Biodiversity offset schemes do not always fully compensate for loss of habitat due to development, new research suggests. Of 66 development projects in France with offset schemes, it was found that numbers of species in offset sites was on average five times lower than in the land destined for development. Furthermore, even endangered species were not always protected by these offset sites.

Moose avoid roads during day when human activity is highest, new research suggests. Monitoring moose movements in Sweden, researchers have found that the probability of moose being near roads drops after 06:00 and only rises again at approximately 18:00.

The economic benefits of restoring natural ecosystems outweigh the costs, according to new research. The study examined the financial costs and benefits of restoring a range of ecosystems, including those found in marine, inland and coastal habitats, and concludes that in most cases the large value of ecosystem services provides a net economic benefit.

Trawling can disturb the seabed, impacting habitats and biodiversity. Results from a new study in the North Sea have shown that changes in the distribution of trawling activity – the result of fishers' choices among fishing grounds and the effects of fisheries' regulations - have greater implications for the overall state of seabed habitat than the protection that might be provided by proposed Marine Protected Areas.

Researchers have developed a new method of mapping seafloor habitats, which uses easily measured environmental properties to infer the type and extent of seafloor ecosystems. It could help in the effective implementation of the European Marine Strategy Framework Directive, the researchers suggest.

A briefing document, providing policymakers with key information on environmental impact assessments of deep-sea mining, has been published. The authors describe the Environmental Impact Assessment (EIA) process in detail to aid management and policy decisions regarding these sensitive habitats.

Guidelines to establish reserves protecting deep-sea hydrothermal vents and cold seep ecosystems have been proposed. A group of stakeholders from 14 countries have put forward the Dinard Guidelines for Chemosynthetic Ecological Reserves, to help design and manage reserves for these unique ecosystems in national and international waters.

Depositing dredged material on the seabed can significantly reduce the functioning of marine habitats, diminishing the amount of food available for fish and other animals further up the food chain, new research suggests. The author of the study calls for inclusion of this effect into environmental impact assessments of dredging.

The planned expansion of offshore wind farms in the German Bight of the North Sea will provide hard surfaces in what is currently a soft-bottom habitat. This could see an increase in the numbers of some species, such as mussels, which attach themselves to these hard structures, in turn leading to increased numbers of fish and crabs specialised to this habitat, new research suggests.

Connectivity between protected areas is vital for safeguarding many animals and plants. New research has shown that Natura 2000 sites are well connected across provincial borders in Germany, Italy and Spain. This is the result of strong coordination from central governments combined with good regional cooperation, the study???s authors conclude.

The drying of soils under global warming could disrupt the balance of nutrients in large areas of the Earth's land surface, according to new research. The study focused on ‘drylands' – arid areas with low levels of rainfall – which support over 38%% of the world's population. Such nutrient imbalances could diminish the provision of ecosystem services, such as food production and carbon storage, the researchers say.

Cities located in biodiversity hotspots can provide valuable refuges for a wide range of plants, a recent study suggests. Of the 379 plant species and sub-species recorded in the city of Ioannina, Greece, 27 were of conservation interest. Town planners can ensure that cities play an important role in supporting regional biodiversity when designing future urban developments, the researchers say.

A case study in Sweden has shown that critically endangered European eels are being lost when they are sucked into the local nuclear power station???s cooling system. A process to pump the eels back into the sea could be beneficial to this species, the researchers conclude.

Two thirds of natural areas in the Netherlands suffer from at least one of four key environmental pressures including nitrogen pollution, drying, acidification and habitat fragmentation, a new study suggests. Possible solutions to enable the country to meet its commitments under the EU's biodiversity targets include moves towards sustainable farming and reduction of nitrogen outputs, the researchers conclude.

Seagrass restoration projects could effectively mitigate climate change, capturing up to 1337 tons of CO₂ per hectare after 50 years, new research suggests. If a carbon tax system was in place, the researchers add, these schemes would likely provide returns at least equal to the initial investment needed, assuming the tax was set at an appropriate level.

The concept of the Ecological Footprint can be used to illustrate the balance between the use of a natural resource or an ecological service and its availability. According to a new study, the Ecological Footprint could be valuable as an indicator to help track progress towards the goals of the Convention on Biological Diversity.

Diverse agri-environmental schemes which combine flowering crops with semi-natural habitats, such as grasslands and hedgerows, will be best for bees, new research suggests. The researchers examined the foraging behaviour of honey bees, bumblebees and other wild bees and found that all bees used semi-natural habitats, which were particularly important for wild bees, in addition to crops, such as sunflowers.

Endangered Mediterranean seabirds are suffering from ingestion of plastic litter, a recent study has shown. Overall, 66% of 171 seabirds studied were found to have plastic fragments in their stomachs and the critically endangered Balearic shearwater was among the worst affected.

Crayfish plague, spread by invasive North American crayfish, is currently devastating native European populations. However, while the disease is commonly diagnosed on the basis of diseased animals, free-living infective spores can contaminate water bodies. In the first study to test detection techniques for this disease in natural waterways, researchers found that invasive signal crayfish release low levels of plague spores, allowing it to spread undetected.

Gold mining areas in the Peruvian Amazon rainforest expanded from under 10 000 hectares in 1999 to over 50 000 hectares by 2012, and now destroys more forest than agriculture and logging combined, new research has shown. Using high-resolution satellite imaging, researchers estimated gold mining areas to be twice as large as estimated by previous studies, which did not include the combined effects of thousands of small, mainly illicit, mining operations.

Microplastic pollution impairs the heath of the marine worms that help maintain sediments for other creatures, new research suggests. This study shows that the energy reserves of lugworms living in sediment contaminated with microplastic particles were reduced by up to 50%.

Researchers have developed a new risk assessment scheme for invasive alien species that not only predicts their direct effects on biodiversity, but also their impacts on ecosystem services. Furthermore, the scheme allows sources of uncertainty in a species??? impact to be identified, and can be applied to a range of different species.

Acidification of water bodies can have substantial impacts on aquatic wildlife, and even after chemical conditions improve, biological recovery may lag behind. A study of Swedish lakes shows that, although their chemical quality has improved as a result of international reductions of acidifying emissions, biological recovery has been much slower in some lakes.

Pollination by wild insects and honey bees improves soybean yield by 18%, new research has indicated. This equates to an extra 331.6 kg of seeds per hectare, boosting the value of the global crop by €12.74 billion. Encouraging insect pollination could therefore reduce the destruction of natural ecosystems to make way for soybean cultivation, the researchers say.

New research from central Italy shows that high nature value farmland in the region can be accurately identified by the presence of just four bird species. Once such groups of species have been identified for different regions, they can provide a quick and inexpensive tool for assessing the ecological value of farmland, the researchers say.

Ocean warming driven by climate change will reduce the amount of food reaching marine life on the seafloor, a recent study suggests. This would result in a 5.2% global reduction in seafloor biomass by the end of the 21^st century and biodiversity hotspots, such as cold-water coral reefs, will be particularly badly affected, say the researchers.

The importance of 'stepping stone' patches of habitat for biodiversity has been underestimated, a new study suggests. The researchers developed a new connectivity model, which better captures the effects of stepping stones on species movement.

A framework to combine economically viable agriculture with effective biodiversity conservation has been described in a recent study. According to the researchers, their approach provides a simple guide designed to help planners and farmers achieve sustainable agriculture.

Although cities are typically low in biodiversity, they can provide important refuges for native species, new research shows. Urban planning making use of green infrastructure can enhance city habitats and may help reduce the loss of biodiversity that follows urban expansion, the researchers say.

Offshore renewable energy sites may provide new 'stepping stone' habitats for marine species, a recent study suggests. They could allow some species to spread beyond their present range and help vulnerable creatures survive in the face of climate change. However, they may also allow harmful invasive species to spread, the researchers warn, and the effects of such projects must be assessed by examining their impacts on the ecosystem as a whole.

Trawling's impacts on marine ecosystems can be assessed using simple metrics which characterise easy-to-obtain samples of fish, new research suggests. The Portuguese study shows that groups of fish become dominated by fewer species as fishing intensity increases, while their total biomass declines. Moreover, in the most fished areas there were other noteworthy changes, such as substantial reductions in the proportion of sharks and rays.

Planting early-flowering crops, such as oilseed rape, boosts the numbers of bumblebees available to pollinate late-flowering crops, such as sunflowers, according to recent research. Carefully managing the timing and coverage of flowering crops in the landscape could therefore ensure pollination services and increase yields, say the researchers.

Conservation partnerships that span geographic, biological and administrative boundaries are needed to deal with many global environmental problems. However, there are challenges to managing these complex, large-scale programmes that involve many partners and stakeholders. A new study examines the nature of these challenges and identifies the factors that lead to partnership success.

Nine areas in the Atlantic where leatherback turtles are at higher risk of bycatch have been identified in a recent study. To help protect this important species less damaging fishing practices could be used in these areas, the study concludes, and some could be candidates for marine protected status.

Costs of defending protected areas from poaching and other illegal activities could be reduced through spatial planning software, finds a new study. Using the tool, the researchers devised new patrol activities in central Africa which would reduce current costs of law enforcement by 35%, as well as providing more effective protection.

Farmers could help to maintain populations of bees and other pollinators by sowing inexpensive seed mixes on their land, a new study suggests. Researchers surveyed pollinators visiting study plots in Berkshire, UK, and explored how sowing different seed mixes and using different management techniques affected the flowers produced and the pollinators visiting them.

Pieces of plastic litter outnumber fish larvae in the Austrian Danube River, new research has found. This is worrying, as some fish are likely to mistake the plastic for the prey they would normally feed on. This litter may also contribute to marine pollution; the researchers estimated that at least 4.2 tonnes of plastic debris enter the Black Sea via the Danube every day.

The pollination benefits of planting field margins with wildflowers can outweigh the costs of set-up and maintenance, a new study suggests. On US blueberry farms wildflower strips resulted in double the number of wild bees on adjacent crops and significantly increased yield, the researchers found.

The IUCN Red List criteria perform well as an early warning system for short-lived species threatened by climate change, according to recent research. Using the Red List criteria, the study identified Assa darlingtoni, an Australian frog, as being at risk of extinction up to 85 years before a model predicted it was likely to become extinct.

National bird conservation policies implemented in Eastern Europe in the 1990s have substantially benefited bird populations across the region, a new study has shown. Compared with the period 1970-1990, the population trends of species protected by national legislation improved during 1990-2000, particularly for those species receiving focused attention. Across the 306 species studied, the average rate of decline was much lower after protection than before. This suggests that modern conservation policies in the region were already taking effect.

Species surveys should be standardised across Member State borders to assess conservation status accurately, a new study concludes. The researchers assessed the conservation status of the Eurasian otter across the Republic of Ireland–UK border, finding that it was favourable for the whole island of Ireland. This provides a case study of surveys designed to provide data that is comparable across borders, say the researchers.

Marine protected areas (MPAs) in which fishing is prohibited contain substantially more fish, including commercially valuable species, than either partially protected or unenforced MPAs, according to a recent survey of rocky reef fish in the Mediterranean Sea. This suggests that MPAs need to be highly protected to offer the best chance of recovery for fish stocks, say the researchers.

Small mammals clearly benefit from a UK agri-environment scheme (AES), a recent study concludes. Numbers and diversity of voles, shrews and mice were found to increase on and around farmland with 6 m wide field margins and patches of semi-natural habitat - features encouraged under the government-led AES.

A new decision-making aid to identify the best type of management plan for Natura 2000 sites has been developed by researchers. Using extensive data on different facets of biodiversity and human impacts, the researchers created two indices to show where conservation measures need to be integrated with socio-economic development. This study used sites in Italy as a case study but the method is widely applicable to all Natura 2000 sites, the researchers stress.

Ash dieback in the UK is likely to lead to the extinction or decline of over 50 species which are reliant on or highly associated with this tree, including mosses, lichens and beetles, a new study suggests. The researchers recommend that the ash trees are not felled but left to die naturally and in time replaced with mixtures of species such as beech and sycamore which support similar woodland species.

How do offshore wind farms affect marine wildlife? A new study outlines a systematic approach developed for Swedish waters that could also be useful for assessing wind energy impacts on the marine environment more widely.

Managing urban green spaces to ensure that they have a good mix of tree species, including some older and larger trees, can enhance species diversity of woodland birds, a new study has shown. The study, carried out in Prague, Czech Republic, also showed that the presence of water bodies increased the number of species of woodland birds.

Ecosystems are complex and managing them effectively can mean balancing conflicting conservation goals. In a recent US study in the San Francisco Bay area researchers examine the best strategies to eradicate an invasive plant while protecting an endangered bird that uses it for nesting habitat. They find that with a clear management plan both goals can be achieved, albeit over a longer timeframe.

Increased plant biodiversity improves grassland soil quality by boosting its nitrogen levels, even in the absence of nitrogen-fixing plants, recent research has found. Previous research has shown that grasslands with higher biodiversity had higher levels of carbon and nitrogen. However, in the case of nitrogen it has been suggested that this was purely a result of increased numbers of nitrogen-fixing legumes, such as clover. This study was the first to show that, even without legumes, increased numbers of grassland species increased both carbon and nitrogen soil stocks.

Intensive trawling could turn seafloor ecosystems into ‘deserts of the sea’, new research warns. The study found that continuous bottom trawling for shrimp in a deep-sea Spanish canyon has damaged the foundations of marine ecosystems by dramatically reducing seafloor biodiversity and nutrients in sediment.