DEFRA) has recently confirmed that an Asian Hornet was sighted and captured on the 11th March in Kent – one month earlier than the first hornet sighting of last year. Once hornets are established, it’s almost impossible to get rid of them, and with Asian Hornet numbers having skyrocketed in the UK in 2023, scientist are concerned that they are now overwintering in the UK. This may have detrimental effects on wild pollinators emerging from hibernation, particularly Britain’s bee populations which play a key role in agricultural pollination.
An Identification Guide to Trees of Britain and North-West Europe is a fantastic new guide to 89 of the most commonly found and easily recognised trees in the region. Suitable for everyone, from the complete novice to the experienced naturalist, the book contains lively and interesting text from Dominic Couzens, complemented by Gail Ashton’s photographs. These show details of each species throughout the seasons as well as features that are useful for identification.
Dominic Couzens is a bird expert, nature writer and the author of over 40 books. He is also a regular print columnist and writes for Bird Watching Magazine, Nature’s Home (RSPB) and Water Life (WWT). He is passionate about communicating about the natural world and has a particular passion for writing about current threats to the planet and how they can be best addressed.
Gail Ashton is a photographer and writer with a passion for wildlife and invertebrates in particular. Well known for an incredible project where she undertook to photograph 500 UK invertebrates over the course of a year, she is passionate about encouraging everyone, young or old, to observe and appreciate the natural world.
We recently got to the chance to ask Dominic and Gail some questions about the book; about the process of compiling such a guide, the most fascinating things they learned in the process and their concerns for the future of trees in Britain and further afield.
Firstly, can you tell us a little bit about yourselves and how you came to be working together in writing this book?
DC: I am an experienced writer of natural history books and I’ve written a number of field guides, both to birds and mammals. However, in 2021 I came across Gail’s remarkable project to photograph 500 species of invertebrates in a single year. Her fabulous library was the perfect material for an insect guide, so we published An Identification Guide to Garden Insects in 2022. The project was a great success so here we are.
GA: I have always loved nature and one of my favourite ways to be outdoors is in woodland and forest. Studying insects brought me a new layer of fascination for trees as I found out just how many other organisms they support, and just how complex they are. Trees came on the back of the very-well received ‘Garden Insects’, and follows the same, beautiful format and layout.
There are numerous books available on tree identification. What do you think sets your book apart from other ID guides of its kind?
GA: Yes, there are a good number of outstanding tree guides out there – some of which I use myself. But they can be quite expansive and overwhelming, especially for those of us just starting our tree identification journey. This book is a perfect entry-level guide which introduces you to the different ways in which you can look at trees in order to recognise key features.
DC: It’s very different. For a start, while most tree guides even just to Britain have 300 or more species, we have cut this down to about 90. So it’s simplified and entry-level, including all the common wild species and some introduced ones – those that people might see. It is very far from technical and we have tried to make every species interesting and fun in its own right. We have included some really great facts about many of the trees.
I’m always fascinated by the process behind the compilation of such a comprehensive ID guide. What was the most challenging part of writing this book?
DC: Trees are complicated, with all the different parts from leaves to bark. As the writer of most of the text, even though I had a decent grasp of many British trees, it was always a challenge not to forget all the details. The other very difficult task was in selecting the species. We wanted to include all the species people will notice, including such non-natives as Magnolias and Eucalyptus, while including the bona fide wild trees. But we couldn’t find room for all the tricky willows, and in the end we just hope our choice chimes with people.
GA: Believe it or not, the biggest challenge for me was actually finding the trees. It sounds mad, because trees are everywhere, right? But finding that perfect tree to photograph took a lot of research, walking and finding, and then the light had to be right, so I would revisit trees multiple times. Some of the trees were quite difficult to find, such as the Wild Service and Mulberry, so a lot of detective work was required to pinpoint them. I also had to make repeat visits to capture them in all their seasonal phases. There are trees from all over Europe in this book -thousands of miles and hundreds of hours! But those are the lengths I’ll go to get a great photo.
I particularly enjoyed the fascinating facts that you included for each species in the book. Did you learn anything new or particularly surprising about any of the tree species covered over the course of your research?
DC: I learnt an enormous amount. Did you know that each Holly leaf lives an average of seven years, for example? I also love the fact that Monkey Puzzles are essentially adapted to cope with browsing Sauropod dinosaurs.
GA: I became particularly fascinated with the Ginkgo – a unique throwback to the very beginnings of life on Earth; a tree which is neither conifer nor broadleaf, but somewhere in between.
A big part of conservation and land management is knowing what species are where and how many there are. How much do we currently know about the trees present in Britain and their population sizes?
GA: According to Forestry Research, only 13% of the United Kingdom is currently wooded. That’s such a small percentage compared to a few thousand years ago. Our ancient woodlands have all but disappeared, replaced by farmland, urban development and plantations. Veteran trees are our most important, as they support more communities and sequester more carbon than young trees. It’s essential that our remaining veteran trees and woodland fragments are fully protected to ensure the health of our future natural landscapes.
DC: The recent Atlas of British Flora means that we are well covered in these terms. For some of the rarer trees, such as Black Poplars, we know how many individuals there are of each sex.
Within this guide you include information on the months when leaves, flowers and buds might be seen for each species. Do you have any information or a feel for how rapidly climate change is impacting these features?
DC: Trees are a good early-warnings system, and you don’t need to write a book on trees to see that many are coming out earlier than they used to – hazel catkins in December, for example. However, it was very difficult to get any accurate figures for the book because it varies so much from year to year, and we were also covering Northern Europe as well as Britain. However, we certainly got a feel for the potential problems. Birch catkins are coming out earlier in response to warming, but might be approaching the earliest they can cope with physiologically. Oak budburst will affect both the caterpillars that feed on it and the Blue Tits that feed on the caterpillars. On a wider scale, temperature changes will affect the whole distribution of trees through the country, with northern species retreating. We could lose some specialists such as Dwarf Willow, and the climate will also become easier for introduced trees.
GA: I think that trees are more difficult to use as indicators than insects as trees have a much longer generational turnover, and they don’t move; however monitoring the emergence of blossom and leaves in spring and the falling of leaves in autumn is a great citizen science tool to establish changing trends.
Are there any trees in the UK for which the future seems particularly bleak?
DC: There are well known problems for ash trees and to a lesser extent oaks, and we simply don’t know how far their respective diseases will go. But as a warning, remember that the Field Elm, in its various forms, used to be lowland England’s most abundant tree. Paintings by our forebears of the countryside were often dominated by elms – now they are a shadow of their former selves. And as mentioned above, the warming climate will impact upon our more northerly species.
GA: Ash dieback is currently decimating younger adult trees, though there is a glimmer of hope in that veteran ash are currently immune to the fungus. Juniper is in massive decline across the UK due to loss of suitable habitat.
Finally, what are you both working on now? Do you have plans for further books?
DC: We have co-written two books on insects recently: A Year of Garden Bees and Bugs and An Insect a Day, both of which are published by BT Batsford and are narrative-style books.
GA: I am currently working on upcoming books about invertebrates. I have an exhibition of my photos planned, as well as workshops, talks and podcasts.
An Identification Guide to Trees of Britain and North-West Europe was published by John Beaufoy Publishing in April 2024 and is available from nhbs.com.
Dominic Couzens is a bird expert, nature writer and the author of over 40 books. He is also a regular print columnist and writes for Bird Watching Magazine, Nature’s Home (RSPB) and Water Life (WWT). He is passionate about communicating about the natural world and has a particular passion for writing about current threats to the planet and how they can be best addressed.
Gail Ashton is a photographer and writer with a passion for wildlife and invertebrates in particular. Well known for an incredible project where she undertook to photograph 500 UK invertebrates over the course of a year, she is passionate about encouraging everyone, young or old, to observe and appreciate the natural world.