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.
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.
Many animal groups use sound to communicate, whether this be for mating and courtship, navigation or general intraspecific communication. These sounds can come in the form of croaks, songs and calls, and are produced by a wide range of animal groups including amphibians, birds, mammals and insects.
Acoustic recorders allow us to listen to these sounds, whether this be for surveying and monitoring, or just for enjoyment. This non-invasive monitoring method allows us to gather data from an environment without disturbing wildlife, and some recorders are designed to be extremely sensitive, enabling users to capture sound from great distances. From these recordings we can identify species, analyse distribution, abundance, ecological community composition and even behaviour and can use the data to inform landscape management.
Acoustic recorders are a valuable piece of kit for ecologists, naturalists or those eager to learn more about the animals in their garden, and we have a fantastic range of recorders to meet these needs. Here we have selected our top five acoustic recorders, highlighting key features of each device.
A popular, cost-effective option, the Song Meter Micro 2 is the smallest recorder in Wildlife Acoustic’s Song Meter range. The simple yet innovative design of this recorderallows for a lightweight and fully weatherproof device with an impressive 240-hour battery life. This recorderalso features a built-in microphone, ideal for the detection of frogs, birds and other vocal species.
This all-in-one recorder is designed to suit all acoustic surveying needs. The acoustic microphone is suitable for recording birds, frogs and mammals, and can alsobe equipped with a second ultrasonic microphone for the detection of bats. It is robust and waterproof (IP67 rating) and can record in mono acoustic, stereo acoustic, dual acoustic or ultrasonic for up to 300 hours.
A compact and lightweight option, this acoustic recorder provides excellent recording quality whilemaintaining affordability. Building on the design of the original Song Meter Mini, this recorder features an improved battery life and weatherproof case design. It is suitable for the detection of birds, frogs and other vocal species, and a second microphone can be added for stereo recordings.
With an easily accessible design, this recorder is straightforward and simple to use. A two second prerecord function and an auto record function ensure that a bird or bat call will never be missed, and the built-in omnidirectional microphones ensure high-quality and high resolution on this handheld recorder.
This economical package includes aTelinga MK3 microphone, handle and22” folding dish, ensuring high-quality, focused audio. It is the ideal choice for recording wildlife, even over long distances, and its foldable design makes it easy to transport in field.
The range of integrated or built-in boxes designed for bats can be overwhelming. For new developments, or renovation projects, you may be searching for bat boxes to incorporate additional habitats into your build, and support species while providing new infrastructure. With an upturn in low impact, wildlife friendly construction, integrated bat boxes are becoming increasingly relevant in the construction sector. Bat boxes are designed to provide an appropriately sized, predator-free space for bats to roost or hibernate. They are often designed to be built-in to the building itself, whether this be roofing or brickwork and are unobtrusive, often hard to spot, and help to provide various species with a permanent roost.
There are 18 bat species in the UK, all of which use the same areas of buildings to roost in the absence of natural habitats – most commonly cellars, roofs and loose brickwork, among many more. In general, bat boxes should be placed between 3-6 metres high, in a sunny location with around 6-8 hours of direct sunlight. It is also best to avoid placing these in areas around artificial light. For built-in products, woodcrete (or woodstone, woodconcrete) is preferred due to its durability, longevity and good insulative properties.
Here we discuss integrated bat boxes, providing an overview of our selection of bat boxes and their benefits.
Types of Integrated Bat Boxes
Bat Tiles, Bricks and Panels
Tiles, bricks and panels provide bats with an access point to a suitable roosting space, whether this be within the roof, ridge tiles or a cavity area behind bricks and panels. They are designed to be incorporated into the build itself during construction or renovation and should be provided with suitable roosting cavities behind the access point, usually in the form of bat boxes or insulation-free cavity space.
Provides bats with an entrance to underfelt or open loft
Protection from heat extremes
Available in five traditional tile colours
Integrated Bat Boxes
Bat boxes are designed to cater for either crevice and cavity dwelling species through varying complexity or can occasionally be a hybrid design to encourage uptake from both groups. These self-contained roosts are unobtrusive and are typically installed flush to the wall or can be rendered over. Bat boxes can also be designed for hibernation and breeding, providing a well-insulated, larger space to accommodate breeding colonies and larger groups.
Bat boxes typically consist of a solid box made from insulating materials with an internal roosting space. They can be custom faced with a chosen brick type (or existing brick, wood, stonework or rendered finish) to allow for discrete installation and a better blend into the existing facade.
Available in a variety of facings to suit any existing brick, wood, stonework or aa rendered finish
Insulative properties
External Bat Boxes
An alternative to integrated habitat boxes, externally mounted bat boxes can be attached to trees, fences, or buildings and are typically made of woodstone or woodcrete. These versatile boxes can be designed for summer roosting, hibernation, or maternity roosting, varying in size to accommodate different species.
If you have any questions about our range or would like some advice on the right product for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913.
Though bears loom large in our collective imagination, their flesh-and-blood counterparts are increasingly losing ground. Eight Bears, the debut of environmental journalist Gloria Dickie, draws on visits to key hotspots where Earth’s remaining bear species come into conflict with humans. By interviewing scores of people, both conservationists and those suffering at the paws of these large predators, this nuanced and thought-provoking reportage asks whether humans and bears can coexist.
The roots of this book go back to 2013 when Dickie started a master’s in environmental journalism and midway settled on bear-human conflicts in the Rocky Mountains. Since then, she has travelled to Asia and the Americas to see first-hand all eight extant bear species. The only obvious regions missing from her story are Alaska, Russia, and Europe, all of which have large populations of bears. Even so, she has visited a formidable list of destinations. As an aside here, kudos to both the stylish bear portraits by Arjun Parikh opening each chapter, and Dickie’s meticulous list of notes. The latter mentions the many people she has interviewed or corresponded with over the years and, for some sources, provides additional notes that are too detailed for the main narrative.
The first half of the book’s subtitle promises a look at the bear’s mythic past. Though there is mention here of the predominance of bears in northern hemisphere cultures, the so-called circumpolar bear cult tradition, and the rarely discussed role of the bear in Peruvian culture and history, this is a minor motif in the book. Much more can be and has been said about the cultural history of bears.
Instead, as seems unavoidable when writing about megafauna nowadays, the focus of Eight Bears is on the second half of the subtitle, their imperilled future. The outlook is grim and Dickie early on mentions that “almost everywhere I went, bears seemed to be a shadow of what they once were” (p. 8). Probably the biggest threat is habitat loss, followed closely by hunting and poaching. A historic combination of these two decimated North American bear populations under European settlement. Polar bears have become the poster children of climate change, though the disappearance of sea ice is yet another form of habitat loss. I would be remiss if I did not mention that several whistleblowers have argued that hunting poses a continued but underappreciated threat to polar bears. Asia is additionally home to some particularly grisly practices: sloth bears are beaten into submission to become dancing bears, and moon and sun bears are experiencing years of, what is effectively, surgical torture on bile farms. The former has been outlawed with a reasonable degree of success, the latter less so. From her descriptions, Dickie visits the same bile farmer and speaks to some of the same people that Nuwer interviewed for her 2018 book Poached. Little seems to have improved in the intervening years, unfortunately.
Though bears are usually at the losing end of human-wildlife conflict, Dickie does not avoid exploring the flipside. Many readers outside of Asia might be surprised to learn that the inappropriately named sloth bear is easily the world’s most dangerous bear. In India, more than 100 attacks every year kill or gruesomely injure predominantly poor, rural people, with Dickie seeking out some of the victims. In the USA, where grizzly populations are recovering, she speaks to ranchers and farmers who lose livestock to bears and frequently object that “liberal urbanites are the ones who want predators back on the landscape, but they aren’t the ones suffering the consequences” (p. 177). In Canada, she visits the remarkable tourist town of Churchill at the edge of Hudson Bay which is home to equal numbers of humans and polar bears. To keep people safe while avoiding lethal control methods as much as possible, it relies on an unprecedented amount of technology. Even so, human lives are at risk, and Dickie speaks to a woman who survived a mauling.
The chapters focusing on bears in the USA offer some of the most remarkable case studies of people attempting to live alongside bears. The century-long history of black bear management around Yosemite National Park offers “a full-scale experiment of all the ways people and bears can clash” (p. 153). After decades of park management doing things wrong (making a tourist attraction out of bears scavenging on garbage dumps, thus inadvertently training a generation of them how not to forage in the wild), they spent decades trying to do things right. A combination of bear-resistant food storage containers on campgrounds and strict enforcement of rules has trained tourists to be more mindful.
Eight Bears becomes more thought-provoking as it progresses. Here is how it provoked mine. Dickie puts down several relevant dots on paper at different points in the book (mentioning human population growth, climate change, and the resource-hungry global supply chain) but she does not explicitly connect them to draw the contours of the larger challenge ahead. So, here be a tangent, and my attempt to connect those dots, triggered by her repeated interviewing of grizzly bear recovery coordinator Chris Servheen. Upon retirement in 2015, with grizzlies sufficiently recovered, he supported their delisting. However, by 2021, seeing how states were failing to manage grizzly populations “with maturity and grace” (p. 180), he changed his mind. This raises fundamental questions. What is the point of all our conservation efforts if we do not address the root causes that got threatened species in trouble in the first place? For me, books such as Abundant Earth and Alfie & Me have really driven home the point that, unless we change our relationship with the natural world and stop treating it as a bottomless larder, conservation is little more than a palliative solution, a stay of execution. If we restore animals to an increasingly degraded environment, to a human population that does not want to share the world with them, they will have to remain on permanent life support. To be clear, I do not think conservation is futile; it is vital. So long as it is not an end unto itself. We cannot lose sight of the bigger picture: a world hospitable to non-human animals. Servheen’s call for “maturity and grace” in the context of grizzly bear management can just as well be applied to our tenancy of this planet.
Even if you were to come away from this book without having your thoughts similarly provoked, Eight Bears is a mighty fine environmental reportage that is nuanced and well-researched. Given the often regional nature of books on bears and people, Dickie’s globetrotting overview of the challenges faced by all extant bears is very welcome.
This blog focusses on forgotten species; those that are extinct, endangered or just urban, small and under-recorded. With climate change, habitat loss and invasive species threatening our native mammals, highlighting their importance is vital in driving their conservation, so we have chosen to spotlight three of the UK’s endangeredmammals, discussing their biology and characteristics, current conservation initiatives and what the future might look like for these animals.
Eurasian Beaver (Castor fiber)
Habitat: Freshwater, particularly streams and rivers near woodland.
Diet: Aquatic plants and grasses during warmer months, tree bark and shoots during winter. Preference for willow, Aspen, Alder and fruit trees.
Conservation Status: Critically endangered in England, endangered in Scotland.
Distribution: Free-range populations in the River Tay, River Otter and Knapdale, Scotland. Enclosed populations in Kent, Essex and the Forest of Dean. As of 2023, Scottish beavers have established 424 territories, housing up to 1,500 individuals.
Breeding: Between December and April. Birth in early summer of up to six kits, sexually mature at two years old.
Description: With distinctive orange, chisel-like teeth and a flat, scaled tail, beavers are instantly recognisable. Similar in size to a medium dog with shorter legs and a rounder body, the fur of a beaver ranges from brown to black. Once widespread in the UK, the Eurasian Beaver was historically persecuted for medicinal and cosmetic purposes. The species was hunted for fur, meat and the oil from its scent glands, resulting in extinction by the 1600’s.
Did you know? High iron content in the enamel of their teeth gives them their distinctive orange colour. This addition provides the teeth the extra strength that is required for felling trees and eating.
Conservation of Eurasian Beavers
Beavers are talented ‘engineers’, able to transform wetland and freshwater environments. Through the alteration and modification of these habitats, beavers can create complex wetlands, ponds and nurture more resilient ecosystems.Their dams provide a natural filtration system for freshwater landscapes and water quality is shown to increase as it passes through dam complexes, helping to reduce diffuse pollution in the area. Through improved water storage, beaver activities can also maintain water flow to drought-ridden landscapes, increasing the habitat’s resilience to climate change related conditions.
Environments altered by beaver presence host significantly higher diversity compared to those without. Tree felling can shed more light onto aquatic areas, encouraging growth of wetland vegetation. Feeding on larger, fleshy plants can favour smaller, slow-growing species in the surrounding habitat, leading to more abundant, diverse plant communities in the long-term. Species richness and overall abundance of small mammals, amphibians and bird species are also found to be higher in areas close to beaver dams.
After 400–500 years of local extinction, beaver reintroduction has been gathering traction in the UK. There are a number of reintroduction projects trialling their release, including the 2009 Scottish Beaver Trial in Knapdale Forest (which introduced around a dozen beavers to over four hectares of land) and the Devon Beaver Project which introduced one family group to an enclosed area in West Devon. England’s first wild project, The River Otter Beaver Trial, was founded due to the discovery of wild beavers in the region. This 5-year project observedeight family units over 28,700ha and is seeking to demonstrate the effect of beavers on other wildlife, local landscapes, water flow, water quality and local communities. Further reintroductions across the country have established both wild and enclosed populations of this keystone species.
Looking Forward
Reintroduction projects across the UK have been successful. Populations are breeding successfully and have been expanding their territories. However, there is cause for concern with the potential of conflicts to arise over land management. It is likely that, with expansion, there will be human-wildlife conflict with landowners and other stakeholders in the future. The impact of beaver activities on the environment can cause flooding of pasture, risk to crops and the felling of trees can cause harm to livestock and structures. Natural England has advised a paced approach to beaver reintroduction, minimising impacts to land use, infrastructure, livelihoods or environmental features while maximising benefits for the environment.
Water Vole (Arvicola amphibius)
Habitat: Grassy banks along slow-moving rivers, canals and streams. Marshes, reedbeds, wet moorland, wetland.
Diet: Grass and waterside vegetation. Wetland plants in spring and summer. Roots, rhizomes, bulbs and bark in autumn and winter. Occasional invertebrates.
Conservation Status: Endangered in England and critically endangered in Wales.
Distribution: Found throughout mainland UK. Absent from Northern Ireland and most offshore islands. Estimated population of 132,000, range and numbers have declined by 94% from historical populations.
Breeding: March–October. Breed in spring, producing up to four litters a year.
Description: A small rat-sized rodent, the Water Vole has chestnut brown hair covering their entire body and tail, with a round nose and nearly hidden ears. This semi-aquatic rodent was historically widespread until the population saw a decline, resulting in nearly 90% reductions by 1998.
Habitat loss, degradation and fragmentation are key drivers of Water Vole declines in the UK. General infrastructure development, along with urbanisation of flood plains, have resulted in extensive loss of habitat for this species. Partnered with loss of vegetation and trampling around freshwater banks from grazing livestock, large areas of freshwater habitat are now unsuitable for voles. The unintended introduction of American Mink (Neovison vison) has also been pivotal in the collapse of Water Vole populations across the UK. Initially brought to England for fur farming, escaped mink have predated heavily on this species.
Conservation of Water Voles
Through grazing activities on grasses and rushes at the water’s edge, Water Voles manipulate their habitats, much like beavers but on a smaller scale. This manipulation can make space for a new community of wildflowers and grasses, attracting a host of invertebrate species to an area. As a valuable prey species, elevating Water Vole populations can support predators in the surrounding environment. Barn Owls (Tyto alba), Otters (Lutra lutra) and Pine Martens (Martes martes) are examples of native predators that would benefit from the repopulation of Water Voles.
A number of regional wildlife trusts have undertaken Water Vole recovery projects to support their repopulation in UK waterways. These typically involve recording and monitoring existing Water Vole activity, habitat enhancement, coordination of mink control, and in some cases, reintroduction of the species: 300 voles in the Yorkshire dales, over 600 in Essex, 200 in Gwent and over 1,000 individuals in Kielder Forest. The Forestry Commission has also pledged to make changes in Kielder Forest; improving the landscape by refraining from planting trees on river edges, providing much-needed habitat. In order to protect Water Vole settlement, the species is protected under the Wildlife and Countryside Act (1981), the UK Biodiversity Framework, and is listed as a priority species on the UK Biodiversity Action Plan.
Looking Forward
Reintroduction efforts across the UK have had mixed results. A period of growth was observed following initial releases in Nottinghamshire, which has now slowed. Overall occupancy from 2006–2018 has declined by 23%. It is thought that the continued pressure of habitat loss and mink predation is preventing populations from settling successfully. Responding to the poor establishment of Water Vole populations, recovery projects are enhancing existing freshwater habitat and building new areas to establish populations. Breeding and release sites will also be created to facilitate the successful reproduction of Water Voles in a safe environment, away from predation. In addition to habitat enhancement, more widespread mink control is also expected.
Pine Marten (Martes martes)
Habitat: Native woodland, conifer plantations.
Diet: Small mammals, carrion, birds, eggs, fruit and invertebrates.
Conservation Status: Critically endangered in England and Wales, least concern in Scotland.
Distribution: Widespread and relatively common in Ireland. Populations recovering in the Scottish Highlands, some isolated populations in southern Scotland. Populations in northern England and Wales are fragmented and small. Populations estimated at 1,600–8,900 in Britain and Ireland.
Breeding: Mating season is during the summer months. One litter per year, born in March or April. Kits are fully grown at six months and sexually mature by three years old.
Description: Often confused with mink, Weasels or Stoats, the Pine Marten is a fellow member of the Mustelid family. Characterised by its chocolate brown fur and a distinctive, uniquely shaped light-yellow bib around the throat and chest, this elusive species has a long, bushy tail and large, rounded ears. Around the size of a domestic cat, Pine Marten are larger than both Weasels and Stoats and can be distinguished from mink by their chocolate coat.
Pine Marten populations underwent a major decline in the 19th century due to persecution by Victorian gamekeepers on sporting estates. Extensive habitat loss and fragmentation is another factor which contributed to the decline of these species in the UK.
Conservation of Pine Martens
The reintroduction of Pine Martens is favoured by many across the UK. The species is valued for their natural control of the invasive, non-native Grey Squirrel (Sciurus carolinensis), which can account for up to 14% of a Pine Martens diet. This predation allows the native, endangered Red Squirrel (Sciurus vulgaris) to take hold. Eradicating competition from Grey Squirrels, and reducing the risk of the squirrel pox virus, has allowed the Red Squirrel to successfully repopulate areas around Pine Marten territory.
The Two Moors Pine Marten Project, the South East Pine Marten Restoration Project,Back From the Brink and Martens on the Move are programmes founded to support the expansion of Pine Martens in England. A total of 35 individuals have been relocated from Scotland to the Forest of Dean and the Wye Valley, and further reintroductions are expected to take place on Exmoor and Dartmoor National Parks later this year. Other projects aim to facilitate reintroductions through the enhancement of key habitats (Martens on the Move) or to undertake surveys and monitoring to inform on species distribution (Back from the Brink).
By 2017, around 50 Pine Martens had been relocated to woodland in mid-Wales from their original home in Scotland. The population was radio tracked throughout the first year, which monitored their movement and behaviour. The group have established a viable population, breeding every year since reintroduction.
Looking Forward
The future of Pine Martens in the UK is promising. Monitoring of existing projects shows successful breeding and expansion from Scotland into Northern England. It is expected that more Pine Martens will be released in the Forest of Dean, in addition to an estimated 40 individuals to be released with the Two Moors Restoration Project in autumn 2024. It is hoped that, with further expansion, populations may link with Welsh Pine Martens, boosting connectivity and genetic diversity.
However, as populations continue to expand, there is an increasing risk of conflict. With greater human populations, greater infrastructure, and greater exposure to protected species, concerns may arise among the public. The species are known to find their way into chicken coops and pheasant pens, damaging livestock and causing conflict with local farmers. The Vincent Wildlife Trust, Natural England and NatureScot recommend sufficient Pine Marten monitoring, active engagement and open communication with stakeholders to mitigate potential conflicts before they arise.
Ever since wolves were reintroduced into Yellowstone National Park in 1995 they have been intently observed by biologists and wolf enthusiasts. Amongst these, biological technician and park ranger Rick McIntyre has to be the most dedicated, having watched these wolves from dawn to dusk every day for around two decades now. The Redemption of Wolf 302 is the third book in the Alpha Wolves of Yellowstone series and tells the story of an unlikely hero.
Though this book can be read by itself, you will get more enjoyment out of the unfolding multi-generational story arc if you read the previous two instalments. Furthermore, McIntyre refers to earlier wolves quite frequently and this book picks up right where The Reign of Wolf 21 ended, meaning the earliest part of wolf 302’s life is not told here. However, a brief introduction brings you up to speed.
One thing this book makes clear is that wolves have individual characters. Whereas wolves 8 and 21 were devoted males looking out for their pack, the current protagonist is anything but. With the death of 21 in 2004, the second-ranking male 253 temporarily takes over but is quickly ousted by two neighbours from the Leopold Pack: 302 and his younger nephew 480. 302, however, is not a natural leader. An increasingly baffled McIntyre spends the first half of the book describing many instances of his unusual behaviour: he runs away during confrontations with other packs, quickly becomes subordinate to his much younger nephew 480, sneakily tries to mate with females when 480 is distracted, occasionally steals food from pups, and is easily spooked by prey carcasses moving when his packmates tear pieces of meat off them. When 302 snoozes on a nearby hill while the Druids battle a rival pack, ignoring their howls, McIntyre seems truly exasperated: “I had been rooting for 302 to do better in life for over four years, but his total noninvolvement as 480 rushed to confront these wolves made me think 302 was a lost cause” (p. 118).
As a consequence, the first part actually revolves around male 480 who steps up as the new Druid alpha male. Through the years 2005 and 2006 McIntyre witnesses the waxing and waning of power between the packs. Several Druid wolves are killed by the neighbouring Slough Creek pack in 2005 and the Sloughs expand their territory aggressively. The tide turns from 2006 onwards, though, when an unknown pack moves in from the north and subjects the Slough’s breeding den to a brutal siege and later kills its adult males. Subsequent accidents and poor breeding seasons for the Sloughs allow the Druids to regain much of their territory by 2008.
It takes until 2007 for wolf 302 to redeem himself, by which time he is over 6.5 years old, well beyond the average lifespan of wolves in Yellowstone. He finally starts helping the Druid females and pups, and assists male 480 during hunts and fights with other packs. By 2008 he leaves the Druids with a group of yearlings in tow and, together with a female from the Agate Creek pack, forms the newly-named Blacktail pack. In one example of stories coming full circle in this book, 302 takes up residence in the territory of the now-extinct Leopold pack, the same territory he was born in. Without giving away further spoilers, several other storylines come full circle at the end of 302’s life. Although not tugging on the heartstrings quite as much as the story of wolves 21 and 42, I was nevertheless so invested emotionally in the fully-lived lives of these wolves that by the end of the book I struggled to hold back tears. 302 ultimately transitions from a rebel to an alpha wolf deserving of that status.
If you read the previous books then you know what to expect: no embellished writing but a detailed rendition of McIntyre’s field notes that recounts the day-to-day lives of these wolves. This book retains the same structure as The Reign of Wolf 21: short chapters bundled into parts, one part for each year. McIntyre has reverted to putting just one map with home ranges at the start of the book, together with diagrams of the changing pack compositions over the years. The Reign of Wolf 21 put maps and diagrams at the start of each part, which was a useful convention that helped keep track of all the players. It looks as if McIntyre decided that was not necessary for this book as it follows fewer packs.
Like previous volumes, this book overflows with interesting biological observations on e.g. play behaviour of pups and interactions with other species such as bears and ravens. A notable problem is the outbreak of mange, a mite-caused disease that leads to fur loss. Research using infrared cameras has shown the substantial loss of body heat this causes, and the resulting deterioration of health in the subzero temperatures of Yellowstone winters. McIntyre furthermore uses one chapter to shortly summarize observations on wolf injuries and mortalities that he mentioned in this and the previous two books. His observations mirror those of Wolves on the Hunt which showed wolves regularly suffer serious injuries while hunting prey, from broken ribs to fractured jaws. Sometimes these are fatal, though more wolves die as a result of fights with other wolves.
As before, McIntyre rarely inserts himself in the narrative. He mentions notable visitors to the park and personal achievements such as his nine-year streak of daily observations, even when temperatures drop to lows of -44°C. There are two other striking examples of McIntyre’s detachment in this book. One is an incident where he leaves an injured wolf after several hours of observation and finds him dead the next day. McIntyre sticks to an iron rule that he is here to observe, not to interfere, and that means all facets of life and death in the natural world. The second incident is the start of the wolf-hunting season in Montana when wolves are removed from the endangered species list in 2009. The wolves in Yellowstone National Park are still protected, but those venturing outside are at risk. Despite expressing his concern for their safety, he refrains from giving his personal opinion on the hunting of wolves.
This series was originally going to be a trilogy, but by the end, McIntyre foreshadows the subject of the fourth book: the alpha females, particularly female 06. Named after her year of birth, 2006, she was a granddaughter of male 21 and was legendary for her fierce independence. Though she has been the subject of Blakeslee’s book American Wolf, McIntyre is uniquely placed to give an account of her life. For now, wolf aficionados can delight in The Redemption of Wolf 302. With each book, the payoff of following their story in this level of intimate detail is getting bigger – these books are in a class of their own.
The Redemption of Wolf 302 is available from our bookstore.
Bats use echolocation, a series of high-pitched calls, to socialise, navigate their habitat and hunt for their prey. Most of these vocalisations are above the range of human hearing, so we require a bat detector to hear them. These devices allow us to monitor bat species by listening to their calls, observe their behaviours and feeding,and toidentify species in a given area. Here we look at a selection of our bat detectors, highlighting the key points to consider when expanding your kit.
A popular, cost-effective option. This lightweight, full-spectrum recorder can be attached to your mobile device to listen to, view and record sounds while identifying the species encountered on the free app. For device compatibility, see the Wildlife Acoustics page.
This entry-level detector has a very simple design catering to complete beginners. It allows users to listen in real time, with extended low frequency coverage which can also pick up insects and birds.
An auto-scanning, heterodyne bat detector, the Elekon Batscanner allows for simple listening in real time. This detector features excellent audio performance with a digitally driven heterodyne converter.
A cost-effective, frequency division detector, the Batbox Baton is simple and easy to use thanks to its auto-scanning, one-button operation. This detector also comes with BatScan software to analyse your recordings.
Designed for transect surveys, this full-spectrum detector features a built-in GPS and a simple press-and-go design suitable for any level of experience. The Scout ensures excellent quality audio and recording, which can be analysed using the free Anabat Insight software.
Recording format: Full spectrum
Frequency range: 10–160 kHz
Sampling rate: 320 ksps, 16 bit
Up to 10 hours of battery life
For more information on how to choose the right product, see our Buyers Guides.
**** A long overdue recognition of the female wolf
The wolves reintroduced to Yellowstone National Park in 1995 are some of the best-studied mammals on the planet. Biological technician and park ranger Rick McIntyre has spent over two decades scrutinising their daily lives, venturing into the park every single day. Where his previous books focused on three notable alpha males, it is ultimately the females that call the shots and make the decisions with lasting consequences. This book is a long overdue recognition of the female wolf and continues this multigenerational saga.
If wolf 21, the subject of the second book, was the most famous male wolf in Yellowstone, then his granddaughter 06 (named after her year of birth, 2006) can safely be called the most famous female wolf. This fourth book picks up where the third book ended, covering the period 2009–2015. It tells 06’s life story, her untimely death, and the fate of one of her daughters. To refreshen your mind, some prefatory sections give a brief list of notable matriarchs through the years and a short history of the Druid Peak pack, which were the ancestors of 06.
The fact that wolves have unique characters is again confirmed here: 06 is a gorgeous wolf that has many suitors but, until age four, she rejects them all and is a rare example of a lone female wolf. Lone wolves, quite rare to begin with, are usually males in search of a new pack with unrelated females. In 2010 she forms the Lamar Canyon pack with two brothers younger than her: 754 and 755. Three successful years follow in which she has a litter of pups every year. Through a combination of fearlessness and wise choices, all pups survive their first year. A particular challenge is the nearby Mollie’s pack, led by an aggressive female, that starts making incursions into 06’s territory. There is a long-running feud between the Mollie’s and the very successful Druid Peak pack and its descendants, which can be traced back to 1996 when Druids killed several wolves of Mollie’s pack.
This book has the task of both continuing the story but also looking back. Several chapters end with boxes that briefly tell the story of other notable female wolves past and present. If you have read all or some of the previous trilogy, you know that the writing might not win prizes for its style. Instead, McIntyre distils thousands of days spent in the field and as many pages of notes into a deeply informed, unembellished eyewitness account of the daily lives of these wolves. He always clearly indicates where he reconstructs likely events not observed first-hand or imagines the inner lives of the wolves. As before, The Alpha Female Wolf is divided into parts that each cover a year, usually subdivided into several chapters. This time there are unfortunately no family trees included, which I would have found helpful, though the cast of characters remains manageable.
My impression is that this book contains more references to scientific research than the previous ones. There are observations on chronic wasting disease, contagious to elk, and how wolves are likely limiting its spread by selectively killing sick elk. McIntyre asks a wolf geneticist just how different the introduced wolves from Canada are from the original wolves that lived in this area, and gives some deeper insights into the genetic history of US wolf populations. And he speaks to two researchers studying wolf howling and how each individual produces unique harmonic overtones by which the wolves might recognize each other, to which McIntyre contributes some informal observations later in the book. There are also numerous interesting behavioural and natural history observations. Food features in particular, with chance observations of wolves feeding on eggs of ground-nesting birds, fruit from a rosebush, and the occasional beaver. McIntyre observes hunting sequences that show the wolves using the local terrain to their advantage.
McIntyre is on form in the first two-thirds of the book, detailing how 06’s fierceness and intelligence help her not only to survive but to thrive. She carefully chooses her partners to form a strong, cooperative team, while her choice of denning site under a natural rockfall provides superior protection from a raid by the Mollie’s pack. At various points in the book, McIntyre highlights how the actions and choices of 06 and others show the important role of alpha females in shaping pack life and pack dynamics in the park. Inspired by the many military veterans that visit Yellowstone, he draws a human parallel, describing the alpha female as a commanding officer while the alpha male is an executive officer carrying out her agenda.
How cruel, then, is the sudden death of first 754 and then 06 when they venture just outside park boundaries and are shot, legally, by hunters. I have to admit that I found this twist of fate really upsetting to read. Both McIntyre and the book never really recover from the blow. While the first three years (2010–2012) take up two-thirds of the book, the next three years (2013–2015) are covered in the remaining one-third. McIntyre commits himself to documenting the fall-out of these killings, which sees 755 go through several failed attempts at establishing a new family, and follows the fate of one of 06’s daughters, 926. Although there are happy endings of a sort, the lives of both these survivors are shot through with hardship and loss. Where the threat of hunting was only theoretical in the previous book, here it becomes reality with the removal of wolves from the endangered species list. Remarkably, even though the events have an emotional impact on both him and other wolf biologists and spotters, McIntyre continues to refrain from voicing his opinion or discussing in any depth the reasons for, and problems with, the hunting of wolves. He hints at the why of this when talking to a group of schoolchildren: “being a National Park Service employee in uniform, I could not voice a political opinion about wolf-hunting regulations outside the park” (p. 233). There is much here that remains unsaid, and Nate Blakeslee’s book The Wolf offers an outsider’s perspective on the whole situation that is well worth reading.
Ecologists know how important long-term research is, but also both how hard and rare it is. McIntyre’s decades-long commitment to observing the Yellowstone wolves, and then turning these into books for the general public, is commendable. The Alpha Female Wolf succeeds in both celebrating 06’s remarkably successful life and in indicating the important role of the female of this species. In a conversation with McIntyre last year, he mentioned one more book is planned that will cover events up to 2021. There are yet more stories to be told about these iconic animals and I am looking forward to immersing myself one more time in their lives.
Recently, Wildlife Acoustics and Bat Conservation International partnered together to host a webinarhighlighting the use of bioacoustics in bat conservation across the globe. The webinar featured three case studies tackling the impacts of white-nose syndrome, habitat loss and climate change with the help of bioacoustic technology. Here, we provide a summary of these case studies and the applications of acoustic monitoring in these investigations.
Florida USA, Dr. Melquisedec Gamba-Rios
Endemic to the region, the Florida Bonneted Bat (Eumops floridanus) is increasingly threatened by habitat loss from sea level rise and destructive development. This species has one of the smallest ranges in Southern Florida and utilises old tree cavities and large, open spaces for roosting and feeding. Dr. Gamba-Rios and his team sought to identify critical habitat for this endangered species using bioacoustics, hoping to support their fragile populations.
The team used acoustic recorders to identify key roosting and feeding areas for the species. Interestingly, they found that Miami’s zoo, golf courses and tropical parks had high numbers of Florida Bonneted Bat calls. The research showed that the large, open areas surrounded by forest and absence of artificial light of these locations provided an ideal foraging space for the species.
Since these bats require older, cavitied trees, the habitat of the group is at risk as development increases. Plans for water park construction were proposed on a key site for this species, however the evidence gathered here was used to challenge the proposal, resulting in its rejection to protect key bat habitat.In March 2024, over 1.1 million acres of critical habitat were designated for the species in Florida, including foraging areas in urban habitat and over 4,000 acres of Miami Pine Rocklands. Federally protected species are known to be twice as likely to move toward recovery than those without protection, so the designation of these spaces is incredibly important in securing the future of this species.
Nyungwe National Park, Dr. Jon Flanders
Last seen in 1981, the Hill’s Horseshoe Bat (Rhinolophus hilli) was considered a ‘lost’ species in Rwanda. In January 2019, a group of scientists and researchers, including Dr. Jon Flanders, set out on a 10-day expedition in Nyungwe National Park, looking to rediscover this elusive animal.
Nyungwe National Park rangers played a key role in the early stages of this project, identifying caves and key habitat for bats in the area. The rangers conducted acoustic monitoring using SM4 Acoustics to identify foraging and roosting areas, collecting over 260,000 files of acoustic data.Eight of these recordings successfully detected the calls of the Hill’s Horseshoe Bat, found in small, defined ranges. During the 10-day trip, the team worked relentlessly to catch, measure and collect DNA samples from bats using mist nets and harp traps in these locations. The team successfully captured two Hill’s Horseshoe Bats and confirmed the capture of this critically endangered species with museum archive specimens. The expedition highlighted the spectacular diversity of Nyungwe National Park which features a large number of rare and endemic species, and these findings reinforce the parks importance as a biodiversity hotspot.
White-nose Syndrome, Dr. Amanda Adams
White-nose syndrome is a cold-loving, infectious fungal disease found in bats. The fungus manifests in a total skin infection, most visible around the muzzle of the animal.This infection is responsible for significant mortality in several species, where the infection causes bats to wake often during hibernation – burning their fat stores, causing dehydration and starvation. Infected bats can expend up to twice the amount of energy as healthy individuals during hibernation, severely impacting their ability to survive the winter.Because of this, six million animals have succumbed to this infection so far, impacting 12 out of 44 species found in the USA.
Dr. Amanda Adams sought to use bioacoustics to enhance the management of foraging habitat to support these species through hibernation. The team used the Song meter mini to search for the presence of bats and observe their feeding behaviours. They found that feeding behaviours were observed up to three times more in prey patches, and this allowed researchers to designate feeding habitats for affected species. The survey will be used to inform vegetative management on passing corridors, aiming to increase the productivity of foraging areas to support the health of infected bats.
The ‘Going to Bat for Bioacoustics’webinarprovided an engaging insight into the applications of acoustic monitoring in bat research, showing how the technology can be used to support bat conservation. To learn more, the Wildlife Acoustics website has a range of training courses and webinars.Upcoming events can be found here.