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This Week in Biodiversity News – 19th December 2022

Conservation

The province of Limburg in the Netherlands will be restoring the habitat of the critically endangered garden dormouse over the next four years. In the Netherlands, this species (Eliomys quercinus) is only found in the southern Limburg area, although it is found across other parts of Europe, including France, Spain, Portugal, Italy and areas of south eastern Europe. The species relies on contiguous hedges and bushes, avoiding open fields, with a food preference for blackberries, common hazel, elderberries, gooseberries and red currants. Habitat loss and fragmentation are thought to have been the cause of the decline in both their abundance and range.

The garden dormouse (Eliomys quercinus) by Arno Laurent via Wikipedia Commons

Extinction risks

There have been a number of news stories relating to the mass die-offs of crustaceans off the North East and Yorkshire coasts, the first of which occurred in October 2021. Fishers and campaigners are protesting against further developments on the River Tee, where they believe dredging disturbed toxic chemicals and caused the mass deaths. Both the government and Tees Valley Combined Authority rejected this claim, with Defra suggesting naturally occurring algae was the most likely cause. Defra is organising an independent panel that will reinvestigate by January, and MPs are now calling for the inquiry to be open and collaborative, ensuring independence in the process.

Policy

Campaigners call for biodegradable plastic to be included in English single-use cutlery ban. The ban, expected to be announced in the coming weeks, comes after Scotland and Wales already legislated to ban various single-use plastics, including those described as biodegradable. Many ‘bioplastics’ are environmentally damaging and won’t break down in the natural environment, despite being termed biodegradable.

A report from the House of Lords has said that access to green space needs to be prioritised when deciding how to use land. The cross-party House of Lords land use in England commission has laid out its priorities for a land use framework. This would divide up the land in England and decide where is best for different types of agriculture, as well as carbon sequestration, nature restoration and recreation. The report, published on Tuesday last week, highlights the need for greater access to the natural world for the public, as it is ‘important for health and wellbeing, especially in urban and peri-urban locations near where people live’.

Research

New research has found the structures and binding environments of pigments bound to a protein responsible for photosynthesis at sea. Using cryogenic electron microscopy, the team studied a marine macroalga, Sea Staghorn (Codium fragile), which uses a protein termed a ‘photosynthetic antenna’ to efficiently utilise the blue-green light that reaches the ocean floor. The mechanism by which this is achieved has not yet been fully understood but this new research is contributing to a better understanding.

Sea Staghorn (Codium fragile) by Jerry Kirkhart via Flickr

A breakthrough in nuclear fusion energy has been announced by US scientists. Physicists have been pursuing the technology for decades as it promises a potential source of near-limitless clean energy. The fusion experiment, which took place at the National Ignition Facility in California produced more energy than was put in, but experts say there is still some way to go before fusion powers homes. Nuclear fusion works by taking pairs of light atoms and forcing them together, which releases a lot of energy. This process, while giving off small amounts of short-lived radioactive waste, produces no greenhouse gas emissions and therefore would not contribute to climate change.

Pollination loss removes healthy food from global diets. New research led by Harvard T.H. Chan School of Public Health has found that this increases chronic diseases causing excess deaths. Inadequate pollination, due to reduced biodiversity, has led to a 3-5% loss of fruit, vegetable and nut production, linked to an estimated 427,000 excess deaths annually from lost healthy food consumption and associated diseases, including heart disease, stroke, diabetes and certain cancers.

COP15

Eels are facing a population collapse after the annual fishing negotiations for key EU waters ended in quotas higher than those scientists have recommended. Conservation groups and scientists recently called for all EU eel fisheries to be closed to allow populations space to recover. However, the European Commission only agreed to extend the closure of eel fisheries at sea from the current three-month closure to six months. This will cover juvenile eel migrations and mature eels swimming between the sea and rivers. This decision came as the UN COP15 biodiversity summit, which ended on Monday 19th December, attempted to bring countries together to agree on targets to ensure the survival of species and stem the collapse of ecosystems across the world. A number of conservationists and scientists believe this decision is at odds with EU leaders’ proclaimed ambitions to protect biodiversity at COP15.

Countries have agreed to protect 30% of land and sea, decrease environmentally harmful subsidies and increase financing for nature restoration and protection. This goal is set to be achieved by the end of the decade, with initial responses from green groups being broadly positive. A new biodiversity fund will be formed, to sit within the UN’s existing Global Environment Facility, pooling together development aid, private sector money, philanthropic donations and funds raised through the use of digital sequence information of genetic resources. Additionally, rich countries have committed to increasing international aid for biodiversity to $20bn annually by 2025, then to $30bn by 2030.

The NHBS Guide to UK Rails

Rails, from the family Rallidae, are small- to medium-sized birds and include crakes, coots and gallinules. They can be found in most terrestrial habitats, but the most common are marshland and dense forests. They are present on every continent except Antarctica and are generally omnivores, consuming invertebrates, fruits and seedlings. Typically, they prefer dense vegetation near bodies of water, such as lakes, rivers or swamps.

This is a large family with around 130 species. We have several resident species in the UK, as well as a number of migrants and occasional visitors. Identification of rail species relies on plumage, leg and frontal shield colouration (if present), and their calls. Binoculars and scopes are useful for spotting these features from a distance. Juveniles and chicks will often differ in appearance from adults, therefore a guide covering these life stages is also helpful.

How are rails faring?

Due to hunting, egg collection and habitat loss, many rail species have become extinct and others are endangered. The corncrake and the spotted crake, for example, are classified as Red and Amber under the Birds of Conservation Concern 4. Due to their general flightlessness, they are often heavily impacted by introduced species such as domestic cats. American mink, a nonnative and invasive species in the UK, are a particular threat to moorhen as they can be a main prey item.

Corncrakes are the focus of several conservation projects due to their Europe-wide population declines. Research has shown that increasing the areas of suitable tall vegetation, particularly in spring, autumn and mid-winter, delaying mowing and using certain mowing methods can be effective conservation measures. Up to 60% of chicks are killed by standard mowing practices, due to their flightlessness and reluctance to escape to areas already cut. Since 1992, conservation measures have been implemented on a large scale and have resulted in a partial recovery, from 480 calling males in 1993 in the UK to 1,284 in 2014. However, since 2014, numbers are declining again in Scotland, down by 30% to 870 males in 2019.

Eurasian Coot (Fulica atra)

Distribution: Widespread in England and Wales, rarer in Scotland and Ireland. Numbers are boosted by migrants during winter.
BoCC4 status: Green
Wingspan: 70–80cm
What to look for: The coot is an all-black bird with a distinctive white bill and ‘shield’ on its forehead. They have yellow and white legs with large white feet that have lobed flaps of skin, which act similarly to webbed feet to aid their swimming.

Moorhen (Gallinula chloropus)

Distribution: Widespread in England, Wales, and Ireland, but less common in Scotland.
BoCC4 status: Amber
Wingspan: 50–55cm
What to look for: Moorhens have a similar appearance to the Eurasian coot, with a blackish plumage, which, when viewed close up, is actually dark brown on its back and wings with a bluer underside. However, they have a red and yellow bill, long green legs and white stripes on their flanks

Corncrake (Crex crex)

Distribution: Scarce summer breeding population, recorded in the Western Isles, coastal parts of northern Scotland, parts of Ireland and a few key areas in England.
BoCC4 status: Red
Wingspan: 46–53cm
What to look for: Corncrakes are small birds, slightly larger than a blackbird, with chestnut and dark brown wings and back, a mottled grey to buff underside and reddish-brown and white flanks. Its head is grey, with chestnut eyestripes and a chestnut and dark brown crown. Its legs and bill are pale pink.

Spotted Crake (Porzana porzana)

Distribution: Scarce, scattered pairs across Scotland and England.
BoCC4 status: Amber
Wingspan: 37–42cm
What to look for: The spotted crake is similar to the corncrake, with chestnut and dark brown wings and back and a greyer underside, but this species is speckled with white throughout and has a buff undertail. It has a similar grey head, chestnut and dark brown crown and chestnut eyestripe. Its legs are yellowish-green and its bill is a mix of orange, yellow and grey.

Water Rail (Rallus aquaticus)

Distribution: Widespread but thinly distributed throughout England, parts of Wales and Ireland. More scarce in Scotland and absent from upland areas.
BoCC4 status: Green
Wingspan: 38–45cm
What to look for: Their back and wings are chestnut and dark brown, with a grey underside and face. They have black-and-white barred flanks, a chestnut and dark brown crown, a long, red bill with a darker upper part and greyish-pink legs.

Sora (Porzana carolina)

Distribution: Occasional visitors, small number of records around England.
Global status: Least concern
Wingspan: 38cm
What to look for: The sora has a brown back marked with small black and white lines, a blue-grey underside and face, a short yellow bill with black markings at the base and yellow legs. Their flanks are barred with white and black.

Recommended books and equipment

The Corncrake: An Ecology of an Enigma

The detailed ecology of the corncrake, including many important facts about its lifestyle and behaviour, remains mysterious, even among ornithologists. This is the first full-length book to capture all the aspects of corncrake ecology and present this information to non-specialists.

Collins Bird Guide: The Most Complete Guide to the Birds of Britain and Europe

With expanded text and additional colour illustrations, the third edition of the hugely successful Collins Bird Guide is a must for every birdwatcher. The new edition has an extra 32 pages allowing several groups more space and completely or partly new plates with more detailed text.

Britain’s Birds: An Identification Guide to the Birds of Great Britain and Ireland

A bestselling guide since it was first published, Britain’s Birds has quickly established itself as the go-to photographic identification guide – the most comprehensive, up-to-date, practical and user-friendly book of its kind. Acclaimed by birdwatchers of all kinds, from the beginner to the most experienced, the guide has now been thoroughly revised and updated to make it even better than before.

Rite in the Rain Side Spiral Notebook (Small)

This is an environmentally responsible, all-weather paper which will survive anything from torrential rain to extreme heat and humidity. Perfect for making notes when birdwatching.

Kowa TSN-500 Series Compact Spotting Scope

Durable, lightweight and with excellent image quality, the TSN-500 series 20-40x spotting scopes are ideal for beginners or experienced birders looking for a portable alternative to heavier scopes.

Opticron Discovery WP PC Binoculars

These have an ultra-compact design to make them among the smallest waterproof roof prism binoculars available on the market today. Great for travelling and fantastic for children as young as seven.

Bird-Spot Laser Pointer

This is a pocket-sized green laser designed for use on birding trips. Its green beam will allow you to easily point out the location of a bird to fellow observers whilst remaining safe for both the birds and the user.

Please see nhbs.com for up to date pricing and availability.

Climate Challenges: COP27: A brief summary of key outcomes

The UN Climate Conference COP27 took place in Sharm el-Sheikh, Egypt, from 6th to 18th November. Bringing together over 45,000 people from around the world, the list of delegates included indigenous peoples, local communities, civil society and world leaders, with the aim of delivering solidarity between countries and following through on commitments made in the landmark Paris Agreement.

In this post we’ll take a brief look at some of the outcomes of the conference.

Breakthrough agreement on “Loss and Damage” fund

In negotiations that went up to and beyond the official closing date of the conference, an agreement was finally made to establish a “loss and damage” fund to help those nations most at risk due to the climate crisis. Although many of the details to do with the fund have yet to be ironed out, the money is expected to go to the most vulnerable countries to assist with problems arising from droughts, flooding and other situations caused by climate change.

Commitment to limiting global temperature rise

Although the final agreement of COP27 stated “the urgent need for deep, rapid and sustained reductions in global greenhouse gas emissions” and a renewed commitment to limit global warming to 1.5°C above pre-industrial levels as stated in the Paris Agreement, there were widespread concerns that there have been no concrete plans to cut fossil fuel emissions since COP26.

The global transformation to a low carbon economy has been estimated to require investments of USD 4–6 trillion per year. This amount would require a complete transformation of financial systems, and concerns were raised that developed countries are not yet showing signs of working together to achieve this.

World Leaders Summit

The World Leaders Summit took place over two days and involved 112 world leaders in six round table discussions. Under the general title “Together for Implementation”, these discussions were intended to break down the steps required to translate commitments into concrete and achievable action. Topics covered by these discussions included:

Just transition
Innovative finance
Investing in the future of energy
Food security
Water security
Climate change and the sustainability of vulnerable communities

The voice of youth at COP27

Children and young people were given much greater prominence at COP27, with governments being encouraged to listen to their thoughts and opinions, and incorporate their ideas in solutions and policies.

The first ever Pavilion for Children and Youth featured a lively programme of discussions, panel events, creative workshops, talks and networking, and provided a dedicated space where the voices of young activists could be heard.

Also new at COP27 was the youth-led climate forum which brought together policymakers with young representatives from the Conference of the Youth (COY17), who presented the Global Youth Statement and highlighted the topics that they wanted raising during COP27 discussions.

Other key outcomes

• The second technical dialogue of the Global Stocktake took place. The Global Stocktake aims to assess collective progress on the implementation of the Paris Agreement. The UN Secretary-General will convene a ‘climate ambition summit’ in 2023, ahead of the conclusion of the stocktake at COP28 next year.

• The Forest and Climate Leaders’ Partnership was launched, which aims to half forest loss and degradation by 2030 by uniting action by governments, business and other community leaders.

• A USD 3.1 billion plan was announced by the UN Secretary-General which would ensure that everyone on the planet is covered by early warning systems by 2027. This is particularly important for the most vulnerable communities who often have no idea that hazardous weather is on its way until it is too late.

• A 12-month masterplan was drawn up to help make cleaner energies more accessible. Involving 25 collaborative actions to be delivered in time for COP28, the plan aims to speed up decarbonisation within five key areas: power, road transport, steel, hydrogen and agriculture.

For information about last year’s COP26, check out our series of blogs on its importance, the first week update and a round up of all the major outcomes from that event and how they could affect our efforts to combat climate change, if countries and businessess stay committed. We also have a series of blogs that look at some of the toughest global climate challenges that we are currently facing.

However, climate change isn’t the only challenge the natural world is facing. Despite world-wide and on-going efforts, biodiversity is deteriorating on a global scale, with the decline projected to worsen if nothing changes. COP15, the UN Biodiversity Conference, is currently underway (7th to 19th December 2022) and aims to agree a new set of goals for nature over the next decade through the Convention on Biological Diversity post-2020 framework process. For more information on this, please check out the dedicated UN webpage.

A Short History of the Collins Bird Guide

The third edition of the popular Collins Bird Guide has arrived! With this newly published edition, we decided to take a brief look at how this highly regarded field guide came about.

Illustrated bird guides have been around in one form or another since the turn of the 20th century. It wasn’t until the post-war years, however, that they began to gain popularity, and birdwatching as a pastime became increasingly common both in the UK and farther afield. At this point, illustrated identification guides became much more available on the mass market and were no longer affordable only to the wealthier classes.

Between the 1960s and 1990s, three field guides dominated the scene in Britain and Europe: Fitter and Richardson’s Collins Pocket Guide to British Birds, Lars Jonsson’s Birds of Europe with Africa and the Middle East and Peterson, Mountford and Hollom’s A Field Guide to the Birds of Britain and Europe. But although these books were widely used, there was an appetite among publishers for the creation of a new, definitive field guide.

In 1986, well respected identification experts Peter Grant and Lars Svensson came together to begin working on just such a thing. To illustrate the book they recruited artist Killian Mullarney from Ireland, whose painstakingly detailed work was conducted from first-hand field experience, lending it a lively and lifelike quality. Creating artwork in this way, however, proved to be a slow process, and even with the addition of another illustrator- Dan Zetterström – the book was 13 years in the making. Unfortunately, Peter Grant died in 1990, some time before its eventual publication in 1999, so he never got to see the final result.

The quality of the artwork in the Collins Bird Guide is widely regarded as the best that has ever been seen. Even with contributions from two artists, there is an unparalleled uniformity in style, and the ‘jizz’ of the birds are captured beautifully alongside their more objective characteristics. Including illustrations of the birds featured in their natural habitats in order to assist with identification was another brilliant feature.

The book also differed from previous field guides in the clever and user-friendly layout of the pages. For the first time, all of the images and text for a species were arranged on a single spread – an obvious benefit when using the book in the field. Species were also arranged taxonomically, unlike many earlier books in which birds were grouped together based on their appearance.

The second edition of the Collins Bird Guide was published in 2010 to reflect new and revised taxonomy, and included both expanded text and additional illustrations. The third and most recent edition has now been published in hardback, with the paperback to follow in 2023. It is the opinion of many that ornithological field guides to Britain and Europe will never surpass the Collins Bird Guide in quality and scope – indeed, more than 20 years after its initial publication, it remains a stalwart member of most birdwatchers’ bookshelves.

The third edition of the Collins Bird Guide has now been published (hardback only, paperback to follow in 2023).

This Week in Biodiversity News – 5th December 2022

Conservation

More than 20,000 bison, in 65 herds, are now owned by 82 Native American tribes across the US. Once roaming North America’s Great Plains in the tens of millions, bison were slaughtered to near extinction by European settlers. Previously, conservation efforts for this species have excluded Native Americans but now this cultural connection is being rekindled, increasing food security, reclaiming sovereignty and improving land management.

More than 50 shark species are to be given protection from over-exploitation. Nearly 200 countries voted to add them to the list of species protected under global trade rules. This includes tiger sharks, blacktip sharks, the bonnethead and blue sharks. The two shark families, requiem sharks and hammerhead sharks, that these species belong to make up over 50% of the trade in shark fins for soup, with many species threatened with extinction. By listing them on CITES, trading products that contain these species will be much harder.

The largest-ever dam demolition will restore hundreds of miles of historical salmon habitat. Four ageing dams are set to be destroyed along the Klamath River in California and Oregon, a win for the Native American tribes and environmentalists that have been fighting for this for years. This $500 million proposal was approved in November and the project is slated to began next year, with the biggest removals taking place in 2024.

Cranes fledge young on the Suffolk coast for the first time. The RSPB recorded two successfully raised chicks at Snape Wetlands Nature Reserve by a pair of cranes. Only around 65 pairs breed in Britain each year. This is a great sign for the relatively new reserve: the original 82ha graslland was converted to wetland and reedbed between 2008-2014. The RSPB has said it will continue to manage the wetlands to encourage more cranes to breed at the site.

Common crane by Charlie Jackson via Flickr

New discoveries

A new seaweed species has been discovered more than 100 metres below the surface of the Antarctic Ocean. The red algae, Palmaria decipiens, was found by a team that included researchers from the University of Aberdeen using a remotely operated vehicle. The project, funded by the UK Natural Environment Research Council, set out to clarify the maximum depths that seaweed could grow in Antarctica. Samples were collected for further examination and DNA sequencing was then used to confirm the type of seaweed.

Extinction risk

The Mount Ballow mountain frog, only discovered earlier this year, is already facing extinction, despite living in a World Heritage rainforest. Scientists have warned that the species could become extinct by 2055 due to the impacts of climate change reducing the availability of suitable habitats. These frogs are currently stranded on an ‘island in the sky’ due to habitat loss within the upland mountain rainforests of the Gondwana Rainforests of Australia, and occupy a very narrow niche. 91% of this ecological niche would be lost under a worst-case scenario of three degrees warming, according to lead author Liam Bolitho.

Calls for a ban on eel fishing from an intergovernmental scientific organisation are challenging the UK and EU to step up on the extinction crisis. Juvenile populations of this snake-like fish have crashed by between 95-99% since 1980. The Internation Council for Exploration of the Sea (ICES) now advise that fisheries catch no European eel in 2023. With the UN Biological Conference currently taking place, now is the time for European countries to make the right commitments.

European Eel by Bernard Dupont via Flickr

Climate Change

A survey has found that 80% of Scots fear climate change impacts on Scotland’s nature. The research, conducted for charities network Scottish Environment LINK, also found that pollution and ocean warming are also major fears. Just over 1,000 Scots were interviewed between 31st October and 6th November. Nearly a third of those polled stated thay were “very concerned” about the impact of climate change on Scotland, with 50% saying they were “quite concerned”. Just 14% put that they were “not that concerned”, and only 3% stated they were “not at all concerned”.

Policy

A number of MPs are backing the bill to ban trophy hunting overseas, in hopes to protect many endangered animals that are being hunted to the brink of extinction. Support currently includes the MPs for East Yorkshire, North Devon and Milton Keynes. The bill, which has cross party support, would ban British hunters from bringing ‘trophies’ of endangered and vulnerable animals into Britain. The bill has passed its second reading and it is now preparing for the committee stage of its progress through Parliament, which is expected to take place in the New Year.

Research

Tissue loss, decay and death, along with widespread coral bleaching, were reported across the northern coastline of New Zealand last year, impacting hundreds of thousands of specimens. Latest research shows that the most severe impacts on sponges occurred in areas where a prolonged marine heatwave was most intense. These organisms serve a number of important ecological functions, including filtering large quantities of water and moving carbon from the water column to the seafloor. A major loss in coral species would change the community structure of the ecosystem within that habitat, having widespread impacts on a variety of species.

Recent and Forthcoming Titles on Climate Change

Climate change is one of the most important issues of our time, with a wealth of publications released on this topic each year, exploring causes, impacts and potential solutions. In 2019, we put together this list of thought-provoking titles on climate change but, since then, many more key books have been published. In this post, we present an updated selection, including academic titles, handbooks, collaborations, introductory textbooks, children’s books and explorations of climate history.

General

The Climate Book
Greta Thunberg | October 2022
This is an essential tool for everyone who wants to help save the world. Created in partnership with over one hundred experts, including geophysicists, oceanographers, economists, psychologists and philosophers, The Climate Book compiles their wisdom to equip us all with the knowledge we need to combat climate disaster.

Our Biggest Experiment: A History of the Climate Crisis
Alice Bell | September 2022
Bell takes us back to climate change science’s earliest steps in the eighteenth and nineteenth centuries, to the advancing realisation that global warming was a significant problem in the 1950s. It continues right up to today, where we have seen the growth of the environmental movement, climate scepticism and political responses like the UN climate talks.

Fire & Flood: A People’s History of Climate Change, from 1979 to the Present
Eugene Linden | April 2022
This is a definitive history of the modern climate-change era, from an award-winning writer who has been at the centre of the fight for more than thirty years. Fire & Flood is a comprehensive, compulsively readable history of climate change, drawing together the elements of the biggest story in the world.

Future on Fire: Capitalism and the Politics of Climate Change
David Carnfield | November 2022
This title argues that a just transition from fossil fuels and other drivers of climate change will not be delivered by business people or politicians that support the status quo. Nor will electing green left leaders be enough to overcome the opposition of capitalists and state bureaucrats. Only the power of disruptive mass social movements has the potential to force governments to make the changes we need.

Climate Change: A Very Short Introduction
Mark A Maslin | August 2021
This Very Short Introduction draws on science from the 2021 IPCC Report, examining the evidence that climate change is already happening, and discussing its potential catastrophic impacts in the future. Mark Maslin also explores the geopolitics of climate change and the win-win solutions we can employ to avoid the very worst effects of climate change.

Other key titles include Global Warming of 1.5°C: IPCC Special Report, Nomad Century, The Atlas of a Changing Climate and Food in a Changing Climate.

Physics / Climatology

The Physics of Climate Change
Lawrence M Krauss | February 2021
This book provides a unique, clear, accurate and accessible perspective of climate science and the risks of global inaction. Krauss explores the history of how scientists progressed to our current understanding of the Earth’s climate and its future. This is required reading for anyone interested in understanding humanity’s role in the future of our planet.

Climate Change: What Science Tells Us
Charles Fletcher | December 2021
This book introduces climate change fundamentals and essential concepts that reveal the extent of the damage, the impacts felt around the globe, and the innovation and leadership it will take to bring an end to the status quo.

Greenhouse Planet: How Rising CO₂ Changes Plants and Life as We Know It
Lewis H Ziska | October 2022
Greenhouse Planet reveals the stakes of increased CO₂ for plants, people and ecosystems – from crop yields to seasonal allergies and from wildfires to biodiversity. The veteran plant biologist Lewis H. Ziska describes the importance of plants for food, medicine, and culture and explores the complex ways higher CO₂ concentrations alter the systems on which humanity relies.

Introduction to Modern Climate Change
Andrew E Dessler | August 2021
The third edition of this introductory textbook for both science students and non-science majors has been brought completely up-to-date. As in previous editions, it is tightly focused on anthropogenic climate change, concentrating on the science of modern climate change, the carbon cycle, and the economics and policy options to address climate change.

Other titles include The Climate Demon, Meltdown and Beyond Global Warming.

Advice / Handbook

Net Zero: How We Stop Causing Climate Change
Dieter Helm | September 2021
Economist Dieter Helm addresses the action we all need to take to tackle the climate emergency: personal, local, national and global. Helm argues that we, the ultimate polluters, should pay based on how much carbon the products we buy produce. The goal of net-zero carbon emissions needs a rethink and Net Zero sets out how to do it in a plan that could and would work.

The Future We Choose: The Stubborn Optimist’s Guide to the Climate Crisis
Christiana Figueres and Tom Rivett-Carnac | April 2021
This is a passionate call to arms from former UN Executive Secretary for Climate Change Christina Figueres, and Tom Rivett-Carnac, senior political strategist for the Paris Agreement. We are still able to stave off the worst and manage the long-term effects of climate change, but we have to act now. This is a book for every generation, for all of us who feel powerless in the face of the climate crisis.

The Book of Hope: A Survival Guide for Trying Times
Dame Jane Goodall and Douglas Abrams | July 2022
The world-renowned naturalist and conservationist Jane Goodall has spent more than a half-century warning of our impact on our planet. In The Book of Hope, Jane draws on the wisdom of a lifetime dedicated to nature to teach us how to find strength in the face of the climate crisis and explains why she still has hope for the natural world and for humanity.

What We Need to Do Now: For a Zero Carbon Future
Chris Goodall | February 2021
What We Need to Do Now is an urgent, practical and inspiring book that signals a green new deal for Britain. Drawing on actions, policies and technologies already emerging around the world, Chris Goodall sets out the ways to achieve carbon neutrality by 2050 in the UK.

Fixing the Climate: Strategies for an Uncertain World
David G Victor and Charles F Sabel | September 2022
A compelling argument for solving the global climate crisis through local partnerships and experimentation. This book explains why the profound transformations needed for deep cuts in emissions must arise locally before best solutions can be spread globally. This is a road map to institutional design that can finally lead to self-sustaining reductions in emissions that years of global diplomacy have failed to deliver.

The Carbon Almanac
The Carbon Almanac Network | August 2022
This is a collaboration between hundreds of writers, researchers, thinkers and leaders that focuses on what we know, what has come before and what might happen next. With thousands of data points, articles and charts explaining carbon’s impact on everything in our society, it is the definitive source for facts and the basis for a global movement to fight climate change.

More titles include Hot Mess, How to Avoid a Climate Disaster, Food and Climate Change Without the Hot Air and Pandora’s Toolbox.

Psychology

Minding the Climate: How Neuroscience Can Help Solve Our Environmental Crisis
Ann-Christine Duhaime | October 2022
A neurosurgeon explores how our tendency to prioritize short-term consumer pleasures spurs climate change, but also how the brain’s amazing capacity for flexibility can – and likely will – enable us to prioritize the long-term survival of humanity.

How to Talk About Climate Change in a Way That Makes a Difference
Rebecca Huntley | January 2021
Why is it so hard to talk about the future of our Earth? Rebecca Huntley’s book explores why the key to progress on climate change is in the psychology of human attitudes and our ability to change. This is about understanding why people who aren’t like you feel the way they do and learning to talk to them effectively.

We’re All Climate Hypocrites Now: How Embracing Our Limitations Can Unlock the Power of a Movement
Sami Grover | October 2021
Taking a tongue-in-cheek approach, self-confessed eco-hypocrite Sami Grover says we should do what we can in our own lives to minimise our climate impacts, but then we need to target those actions so they create systemic change. Along the way, he skewers those pointing fingers, celebrates those who are trying and offers practical pathways to start making a difference.

Warning

Our Final Warming: Six Degrees of Climate Emergency
Mark Lynas | March 2021
Mark Lynas delivers a vital account of the future of our earth, and our civilisation, if current rates of global warming persist. And it’s only looking worse. These escalating consequences can still be avoided, but time is running out. This book must not be ignored, it really is our final warning.

Hope in Hell: A Decade to Confront the Climate Emergency
Jonathon Porritt | August 2021
Porritt believes we have time to do what needs to be done, but only if we move now – and move together. In this ultimately optimistic book, he explores all these reasons to be hopeful: new technology; the power of innovation; the mobilisation of young people – and a sense of intergenerational solidarity as older generations come to understand their own obligation to secure a safer world for their children and grandchildren.

Climate change denial

Hot Air: The Inside Story of the Battle Against Climate Change Denial
Peter Scott | August 2022
Climate scientist and MET Science Fellow Peter Stott reveals the bitter fight to get international recognition for what, among scientists, has been known for decades: human activity causes climate change. Hot Air is the urgent story of how the science was developed, how it has been repeatedly sabotaged and why humanity hasn’t a second to spare in the fight to halt climate change.

The Power of Narrative: Climate Skepticism and the Deconstruction of Science
Raul P Lejano and Shondel J Nero | October 2021
This examines the strength of climate scepticism as a story, offering a thoughtful analysis and comparison of anti-climate science narratives over time and across geographic boundaries. This is a book about how our society understands and interacts with science, how a social narrative becomes ideology, and how we can move beyond personal and political dogma to arrive at a sense of collective rapprochement.

Habitat / Species

Fen, Bog & Swamp: A Short History of Peatland Destruction and Its Role in the Climate Crisis
Annie Proulx | September 2022
From Pulitzer Prize-winner Annie Proulx comes a riveting, revolutionary history of our wetlands, their ecological role and what their systematic destruction means for the planet. A sobering look at the degradation of wetlands over centuries and the serious ecological consequences, this is a stunningly important work and a rousing call to action by a writer whose passionate devotion to understanding and preserving the environment is on full and glorious display.

Nowhere Left to Go: How Climate Change Is Driving Species to the Ends of the Earth
Benjamin von Brackel | July 2022
The lengths plants and animals must go to avoid extinction are as alarming as they are inspirational: sea animals – like fish – move on average 45 miles a decade to cooler regions, while land animals – like beavers and butterflies – move 11 miles. As even the poles of the Earth heat up, we’re left with a stark and irreversible choice: halt the climate emergency now, or face a massive die-off of species, who are increasingly left with nowhere else to go.

Hurricane Lizards and Plastic Squid: How the Natural World is Adapting to Climate Change
Thor Hanson | February 2022
This is the first major book by a biologist to focus on the fascinating story of how the natural world is adjusting, adapting and sometimes measurably evolving in response to climate change. Lyrical and thought-provoking, this book broadens the climate focus from humans to the wider lattice of life.

Children’s books

Climate Emergency Atlas: What’s Happening – What We Can Do
Dan Hooke | October 2020
Packed with facts and figures and more than 30 dynamic maps, Climate Emergency Atlas is clear and easy to understand, making it the perfect reference guide for all young climate activists. This unique graphic atlas tells you everything you need to know about the current climate emergency, and what we can do to turn things around.

A Short, Hopeful Guide to Climate Change
Oisín McGann | May 2021
What is climate change? How can it be stopped? And what can young people do to help the fight? Author Oisín McGann explains climate change science and encourages young people to be part of positive change by getting involved in the global movement to fight humanity’s biggest challenge. This book is also eco-friendly, with vegan inks, all recycled materials and fully recyclable – this book is part of the solution.

How to Change Everything: The Young Human’s Guide to Protecting the Planet and Each Other
Naomi Klein and Rebecca Stefoff | March 2022
This is the most authoritative and inspiring book on climate change for young people yet, discussing the effects of climate change, how young people are fighting back and how you can get involved to make the world a safer and better place. This gives a powerful picture of why and how the planet is changing, providing effective tools for action so that YOU really can make a difference.

Upcoming titles

Ecology of a Changing World
Trevor Price | December 2022
This book outlines the importance of species conservation relative to human existence. It breaks down ecological principles and explains six threats to biodiversity in terms anyone studying ecology, evolutionary biology, environmental science or environmental justice will understand. These threats are climate change, overharvesting, pollution, habitat loss, invasive species and disease, with Price offering the history, current status and economic and environmental impacts of each of these.

Climate Change: What Everyone Needs to Know
Joseph Romm | December 2022
This is the essential primer on what will be the defining issue of our time. Newly updated with the latest in climate science from COP26 and beyond, this third edition offers user-friendly, scientifically rigorous answers to the most difficult (and commonly politicised) questions surrounding climate change.

Outsourcing Climate Breakdown: How Rich Nations Get Away With It
Laurie Parsons | May 2023
Around the world, leading economies are announcing significant progress on climate change. World leaders are queuing up to proclaim their commitment to tackling the climate crisis. Yet the atmosphere is still warming at a record rate. Outsourcing Climate Breakdown explores the murky practices of exporting a country’s environmental impact., taking a wide-ranging, culturally engaged approach to the topic and showing that this is not only a technical problem, but a problem of cultural and political systems and structures.

You can browse our full collection of climate change titles here. We also have a number of blogs on the current challenges we face with climate change here.

Image credit: Mike Lewelling, National Park Service via Flickr

Trail Cameras: A Comparison

Trail cameras are an invaluable piece of equipment for those seeking to monitor wildlife as it is when there are no humans around. Unlike typical cameras, trail cameras are designed to be left in a particular location to capture photographs or video footage of passing animals. Thanks to infrared imaging technology, most modern trail cameras will also allow you to capture images of nocturnal animals under low light conditions.

The best trail cameras can endure a range of tough weather conditions and extreme temperatures due to weatherproof casing and a robust design. Their small size and camouflaged casing allow these cameras to blend into their surroundings and remain relatively inconspicuous. Most trail cameras can also be fitted with a python lock or security box to protect against damage or theft.

At NHBS, we sell a wide range of trail cameras and, like all products, there are advantages and disadvantages depending on the model and brand. To compare the trail cameras in our range we have prepared categories based on several of the key factors to consider when buying a trail camera. All recommendations found here are our opinions and views may differ on which cameras are best for each category.

Beginner Camera

Browning Strike Force Pro X 1080

With a fast trigger speed, strong picture quality and robust design the Browning Strike Force Pro X 1080 performs well across all major categories. While not quite reaching to heights of some of our more advanced cameras in terms of picture quality, this economic camera is perfect for those looking for a starter camera or for high quality at an affordable price.

Picture Quality

When considering image quality, keep in mind that manufacturers sometimes inflate megapixel ratings through interpolation, a process by which pixels are digitally added to the image. While on paper photos have a higher megapixel count, the image quality is not improved. This is a marketing gimmick which eats up storage and generates longer recovery times.

While our top picks for picture quality both use interpolation, it is the quality of the photographs and footage produced by the camera which we base our opinion on.

Browning Recon Force Elite HP5

With crisp and clear daytime pictures and excellent night-time imagery, the Browning Recon Force Elite HP5 wins the top spot for picture quality. Video footage produced by this camera is of equally high quality as shown by recordings from our own team:

This camera is significantly cheaper than its close competitor, the Bushnell Core DS-4K. Another factor in this camera’s favour.

Bushnell Core DS-4K

A closer runner up, the Bushnell Core DS-4K likewise demonstrates superb picture quality. An advantage of this camera is the longer battery life when using the video capture setting, permitting longer deployment in the field, together with a world-beating 4K video resolution.

Night Footage

The nighttime capabilities of modern trail cameras are a key draw for many users. Using infrared technology, most trail cameras can capture photographs and videos of elusive nocturnal animals whose movements are normally challenging to monitor.

Browning Spec Ops Elite HP5

While the Browning Recon Force Elite HP5 and the Bushnell Core DS-4K perform well at night, if you are looking for a trail camera specifically designed to excel in low light conditions, the Browning Spec Ops Elite HP5 is a safe bet. This camera displays superb nighttime video and photographs with excellent clarity and contrast. A stealthy camera with top of the range trigger and recovery speeds, the Spec Ops Elite HP5 benefits from a no glow IR flash which allows it to remain inconspicuous in the presence of easily startled nocturnal animals.

Browning Dark Ops Pro DCL

Equipped with Radiant 6 Night Illumination Technology and a longer flash range than the Spec Ops Elite HP5, the Browning Dark Ops Pro DCL produces outstanding nighttime footage; the trade-off is a significantly reduced battery life and inferior daytime picture quality compared to the Spec Ops.

Trigger Speed

The trigger speed is the amount of time between the camera detecting movement and a photograph being taken. For those looking to monitor larger animals a quick trigger speed is of secondary importance; however, trigger speed is very important when monitoring small fast-moving animals where a small difference in trigger speed might mean the difference between capturing a picture of the animal or not.

Browning Spec Ops Elite HP5

Here the Spec Ops Elite HP5 stands out from the crowd yet again. One of the top cameras in our range, its lightning-fast trigger speed of 0.1 seconds makes this camera a perfect choice for those monitoring even the quickest creatures. The Spec Ops Elite HP5 also boasts a swift recovery speed of 0.5 seconds, granting the ability to rapidly capture multiple pictures of an animal in the camera’s detection range.

Battery Life

Browning Patriot

The Browning Patriot is not only one of our best all-rounders, performing well in all categories, but also the camera in our range with the longest battery life. Depending on the settings used (videos use up more battery power), this camera can last for over a year in the field without changing batteries.

Browning Strike Force HD Pro X

Another well-rounded camera, the Strike Force is also a strong performer when it comes to battery life.

Durability

Durability – Reconyx HyperFire 2 HF2X

A strong favourite amongst researchers operating in extreme environments, the Reconyx HyperFire 2 HF2X offers unparalleled resilience and longevity. We tend to recommend this camera for use in tough conditions as it can operate in temperatures of -29° to +50°C and comes with an impressive 5-year warranty. The more expensive Reconyx UltraFire XR6 has the benefit of improved picture quality; however, this trail camera carries a shorter 2-year warranty and slower trigger speed.

A Reconyx camera being used to monitor penguins at Brown Station, Antarctica.

Cellular and Solar Cameras

Needing to go out to your trail camera when you want to change batteries, check photos or change settings can be time consuming, especially if your camera is in a remote location or if you have multiple cameras set up in different areas. Cellular and solar functionality save valuable time by reducing the frequency with which you need to physically interact with your trail camera. The trade-off is reduced image quality when compared to cameras without these features in a comparable price range.

Cellular – Spypoint LINK-MICRO-LTE

The Spypoint LINK-MICRO-LTE enables remote access to photos and settings by utilising cellular networks. It comes with a pre-activated SIM card, the free Spypoint app and a free monthly data plan allowing you to transfer up to 100 images per month. If you need to transfer more photos, choose from Spypoint’s affordable monthly payment plans.

While excellent for those wishing to leave their trail cameras in remote locations, remember the cellular features of the camera require a network connection to function, so ensure that you place the camera in a location with signal.

Please note, we cannot guarantee that cellular functions of the link series cameras will work outside of the UK.

Solar – Num’axes PIE1060 Solar Wi-Fi Trail Camera

The Num’axes PIE1060 Solar Wi-Fi Trail Camera comes with a compact solar panel attached to the top of the unit which provides the camera’s lithium battery with an indefinite power supply when placed in sufficient sunlight. This negates the need to regularly replace the trail camera’s batteries, saving valuable time. The Num’axes camera likewise features WiFi technology, allowing photos to be remotely downloaded when inside the camera’s WiFi signal range.

Cellular and Solar – Spypoint LINK-MICRO-S

You can even combine features with the Spypoint LINK-MICRO-S. The built-in solar panel and cellular function allows you to leave the trail camera in the field for longer periods of time with minimal physical interaction.

Please note, we cannot guarantee that cellular functions of the link series cameras will work outside of the UK.

Recommendations and Accessories

A few important tips and accessories can go a long way to getting the best experience out of using your trail camera.

Use lithium batteries

Many new users elect to use alkaline or standard rechargeable batteries in their trail cameras and find that their camera is not working as expected. Lithium batteries are capable of giving off a stronger surge of energy. Most trail cameras are therefore designed to be used with lithium batteries; accordingly, we offer a bundle when purchasing a trail camera which normally includes eight lithium batteries. Using the wrong type of batteries is among the most common reasons for why a trail camera is not functioning correctly.

Rechargeable alternatives are available which perform well with trail cameras.

Python Mini Cable Lock

The versatile Python Lock with an 8mm diameter and length of 180cm is ideal for securing equipment and can be used with almost all our trail cameras.

Security Boxes

These tough and sturdy security boxes will help protect your trail camera from theft and damage. Double check that the security box you are purchasing is compatible with your trail camera model.

Explore our complete range of trail cameras on our website or check out our Watching Wildlife Guide on how to choose the right trail camera for further information on trail camera features.

This Week in Biodiversity News – 14th November 2022

Conservation

Between 2003 and 2019, almost a quarter of Sweden’s remaining unprotected old-growth forest was logged. These rare and ecologically valuable forests are rich in biodiversity and are some of the last remaining areas where we can see how northern landscapes may have looked before humans began altering them. If logging continues at the same rate, all of these old-growth forests will be lost within the next 50 years.

Pollinators, such as bumblebees, are much less likely to land on flowers that have been sprayed with fertilisers and pesticides, as they can detect changes in the electric field around the flower. It was previously thought that the chemicals may affect the insects’ vision and sense of smell, but recent research has now proven that this is not the case. Spraying the plants with chemicals significantly reduces the amount of feeding that the bees undertake.

New discoveries

A tiny species of clam has been found at Naples Point, in southern California, that has never before been encountered in the wild. Prior to this discovery, our only knowledge of this species was from fossil records, and it was presumed to be extinct. This diminutive mollusc, described in 1937 from fossil remains as Bornia cooki, has a shell which is only 10mm wide and a bright, white-striped foot which is used for burrowing.

Climate change

A new review, published in Ecological Monographs, has warned that the effects of climate change on insects is likely to ‘drastically reduce our ability to build a sustainable future based on healthy-functional ecosystems’. Compiled by a team of 70 scientists from 19 countries, the report describes both the short- and long-term prognosis for insects as bleak, and stresses that urgent action at both a personal and policy level is required.

A new analysis from the groups Global Witness, Corporate Europe Observatory and Corporate Accountability reported that 636 fossil fuel lobbyists are registered to attend the COP27 climate talks – a figure that is up 25% from last year. This shows a worrying rise in the influence of the fossil fuel industry at these critical climate talks.

There is increasing concern that the Arctic ocean is becoming warmer and saltier due to climate change. Referred to by oceanographers as ‘spicy’ water, these increases in temperature and salinity are a problem, as they create a layer of water that tends to sit on the surface and not mix with the cooler, less salty (or ‘minty’) water below. This then impacts the formation and maintenance of sea ice.

Citizen science

Keen citizen scientists in the UK are being asked to contribute to a huge study looking at changes in mammal activity in response to climate change. The MammalWeb network, which was founded in 2013 at Durham University, will utilise images from camera traps deployed by members of the public around the country to build a comprehensive picture of the UK’s mammal populations. In doing so they hope to gain better insights into the policies and interventions that are needed the most to conserve these populations.

Research

A new technique developed at the Université de Montréal (UdeM) and the University of Minnesota will allow scientists to gain insights into how species of plant that have been preserved as dried specimens in herbaria interacted with their environment when they were living. By learning more about traits such as leaf structure, chemical composition and water content, it is hoped that more information can be gained about how plant communities have changed over time, and how we might help them to thrive in the future.

In the Field – Kite APC Stabilised Binoculars

Kite Optics has always been a provider of high-quality optics, and we were thrilled to be given the opportunity to test a pair of stabilised binoculars from their range. The Kite APC Binoculars are purported to be ideal for watching birds and other wildlife. The big draw is the construction and ability to stabilise the image for more accurate observation.

Unpacking

Opening the box, you find a neck strap, carry case, instruction manual and the binoculars themselves. The first impression of the binoculars is that they look and feel ready for anything. The binoculars’ rubber casing provides an incredibly easy grip while giving you the feeling that they could withstand a little rugged handling.

To start with

Before using the binoculars for the first time you need to take the necessary first steps, as you would with any pair of binoculars. Adjust the dioptre ring to take care of any sight needs, alter the width of the eyepieces if needed (which was simple as they are linked together mechanically to create a single round image when looking through the eyepieces) and insert some batteries.

This is essential to get the full impact of what these binoculars have been designed to give you. It should be noted that the manufacturer clearly states that you should not use rechargeable batteries in this product. As with all electronics that may be put away for periods of time, you should also not leave the batteries in the binoculars while stored. Though you only need to use two batteries to run the stabilisation, there is a compartment for another two batteries, effectively giving you double the length of use while out in the field by swapping over tired batteries with the spares.

To access the battery compartments, you need to look at the front end of the binoculars. On either side of the lens, you will see recessed openings with plastic lids that have flip-out handles. It was a little fiddly at first to get hold of these, but once raised, opening the compartments was easy. When replacing the lids on the compartments you cannot over-tighten them. When screwing them shut, you will reach a positive stop.

How we tested them

Originally the plan was to take the binoculars out on a boat to view birds, seals and dolphins. However, in the timeframe, it wasn’t possible as the weather stopped the trips going out. An alternative was to take the binoculars up to a local reserve in Devon, Berry Head. An ideal location for watching the sea traffic, scanning the water for cetaceans and viewing the local guillemot colony that is nesting on the cliffs, along with other pelagic species.

The objective here was to see how well they handled the windy conditions and the distance to the subject both on the water, in the air and on the cliffs.

What we found.

With a relatively clear and bright day to start with and a medium wind, it was easy to break the test down into three areas based on subjects. Walking to the edge of the headland, I started scanning the sea. Plenty of gannets were around in a couple of sea locations and, while watching them, they started to dive. Initially, I left the stabilisation off just to get a good understanding of how they felt based on having to compensate for any shake with my hands. It quickly became clear that was quite tiring on the wrists and fingers while keeping the image as steady as possible. These binoculars can be quite heavy, though you should take into account that they contain stabilisation technology. Turning on the stabilisation, using the horizontal dial, and raising them to view, I was amazed at the change in the viewing experience. If you have ever used a more recent phone to shoot video, you will understand the concept of the gimbal mechanism that is deployed in the binoculars. The image became a lot smoother, even with irregular gusts of wind. Being able to track the birds not only in flight but as they dived made the experience much more informative. While watching the gannets, the extra magnification enabled me to view them angling their heads to the side to look down on the sea while searching for fish.

A fortunate moment occurred while the birds were diving. Something I had hoped to test on a boat occurred with the appearance of a cetacean. There are five different cetacean species off our coast in Brixham. The one that is most difficult to spot because of their surfacing behaviour is the harbour porpoise. Typically, you get a fleeting glance as they surface and then they are gone, reappearing after some minutes in a different location. Harbour porpoises are more solitary in their behaviour which can also add to the challenge. But with the sharpness, contrast and stability of the binoculars I could scan around the area the birds were feeding and note any surface disturbance, sometimes pre-empting the moment the porpoise surfaced. This coupled with the clarity of the optics gave me the chance to identify the species, recognising the small angular dorsal fin before it submerged again. It should be noted that there was a slight chromatic aberration around the edges of the image, but this was outweighed by the image quality where it counts.

The final test was to visit the opposite side of the reserve and use the vantage point across the cove from the nesting colony. This is some distance away on the cliffs, so again I decided to turn off the stabilisation and try to look at the guillemots before switching it on. To provide a comparison I shot a couple of videos through the eyepiece to show the stability of the binoculars before and after activating the stabilisation. It’s apparent that, if you were trying to assess colony size, you could quite easily carry out a census using these binoculars.

Opinion

These binoculars are built to withstand a good level of environmental bashing! With a waterproof construction (IPX7) and the rugged covering, I wasn’t afraid to use them out in the elements. The clarity of the view through the binoculars provided a level of confidence in judging the scene and the species within. Contrast and colour were well represented, which is incredibly important when bird watching as this will be the difference between identifying one species over another. The stabilisation was a real game changer, especially for identification purposes. I would feel good about using these on a boat to be able to survey cetaceans as when you halt the boat, the rocking on the sea would make this an ideal advantage for scanning the water. Good thought has been put into the design of the controls, with a large horizontal focusing wheel easily accessible and controlled using the tips of fingers. The stabilisation switch has been designed not to intrude on the use of the binoculars. Turning the stabilisation on lets you forget about the need to activate them. When you aren’t using the binoculars and they are in a vertical position, around your neck, for example, the stabilisation goes into sleep mode, improving the battery life. I would mention that they are quite heavy, without the stabilisation you could get fatigued trying to compensate to keep the image static, but with the stabilisation active, I know the stress on the hands would be less.

The Kite APC Binoculars can be found here. Our full range of Kite Optics binoculars can be found here.

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.

The NHBS Guide to UK Lichens

Lichens are composites of two or more different organisms, an alga or cyanobacteria living among the filaments of a fungus species. It is a symbiotic relationship where the fungal partner, also termed the mycobiont, makes up the body or ‘thallus’, and the algae or cyanobacteria is the photosynthetic partner, or photobiont, providing nourishment. There is debate as to whether this symbiotic relationship is mutualistic, where both parties benefit and neither is harmed through this interaction, or a type of controlled parasitism, where the mycobiont is ‘farming’ the photobiont for the sugars produced by photosynthesis.

There are over 1,800 species recorded in the UK, and 17,000 species worldwide. There are three main categories of lichen body types: crustose, fruticose and foliose. Crustose lichen are species that form thin, crust-like coverings that are tightly bound to the surface they’re on. Fruticose lichen form coral-like bushy or shrubby structures with a holdfast, a root-like structure that anchors it to trees, rocks or other surfaces. Foliose lichen are species that have a flattened, leaf-like thallus with an upper and lower cortex, the surface layer or ‘skin’ of the lichen, and attach to surfaces by hyphae with root-like structures called rhizines. There are other growth forms, such as leprose (a powder-like or granular appearance), squamulose (scaly), filamentose (stringy) and byssoid (wispy). These can also be divided into numerous subtypes.

Lichens are an important food source for many species, such as deer and goats, and are used as building material for birds nests. They occur from sea level to high elevations, tolerating many different environmental conditions. They grow on a wide variety of surfaces, from tree bark, leaves, mosses, rocks, gravestones, roofs, soil, bones and rubber. The general guidance for identifying lichens is to look at growth form, colour, habitat and substrate type and distribution. You should also look for the presence or absence of certain structures such as rhizines, soredia (scale-like reproductive structures), isidia (column-like outgrowths of the thallus) and apothecia (a cup-shaped structure containing asci, spore-bearing cells). A hand lens and a guide that covers other lichen species will be useful for identifying these.

Spot tests can be performed, which involve placing a drop of a chemical, such as potassium hydroxide or sodium hypochlorite, on different parts of the lichen. Any colour change, or lack thereof, can be used for identification when following dichotomous keys for lichen species. Care should be taken when using chemicals, however, particularly in the natural environment, due to the damage they can cause.

Some species are harder to identify in the field and require microscopic examination or further chemical testing. Additionally, there may be variations in appearance due to weather conditions or the condition of the lichen. Its colour can change when the lichen is wet or in poor condition, for example, or the growth form can appear different if the lichen has begun to disintegrate.

Elegant Sunburst Lichen (Xanthoria elegans)

Distribution: Widespread, but most frequently found in upland areas.
Growth type: Foliose
What to look for: This is a small lichen, typically no more than 5cm wide with lobes that are less than 2mm broad and closely pressed against a surface. Their upper surface is orange, with a white lower surface, a cortex (skin), and attached with short, sparse hapters (peg-like structures on the lower surface of lichen). Soredia and isidia are absent but apothecia structures are common.

Common Greenshield Lichen (Flavoparmelia caperata)

Distribution: Widespread, more common in the western and southern parts of England, scarce in northern and central Scotland.
Growth type: Foliose
What to look for: This is a pale grey species that turns yellowish-green when wet. The lower surface is black with a brown margin and black, unbranched rhizoids that attach it to the substrate. Its lobes are rounded, around 3–8mm wide, with patches of soredia. The lobes are often wrinkled in appearance, particularly in older specimens.

Hooded Rosette Lichen (Physcia adscendens)

Distribution: Widespread
Growth type: Foliose
What to look for: Hooded rosette lichen is a pale grey species, with lobes up to 2mm wide that are curled into a hood shape. They have cilia, thin projections from the margin of the lichen, which progress from pale to black at the ends. Soralia are usually abundant and disc-shaped apothecia can also be present. The lower surface is white to greyish. They are attached to surfaces by rhizines, which can be white to black.

Hoary Rosette Lichen (Physcia aipolia)

Distribution: Fairly widespread
Growth type: Foliose
What to look for: This species is pale, from white to bluish-grey. It has white-rimmed apothecia that have black centres. Soralia and marginal cilia are absent. The lobes also have distinct flecks of white called pseudocyphellae. It grows in well-lit habitats, usually on fences or trees, often in the nodes of branches.

Common Orange Lichen / Yellow Scale (Xanthoria parietina)

Distribution: Widespread
Growth type: Foliose
What to look for: This species is a yellow-orange coloured lichen that can appear greener when wet. It is a leafy lichen with flattened lobes that are between 1–4mm in diameter. Its lower surface is white and has pale rhizines or hapters. Similarly to X. elegans, soredia and isidia are absent but yellow or orange apothecia are usually present. There is a cortex that is made of tightly packed fungal hyphae, which can be thicker in more exposed locations and is thought to protect the lichen from evaporation and exposure.

Monk’s Hood Lichen (Hypogymnia physodes)

Distribution: Widespread
Growth type: Foliose
What to look for: The thallus is grey to greenish-grey, with inflated lobes that lift at the tips. These inflations can burst open, displaying the floury soredia inside. They may have black dots, called pycnidia, near the lobe tips. Rhizines are absent and the lower surface is wrinkled with a light brown margin, darkening towards a black centre. They may have apothecia, which occur on short stalks and have a red-brown disc.

Many-forked Cladonia (Cladonia furcata)

Distribution: Widespread, particularly in heathland, healthy turf and on dunes.
Growth type: Fruticose
What to look for: This species has an upright secondary thallus, called the podetium, which can vary from grey-green to brown. This forms loose mats, and the finer branches are erect and sharply pointed. Soredia are absent, with few to no squamules (scales). They may have small, green areolar patches set into or raised on the cortex surface. The podetia become darker brown and glossy with age. Pycnidia, the asexual fruiting bodies, are small, brown and are found on the branch tips. This species has apothecia, which are brown and occur in extended clusters at the ends of podetia.

Lasallia pustulata

Distribution: Scattered distribution, mainly in parts of Wales, south- and north-west England and scattered areas of Scotland.
Growth type: Foliose
What to look for: The thallus of this species is a pale grey or brown when dry but becomes brownish or yellowish-green when wet. It has convex pustules across its upper surface which often appear darker in colour and are covered in a powder towards the centre. The margins of this species are often ragged and can be darkened by the presence of black isidia. The lower surface can be grey, brown or black, and have corresponding depressions to the pustules on the upper surface. Rhizines are absent and this species is attached to substrate by a stalk.

Dry state: Jacinta lluch valero via Flickr

Oakmoss (Evernia prunastri)

Distribution: Widespread
Growth type: Fruticose
What to look for: They primarily grow on oak trees but can be found on the trunk and branches of other deciduous trees and conifers. This species is flat and strap-like, highly branched (forked) and bushy, forming large clumps when growing together. When dry the thallus is rough and the colour can vary from green to a pale greenish-white. When wet, they appear dark olive-green to yellow-green and are rubbery in texture.

Pink Earth Lichen (Dibaeis baeomyces)

Distribution: Widespread in Scotland and Wales, scattered throughout England, more common in the north and west.
Growth type: Fruticose
What to look for: Pink earth lichen have bulbous pink apothecia that are around 1–4mm in diameter, set on stalks up to 6mm tall, although these are not always present. The thallus can vary in colour between grey or white, occasionally with a pink tinge, and can appear greenish-grey when wet. They are coarsely granular and are sometimes covered in small, white balls up to 1mm in width, with small powdery areas.

Yellow Map Lichen (Rhizocarpon geographicum)

Distribution: Widespread in Scotland and north-west England, and the upland areas of England, Wales and Ireland. Less common in the East Midlands, East of England and the South East.
Growth type: Crustose
What to look for: This is a bright yellow to yellow-green species, with a cracked thallus, flat, black apothecia and bordered by a black line of fungal hyphae. This lichen grows in patches adjacent to each other, giving the appearance of a map.

Recommended books and equipment

Lichens: Towards a Minimal Resistance

The result of several years of investigation carried out on several different continents, this remarkable book offers an original, radical and, like its subject matter, symbiotic reflection on this common but mostly invisible form of life, blending cultures and disciplines, drawing on biology, ecology, philosophy, literature, poetry, and even graphic art.

Lichens: An Illustrated Guide to the British and Irish Species

This book provides an invaluable guide to identifying the British and Irish species both for the amateur naturalist just starting to study lichens and the more advanced lichenologist. It offers the environmentalist and ecologist a concise work of reference, compact enough to be used in the field.

FSC Wildlife Pack 20: Lichens

These colourful and widespread organisms can be seen all year round. Featuring six of the FSC’s popular fold-out charts: lichens on twigs, churchyard lichens, urban lichens 1 and 2, rocky shore lichens and lichens of heaths and moors

Each pack includes a card-sized magnifier, so you can get in even closer to the details.

Opticron Hand Lens (10x 23mm)

Observe the finer details of your specimen with this high-quality 23mm doublet lens, the most commonly recommended magnifier for all types of fieldwork.

All prices are correct at the time of posting, but may change at any time.
Please see nhbs.com for up to date pricing and availability.