Half the world’s estuaries have been altered by humans, with 20% of estuary loss occurring in the past 35 years alone as a result of urban or agricultural land expansions. Ninety percent of this has occurred in rapidly developing Asian countries, whereas very little estuary loss has been noted in higher income countries within the same period. This is because waterway alterations in these higher income countries were made many decades prior during their own urban development stages. With much of the world now trying to undo this damage and rewild urbanised areas, countries are now investing in programmes to return these areas to wild mudflats and salt marshes which will increase climate resilience, replenish aquatic populations, reduce flood risk and aid nature’s recovery.
An aerial view of a large body of water by Nick Russill, via unsplash.
The introduction of new diseases via open import systems are destroying EU trees and crops, with outbreaks on the rise once again. This comes after a mutation of one of the major killers of Olive trees in Italy, Xylella fastidiosa, was detected in America and is now wiping out US vineyards alongside its Italian counterparts. New data has revealed that an average of 70 foreign plant diseases were introduced to the EU between 2015–2020, despite legislation being enforced to prevent their spread in 2016, and scientists are holding open systems accountable. According to international protocols, only 2% of imported plants travelling through open systems are inspected for the presence of diseases, meaning that an alarming number of plant pests may be brought into the EU undetected. Although some pathogens are harmless in areas where ecosystems have evolved alongside them, they can be deadly when introduced to a new area. As global temperatures continue to rise, the problem is only likely to get worse.
Conservation
A UK study has proven that wilder gardens boost butterfly population numbers, with long, uncut grass likely to almost double butterfly abundance. This research, co-authored by the head of science at Butterfly Conservation, recorded a 93% increase in butterflies in gardens within farmed landscapes who did not cut their lawns, while gardens in urban areas noted an 18% rise in population numbers. These wilder habitats attract species whose caterpillars live and feed on the grass, provide greater quantities of nectar that are necessary for butterfly survival, and create important breeding habitats, which subsequently increases population numbers. The study advises that long grass should be left until late September or early October before cutting as some species require longer grass nearly all year round.
Holly blue butterflies by Nikk, via flickr, (image rotated).
Music featuring the sounds of nature earn royalties that will be donated to environmental causes. This new initiative, launched by the Museum for the United Nations, will recognise nature as an official artist on major music streaming platforms. A share of the royalties earnt when these songs are played will be donated to environmental causes and initiatives who are working hard to protect nature for the future. Nature itself will also have its own artist page on Spotify which will showcase ambient recordings of nature’s sounds, with 70% of the profits from these tracks funding conservation programmes.
The south coast’s only breeding Osprey pair have laid a fourth egg. These birds became the first nesting Ospreys on the south coast for 180 years after their reintroduction seven years ago. They returned to Poole Harbour in late March after their migration to West Africa and laid their first egg on the 15th April 2024. As female Ospreys usually only lay 3 eggs due to the challenges of feeding 4 young, researchers were surprised to find a fourth, but due to the exceptional job the pair did while caring for 3 chicks in 2023 they have high hopes for success this season.
Common Eastern Bumblebee queens have adapted so they can survive underwater for up to a week during hibernation, which is thought to be responsible for the species’ continual population stability, despite a third of all other bumblebee species currently in decline. This study was conducted as a result of water leaking into containers housing hibernating queens; results revealed that over 80% of the bees survived when submerged for up to seven days. Scientists noted that these findings are unusual as most overwintering insects cannot cope when submerged in water. However, it is hoped that this flood tolerance will help the species continue to thrive in the wild.
Common Eastern Bumblebee by Judy Gallagher, via flickr.
The largest snake that ever lived has been discovered in Western India, measuring up to 15m long and weighing a tonne. The fossil of the Vasuki indicus snake was discovered in a mine in western India and included 27 vertebrae, a few of which remained in the correct anatomical position. Scientists concluded that it would have lived in marshy swamps around 66m years ago during the Cenozoic era and, due to its size, it would have been a slow-moving ambush predator who attacked its prey through constriction.
The UK’s first national assessment of earthworms has revealed that their populations decrease by 2% annually, and overall earthworm population numbers have fallen by a third over the past 25 years. This study, conducted by an ecologist at the British Ornithology Trust (BTO), also concluded that the largest decline in this species has been observed in broadleaf woodland ecosystems. This may now be having detrimental effects on other species, such as woodland birds, who have seen a subsequent population decline of 37% since 1970. Barnes’ study concludes that, if these results are found elsewhere, the long-term decline of this keystone species could affect our ability to grow crops, as worms aid the growth of 140m tonnes of food a year. It may also have catastrophic effects on soil health, ecosystem structure, function, and above-ground wildlife.
20060131 earthworm dives by schizoform, via flickr.
Global rainforest deforestation continues at a rate of ten football pitches per minute. Despite widespread efforts to minimise deforestation across the Brazilian and Colombian Amazon, new data has revealed that 37,000 sq km was still removed from previously undisturbed rainforests in 2023. Large increases were noted in Bolivia, Laos and Nicaragua, which has now offset the positive progress made by other countries in the reduction of deforestation. Experts have warned that governments are unlikely to meet their climate and biodiversity commitments due to the continuation of mass deforestation, with many going against the COP28 agreement to halt and reverse the loss and degradation of forests in the next six years. This puts the 2030 zero-deforestation target even further out of reach.
New research has revealed that national parks are failing to tackle the biodiversity crisis, despite these important areas covering 10% of England and 20% of Wales. Due to lack of government funding, the direct grant set aside for national parks has been cut by 40% since 2010, resulting in poor peatland condition, no change in woodland biodiversity in a 5-year period, and a significant decline in river and lake health. Aside from a lack of funding, national parks are not restoring nature as only 13.7% of the land is publicly owned, with the remaining 86.3% privately owned and often intensely farmed. Campaign for National Parks is calling for a new deal that ensures the government sets a clear mission to increase nature protection and restoration in the UK’s national parks, and subsequently double core national park grants to reinstate this vital funding to its 2010 level.
One of the world’s most elusive moles has been sighted in Australia. The Northern Marsupial Mole, or Kakarratul, lives in one of the most remote parts of Australia and is only sighted a few times each decade. Due to their rarity, authorities are still unsure of their population size and these creatures remain a mystery to most of the world. However, the Kanyirninpa Jukurrpa Martu rangers discovered the rare, blind Northern Marsupial while working in the Great Sandy Desert, making this the second species sighting in six months.
Progress has been made in the first ever shark translocation project, which aims to reintroduce Zebra Sharks to the Raja Ampat archipelago in Indonesia after the species was declared functionally extinct due to overfishing and habitat degradation. This is the first initiative attempting to translocate shark eggs from an aquarium to a hatchery before releasing them into the wild. Two sharks have recently hatched on the island of Kri and will be kept in tanks until they are strong enough to be released into the wild. The project aims to release 500 Zebra Sharks by 2032 in the hope of creating a genetically diverse breeding population that will aid long-term species recovery. If successful, this rewilding project will set a strong example of how to re-establish endangered species populations in marine ecosystems and would be a breakthrough for future conservation efforts.
A record hot March leads to fears of faster rates of climate change.Last month was the hottest March on record, reaching 1.68°C warmer than in pre-industrial times. This marks the tenth record breaking monthly temperature in a row, and scientists are concerned that they may not temporarily fall, as expected, after the El Niño period due to the warm weather experienced at the end of 2023. Researchers are now trying to ascertain whether the changes in El Niño are a phase shift or just an anomaly in long-term climate trends. Although they are unsure how conditions in the Pacific Ocean will evolve over the coming months, current predictions suggest it could be replaced by a full La Niña cooling phase.
Increasing shortages of early season food threatens bumblebee populations.A new study published by the Universities of Oxford and Exeter has revealed that pollinator-friendly plant species are now flowering up to a month too lateto aid bee conservation, resulting in low colony survival rates and reduced queen production.The reduction in pollen and nectar availabilityduring the March to June period, which is critical during theearly stages of colony formation,can have catastrophic effects on colony populations, with research suggesting that a two week gap in pollen supplyreduces the production of daughter queen bees by up to 87%. To combat this decline,it is recommended that existing hedgerows should be populated with early blooming species such as Ground Ivy, cherry, and Hawthorn, which would increase colony success rates from 35% to 100%.
A pioneering translocation project aimed at saving a rare species of fungus in now underway in Cumbria. The Willow Glove fungus is a critically endangered species that can now only be found in two woodlands in Scotland, with the majority of it living on a single fallen tree. Scientists have recently removed sections of dead wood that the fungus is living on and relocated it to three receptor sites in an attempt to prevent the species’ impending extinction. The fungus is being transported to protected sites of special scientific interest where the fungus was last recorded before it became extinct in England 50 years ago. Host trees have been selected due to their plentiful supply of willow glue, a parasite that the Willow Glove depends on for survival. The success of this relocation technique will be monitored by volunteers from Cumbria Fungi Group for the next five years.
RHS Rosemoor aims to rediscover lost, native apple varieties to help the fruit survive climate breakdown. This spring, horticulturalists are searching for lost varieties of apple trees that used to be abundant in ancientorchards, with the goal of discovering the genetic traits of those species that are still thriving today. The University of Bristol and Sandford Orchards will each receive the genotypes of apple species that have beendeemed important from across England and plan to investigate the rare ‘survivor varieties’ that have not been propagated,collected or recorded before. The hope is that their genetic code can be preserved for future usein an attempt to safeguard biodiversity and boost the UK apple industry’s resilience to climate change, particularly for those species that are native to this country. This project will play a vital role in the sustainability of the UK’s commercial orchards, 80% of which have been lost since 1900.
A newly discovered orchid species boasts the longest nectar spur of any known plant relative to its flower size.The Solenangisimpraedicta, found in the forest canopies of central Madagascar, is the first orchid discovered since 1965 that has made extreme adaptations to allow only a certain speciesto access its nectar andfacilitate pollination. Its hyper-long nectar spur,measuring 33cm, makes it the longest of any known plant when compared to its small flower size of only 2cm, and researcherssuggest it may only be accessible to the Long-tongued Hawkmoth. The significance of this discovery has been noted due to the similarities between this species and Darwin’s Orchid (Angraecumsesquipedale), which is also native to Madagascar. Darwin speculated that only a moth with an exceptionally long proboscis could reach the nectar, while Alfred Russel Wallace further built on this in his predication that a hawkmoth would be the only species able to do so. Finding this rare orchid highlights the urgency of conservation measures in Madagascar that are necessary to combat the rapid rate of deforestation occurring on the island.
Hummingbird Hawkmoth by Peter Stenzel, via flickr.
An ancient species of river dolphin has been discovered in the Peruvian Amazon. A team of palaeontologists have found a giant fossilised skull on the shores of the Napo River that belonged to the largest-known species of river dolphin in history. This colossal creature,measuring 3-3.5 metres in length, is not related to the nativeAmazon River (Pink) Dolphins, but rather the South Asia river dolphins who are found 10,000km away. Researchers suggest that the dolphins’ ancestors originally lived in the ocean but ventured into the abundant freshwater ecosystems of the proto-Amazonia, before becoming extinct when new habitatsemerged and their prey vanished.
Environment
The earliest-ever sighting of the Asian Hornet suggests they may now be established in the UK. The Department for Environment, Food and Rural Affairs (DEFRA) has recently confirmed that an Asian Hornet was sighted and captured on the 11th March in Kent – one month earlier than the first hornet sighting of last year. Once hornets are established, it’s almost impossible to get rid of them, and with Asian Hornet numbers having skyrocketed in the UK in 2023, scientist are concerned that they are now overwintering in the UK. This may have detrimental effects on wild pollinators emerging from hibernation, particularly Britain’s bee populations which play a key role in agricultural pollination.
Ponds, pools and puddles are a common sight in our landscape and play a very important part in sustaining wildlife. In Volume 148 of the New Naturalist Series, the authors provide a comprehensive survey of the variety of plants and animal life for which they are a habitat, and discusses the way in which they are used, their importance, and compares their major variations in life cycles. Ponds, Pools and Puddles makes an invaluable contribution to raising awareness of these popular, yet frequently underrated freshwater habitats and gives them the attention they rightly deserve.
Jeremy Biggs and Penny Williams work for Freshwater Habitats Trust, a wildlife conservation charity focused on reversing the decline in freshwater biodiversity. They have been involved in numerous research projects, publications and conferences on the ecology and management of ponds and other freshwater habitats.
We recently had the opportunity to talk to Jeremy and Penny about how they became interested in ponds, whether they think technological advances will play an important role in future pond research and more.
Jeremy Biggs
Can you tell us how you both became interested in ponds and pond life?
P: I had a wonderful early experience at primary school: we had a trip to a local pond in Southborough, Kent and caught a Three-spined Stickleback. The teacher brought a couple back to a classroom tank and I watched in amazement as the beautiful azure blue and orange male made a nest and fanned the eggs with his tail.
J: I was interested in wildlife from my teens, particularly birds, but it was at university (Royal Holloway, University of London) that my interest in freshwater was awakened. Crucial for me was an inspirational teacher – the late Dr Nan Duncan – who ran one of the best courses there was on freshwater biology.
I found your definition of a pond interesting as there appears to be so many ways of deciding what constitutes a pond. Can you talk us through the process that you went through to decide on the parameters for your definition?
P: After working on ponds for a couple of years it became clear that we needed an easy-to-use definition, particularly to deal with the inevitable question: is it a pond or a lake? It also had to include temporary ponds, which were hardly recognised in the UK at the time. So, at Freshwater Habitats Trust we went for an area-based definition because that’s easy to measure. We set 2 ha as the pond/lake cut off, as this seemed to best capture the difference between the two. The ‘wet for at least four months of the year’ is included as this is roughly the time needed for ponds to develop a wetland plant community. That means that you should be able go to a basin that’s wet or dry at any time of year and tell if it is a pond. In practice, the lower limit is a little flexible: we use 1m² to include tiny pools and garden ponds, but for practical reasons use 25m² for national counts of ponds where it’s impractical to count every little countryside puddle.
Penny Williams
It’s clear that the first national pond survey paved the way for gaining a more in-depth understanding of pond classifications, species, ecological preferences and more. What do you think the next step is in gaining an even greater understanding of ponds, and do you think modern, technological research methods will play a big part in this?
P: Current policy, legislation and general awareness of the importance of ponds now lags way behind our knowledge of pond ecology – so although there is still an enormous amount more to find out about pond biology, I think the greatest need is for knowledge that shows the importance and value of ponds for protecting freshwater biodiversity. For example, we need evidence about how high-quality pond creation and restoration can be used, at a landscape scale, to maintain healthy freshwater metapopulations, prevent extinctions and enable the spread of species that may be increasingly isolated by pollution and climate change. This is a real focus for Freshwater Habitats Trust, where we’ve been championing the importance of small waterbodies – and ponds in particular – for more than three decades.
Modern technology will undoubtedly play a part in this: DNA, and eDNA in particular, may be a game changer, although we are some way off from using it for the purpose that I would love: routine monitoring of all waterbodies (rather than just rivers) to get a real understanding of what is happening to freshwater biodiversity in our landscapes and how we can best address that.
New technologies are always exciting but, to be honest, I think the main thing we need at the moment is publicity, publicity, publicity. Widespread knowledge and appreciation at all levels of how wonderful these little waterbodies are.
J: More than a particular technological solution, what we really need is funding for ‘National Pond Survey 2’, led from a conservation perspective and, as we’ve been doing for the last 30 years, generating and testing the ideas that Ponds, Pools and Puddles summarises. There’s so much to learn here: are ponds still declining in quality? What’s the effect of pond management? How do ponds, lakes, streams, wetlands and rivers interact? What about the microbiota which we know next to nothing about (that is something eDNA will help with)? How is climate change affecting ponds?
It was fascinating to learn that there is a much greater variety of species found in ponds in comparison to river communities. How important do you think ponds are in the recovery of nationally scarce or Red Data Book species?
J: The very wide variety of nationally scarce and Red Data Book species found in ponds means that ponds are absolutely vital for the recovery of these species. The special virtue of ponds is that, with their small catchment, we can still find large numbers of very high-quality ponds in the landscape, or create new, near pristine, clean water ponds in areas protected from pollution. This is all much more difficult for streams, rivers and many lakes with their much bigger catchments. There’s no doubt that creating and restoring networks of clean water ponds could put many of our Red Listed freshwater species on an upward trajectory. Indeed, this is one of the aims of Freshwater Habitats Trust’s vision to build the Freshwater Network: to reverse the decline in freshwater biodiversity. This will see us creating a network of wilder, wetter, cleaner, more connected freshwater habitats, and ponds play a big part in this concept.
Delta Pond in Eugene, Oregon by Rick Obst, via flickr.
To what extent do you expect climate change to affect the ecological formation and chemical makeup of natural ponds in the future?
P: The effects of climate change on ponds are undoubtedly going to be complex, varied, unexpected and unpredictable. For example, in the Water Friendly Farming project, where we’ve been monitoring the same ponds for over a decade, a clear (but not predicted) result is that shallow ponds are being rapidly encroached by marginal wetland vegetation in dry years, and this vegetation persists so that open water is being lost. However, the effect differs: where ponds are grazed this has been beneficial, sometimes enabling uncommon plants like Orange Foxtail (Alopecurus aequalis) to spread to lovely new poached drawdown zones. In other cases, it has been sad to see little ponds with water buttercups be replaced by just wetland grasses like Sweet-grasses (Glyceria spp) and Creeping Bent (Agrostis stolonifera).
J: Climate change is going to have a big impact, but the effects are going to very difficult to predict. Ponds are so varied, it’s inevitable that their responses will be too. It’s possible to make sweeping generalisations (pollution impacts get worse, many temporary ponds disappear) but there’s a good chance these will wrong. It’ll be crucial to have a good set of observations of what is actually happening to ponds. In the meantime, the priority should be to use ponds to put as much clean water as we can back into the landscape.
What is the most interesting finding that you have come across while researching ponds, pools and puddles?
P: For me it’s undoubtedly been the opportunity to riff on my geological background and delve into the ancient natural processes that shaped ponds in the past – and which still has so much to teach us about ponds (and other freshwaters) today. For example, I love the fact that almost all of today’s wetland plants evolved in landscapes that had already been shaped by grazing and poaching processes for over 200 million years – no wonder many wetland plants benefit from grazing and the presence of muddy ground! And, at a time when many people (including scientists and policymakers) still undervalue ponds as man-made artificial features, some of world’s best-preserved evidence of early life in terrestrial landscapes (the Devonian Rhynie cherts in Scotland which are c400 my) reveal an environment that is full of ponds with the fairy shrimps and tadpole shrimps swimming amongst stoneworts.
J: For me, it’s been the chance to bring together so much information that we simply haven’t had a chance to publish anywhere else. With the amount of time it takes to publish research, we are extremely selective about what we write up in papers. Only the most important results ever make it into print. It’s also allowed us to look at groups we don’t work on so much ourselves (such as the microalgae) and see how these reinforce many of the ideas about ponds from the more obvious bigger plants and animals. It’s also nice to get into the book the truth that many of our biggest and most famous wetlands, like the Coto Donana in Spain, are actually massive pond complexes comprised of over 3,000 temporary ponds!
Pennington Flash Pond through the Trees by Ronald Saunders, via flickr.
Are either of you working on any other projects that we can hear about?
J: Freshwater Habitats Trust is really busy at the moment! Amongst other things we are:
– Launching the Freshwater Network: this is our plan to restore freshwater biodiversity taking account of freshwaters, including the critically important small (standing and flowing) that make up most of the water environment but have been largely overlooked for 100 years.
– Developing the network in key regions to protect and restore freshwater biodiversity in some of our most important freshwater landscapes like the New Forest, The Brecks, in the catchment of the R. Thames and in the Yorkshire Lowlands.
– Working with colleagues in Europe and South America looking at pond biodiversity, ecosystem services and climate change as part of the EU Horizon 2020 PONDERFUL project.
– Beginning research on the value of pond buffer zones in a project for Natural England and assessing the role that eDNA can play.
– Creating thousands of new ponds with Amphibian and Reptile Conservation as part of the Newt Conservation Partnership – created for Great Crested Newts but with much wider benefits for wildlife and, critically, monitoring the effects so we can tell whether it’s really making a difference.
– Continuing catchment research which looks at all of the water environment. Fortunately more and more people are realising that in every landscape, small waters are a lifeblood.
– and so many others….
Ponds, Pools and Puddles is available to order from our online bookstore here.
The price of bananas is set to rise permanently as a result of climate change, according to experts. This follows a noticeable absence of the much-loved fruit in several UK supermarkets within the past few weeks due to sea storms. Senior economist at the UN’s Food and Agricultural Organisation states that increasing temperatures are compounding the impacts of fast spreading diseases, including the Fusarium Wilt TR4 infection, which continues to pose an enormous threat to supply chains. Once a banana plantation has been infected with the virus, it kills the trees, therefore halting production. The infection is very difficult to eradicate once present. Increases in more extreme weather conditions, such as widescale flooding and strong winds, allow the virus to spread more easily and may be why it has now been detected across four continents.
The world’s largest species of tree is thriving in the UK due to the moist climate, and now outnumbers those in their native home of California. A study into Giant Redwoods (Sequoiadendron giganteum) has revealed that those imported to the UK around 160 years ago are growing at a similar rate to those in the US. However, as these trees are still young, they are 39% smaller than their American counterparts. Due to their sheer size, it has also been revealed that they store large quantities of carbon dioxide, with those measuring 45m tall in Wakehurst storing between 10-15 tonnes of carbon per tree. Whilst the trees are flourishing in the UK climate, there is little chance of them invading native forests as they require very specific conditions to seed.
Environment
An African project aiming to replace barren lands with wildlife-rich, biodiverse forests has restored more than 41,000 hectares of woodland in ten years. Trees for Future (TREES) is an organisation that aims to restore landscapes in developing communities, while also combating poverty. Following the launch of their mass reforestation campaign in 2015, they have worked with locals to plant tens of millions of trees across nine African countries. They also intend to create 230,000 jobs by 2030 via their ambitious initiative. Working with thousands of smallholder farmers for a duration of four years, they provide training, tools, seeds and grants to allow locals to plant biodiverse woodland and create environments that are self-sustainable for both communities and nature.
The government has pledged a £25m scheme to restore critically endangered habitats for England’s fastest-declining wildlife.In light of the recent announcement of the EU’s first nature law to restore 30% of degraded ecosystems by 2030, this government funding will help improve over 3,300 hectares of land, including 49 hectares of wetland around chalk river habitats in south-east England. The ‘species survival fund’ will also support schools, farmers and landowners across mid-Cornwall to ensure woodland, heathland and acidic grassland restoration across the moors, and help to create vital nature corridors across the Medlock Valley, with the collective aim of restoring nature and supporting iconic species such as Water Voles, waxcaps and rare Great-crested Newts.
Science
According to a new study, playing healthy reef sounds through underwater speakers could save damaged coral reefs. Fifty percent of the worlds coral reefs have been lost since the 1950s. However, scientists working in the Caribbean have revealed that simulating healthy coral reef environments through soundscape recordings may be the key to recovery. Working across three reefs, each at different stages of degradation, the team of scientists installed speakers at all three sites, but only played recordings taken from a thriving reef at one: Salt Pond reef. Results showed that, on average, 1.7 times more coral larvae settled there than on the other two sites. The rate of settlement decreased further away from the speakers, suggesting that the sounds played an important role in larval retention. Research is now underway to understand whether other coral species respond in the same way, and to find out whether the corals thrive after settling.
Air pollution levels throughout Europe have continually decreased over the last 20 years, despite increasing threats of climate change. Research conducted by the Barcelona Institute for Global Health studied 1,400 regions across 35 countries and have concluded that the two main forms of overall suspended particulate matter (PM2.5 and PM10) and nitrogen dioxide (NO2) have been falling annually throughout this period. PM10 has decreased annually by 2.72%, while PM2.5 dropped by 2.45% and NO2 levels reduced by 1.72%. Even so, according to the WHO, 98% of Europeans are living in areas with unhealthy levels of PM2.5. These tiny pollution particles are known to cause an array of health problems, and are estimated to be linked to over 400,000 premature deaths a year across Europe.
The Norfolk hawker dragonfly is no longer extinct,with the species set to be taken off the British Red List of endangered species after a large-scale population surge. Since its extinction in the Cambridgeshire Fens in the 1890‘s, the Norfolk Hawker’s small population has been restricted to the Norfolk Broads.However, in recent years they have been found in Kent, Hertfordshire, Sussex, Dorset and Devon due to an increase in suitable habitats across Britain resulting from climate breakdown. This has been the driving force behind the species recovery, however, the gaps in the current population distribution need filling to ensure the Norfolk Hawker’s long-term survival.?
A breeding population of an incredibly rare species of turtle has been discovered in India.The Cantor’s Giant Softshell Turtle is native to south and south-east Asia and has been classed as critically endangered.The discovery of a breeding female on the banks of the Chandragiri River in Kerala, however, provides hope for this illusive species. The study was led by a group of international conservationists who worked alongside local communities to record the first documentation of a female nest, and subsequently rescue the eggs from flooding. The hatchings have since been released into the river, and the team are now working closely with the local community to set up a hatchery and nursery near the original nesting site.?
Climate
Since 2000, more than a third of Antarctica’s glacier anchors have reduced in size.These anchors, or “pinning points,” are important braking mechanisms that hold the glaciers in place and subsequently reduce the rate of ice detachment from the continent. New research conducted by the University of Edinburgh suggests that anincrease in global sea temperatures is causing these points to thin at a much faster rate than previously estimated. Since 2000, 37% of pinning points have either shrunk or completely disappeared, and, as a result, the glacier’s braking force is weakening.?
Antarctica 162 – dramatic landscape by McKay Savage, via flickr.
The UK has had the wettest February on record, according to the Met Office.Between December 2023 and January 2024, the UK experienced 90% of the total expected winter rainfall. This increase in wet weather continued throughout February with some areas of the UK seeing two and a half times their normal rainfall for this month alone. These adverse weather conditions, a result of climate change, is having detrimental effects on farmers due to increased crop flooding, with some farms in Lincolnshire having been underwater since October.
Science and Environment
A 12mm long, transparent fish has been found to make a sound as loud as a pneumatic drill.Scientists in Berlin were studying the Danionella cerebrum in their lab when they began hearing strange clicking noises coming from the male fish in the tank. Upon investigation, they discovered that this miniscule species can make a sound of 108 decibels when measured at a distance of one metre away – this is roughly equivalent to the noise made by a bulldozer and is likely to be the volume at which other fish hear the sound. This noise is created by the contraction and release of the fish’s swim bladder, and it is one of the loudest noises ever discovered in a fish of this size.?
Ancient trees play an irreplaceable role in supporting forest life, according to experts.The results from a recent study in the Spanish Pyrenees show that ancient trees no longer exertenergy on reproduction, and instead prioritise stress tolerance, durability and slower growth. It has also been revealed that, over time, sections of older trees die and decay, which allows them to host more diverse and greater quantities of different species than younger trees, as juveniles don’tpossess the unique physical and physiological features to support them. Although the number of old growth trees continue to decline worldwide, researchers Munne-Bosch and Pasques hope their report will highlight the importance of our ancient trees’ ecological role.?
The government are expected to announce a move to 100% badger culling under exceptional circumstances in the coming weeks.The current policy on badger culling aims to reduce badger numbers by 70% in each cull area, however the government may increase the target to 100% in certain circumstances, subject to consultation, as of January 2026. The Government had previously stated that the cull would end in 2025 and be replaced by increased badger vaccinations, however some fear that the new 100% cull policy may become standard practice instead.
Parliament has implemented the first EU nature law to restore 30% of the EU’s degraded ecosystems by 2030. This comes into effect after recent findings reveal that over 80% of all European habitats are in poor shape, and aims to ensure the restoration of 60% of these environments by 2040, and 90% by 2050. The EU has pledged that once these ecosystems are restored, they will ensure that the area does not significantly deteriorate once morein a bid to aid the long-term recovery of damaged natural areas.
In Cull of the Wild, author Hugh Warwick investigates the ethical and practical challenges of managing invasive species to increase biodiversity. He explores the complicated history of species control over time, while also combining scientific theory and subtle humour, to explain the many issues conservationists face when trying to protect native species from their non-native rivals.
Hugh Warwick is an ecologist, conservationist and writer who specialises in the study of hedgehogs. He has published three books focusing on this species, however he recently expanded his field of study to include invasive species while writing Cull of the Wild. He has previously written for BBC Wildlife, New Scientist, The Guardian and The Daily Telegraph, is the spokesperson for the Hedgehog Preservation Society, runs courses on both hedgehog conservation, and lectures in creative writing.
Hugh recently took the time to talk to us about his book, including what inspired him to write Cull of the Wild, how he hopes his book will help future conservation methods, and more.
Firstly, what inspired you to write a book on the culling of invasive species?
The very first independent field work I did in 1986 – for the 3rd year project of my degree – took me to North Ronaldsay. My supervisor had a friend who was both the GP and the bird warden on this island, the most northerly in Orkney. He had noted that there seemed to be a correlation between the increase in number of imported hedgehogs (that was the postman’s fault!) and the decrease in breeding success of ground nesting birds – in particular the Arctic Terns. My work was to try and find out how many hedgehogs there were. This turned out to be around 500 – not the 10,000 the Daily Express had reported! The bird observatory organised an airlift to remove the hedgehogs after I had gone and I returned in 1991 to repeat the survey. Since then I have found the collision of ecological study with human concerns really fascinating.
This led me to become involved, rather inevitably, in the Uist hedgehog saga, where the RSPB and Nature Scotland were killing the hedgehogs for the very same reason they had been airlifted from North Ronaldsay. I quickly shifted from reporting on the story for BBC Radio 4, to joining the campaign against the cull, and then doing the research that helped stop it. But while all this was happening, I met a researcher from New Zealand who was telling me that they were killing hedgehogs over there (in the 1860s we sent a load of hogs over to help the colonialists feel more at home) I could see no reason not to kill those hedgehogs.
That apparent contradiction has been spinning in my head ever since and was the springboard for this book.
How did you find researching such differing opinions on the subject, and have your preconceived opinions changed over the course of writing this book?
I found this book so very different from all the others I have written. Previous outings have always been with people who are just really pleased to talk – to share their enthusiasm for Beavers or Water Voles or owls. This was the first time where I felt like the initial communication was almost like a job interview – assessing whether I was suitable to talk to. Some people simply refused to talk, others were cagey. I guess I was quite naïve!
The journey of the book is basically one where my head and my heart are in constant debate. I lay out my ‘bunny-hugging’ prejudices at the start. I suppose I was hoping to find that all instances where animals were being killed could be dealt with in other ways.
One of the biggest lessons I learnt, though, was about how people, even ones with whom you have fundamental differences of opinion, share so much common ground. But you will never see that common ground if you charge in at the difference! I love that one of my potentially conflicting interviews ended up with the biggest argument being over who recorded the best version of Sibelius’ 5th Symphony!
In Chapter 1, you discussed that animals are shown to be continually developing to become more like humans – problem solving, making and using tools etc. Do you think this gradual form of humanisation may lead to more equal ‘rights’ between animal species and humans in relation to killing for conservation?
I would not look at this as humanisation – that is slipping back into the human exceptionalism that got us into this mess. Currently the degrees of cruelty we deliver to wildlife is arbitrary, based in large part on language and on the names we give them, even different members of the same species.
We need to recognise that these animals being killed experience pain, joy, fear and hope. If the realisation that different species have the capacity to do human-like things is enough to get this recognised, then that is some progress.
I have been gently eased away from the concept of ‘rights’ for animals and towards a desire to see cruelty minimised. Rights are important and I see their value – but here, I feel the best outcomes will emerge from a utilitarian desire to maximise good and minimise bad. Though that requires we have the idea that these animals, most of whom are simply in the wrong place at the wrong time, are individuals and can suffer.
You must have visited many places and spoken to many different people about different species while you were writing this book. Were there any particularly memorable moments or experiences that that have stayed with you?
I did not get to some of the places in this book – time, Covid, money and a desire to minimise flying all conspired to keep the exotic interviews on Zoom. But the adventures I did have were all special.
Heading out along the coastline of South Ronaldsay, Orkney, with Spud – the most handsome labrador I have ever met – was magical. The wind blew, the surf crumped in from the Atlantic, and Spud, well, he followed his nose and we followed him as he tracked down evidence of Stoats.
The Stoat story is so important – it is about speed and trying catch this problem early – they were only found in 2011. But more than the practical, it is also about the buy-in of the local population. If the public are not onside, the conservationists can give up now. So it is about education and communication as much as it is about deciding which traps to use and where to site them.
In what way do you hope that Cull of the Wild will help future animal conservation efforts?
The overarching message I hope people get from Cull of the Wild is that ecology is both fascinating and VERY challenging when it is part of a conflict. Ecology is not given the level of respect that it should receive. It is always sidelined – economics and politics hog the headlines – yet both of those are but subsets of the wider ecosystem. Without a healthy ecosystem we are on a downward slope to disaster. So, I hope that people will read this book, maybe because they are outraged at the killing, and will then come away realising that ecology is very complex and should be treated with great respect.
I also hope that this book will convince people who hold very firm opinions – opinions that are often amplified by the bubbles in which we tend to linger – that people with differing views may well share many of the same values as themselves. And that to begin discussion at the common ground is the foundation of progress. Argument should not be about winning, but about making things better. Remember, it is quite possible that some of the things you know are wrong. A friend of mine turned up at a conference recently with a t-shirt saying ‘Don’t believe everything you think’. We should be humble enough to recognise we might be wrong.
Are you currently working on any other projects that you can tell us about?
As I write this, the lovely people at the publishers Graffeg are hoping I will stop promoting Cull of the Wild and finish the two books I owe them: one on bats and the other on nocturnal nature. I have another narrative nonfiction brewing – about as different to this book as imaginable. Something which will hopefully bring laughter into our love of nature.
Cull of the Wild is available to order from our online bookstore.
A new study reveals the Amazon rainforest’s worst drought on record in over half a century, with human-caused climate change acting as the driving force behind these weather extremes. The Amazon rainforest plays an important role in the removal of CO2 from the atmosphere, and accounts for around 10% of the world’s species. However, scientists suggest the Amazon could soon reach a “tipping point”, with droughts such as these expected every 13 years if global temperatures increase by a further 2°C.
Conservation
Black Rhinos have returned to Kenya’s Loisaba Conservancy as species recovers following local extinction 50 years ago. This translocation project, the result of a collaboration between Loisaba Conservancy and Kenya Wildlife Service, was prompted by the news that Kenya’s 16 Black Rhino sanctuaries are rapidly running out of space due to a boost in population numbers. Twenty-one of these critically endangered Black Rhinos were released into a specially created fenced sanctuary that covers nearly half of Loisaba’s total area, marking an important moment in the long-term future of Black Rhino populations in Kenya.
Hedgehog populations are on the rise according to BBC Gardeners’ World survey. Previous reports have found that since 2000, the number of hedgehogs has fallen by 30%-75% depending on the area due to increased habitat loss, fragmentation, pesticides, and a reduction in food sources. However, the annual hedgehog survey highlighted a 33% increase in sightings, up from 31% in 2022, which has been aided by the instillation of ‘hedgehog highways,’ and nationwide rewilding efforts.CEO of the British Hedgehog Preservation Society, Fay Vass, stated that urban populations are still lower than they should be, however these results provide cautious optimism for the future of hedgehogs.
Environment
Hailed as one of the world’s most ambitious environmental policies, Biodiversity Net Gain came into effect in England on the 12th February 2024. It is now mandatory for all new developments in England to deliver at least a 10% net gain in biodiversity or habitat on all new sites. In light of the government target of building 300,000 new homes a year by the mid-2020s, it is hoped that the scheme will minimise or mitigate the environmental effects of these new developments.
Iceland may be entering a new volcanic era, with increasing volcanic activity reported across the island. The most recent short-lived eruption on the Reykjanes peninsular marks the third since December 2023, and the sixth since 2021. Researchers think this wave of volcanic activity may be following a pattern that could last for decades, or even centuries. Scientists are trying to work out how to predict future eruptions by tracking ground inflations as magma rises, from which they can estimate when the magma will break the surface.
Litli-Hrútur – Volcanic Eruption in Iceland July 2023, by Anthony Quaintano via Flickr.
Science and discoveries
The latest strain of bird flu has decreased Great Skua populations by 75% and Northern Gannet populations by 25% in the past 2 years alone, says the RSPB and British Trust for Ornithology (BTO). According to a recent report, the H5N1 strain has been noted as one of the biggest conservation threats facing numerous seabird species across both UK and Europe. The latest Seabird Count survey, published in November 2023 – which did not take into account the effects of bird flu – found that almost 62% of seabird populations were already in decline across the UK due to other factors such as fishing and offshore wind developments.
The most vulnerable migratory species are at risk due to increased human activity, with one in five threatened with extinction according to the UN. Despite the signing of the Convention on the Conservation of Migratory Species of Wild Animals over 40 years ago, researchers suggest that more focus has been placed on preventing illegal animal trading rather than upholding the law on illegal killing. The report recommends that countries need to establish key biodiversity areas on the migration pathways of endangered species, reduce infrastructure obstructing migration routes, create corridors of protected land, and restore 30% of degraded marine and land areas.
The RSPB’s 45th Big Garden Birdwatch took place between Friday 26th and Sunday 28th January 2024. This annual event is one of the largest citizen science wildlife surveys in the UK and helps us gain an understanding of how our garden bird populations are changing in abundance and distribution over time. Over half a million people took part in last year’s event, recording a total of 9.1 million birds. House Sparrows took first place, despite a gradual 57% decrease in sightings since the first Birdwatch Count in 1979. They were closely followed by the Blue Tit and Starling.
Although the Big Garden Birdwatch has finished, there is still time to submit your results on the RSPB website by the 18th February, or by post before the 13th February. Even if you didn’t see anything, it still counts!
With birds being faced with an increasing number of challenges each year, it’s more important than ever to make your garden and outdoor space wildlife friendly. This can include installing bird feeders or tables which provide an important food source throughout the winter months when natural food sources are scarce., You can also provide clean, fresh drinking water in shallow containers such as bird baths or saucers, and install nest boxes for breeding in the spring. Also, don’t forget to regularly clean and maintain your feeders and baths as this helps stop the spread of disease. Head over to the RSPB website to find out more about how you can help your garden birds.
Robin – Catherine Mitson
Results
As usual, many of our staff took part in this year’s Big Garden Birdwatch from their gardens or local parks across Devon, and we recorded a total of 129 birds and 22 different species. Compared to last years results, there was a 31% increase in sightings, while an additional nine species were spotted in this year’s count. The most sighted bird was the Carrion Crow, closely followed by the Blue Tit and Magpie. In comparison, the county’s top birds were the House Sparrow, Blue Tit and Starling.
Sabinetook part in the event from her garden and spotted:
3 Carrion Crow
2 Wood Pigeon
1 Robin
2 Magpie
1 Blackbird
1 Song Thrush
Wood Pigeon – Oli Haines
Olitook part in the event from his garden and spotted:
3 Blackbirds
2 Woodpigeon
3 Jackdaw
2 Blue tits
1 Dunnock
1 Great tit
1 Robin
1 Magpie
1 Goldfinch
Adam took part in the event from his garden and spotted:
2 Blackbirds
6 Blue Tits
1 Chaffinch
2 Great Tits
4 House Sparrow
Dunnock – Oli Haines
Catherine took part in the event from her garden and spotted:
2 Collared Dove
2 Jackdaw
4 Starling
1 Woodpigeon
Marktook part in the event from his local park and spotted:
5 Parakeets
12 Crows
4 Magpies
10 Herring Gull
Blackbird – Catherine Mitson
Elle took part in the event from her garden and spotted:
2 Blue Tits
1 Dunnock
1 Grey Wagtail
2 Wood Pigeon
1 Magpie
1 Great Tit
Maltook part in the event from her local park and spotted:
3 Carrion Crow
1 Buzzard
Daniel took part in the event from his garden and spotted:
10 Chaffinch
7 Blue Tits
5 Long Tailed Tits
4 House Sparrow
3 Great Tits
2 Goldfinch
1 Coal Tit
1 Blackbird
1 Wren
1 Dunnock
1 Robin
Blackbird – Catherine Mitson
We’d also love to hear what you spotted if you took part – let us know in the comments below.
The RSPB:
For more information on UK garden birds, identification guides, the 2024 Big Garden Birdwatch, past results and more, please visit the RSPB website.
This adventurous and versatile book explores the wonders of our relationship with plants and our involvement with nature. Full of information on botanical science, ecological and environmental factors, artistic appreciation and philosophical reflection,Plant-Life offers a more holistic view of nature than in other books within this field. The text is supported by detailed images, diagrams and tables which provide a framework of understanding for the critical and questioning mind needed to approach biodiversity and climate change.
Author Edward Bent’s career was founded on a Botany degree from the University of Hull, followed by many years of experience spent working across different sectors, including research, marketing and education. After moving to Italy, he became a self-employed consultant and writer with many of his articles published in leading international publications, as well as a founding director of UK plant breeding company Floranova Ltd. While producing a series of botanical art compositions exploring spatial relationships in plant communities, Edward was inspired to research and write this book as a way of reflecting on his understanding of plants and the ways of nature.
Edward recently took the time out of his busy schedule to talk to us about the inspiration behind his book, why he chose to write in a journalistic style, other projects he’s currently working on, and more.
In the first chapter it says that you have always wanted to explore the beauty of plants and flowers and to share an appreciation of their world with others. How did you first develop this fascination and love of botany?
From an early age I liked to draw and paint plants and flowers to express an artistic temperament and reveal what I thought to be aesthetically pleasing. This extended to outdoor landscapes. At secondary school, I studied botany at ‘O’ and ‘A’ levels, followed by a degree course at University. During these scientific studies, significant periods of practical work allowed greater awareness of the beauty of plants and flowers and led me to make drawings. This same awareness continued through research and teaching, in parallel with a scientific frame of mind. I refer later to the influence of realising botanical compositions of wildflower communities while retaining a botanical coherence.
A dichotomous key was one of the first methods used to identify different plant species and variants through a hand lens before pictorial guides were developed. How do you think this early identification technique has affected the ways in which we observe and identify plants in the present day?
Pictorial guides to identify plant species represent a very useful shortcut, but, in many cases, just a few characteristics such as flower type, colour and leaf shape are sufficient to get the answer. While most guides also carry some detailed written descriptions, this is not commonly referred to except for professional reasons or uncertainty. The methodology of using a dichotomous key not only requires more time, but also attentive observation of far more plant characteristics. This helps develop powers of observation, or a trained eye, and better understanding of taxonomy, while providing an enjoyable sense of investigation. I believe that pictorial guides were developed to speed up the process of identification and to provide ordinary people, not just botanists, with an easier-to-use instrument.
I really enjoyed how Plant-Life touched on the relationship between botany and other disciplines such as art, poetry, maths and bio-economics. What inspired you to investigate these relationships throughout the book?
Firstly, reading Keith Critchlow’s book (see my answer to your question six), but also because of the impressions perceived of the beauty of spatial relationships in natural plant communities, through observation and realising the botanical compositions from pressed plant material. The aspect of bio-economics relates to the common denominator of chaos and complexity. Some years ago, I had also written another book that had prepared my mind to be more receptive to these relationships, and gave rise to my logo/trademark WOW – Walk on the Wild side.
When walking in the country, I always sought the big picture, since nature – of which we are part – is more than just the science. The concept of ‘Art of nature and Nature of art’ also came through in my research, strengthening the wish to break down perceived barriers between science, art and indeed philosophy. Scientific methodology works through separation, not only between different disciplines but also within them, while an examination of nature demands a more holistic approach.
What inspired you to write in a holistic, journalistic style rather than the more traditional, academic style that many ecology books demonstrate?
I think a holistic style is essential to understanding the ways of nature. It involved a strong desire to engage in artistic appreciation and philosophical/spiritual reflection on the perceived beauty of plants and wildflowers in their natural habitats. That is something I have, as long as I can remember, ‘taken aboard’ with a mixture of interest, observation and empathy. The artwork involved in the realisation of a series of botanical compositions also inspired the book and gave rise to logo, N-ART-URA – The Culture of Biodiversity.
A journalistic style in communicating information in straightforward language was obligatory after analysing big data – scientific papers, news releases, books etc – to make the writing more accessible to a wider and multi-level readership. This mission and ability stems from teaching and years of writing feature articles for the horticultural trade press and a few books. Equally, easier, pre-digested science would be unable to deal with some of the concepts and information presented in my book.
Do you think our plant life will reach a point where species will consistently be able to adapt to, and thrive within, the ever-changing environment that human activities have created?
Much depends on the timeframe. Our destruction of ecosystems can be total or partial (leaving intact corridors) and usually happens very quickly, whereas the process of plant adaptation is gradual and long drawn out. The protection and conservation of large areas of wilderness are fundamental to securing the absence of damaging human activities. Despite this, nature is programmed to fill any ecological voids that occur.
The so-called ‘generalist’ plant species adapt far more quickly to new environmental challenges, as opposed to more specialist species adapted to precise habitats, such as alpine flora . The latter have a much smaller gene pool when needing to adapt to new conditions, rendering them more vulnerable to extinction. So, the generalist species will adapt more quicky and spread more widely throughout areas of ecological disruption and damage caused by human activity.
Species distributions will become increasingly alike between different geographical areas and continents, caused by human activities – travel and transport, for example. There will be new opportunities for hybridisation, mutation and a few new species or sub-species. In a few cases, plant breeding and genetic manipulation in agricultural and horticultural crops, can ‘escape’, potentially affecting wild species from which crops were developed.
How did you develop your Holistic Notion diagram and what can this teach us about the relationship between nature and human emotions?
This diagram is central to my book and needs further development. The publication The Hidden Geometry of Nature (Floris Books) by the late Keith Critchlow was inspirational and highly informative in providing links to further thought and research. I highly recommend this important book to students and teachers of botany to give the subject a wider context.
The human mind reasons and analyses, whereas the human heart brings natural phenomena together, connecting with natural beauty; something that is impracticable in scientific study, because scientific methodology invariably needs to be separate. The Holistic Notion diagram seeks to present mathematical principles lying behind nature and the universe that translate to specific aspects of ‘being’, the substance of what we are and what we see. In holism, emotions and intuition are as important as the science in terms of understanding. Emotions stem from our interest and perception of form and substance, engendering a feeling of continuity and gratitude.
You briefly touched on the role of computers and artificial intelligence in creating ecological models that can be used to analyse data and potentially assist in the recovery of our environment. How important do you think these technologies will be in this process?
I believe that artificial intelligence and computer power will be very important in realising ecological models because of the huge amount of data and number of variables involved. What is less certain is the success of these instruments in terms of conservation or rewilding, because the whole picture can never be pinned down to one moment in time. Plant-life and nature are in constant evolution, even more so with the dramatic effects of climate change. I define nature as working through dynamic instability, choosing complementary interdependence as the means. So, recovery will depend on the progressive ‘load’ of environmental challenges on plant communities, the biosphere and the Earth system itself, caused by climate change. Just how can artificial intelligence predict these events?
Do you have any current projects in progress that you can share with us?
I am seeking ways to complete my NARTURA project by printing and publishing a series of nine botanical compositions, because earlier samples were well-received and complement the book. It requires, a printer, marketing, and distribution located in the UK. Living in Italy makes this more difficult, although I do have digital samples and plenty of ideas.
