bio news – Hoopoe – A blog by nhbs

This Week in Biodiversity News – 2nd June 2025

Wildlife

Poole Harbour’s osprey pair have hatched their fourth chick of the year. The only breeding pair of ospreys on the South Coast have laid a clutch of four eggs for the second year running, and the Birds of Poole Harbour charity has announced that the final chick successfully hatched in the past week. In 2022, female CJ7 and male 002 became the first nesting pair on the south coast in 180 years as part of a reintroduction scheme.

Golden Eagle (Aquila chrysaetos) by Birds of Gilgit-Baltistan, via flickr.

Golden Eagles are spreading their range from southern Scotland into England. Around 50 Golden Eagles have been translocated across Scotland since 2018 in an attempt to save this species amidst major population decline. In the past 7 years, South of Scotland Golden Eagle Project (SSGEP) have successfully translocated 28 juveniles and 15 sub-adult golden eagles from the Scottish Highlands to the Scottish borders. Satellite tagging has revealed that a number of birds are beginning to venture into Northumberland, the North Pennines, the Lake District and even as far south as Lancashire and Yorkshire, offering hope for the future reintroduction of Golden Eagles into England.

Environment

Reservoir projects fast-tracked in an attempt to secure England’s water supplies. Two major new reservoirs in East Anglia and south Lincolnshire have been fast-tracked through the planning process as they are now declared as ‘nationally significant.’ As such, the final decisions for these projects will be taken by Environment Secretary Steve Reed, rather than at a local level, with the aim of securing water supplies for future generations. These stores would provide resilience to future droughts in particularly dry areas of the country where water demand is high, and may be completed by 2036 and 2040 respectively. The water industry has welcomed this announcement, but some communities are concerned about increased bills, as well as the potential clearing of homes and farmland to make way for the necessary infrastructure.

Howgill Fells by Robert J Heath, via flickr.

Areas of common ground in the Yorkshire Dales are being restored to their ancient glory. A groundbreaking tree-planting programme is uniting farmers and rewilders alike to bring species back to ‘ghost woodlands’. Howgill Fells had been heavily grazed for hundreds of years, but in just over a decade, an extensive rewilding project has planted 300,000 native trees across common land in 64 acres of sheep-free enclosures. Ecologist Mike Douglas recently conducted his first of four annual surveys monitoring birds in the enclosures. His results have revealed the presence of 11 new breeding bird species since his original survey in the early stages of the project in 2016, and numbers continue to increase year on year.

Policy

Labour have rejected a proposal to provide every new home with at least one swift brick to help endangered cavity-nesting birds. The proposed amendment to the governments Planning and Infrastructure bill requested that every developer provides a single £35 hollow brick for swifts, house martins, sparrows and starlings in every new build home. This was previously supported when it was tabled on Conversative government legislation in 2023, however the current Labour-dominated committee have now stated they are not convinced it is the right approach. A petition calling for these bricks to become mandatory has now reached 80,000, demonstrating the public’s concern on the matter.

Pacific Swift by Stuart Price, via flickr.

Nature-friendly farming fund to be cut in UK spending review. Labour initially promised £5 billion over two years for the post-Brexit farming fund, which will be honoured until 2026, however in the years following it will be slashed in line with wide-scale budget cuts. This nature-friendly initiative replaced the EU’s Common Agricultural Policy and rewards farmers for stewarding nature, soil, and other public goods, rather than solely for land ownership and cultivation. While DEFRA have stated they are planning a new scheme aimed at smaller farms, many larger-scale ones will miss out on these incentives.

This Week in Biodiversity News – 19th May 2025

Wildlife

A mosquito-borne disease has spread to the UK and is now affecting wild bird populations. The deadly Usutu virus was first detected in southern Africa over half a century ago and spread to the UK in 2020. Blackbirds are specifically susceptible to the virus, with mass die-offs occurring as a result of the disease across Europe, and it has recently spread across the UK as far as Dorset and Cambridgeshire. Scientists are now monitoring the spread of the Usutu virus amid concerns that climate change may turn Europe into a breeding ground for its host species, mosquitoes, therefore exacerbating the reach of the disease.

Male blackbird (Turdus merula) perched on a branch by hedera.baltica, via flickr.

Scientists warn about numerous new threats affecting bee populations. A study from the University of Reading has highlighted that war zones, microplastic and air pollution are posing some of the greatest threats to our pollinators. An increase in worldwide conflict has forced countries to grow a smaller variety of agricultural crops, leaving pollinators without a diverse range of food sources throughout the year, whilst investigations into air pollution has revealed that is affecting the survival, reproduction and growth of our key pollinator species. Researchers also tested 315 honey bee colonies and found traces of microplastic contamination within most hives. Professor Simon Potts, the lead author of this report, stated that identifying these news threats and finding ways to protect pollinators early is the key to preventing further population decline.

Extinction risk

‘Vulnerable’ cockatoo species facing further habitat loss due to bushfires. Conservationists have warned that the planned burning of 13,000 hectares of forest in East Gippsland, Australia, may jeopardise declining Glossy Black Cockatoos populations. 64% of this species habitat was burned in the 2019-2020 black summer bushfires, resulting in the population becoming wholly dependent on the 48,000 hectares of unburnt coastal forest around Lake Tyers. Glossy Black Cockatoos feed almost exclusively on the cones of black sheoak trees, which are often subject to planned burning programmes. Australia’s biodiversity, wildlife, and habitat are currently under threat from bushfires, prompting ecologists and nature campaigners to highlight the urgent need for careful management, especially with Victoria’s cockatoo population now estimated at a mere 250.

Glossy Black Cockatoo by Merryjack, via flickr.

Welsh Celtic rainforests under threat. A 2024 survey investigating the ecology of Welsh rainforests has revealed that only 22% of the temperate rainforests found in this area are in ‘good’ condition, with many others under threat due non-native species, storms and inappropriate grazing of livestock. These rare habitats are only found in isolated areas across the world, including the Woodland Trust’s Coed Felenrhyd near Gwynedd, however it is vital that the remaining 33,024 hectares of rainforest left in Wales are protected. Natural Resources Wales manage seven Celtic rainforest reserves in the Meirionnydd area, and have now stated that these ‘exceptionally important sites’ need conservation and landscape scale management to ensure their preservation.

Climate change

The worlds coastlines are still in danger even if climate targets are met. Even if the world achieves the ambitious goal of limiting global warming to 1.5°C, researchers project that sea levels are still likely to rise by several meters. New investigations into how ice sheets respond to future climate changes suggest that even with stabilized global warming, this rise may not slow down. A major concern is that melting could accelerate past a viable ‘tipping point’ due to intensified warming from human activity, though scientists are yet to pinpoint this critical threshold. The consequences for coastal communities would be catastrophic, as approximately 230 million people currently live within one meter of high tide lines.

This Week in Biodiversity News – 5th May 2025

Wildlife

Captive-bred axolotls have successfully adapted to the wild, offering hope for the future of this critically endangered species who have been on the verge of extinction for nearly two decades. In an attempt to trial their reintroduction, scientists have recently conducted a study involving the release and monitoring of 18 captive-bred axolotls into Lake Xochimilco and its neighbouring artificial wetland. Volunteers tracked their movements for roughly 40 days, and the results of this study have revealed that not only have all 18 individuals survived, but those that were recaptured for monitoring have gained weight, suggesting they have successfully adopted natural hunting behaviours. Whilst this study has revealed that species reintroduction is a viable option, ecologist Luis Zambrano has stated the team’s first priority is to improve habitat conditions for axolotl’s already living in the wild.

Ambystoma mexicanum by Ruben Undheim, via flickr.

The only breeding pair of Ospey in southern England have laid four eggs for a second year running. The Osprey reintroduction programme began in Poole Harbour in 2017, and in 2022 female CJ7 and male 022 became the first nesting pair recorded on the south coast of England in 180 years. With the eggs expected to hatch at the end of the month, the Birds of Poole Harbour group have stated that a repeat of all four eggs successfully hatching would be a very promising outcome for their recolonisation, however every hatchling should be celebrated.

Science and Environment

A government grant from the Nature Restoration Fund is set to facilitate the eradication of American mink from the Outer Hebrides. Over 2,000 individuals have been captured since the Hebridean Mink Project began in 2001, and in 2018 it was thought that their population had been reduced to a level that was no longer functional. However, data has revealed that 20-30 mink are still trapped annually. The Scottish Government’s grant will enable the installation of more traps, ensuring the eradication of this invasive species from the islands and supporting the recovery of ground-nesting birds and other native wildlife.

American Mink Huron Wetland Management District South Dakota by USFWS Mountain-Prairie, via flickr.

Policy

Sandeel fishing ban remains in place in the North Sea. Sandeels are a vital source of food for a wide variety of the UK’s marine life and coastal sea birds, and in early 2024 English and Scottish authorities implemented trawling bans due to concerns about declining populations. The EU have now challenged this ban, arguing that the motion was ‘discriminatory,’ ‘disproportionate’ and could threaten commercial sandeel fishing in Denmark. Several key organisations including the RSPB and DEFRA have since advocated for the measure to remain in place, and judges have ruled that there is no legal obligation to reverse this order.

Sandeel in seabed by Crown Marine Scotland, via flickr.

Housing developers in England may be able to build on protected green spaces without needing to replace nature lost locally. The proposed Planning and Infrastructure bill could allow developers to pay into a fund for off-site habitat creation, potentially outside the local area, or even in a different county. While the Labour government aims to streamline development to meet housing targets, concerns are growing that this could harm poorer rural communities and lead to a “cash to trash nature” system, undermining local access to nature and potentially ignoring crucial environmental protection.

Pollution

UK is falling behind on its commitment to reduce microplastic pollution. Scientists have revealed that these pollutants continue to infiltrate our food sources, ecosystems and bodies. Researchers are now warning that the UK is falling behind both Europe and the US in the introduction of enforceable targets on microplastic in wastewater and drinking water. As a result of this, they are now encouraging ministers to develop a comprehensive approach to reduce plastic pollution, whilst also providing funding for vital research into safe microplastic exposure thresholds.