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Conservation efforts may be paying off for wild plants and insect pollinators

Since the 1990s, rates of biodiversity loss of wild plants and their insect pollinators have slowed down in north-west Europe, according to a recent study. It is likely that conservation activities, such as agri-environmental schemes, have contributed to this improving situation.




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Do agri-environmental schemes benefit insect pollinators?

Agri-environmental schemes (AES) do successfully enhance the number and variety of insect pollinators, research suggests. They are particularly effective when implemented in arable landscapes which also contain some semi-natural habitat.




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Future warming could cause trees to dominate peat bogs

Research suggests that climate change could alter the structure and function of temperate peat bogs and that these changes are primarily driven by rising temperatures, rather than periods of temporary drought. An average temperature rise above 1??C could permanently shift moss-covered peat bogs into bogs predominately covered with trees, affecting their ability to store carbon and the existing carbon stocks in them.




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Abandoned wet grasslands can be rapidly restored

Wet grasslands abandoned less than 40 years ago can be successfully restored within a decade, a recent analysis suggests. By examining the findings of a range of studies, it identified the causes and consequences of abandonment and the key factors in successful restoration.




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Restoring ecosystems likely to be economically profitable

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.




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Effective climate change mitigation in the form of seagrass restoration projects

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.




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Invasive alien species' impacts on ecosystem services: new tool to assess risks

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.




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Loss of wild pollinators could substantially reduce soybean yields

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.




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Stepping stone patches of habitat help reduce effects of fragmentation

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.




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Cities shown to shelter threatened wildlife ??? but good urban planning is key

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.




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Protected area patrol costs could be cut with planning tool

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.




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Which seeds to sow for bees?

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.




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Fishing ban enforcement is key factor in restocking fish in marine protected areas

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.




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New tool to identify best management plans for Natura 2000 sites

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.




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New tool to assess the ecological impacts of offshore wind turbines

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.




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Trawling threatens to destroy deep-sea ecosystems

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.




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Farmland biodiversity monitoring costs estimated

Monitoring biodiversity on farms is vital for conservation policies but how much does it cost? In a new pan-European study, researchers develop a standardised monitoring programme and estimate it will cost an average of €8 200 per farm to conduct. This cost could be dramatically cut if volunteer ‘citizen scientists’ or farmers help gather data for the programmes.




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Communicating biodiversity to farmers: developing the right tools

Two metrics for informing farmers about the biodiversity on their land are presented in a recent Swiss study: average species richness and farm ‘uniqueness’. These are both easy to understand and comparable between farms, the researchers say.




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New tool predicts ecosystem restoration success

A new approach to predicting whether a degraded ecosystem can be successfully restored is presented in a recent study. The researchers who developed it show how it works with the case of peatland restoration. Their method uses a computer model to link restoration success or failure with plant species and management techniques on the sites.




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Deeper seafloor habitats most at risk from bottom trawling

Bottom trawling-dragging nets along the sea floor-reduces biodiversity most severely in deeper, species-rich habitats, a study suggests. New research in the Dutch North Sea has shown that this type of trawling had less effect on species richness in shallow areas with coarse sediments. These results suggest that efforts should be made to reduce trawling in these kinds of sensitive habitats, the researchers say.




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Citizen scientists help reveal effects of roads on frogs and toads

Roads reduce the species diversity and distribution of frogs and toads, a new US study reports. The large-scale study used data from a national citizen science programme in which members of the public help monitor amphibian populations.




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More needs to be done to halt global biodiversity loss and meet Aichi targets

The Aichi biodiversity targets, set by the UN Convention on Biological Diversity, are unlikely to be achieved by 2020, a new study suggests — despite some progress towards halting the global loss of biodiversity. The authors of the study call for policy responses to be strengthened if the ongoing loss of nature is to be stopped.




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Bee and wasp extinctions in UK driven by historical agricultural changes

Changes in agricultural policy and practice, such as increased intensification and fertiliser use, are responsible for many historical extinctions of pollinator populations in the UK, suggests new research. The study looked at bee and wasp extinction rates in relation to agricultural practices since the mid-19th century.




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European migratory seabirds at risk from West African fishing

Conserving West African coastal waters is also important for conserving European seabirds, suggests new research. The study shows that both adult and juvenile northern gannets and Scopoli’s shearwaters migrate to coastal waters of West Africa for winter. However, they are at risk of death from unsustainable and illegal fishing activities in this region.




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Bees in the city: urban environments could help support pollinators

Urban areas may support higher levels of bee diversity than expected, new research has shown. The UK-wide study compared three different habitat types - nature reserves, farmland, and urban areas - and found a higher number of different bee species in urban areas than farmland. However, the overall pollinator diversity, which included species of bees, flies, hoverflies and butterflies, did not differ significantly between all three landscape types. The researchers call for more attention to be paid to the role of green spaces in cities which can be important habitats for pollinators.




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New tool developed to highlight and help prevent declines in freshwater biodiversity

Biodiversity is declining in freshwater ecosystems across the globe, a new study has shown. The researchers created a mathematical model, called GLOBIO- aquatic, which builds a picture of the threats to the biodiversity of rivers, lakes and wetlands that are posed by a variety of human activities. The most crucial of these are land-use changes, nutrient and chemical pollution, and disturbances to the water cycle — which could be from infrastructure such as dams, or from climate change. The authors hope that the model will help policymakers identify regions which are most at risk from these pressures.




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Drones can be used to study birds without affecting their behaviour — with some precautions

Drones — unmanned aerial vehicles — may be used in close proximity to bird populations without causing disturbance, finds a new study. Drones hold the potential to monitor species and areas that are difficult to reach. The authors advise that, when used with caution, drones could become a valuable tool in the monitoring of species, particularly in protected areas.




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How to ensure monitoring delivers effective, evidence-based conservation

Long-term biological monitoring is key to effective, evidence-based conservation management, new research concludes. However, greater collaboration is needed to ensure that scientists understand what kind of information is needed by conservation managers. In this way the data can deliver answers for the most important management questions.




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Volunteers can help on-going monitoring efforts of coral reefs by detecting long- term changes

Citizen scientists are increasingly playing an important role in monitoring environmental conditions around the world. There have been concerns, however, that the quality of volunteer data might not match the reliability of data collected by professional scientists. A new study has found that both citizen scientists and professional scientists were able to identify widespread decreases in the cover of live corals and increases in rubble and sand, during two long-term monitoring programmes of coral reefs. These results show that volunteers can indeed play a meaningful role in the conservation of these reefs, say the authors of this study.




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Citizen scientists successfully monitor bat populations

Bat populations are showing signs of recovery in the UK, according to a citizen science programme. The authors of a recent study which reports the programme’s findings say that this shows volunteers can successfully monitor wild species and produce robust data suitable for policy purposes.




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New Natura 2000 sites can be located using indicator species method

A new method for identifying forest sites to protect under the Natura 2000 network — as well as reviewing existing sites — is presented in a recent study. The modelling approach predicts the location of certain types of high nature value habitats using existing data on the distribution of key indicator species. The study demonstrates the method using the case of a German federal state, Lower Saxony.




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Remote penguins monitored using low-cost camera network

Scientists have successfully monitored penguins across the east Antarctic over eight years using a network of remote cameras. The research team present their results in a recent study which describes their method of remote observation as a useful, low-cost tool for monitoring a range of isolated land-breeding marine species.




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DNA barcoding strengthens biodiversity monitoring

Genetic identification of species through ‘metabarcoding’ offers a reliable, cost-effective way of producing biodiversity information for policymakers and managers, concludes an international study. The researchers show how the method can be used to help assess the impacts of environmental change and management on biodiversity.




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Using remote sensing to map natural habitats and their conservation status: key recommendations for scientists and policymakers

Monitoring and assessment of habitats is essential to evaluate biodiversity policy and improve the condition of valuable ecosystems. A new study has reviewed the value of remote sensing — using information from satellite or airborne imagery — for this purpose, and the authors make a series of key recommendations, including the importance of tailoring remote sensing output for policymakers.




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Beyond bees, butterflies and hoverflies: the importance of non-hover flies to pollination

Pollination studies have, to date, focused almost entirely on bees, butterflies and hoverflies; however, other kinds of flies also have an important role to play in this vital ecosystem service, a new study suggests. Using data from 33 farms, the researchers found that non-hover flies were in fact responsible for carrying 84% of the pollen transferred by flies between flowers in farmland.




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Invasive species: monitoring system aims to protect vulnerable Antarctic

Better monitoring is needed to safeguard the Antarctic against threats posed by invasive alien species, according to a new study. The authors developed ‘the Antarctic Biological Invasions Indicator’ (ABII) to help generate data for tracking trends in alien invasions and the measures taken to prevent them.




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Cheaper alternatives to traditional hedge laying can still reap conservation benefits

Hedgerows are vital habitats in intensively managed landscapes, providing food and shelter for wildlife. How hedgerows are managed affects their structure, with dense, woody hedges being the most valuable for conservation. A recent study has found an alternative method of hedging that is cheaper than traditional hedge laying but offers the same benefits of dense new growth and berry provision for wildlife. Use of this method could double the length of hedgerows being rejuvenated in England, the authors estimate.




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The economic benefits of carbon storage in the Mediterranean Sea

Carbon storage in the Mediterranean Sea could be worth up to 1722 million Euros a year, a new study has found. The researchers performed a combined ecological-economic assessment, finding that the sea takes up an estimated 17.8 million tonnes of CO2 every year, providing important climate change mitigation.




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Decline in bees and wasps linked to land-use changes

The declining number of bee and wasp species in England has been linked to historic changes in land-use in a recent study. Researchers say that policies which promote diverse landscapes offer more opportunities for bees and wasps to nest and forage and are best for conserving these insect pollinators.




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Protected areas that allow access to local people also benefit wildlife

Protected areas that allow local people to use the resources in a sustainable way are better for biodiversity conservation than excluding people entirely, a new study suggests. In a review of over 160 scientific studies, the researchers found that protected areas which were managed to allow sustainable access yielded greater socioeconomic benefits. Importantly, those with greater socioeconomic benefits were also more likely to report biodiversity benefits.




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Approaches to park management influence attitudes towards nature

Green spaces like urban parks can counteract the loss of plant and animal species caused by urbanisation. For many city dwellers, parks provide most of their experiences of natural spaces. Researchers have compared different methods of park management in Paris and Berlin, and assessed how they influence citizens' attitudes towards nature.




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Vegetation of coast dunes not changing due to climate change

Scientists did not observe changes in plant communities in the coastal dunes of Scotland due to climate change in the past several decades. The region’s proximity to the ocean and its patchy make-up may prevent it from experiencing rapid changes in species distribution.




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Quality of urban waterways found to affect bat populations and biodiversity

Urban waterways can provide foraging opportunities for a range of bat species. However researchers have found that bats in the UK are negatively affected by high levels of invasive plant species and urban development near waterways. The researchers highlight the value these often disregarded urban spaces can have for ecosystems, and suggest ways to improve the biodiversity of waterways.




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Speed of life linked to population decline in tuna

The numbers of fish in the world’s oceans are plummeting. Past studies have shown that populations of larger fish tend to decline more steeply. This study assessed the effects of both body size and speed of life (measured by growth rate) on population declines in the tuna family. Analysis of population trends and life history data showed that speed of life better explained population decline than body size.




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Guidelines for restoring ecosystems: when, where and how?

Chemical contamination impairs ecosystem function and reduces biodiversity. Restoration of contaminated ecosystems is important to re-establish the ecosystem services on which society depends. This study provides recommendations to maximise the success of restoration projects by considering when, where and how contaminated sites should be restored.




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What do pollinator declines mean for human health?

Human activity is transforming natural systems and endangering the ecosystem services they provide, which has consequences for human health. This study quantified the human health impact of losses to pollination, providing the first global analysis of its kind. The researchers say pollinator declines could increase the global disease burden and recommend increased monitoring of pollinators in at-risk regions, including Eastern and Central Europe.




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Fin whales exposed to high levels of potentially toxic microplastics in the Mediterranean Sea

Fin whales (Balaenoptera physalus) are likely being exposed to microplastics and associated toxic additives in the Mediterranean Sea, finds new research. The research analysed levels of microplastics and biological and chemical markers of exposure in whales from the Mediterranean Sea and the comparatively pristine Sea of Cortez, off the coast of Mexico. The results suggest that the vulnerable Mediterranean fin whale may be suffering as a consequence of microplastic pollution.




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Localised adaptation makes some oysters more resilient to climate change than others

Olympia oysters (Ostrea lurida) have been shown to adapt to local environments that are as little as 20 km apart, and these adaptations can be passed on to offspring. In this study, oysters that originated from less saline areas tended to be more resilient to extremely low saline conditions than oysters from more saline areas. Since episodes of reduced salinity are a predicted effect of climate change in the San Francisco Bay area under study, the authors say their findings could be useful for future conservation and restoration efforts.




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Research for environmental policymaking: how to prioritise, communicate and measure impact - March 2016

Up-to date scientific and technological research is vital to allow humans to adapt appropriately to our changing global environment, and current rates of environmental degradation and resource depletion. Effective research policies are essential to maintain or improve the standard of life for future populations – in Europe and globally.




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Local-scale ecological assessments contribute to conservation planning in an Italian Marine Protected Area

Assessing threats to biodiversity is necessary for effective spatial planning and balancing sustainable development with conservation. This study details a fine-scale assessment of the effect of a range of threats to coastline habitats within a Marine Protected Area (MPA) in the Mediterranean Sea. The study provides an example of how local-scale assessments can contribute to national conservation policy.