Planet Earth may have surpassed seven of its ‘planetary boundaries’. These boundaries are described as physical or biological systems and processes that contribute to the stability of life on Earth and its supporting functions. There are nine boundaries in total, which are considered breached when the process can no longer function – these thresholds have been reached with six boundaries, and number seven, ocean acidification, is close to its threshold. Breaching this seventh boundary would reduce the efficiency of the ocean as a carbon sink, threatening marine ecosystems and global survival.
London Mayor Sadiq Khan has launched a ten-year restoration plan to clean up London’s rivers. Inspired by New York’s Oyster project, the Mayor hopes that by encouraging Eurasian Otters, Water Voles, eels and mayflies throughout the capital, water quality will subsequently improve. Khan is also investigating the reintroduction of oysters, which were historically present in the Thames, as a means of cleaning the degraded environment.
Climate Crisis
Seabirds are having to fly further to find food sources due to the melting of sea ice in Antarctica. Researchers analysed the foraging data from over 2,400 trips made by seven South Georgian seabird species from 1992 to 2023. They found that receding sea ice in the region is impacting species like Albatross and petrels as they now have to travel greater distances in search of breeding grounds and food. The data suggests that altered patterns of food availability could impact the presence of these birds in certain ecosystems however, with sea ice at a record lows, further research is needed to better evaluate the long-term impacts on seabirds.
Young coral colonies bred using IVF technology have survived a record marine heatwave. These cultivated colonies were planted onto multiple reefs in the US and the Caribbean to restore degraded habitats in the region. Last year, the Caribbean experienced a mass bleaching event which resulted in significant losses of the reef– only 25% of older corals survived, however over 90% of cultivated corals remained healthy after the event, and researchers are hopeful that this technique may provide coral species with a greater chance of adapting to heat stresses over time.
Wildlife
The EU has made the first move toward legalising wolf culls. The proposal was put forward by the European Commission late last year, and this month member governments, including Germany and France, have voted in favour to downgrade the ‘strictly protected’ status of the Eurasian Wolf to ‘protected’ under the Bern Convention 1979. This amendment would allow the EU to revise the Habitats Directive to further ease the protection of the species, which currently permits culls only with specific authorisation in extenuating circumstances.
Butterfly Conservation have announced a ‘butterfly emergency’. This year’s Big Butterfly Count recorded the lowest ever numbers since the initiative began 14 years ago, with an average of seven butterflies per count, compared to last year’s twelve. Partially due to a wetter-than-average spring, late summer and a long-term downward trend, the results indicate a significant decline in British butterflies and day-flying moths. Butterfly Conservation has responded by urging the government to ban neonicotinoid pesticides harming these indicator species for good.
This blog focusses on forgotten species; those that are extinct, endangered or just urban, small and under-recorded. With climate change, habitat loss and invasive species threatening our native mammals, highlighting their importance is vital in driving their conservation, so we have chosen to spotlight three of the UK’s endangeredmammals, discussing their biology and characteristics, current conservation initiatives and what the future might look like for these animals.
Habitat: Freshwater, particularly streams and rivers near woodland.
Diet: Aquatic plants and grasses during warmer months, tree bark and shoots during winter. Preference for willow, Aspen, Alder and fruit trees.
Conservation Status: Critically endangered in England, endangered in Scotland.
Distribution: Free-range populations in the River Tay, River Otter and Knapdale, Scotland. Enclosed populations in Kent, Essex and the Forest of Dean. As of 2023, Scottish beavers have established 424 territories, housing up to 1,500 individuals.
Breeding: Between December and April. Birth in early summer of up to six kits, sexually mature at two years old.
Description: With distinctive orange, chisel-like teeth and a flat, scaled tail, beavers are instantly recognisable. Similar in size to a medium dog with shorter legs and a rounder body, the fur of a beaver ranges from brown to black. Once widespread in the UK, the Eurasian Beaver was historically persecuted for medicinal and cosmetic purposes. The species was hunted for fur, meat and the oil from its scent glands, resulting in extinction by the 1600’s.
Did you know? High iron content in the enamel of their teeth gives them their distinctive orange colour. This addition provides the teeth the extra strength that is required for felling trees and eating.
Conservation of Eurasian Beavers
Beavers are talented ‘engineers’, able to transform wetland and freshwater environments. Through the alteration and modification of these habitats, beavers can create complex wetlands, ponds and nurture more resilient ecosystems.Their dams provide a natural filtration system for freshwater landscapes and water quality is shown to increase as it passes through dam complexes, helping to reduce diffuse pollution in the area. Through improved water storage, beaver activities can also maintain water flow to drought-ridden landscapes, increasing the habitat’s resilience to climate change related conditions.
Environments altered by beaver presence host significantly higher diversity compared to those without. Tree felling can shed more light onto aquatic areas, encouraging growth of wetland vegetation. Feeding on larger, fleshy plants can favour smaller, slow-growing species in the surrounding habitat, leading to more abundant, diverse plant communities in the long-term. Species richness and overall abundance of small mammals, amphibians and bird species are also found to be higher in areas close to beaver dams.
After 400–500 years of local extinction, beaver reintroduction has been gathering traction in the UK. There are a number of reintroduction projects trialling their release, including the 2009 Scottish Beaver Trial in Knapdale Forest (which introduced around a dozen beavers to over four hectares of land) and the Devon Beaver Project which introduced one family group to an enclosed area in West Devon. England’s first wild project, The River Otter Beaver Trial, was founded due to the discovery of wild beavers in the region. This 5-year project observedeight family units over 28,700ha and is seeking to demonstrate the effect of beavers on other wildlife, local landscapes, water flow, water quality and local communities. Further reintroductions across the country have established both wild and enclosed populations of this keystone species.
Looking Forward
Reintroduction projects across the UK have been successful. Populations are breeding successfully and have been expanding their territories. However, there is cause for concern with the potential of conflicts to arise over land management. It is likely that, with expansion, there will be human-wildlife conflict with landowners and other stakeholders in the future. The impact of beaver activities on the environment can cause flooding of pasture, risk to crops and the felling of trees can cause harm to livestock and structures. Natural England has advised a paced approach to beaver reintroduction, minimising impacts to land use, infrastructure, livelihoods or environmental features while maximising benefits for the environment.
Habitat: Grassy banks along slow-moving rivers, canals and streams. Marshes, reedbeds, wet moorland, wetland.
Diet: Grass and waterside vegetation. Wetland plants in spring and summer. Roots, rhizomes, bulbs and bark in autumn and winter. Occasional invertebrates.
Conservation Status: Endangered in England and critically endangered in Wales.
Distribution: Found throughout mainland UK. Absent from Northern Ireland and most offshore islands. Estimated population of 132,000, range and numbers have declined by 94% from historical populations.
Breeding: March–October. Breed in spring, producing up to four litters a year.
Description: A small rat-sized rodent, the Water Vole has chestnut brown hair covering their entire body and tail, with a round nose and nearly hidden ears. This semi-aquatic rodent was historically widespread until the population saw a decline, resulting in nearly 90% reductions by 1998.
Habitat loss, degradation and fragmentation are key drivers of Water Vole declines in the UK. General infrastructure development, along with urbanisation of flood plains, have resulted in extensive loss of habitat for this species. Partnered with loss of vegetation and trampling around freshwater banks from grazing livestock, large areas of freshwater habitat are now unsuitable for voles. The unintended introduction of American Mink (Neovison vison) has also been pivotal in the collapse of Water Vole populations across the UK. Initially brought to England for fur farming, escaped mink have predated heavily on this species.
Conservation of Water Voles
Through grazing activities on grasses and rushes at the water’s edge, Water Voles manipulate their habitats, much like beavers but on a smaller scale. This manipulation can make space for a new community of wildflowers and grasses, attracting a host of invertebrate species to an area. As a valuable prey species, elevating Water Vole populations can support predators in the surrounding environment. Barn Owls (Tyto alba), Otters (Lutra lutra) and Pine Martens (Martes martes) are examples of native predators that would benefit from the repopulation of Water Voles.
A number of regional wildlife trusts have undertaken Water Vole recovery projects to support their repopulation in UK waterways. These typically involve recording and monitoring existing Water Vole activity, habitat enhancement, coordination of mink control, and in some cases, reintroduction of the species: 300 voles in the Yorkshire dales, over 600 in Essex, 200 in Gwent and over 1,000 individuals in Kielder Forest. The Forestry Commission has also pledged to make changes in Kielder Forest; improving the landscape by refraining from planting trees on river edges, providing much-needed habitat. In order to protect Water Vole settlement, the species is protected under the Wildlife and Countryside Act (1981), the UK Biodiversity Framework, and is listed as a priority species on the UK Biodiversity Action Plan.
Looking Forward
Reintroduction efforts across the UK have had mixed results. A period of growth was observed following initial releases in Nottinghamshire, which has now slowed. Overall occupancy from 2006–2018 has declined by 23%. It is thought that the continued pressure of habitat loss and mink predation is preventing populations from settling successfully. Responding to the poor establishment of Water Vole populations, recovery projects are enhancing existing freshwater habitat and building new areas to establish populations. Breeding and release sites will also be created to facilitate the successful reproduction of Water Voles in a safe environment, away from predation. In addition to habitat enhancement, more widespread mink control is also expected.
Diet: Small mammals, carrion, birds, eggs, fruit and invertebrates.
Conservation Status: Critically endangered in England and Wales, least concern in Scotland.
Distribution: Widespread and relatively common in Ireland. Populations recovering in the Scottish Highlands, some isolated populations in southern Scotland. Populations in northern England and Wales are fragmented and small. Populations estimated at 1,600–8,900 in Britain and Ireland.
Breeding: Mating season is during the summer months. One litter per year, born in March or April. Kits are fully grown at six months and sexually mature by three years old.
Description: Often confused with mink, Weasels or Stoats, the Pine Marten is a fellow member of the Mustelid family. Characterised by its chocolate brown fur and a distinctive, uniquely shaped light-yellow bib around the throat and chest, this elusive species has a long, bushy tail and large, rounded ears. Around the size of a domestic cat, Pine Marten are larger than both Weasels and Stoats and can be distinguished from mink by their chocolate coat.
Pine Marten populations underwent a major decline in the 19th century due to persecution by Victorian gamekeepers on sporting estates. Extensive habitat loss and fragmentation is another factor which contributed to the decline of these species in the UK.
Conservation of Pine Martens
The reintroduction of Pine Martens is favoured by many across the UK. The species is valued for their natural control of the invasive, non-native Grey Squirrel (Sciurus carolinensis), which can account for up to 14% of a Pine Martens diet. This predation allows the native, endangered Red Squirrel (Sciurus vulgaris) to take hold. Eradicating competition from Grey Squirrels, and reducing the risk of the squirrel pox virus, has allowed the Red Squirrel to successfully repopulate areas around Pine Marten territory.
Pine Marten reintroductions positively impact Red Squirrel populations. Image by Joachim Dobler via Flickr
The Two Moors Pine Marten Project, the South East Pine Marten Restoration Project,Back From the Brink and Martens on the Move are programmes founded to support the expansion of Pine Martens in England. A total of 35 individuals have been relocated from Scotland to the Forest of Dean and the Wye Valley, and further reintroductions are expected to take place on Exmoor and Dartmoor National Parks later this year. Other projects aim to facilitate reintroductions through the enhancement of key habitats (Martens on the Move) or to undertake surveys and monitoring to inform on species distribution (Back from the Brink).
By 2017, around 50 Pine Martens had been relocated to woodland in mid-Wales from their original home in Scotland. The population was radio tracked throughout the first year, which monitored their movement and behaviour. The group have established a viable population, breeding every year since reintroduction.
Looking Forward
The future of Pine Martens in the UK is promising. Monitoring of existing projects shows successful breeding and expansion from Scotland into Northern England. It is expected that more Pine Martens will be released in the Forest of Dean, in addition to an estimated 40 individuals to be released with the Two Moors Restoration Project in autumn 2024. It is hoped that, with further expansion, populations may link with Welsh Pine Martens, boosting connectivity and genetic diversity.
However, as populations continue to expand, there is an increasing risk of conflict. With greater human populations, greater infrastructure, and greater exposure to protected species, concerns may arise among the public. The species are known to find their way into chicken coops and pheasant pens, damaging livestock and causing conflict with local farmers. The Vincent Wildlife Trust, Natural England and NatureScot recommend sufficient Pine Marten monitoring, active engagement and open communication with stakeholders to mitigate potential conflicts before they arise.
Britain’s rarest plant has been rediscovered in Britain for the first time since 2009. Having been declared extinct after a 22 year absence, a single Ghost Orchid was recently discovered by Richard Bate who has spent the last 30 years searching for it, marking the end of the plant’s lengthy absence. The location of this rare specimen will remain concealed to protect the delicate flower from trampling and poaching, while scientists work to protect the orchid from natural predators and grazing animals.
DNA analysis is helping to eradicate the American Mink from East Anglia. This invasive species has been decimating Britain’s Water Vole and seabird populations since the 1970s, and authorities are now utilising DNA technology to manage their population. Using this key technology, the Waterlife Recovery Trust can estimate relatedness between individuals, identify how far animals may have travelled and pinpoint access routes to remove re-entry points, thus eradicating populations within the project area. The trust has successfully cleared East Anglia of this invasive species, and have seen no signs of mink reproduction in the core project area, resulting in a distinct increase in Water Vole presence.
The world’s fish stocks are in a worse state than previously thought. Research suggests that the scientific recommendations informing fisheries policy are too optimistic and that more global fish stocks have collapsed or are overfished than originally estimated. The study suggests that around a third of ‘maximally sustainably fished’ stocks are actually overfished, which can lead to phantom recoveries where declining stocks are thought to be recovering. The study calls for simpler, more conservative stock assessments and management that are quantified based on realistic models.
Wildlife
An RSPB survey has revealed a hotspot for a threatened species. Data collected from April to June across East Yorkshire and Lincolnshire has found 420 breeding pairs of Redshank on the Humber Estuary, a hotspot for these threatened birds. With a total population of 22,000, this environment holds around 2% of the entire population and is now considered a highly important area for this species of conservation concern.
A network of wildlife charities is calling for the release of beavers across the UK. Following a successful summer of breeding, the trusts have seen an upsurge in kit sightings throughout the UK, sparking a call for further management and strategy surrounding the species. These organisations are calling for the government to produce reintroduction strategies to facilitate their return across the UK and are urging authorities to allow illegally released beavers to remain in their release sites, of which there are over 1,000 in Scotland.
Environment
Countryside river testing reveals pharmaceutical pollution across the UK. Researchers from the University of York tested 54 locations and revealed contamination at 52 sites, with the most common pollutants including antidepressants, antibiotics, antihistamines and diabetes treatments, among others. The study found that rivers in the Peak District were more polluted than samples taken in London, with a total of 29 active pharmaceuticals detected in the region. This discovery marks concerns for antibiotic resistance, human health and concern for the health of freshwater organisms residing in the waterway.
Marine noise pollution is inhibiting the recruitment and settlement of oyster larvae. A study from the University of Adelaide has reported a disturbance in oyster uptake in conservation projects where acoustic technology is used to attract larvae to new settlement areas. These invertebrates use natural acoustic cues to dictate their settlement, as well as navigation, communication and predator avoidance, making them more vulnerable to changes in their soundscape. Noise pollution from shipping, construction and machinery is interfering with these acoustic cues and limiting the benefits of acoustic technology in attracting oysters to reef habitats.
Artificial light in urban areas is impacting herbivory on trees. A study in Beijing showed that tree leaves in urban environments are visibly less damaged than rural tree communities. The study found that trees exposed to greater levels of illuminance from streetlights concentrate their energy on defense by thickening their leaves and producing chemical compounds such as tannins. The results suggested that trees exposed to high levels of artificial light may extend their photosynthesis duration, thus resulting in these characteristics. Ramped up defences means that thickened leaves are inedible for invertebrates, which could have cascading effects on the rest of the food chain, leading to a harmful reduction of herbivorous insects and predatory species in urban areas.
Wildlife
A badger vaccination programme in Cornwall shows promise in helping to manage bovine tuberculosis (bTB). The farmer-led pilot was conducted over four years in Cornwall and involved mass vaccination of badgers across 12 farms with huge success – around 74% of local badgers received the vaccine, with the number of infected badgers falling from 16% to zero. With bTB highly destructive to farmers and their livelihoods, the disease results in tens of thousands of cattle being culled each year and, although large-scale assessment is needed to measure vaccination impact on disease rates in cows, this programme could substantiate calls for the government to further support community-led vaccination.
Brazil is moving forward with plans to turn the Pantanal into an industrial waterway. The world’s largest wetland, comprised of over 1,200 rivers and streams, is home to an astonishing level of diversity and supports a host of vulnerable and endangered species, including Jaguars and Giant Otters. This biologically-rich environment is at risk from the Hidrovia Project – a plan proposing to build ports, straighten river bends and dredge the Paraguay riverbed to establish a shipping route for crops such as sugar and soya beans. This development could bring about irreversible damage to the environment – disconnecting the river from its floodplain, shrinking wetland habitats and causing disruption to seasonal flood patterns – meaning extinction for many of the animals taking refuge there.
The largest outbreak of avian influenza is infecting hundreds of species across the world. H5N1, a highly contagious, deadly strain of bird flu, is threatening the world’s biodiversity after infecting 485 bird species and 48 mammal species, including Polar Bears and captive tigers. The virus broke out in Europe in 2020, where it spread to a further six continents through bird migratory pathways. This evolutionarily flexible pathogen is ravaging wild animal populations across the globe, decimating 40% of Peruvian pelicans, 17,000 Argentinian Elephant Seal pups, over 30,000 Sea Lions and 75% of breeding Great Skuas in Scotland, among others. With continuous adaptation, the virus is now able to spread directly between mammals, raising greater concerns for human health and wellbeing.
The Wildlife Trust of South and West Wales (WTSWW) is set to begin the restoration of lost rainforests in Pembrokeshire. Historically, the west coast of Britain had large expanses of temperate rainforest that were gradually destroyed over hundreds of years. Only 1% of these habitats remain, and WTSWW wishes to return these areas to their former glory, improving habitats for wildlife in the area. Currently, the 146-acre land is designated for agriculture with nearly all fields grazed, but the Trust hopes to begin planting the first seeds in 2025, with visible growth in three years.
A continent-wide survey of Antarctica’s plant life has revealed growth in previously uncharted areas. This survey provides a baseline of lichens, mosses and algae, which will be used to monitor vegetation responses to climate change and inform conservation measures in the region. Researchers employed a European Space Agency satellite to sweep the area, and combined this data with field measurements. The survey has detected almost 45km2 of vegetation in the region, accounting for only 0.12% of Antarctica’s ice-free area, highlighting the importance of these environments.
The number of plastic bags found on beaches has reduced by 80%. Since mandatory charges were introduced in the UK, data recorded by the Marine Conservation Society’s annual litter survey has recorded a marked decrease in the number of bags found on UK beaches – last year the survey recorded an average of one plastic bag every 100m, down from five in 2014. The discovery has led to calls for action to further reduce other types of marine litter.
Coral Bleaching. Image by The Ocean Agency/XL Catlin Seaview Survey/Richard Vevers via Flickr
The world’s reefs are in the middle of the most widespread heat event since records began. After 18 months of record-breaking temperatures, reefs in over 70 countries have been impacted and over 73% of reefs have experienced temperature extremes high enough to initiate bleaching. This event is the second recorded in the last ten years and is the fourth global coral bleaching event on record. Reef conservationists and researchers are urging the scientific community to rethink ways to tackle these events, and are calling for the redoubling of efforts to reduce other stressors on reef habitats.
Discoveries
Chimpanzees have been observed turn-taking during conversation. Researchers have followed five groups of Eastern Chimpanzees (Pan troglodytes schweinfurthii) in Tanzania and Uganda, recording the chatter between groups. The team recorded over 8,500 gestures used in back-and-forth conversation, finding a response time of around 200 milliseconds – the same time as observed in humans. Gestures involve hand flicking to shoo others away and stretching of hands to ask for food. Researchers believe that, in this species, gestures do the talking, while facial expressions and vocalisations add tone to the conversation.
Brazilian wild sharks have tested positive for cocaine. Previous studies have found traces of cocaine in rivers, seawater, wastewater, and smaller marine organisms such as shrimp and mussels, causing serious toxicological effects. However, the concentration observed in Rio’s sharks is around a hundred times higher than other animals testing positive for this substance. The contamination source is currently unknown but is thought to have originated from losses during shipment or the dumping of narcotics to evade authorities. Particularly worrying, the Brazilian Sharpnose Sharks (Rhizoprionodon lalandii) analysed in this study are a component of the Brazilian diet, and it is not yet known how this contamination could impact humans.
Conservation
A near extinct species of crocodile is making encouraging progress in Cambodia. In June, sixty Siamese Crocodiles (Crocodylus siamensis) hatched, following the discovery of five nests in May; a rewarding result from nearly two decades worth of conservation efforts in the Cardamom mountains. Once widespread, these animals have been subject to hunting and habitat loss, resulting in their classification as critically endangered . Since 2012, a collaborative programme by local officials and Fauna & Flora has successfully released nearly 200 individuals, helping to maintain the global population which currently sits at around 400.
Butterfly numbers in the UK are the lowest on record. An unusually wet spring and summer has dampened mating opportunities for butterflies across the country, resulting in a dramatic decrease in populations. With populations still struggling to bounce back from 2022’s drought, the wettest spring since 1986 has further prevented butterfly recovery across the country. Populations are at the lowest recorded since Butterfly Conservation’s Big Butterfly Count began 14 years ago, and as a key indicator species for habitat health, the findings are particularly troubling for the wider environment.
There has been a surge in ‘starving’ bats in Britain. Conservation groups have reported an increase in malnourished, underweight bats and fewer individuals overall for this time of year. A wetter-than-average spring and summer have negatively impacted insect, butterfly and moth populations, resulting in a blow to food sources for these animals. With nursing mothers unable to feed their young, volunteer organisations caring for bats are also seeing a surge in admissions.
Solitary Bee Week was founded in 2018 to raise awareness of the importance of solitary bee populations across the globe. Now hosted by Buglife, this week-long event hopes to encourage the public to pledge their support for these unsung heroes. Solitary Bee Week 2024 (Monday 1stJuly – Sunday 7thJuly) gives us a chance to support these vital pollinators and #EarnYourStripes.
What are solitary bees and why are they important?
It is estimated that there are between 20,000–30,000 solitary bee species across the world, and the UK is home to 240 of them. Solitary bees do not produce wax or honey, do not form hives, and do not exhibit swarming behaviours – a striking difference to the behaviours we usually associate with bees. They typically nest in underground burrows or in the hollows of plant stems and tunnels, so it is no surprise that we are seeing a downturn in the abundance of the group with increasing urban development and environmental decline.
As we urbanise, we remove the habitat of these extraordinary pollinators – we are seeing fewer hedgerows and wildflower meadows, which would otherwise provide vital food sources for these insects. Partnered with agricultural intensification, environmental changes are contributing to the significant declines we see in pollinators. Solitary bees are important for pollination, and their loss could be devastating not only to the environment, but for food security worldwide. Solitary Bee Week is helping raise awareness of these insects in the hopes of managing their threats and preventing further declines in the future.
From pollinator identification workshops to solitary bee walks, Buglife is hosting a range of events in support of Solitary Bee Week. An interesting highlight of the week, Buglife have collaborated with Hayley Herridge the Pollinator Gardener to create the ‘B-Lines Garden’ to be featured in the Hampton Court Palace Garden Festival – highlighting the importance of insect pathways to provide corridors for pollinators. Find the full week’s itinerary here.
What can I do to support my local bees?
Solitary Bee Week is the perfect time to pledge your support for local solitary bees.
Leaving an area of exposed soil and providing bee hotels are great ways to provide nesting areas. Mining bees account for around 70% of solitary species – patches of exposed soil are an excellent way to provide space for this group, where they create underground nesting burrows. For cavity nesting bees, such as Red Mason Bees, hotels are a great way to provide nesting habitat where they will lay eggs in the dry, hollow tubes. Planting wildflowers and nectar-rich plant species is another way to support pollinators by providing an important food source.
Here we have chosen a selection of products in our range that can support solitary bees in your outdoor space:
30 Days Wildis an annual challenge organised by The Wildlife Trusts which encourages people across Britain to do one wild thing every day in the month of June. This year marks the 10thanniversaryof 30 Days Wild, andthe Trusts are celebrating with more people than ever. From dining al fresco to taking part in a beach clean, there is something for everyone with this initiative. NHBS are taking part in 30 Days Wild this year, and we would like to share how our staff are exploring the wonders of nature.
Here’s a selection of things we’ve done so far:
Jo has been working hard to grow strawberries at home and has finally managed to pick the first of her home-grown fruits!
Simon has been bird watching at Slapton Sands and Berry Head in the summer sun and has found some fascinating coastal species, including Guillemots and Cormorants.
We had a wildlife hunt on our office lawn – #NoMowMay and Let it Bloom June have treated us to an amazing diversity of organisms, including a Southern Marsh Orchid, a Painted Lady Butterfly and a Little Brown Mushroom.
Oli captured a fantastic image of a female Great Spotted Woodpecker while visiting a bird feeder in his local area!
In Brixham Harbour, Simon has been spotting cetaceans and marine mammals including Harbour Porpoise and Grey Seals!
30 Days Wild has been a great way for all of us at NHBS to explore nature. The initiative is a perfect reminder to take some time outside every day, take a deep breath and to smell the flowers. Follow our journey throughout June on Facebook, Instagram and X(formerly Twitter) – stay tuned to see some wildlife drawings, leaf rubbings and a busy bug hotel!
Wildfires are threatening the unique ecosystems of Brazil’s tropical wetlands. The Pantanal encompasses the world’s largest tropical wetland and contains a UNESCO World Heritage Site. The wildfire season has arrived earlier than normal – state climate experts, and has already destroyed 32,000 hectares of land. Since the start of 2024, there have been over 1,300 recorded wildfires, and as the region moves into the dry season, dry winds and reduced rainfall increase the risk of further environmental deterioration. Brazil’s federal government has announced that it will be working with other state governments to combat the fires, emphasising preventative measures for these disasters.
Specialist pollinators in the tropical rainforests of South America are under threat from land use change. A study revisiting historic data on the baseline diversity of orchid bees in Brazil found that deforestation and intensifying agriculture has caused significant disruption in the abundance and diversity of the group. Important both economically and ecologically, this vibrant group are key pollinators of over 30 plant families in the region and play a vital role in agriculture. In 1997, Brazil was considered one of the most diverse regions for orchid bees across the globe, but this changed with significant losses of tree cover. Their loss is part of a broader picture of the Amazon’s native pollinators, and without them, agriculture and natural ecosystems could collapse. This study highlights the need for regular monitoring, allowing us to observe the impacts of destruction more clearly.
Wildfires are increasing in severity and frequency across the planet. Image by Thibaud Moritz
Exposure to toxic particles from wildfires has led to the death of over 50,000 Californians in a decade. The first study to quantify long-term impacts of chronic exposure to PM2.5 from wildfires, found that over 52,000 premature deaths were attributed to exposure and over $432 billion was spent on wildfire smoke-related health expenses from 2008–2018. PM2.5 microscopic particles can bury into lung tissue before entering the blood stream – they are associated with various health conditions and can cause heart attacks, premature birth and early death. The study has conjured a call to action for forest management and mitigation of climate change.
Conservation
After an absence of around 200 years, a small group of the world’s last truly-wild horses have been translocated to Kazakhstan. Seven Przewalskis’s Horses, one stallion and six mares, have been translocated from zoos in Prague and Berlin. Historically part of steppe grasslands in central Asia over 5,000 years ago, these animals have returned to their native Kazakhstan to improve the biodiversity of the landscape. Their dung can spread seeds and fertilise the land, and foraging behaviours can encourage water absorption in the soil. This translocation is part of a plan to relocate 40 horses to the region over the next five years. This follows a similar project undertaken in Mongolia, with nine flights of Przewalski’s Horses relocated with great success – there are now over 1,500 wild horses in the region with a stable population.
Przewalkski’s Horses are returning to Kazakhstan after 200 years. Image by Tambako the Jaguar via Flickr.
A new tool has been developed which allows conservationists to forecast coral disease. Led by the University of Hawai’i, researchers have developed an ecological forecasting technology using environmental indicators to better predict disease outbreaks in coral. This allows conservationists to intervene at the appropriate time, improving conservation outcomes for affected coral species. Coral species are increasingly threatened by pollution, human impact and climate change, yet we depend on coral-based ecosystems for many things, including medicine and coastal protection from storms and erosion. The use of ecological forecasts could prove to be critical in conserving and managing marine ecosystems, ensuring environmental resilience in the face of climate change.
Wildlife
Australia’s foxes are contributing to devastating declines of freshwater turtle populations across the country. It is estimated that 1.7 million foxes kill around 300 million native Australian animals a year, including reptiles, and have been consuming entire nests of turtle eggs and reproductive females. The Eastern Long-necked Turtle, the most common species along the Murray River, has experienced 90% declines since 1980. Nearly half of all freshwater turtle species are listed as threatened in at least one state in Australia, and with foxes found in over 80% of the mainland, the threats to the species are mounting. To counteract these pressures, the 1 Million Turtles scheme is hoping to hatch one million eggs, eventually returning the turtles to the water while overcoming data gaps for the group. The scheme is also looking at preventative measures through the construction of fox proof fences and artificial islands.
Elephants have been found to call each other by name. Image by Mandy Goldberg via Flickr
Research has shown that elephants call each other by name. This is the first recorded example of naming in wild animals that does not involve imitation, as seen with parrots and dolphins. Researchers have used AI to analyse the vocalisations of two wild herds in Kenya, identifying over 400 distinct calls. The study found that the herds were using specific sounds to address an individual, and were able to recognise and react to calls addressed to them, even reacting positively to calls from family members. Names were more commonly used by adults and were typically used over long distance or when addressing young elephants. There have been calls for further research, but this study suggests that elephants may have the ability for abstract thought.
Ambitious project in south-west Wales aiming to restore one of the world’s most important habitats is getting underway. Two species of seagrass, Eelgrass (Zostera marina) and Dwarf Eelgrass (Zostera noltii) are being grown in ponds fed with seawater pumped in from the nearby Carmarthen Bay, and over the past two years alone this project has processed 1.5 million seeds. These have subsequently grown tens of thousands of plants that are now being reinstated in the wild to help restore the UK’s underwater seagrass meadows, 90% of which have vanished in the past 30 years alone.
Seagrass near body of water during daytime by Benjamin L Jones via unsplash.
Thriving Ecuador bird tourism is incentivising farmers to turn their agricultural land into nature reserves. Ecuador is home to over 1,600 species of bird, almost double the number found across the whole of Europe. As the country’s birding tourism grows, increasing numbers of farmers are turning their agricultural land into nature reserves to help preserve their stunning local wildlife. This is not only benefiting nature, but also the country’s economy as wildlife tourism offers a much more profitable livelihood than farming, resulting in some farmers expanding their land’s potential further than any traditional farming model would have provided.
Critically endangered Devils Hole Pupfish population reaches a 25 year high. This rare species lives in the smallest known desert habitat of any vertebrate and is only found in the upper areas of a single limestone cave in the Mojave Desert, Nevada, where the whole population resides on a single shallow rock shelf. They have evolved to be able to withstand harsh desert conditions, including very high water temperatures and extremely low oxygen levels. In 2013, their population fell to just 35 individuals, but careful conservation efforts over the past 11 years have offered hope for this rare species as their population has now reached a 25-year record high of 191 fish.
Environment
The North Atlantic is set to be hit by more than double the normal number of hurricanes this season, warns NOAA. Researchers have suggested that this is predominantly due to high sea surface temperatures as a result of the upcoming transition between El Niño and La Niña which helps these storms grow more easily. Although there is no evidence showing that climate change is a contributing factor, it is likely to exacerbate the severity of these weather patterns. Contrastingly, NOAA have predicted a below-normal hurricane season for the central Pacific region where El Niño and La Niña work in opposition.
Hurricane Matthew hits Haiti by NASA Goddard Space Flight Center’s photostream, via flickr.
Purbeck Heath begins its transformation into an ancient savannah habitat to help precious species thrive. The National Trust’s lead ecologist for Purbeck, David Brown, explained that the project hopes to use domestic grazers such as wild cattle, pigs, ponies and deer to mimic their wild ancestors and shape the 1,370 hectares of open grassland in Dorset into a dynamic, complex and biodiverse ecosystem. Purbeck Heath is already one of the most diverse areas in the UK, and this project will aid the recovery of rare and threatened species such as Purbeck Mason Wasps, Heath Tiger Beetles and Sand Lizards.
Climate
Increased ocean temperatures are undercutting the Thwaites Glacier and causing glacial melt from below. This glacier is currently losing 75 billion tons of ice per year, accounting for nearly half the total ice lost from Antarctica per annum. Scientists have revealed that an estimated 150 million kilowatts of thermal power are injected into the ice with each undercutting intrusion, which could melt 20 meters of ice off the bottom of the glacier each year. Recent simulation to assess the effects saltwater invasion may have on retreat rates has revealed it could double the overall rate of ice loss for some glaciers.
22-01-21 04 Thwaites Glacier by Felton Davis, via flickr.
New research reveals the catastrophic effects of extreme heat, deoxygenation and acidification in the oceans due to fossil fuels and deforestation. In the top 300 meters of affected oceans, these compounded events are lasting three times longer and are six times more intense than in the 1960s. A fifth of the world’s ocean surface is susceptible to all three of these stresses at once, which has been further exacerbated in recent decades as extreme weather conditions have become more intense. Scientists warn that the extra CO2 absorbed by the oceans has increased the temperature and acidity of seawater, is dissolving the shells of sea creatures and starving the ocean of oxygen. This series of events is comparable to those experienced at the end of the Permian period 252 million years ago when the planet experienced the largest known extinction event in its history.
Unusual spring weather is affecting bird migrations. The Wood Warbler, Redstart and Pied Flycatcher migrate from sub-Saharan Africa to British oak woods every spring and depend on Oak Moth caterpillars to feed their young. In recent years, these caterpillars had already emerged and were pupating by the time the birds arrived, resulting in their chicks starving. This year, however, they are facing a new issue: as spring has been so wet and cold, many birds have not reached Britain yet, while those that have are having to search for food in cool weather and have not begun nesting. These shifts in long-term weather patterns are likely to continue to cause migration issues going forward due to their unpredictability.
The final Venezuelan glacier has been downgraded to an ‘ice field’ following large-scale glacial melt. This follows the loss of at least six other glaciers across the country in the last century due to an increase in global temperatures. In March 2024, researchers revealed that the Humboldt glacier had shrunk from 450 hectares to just two hectares. More recent observations show that, in the last two months it has reduced in size further to the area of just two football pitches. The latest projections suggest that between 20–80% of glaciers worldwide will be lost by 2100 as a result of climate change, with some of this loss already inevitable despite attempts to combat climate breakdown.
Environment
New record of Asian Hornet sightings threatens native pollination species. While Asian Hornets aren’t yet established in the UK, recent flooding and warm temperatures are increasing the risk of this species spreading across the country. Defra has warned that early detection and irradiation is the key to saving our native pollinator species who are known to feed on Honeybees. Since 2016, there have been 108 sightings of Asian Hornets, 56 of which were recorded last year alone. A further eight have been reported in the UK so far this year. Kent is on the front-line of the battle against this species with many of the UK sightings recorded in this county.
Pioneering project that makes eco-friendly concrete from crushed shells may be the answer to extreme flooding. A team at the University of Central Lancashire has developed an innovative, sustainable, permeable concrete made from recycled crushed scallop and whelk shells that would otherwise go to landfill when discarded by fishmongers. Trials are being undertaken in Blackpool to assess its effectiveness in gardens, footpaths and car parks, and early results are very positive.
Over 8,000 hectares of land ‘left to nature’ to increase biodiversity. This restoration project, run by Forestry England and supported by both Forest Holidays and the Government, will be implemented in four areas across the UK: Castle Neroche, Somerset; Kielder Forest, Northumberland; Newtondale, North Yorkshire and Purbeck, Dorset. The project aims to minimise human involvement, allowing nature to shape these forest landscapes itself. Andrew Stinger, The Head of Environment at Forestry England, stated that, although the team is uncertain how these areas will evolve once human activity is reduced, they are confident they will become more biodiverse with the help of reintroduction initiatives, aid flood mitigation, improve air quality, and restore soil health.
Science
Sea Otter by Bureau of Land Management California, via flickr.
Study reveals that female Sea Otters are using tools to help preserve their teeth. Researcher Chris Law documented the moment that a female Sea Otter used a rock anvil to open the shell of its next meal, a type of behaviour which has previously been witnessed in very few animals. Further investigation revealed that, when there’s a decline in their preferred food, female Sea Otters have evolved to use tools to allow them to overcome their weaker biting ability when compared to their male counterparts, which allows them to consume alternative, larger prey without damaging their teeth.
