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.

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.

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.

A potential new biopesticide, made of spider venom and snowdrop proteins, kills agricultural pests but shows minimal toxicity to honeybees, new research suggests. Learning and memory of honeybees exposed to the biopesticide were not affected, even at doses higher than they would normally encounter in the environment.

Increased soil biodiversity can reduce nitrogen pollution, improve nutrient uptake by plants and even increase crop yields, new research suggests. The two-year study found that levels of nitrogen leaching from soil with an abundant soil life were nearly 25% lower than for soil with a reduced level of soil life. Practices which enhance soil biodiversity such as reduced tilling, crop rotation and organic farming may therefore help reduce the environmental impacts of fertilisers and improve agricultural sustainability, the researchers say.

A number of policies have been developed to protect the critically endangered European eel (Anguilla anguilla). Italian researchers have developed a model of the long-term population trends of the eel to assess the effectiveness of these measures and prevent further decline of this ecologically and economically important species.

Planting a variety of crop species in rotation in agricultural fields increases the diversity of soil microbes below ground, recent research has found. This in turn positively affects soil organic matter, soil structure and aids the healthy functioning of the soil. The researchers say that rotational diversity can help farmers to grow crops in a more sustainable way that promotes soil stability.

The invasion of the American mink (Neovison vison) is linked to a shift in the adult sex ratio of the native European polecat (Mustela putorius) across its entire range, a new study has discovered. Through aggressive competition, the American mink has decreased the number of reproductive female European polecats. This is the first study to identify such an effect upon a native species across its entire range in Europe.

Insect-eating bats are estimated to be worth US$ 1 billion (€0.91 billion) a year to maize farmers around the world, a new study has revealed. Not only do bats reduce crop damage by eating adult corn earworm crop pests, they also suppress fungal infections in maize ears. Bats and their habitats need to be better protected for their ecological and economic contributions, say the study’s authors.

Ecological intensification, using land and resources in ways that minimises negative ecosystem impacts while maintaining agricultural productivity, has been proposed as a way to sustainably increase crop yields, but remains under debate due to a lack of evidence. This six-year study of a large commercial farm assessed how using land for wildlife habitat affected food crops. The study shows that it is possible to remove up to 8% of land from production and maintain (and in some cases increase) yield.

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.

Invasive alien species pose a threat to biodiversity, human health and the economy. This study describes six alien species indicators for Europe, showing that the scale and impact of biological invasions are increasing across all indicators. The societal response has also increased in recent years. The researchers say their framework could serve as a basis for monitoring the efficacy of recent EU legislation.

Grasslands cover 30–40% of European agricultural areas. Agri-environmental schemes leading to even small changes in grassland biodiversity could elicit extensive benefits. A new study on working farms in southwest England highlights the contribution of the plant diversity of the grassland to the abundance and diversity of insect pollinators and their potential to increase crop yields. The researchers make recommendations for which species to include in seed mixes.

The rise in intensive agriculture, and associated land-use change, is a major driver of biodiversity loss. This study evaluated these effects via international food trade, calculating estimates of species loss for 170 crops and 184 countries. The results show that the majority of biodiversity loss is due to growing crops for domestic consumption but that industrialised countries can ‘import’ negative impacts from tropical regions.

Wild plants closely related to crops, or ‘crop wild relatives’, contain genes that could be useful for developing resilient crop varieties and are, therefore, important for food security. This global study quantified their conservation status and availability for breeding. The researchers found major gaps in gene-bank stocks, with over 70% of crop wild relative species identified as ‘high priority’ for conservation action. The researchers say systematic efforts are needed to protect crop wild relatives for future plant breeding, including both protection in gene banks and local conservation.

A UK solar park has been found to change the local microclimate, reports recently published research. Moreover, the microclimate coupled with management activities had an impact on greenhouse gas emissions and plant-community diversity and productivity under the solar panels. The study’s authors say their research provides a starting point for considering how to improve solar-park design in order to deliver co-benefits for biodiversity and farming, and minimise any negative environmental effects.

This study is one of few to assess the genetic diversity of crops in an agroecosystem over several years. Researchers analysed the genetic makeup of oilseed rape plants within and outside crop fields over four years. They found similarity between cultivars of field plants in one year and those of feral plants (unplanted) in the following year. They also found persistence of the cultivars within the feral plants, which suggests that feral populations with genetically modified (GM) traits might result from persistent GM traits within field seed banks. The researchers say their findings could aid impact assessments of GM crops.

Agri-environment schemes (AES) have been implemented throughout Europe to mitigate against the negative effects of agricultural intensification. Although these schemes have shown positive effects on the abundance and richness of certain species and taxa, the impact of AES on reproduction of target species at the local and landscape scale is poorly understood. This large-scale study looked for the effect of selected AE measures on bumblebee reproduction. Results indicate that bumblebee reproduction is significantly higher on sown flower patches when compared to conventional management. Although the increase is most pronounced at the plot scale, higher reproduction was found in landscapes surrounding larger sown plots (at least one hectare) compared to smaller sown plots.

A new study has investigated the effects of set-aside management —when fields are taken out of agricultural production — on common invertebrate decomposers in soil. The diversity of woodlice species was higher in set-aside fields compared to neighbouring wheat fields and this effect increased in older set-asides. This study highlights the importance of set-aside areas as habitats for soil invertebrates, which are important for soil health.

The willingness of farmers to create wetlands within agri-environment schemes (AES) has been assessed as part of a new study in Sweden. Land-owning farmers and those with prior knowledge of the Water Framework Directive (WFD) were more likely to create wetlands than leasehold farmers or those with no prior knowledge of WFD. Common reasons for not wanting to take part in the scheme included the farmers’ senior age, that wetlands would not be suitable on the farm and high costs — leading the researchers to suggest that changes in subsidy payments may increase wetland creation.

Researchers have pinpointed hotspots for birds in an agricultural region of Italy. These show that hotspots for wintering birds are different to those for breeding birds — yet it is often only breeding birds’ locations that are considered in the design of protected areas. The researchers say their research highlights the importance of crop-dominated land for birds in the Mediterranean region.

Almost a quarter of the world’s non-polar land surface experiences light pollution, and there is concern that this adversely affects illuminated ecosystems. Currently there is a global move from yellow sodium lighting to white LED lighting, which emits different wavelengths of light. A recent study found that LED artificial light at night (ALAN) reduced the biomass of periphyton by 62% in a freshwater drainage ditch in Westhavelland Nature Park, Brandenburg, Germany.

Energy demand is on the rise globally, and this is predicted to continue in coming decades. Increasing energy production to meet this demand requires materials — both metals and non-metal minerals — from a number of countries. As some materials are in short supply, it is important to consider material dependency and availability when developing national energy plans for the future. This study is the first to address material dependency effects on a nation’s energy development plans, with the UK and Turkey as case studies.

A new study shows how titanium dioxide nanoparticles used in sunscreens may cause cancer in mice. Although there is no proof that the nanoparticles can cause cancer in humans, the researchers say the study raises concerns about the safety of workers exposed to high concentrations of the nanoparticles in factory settings.

A new index that condenses the overall environmental impact of pollutants at a particular site into a single value has been developed. This unique number captures the health status of the territory in terms of the risk of the pollutants to animals and plants in ecosystems, human health and the long-term fate of the pollutants in the environment.

New research compared criteria for accepting environmental risk as tools to evaluate cost-effective measures that would prevent tanker oil spills. The results suggest that the Cost of Averting one Tonne of Spilled oil (CATS) criterion is the best candidate, as it appears to be both practical and meaningful in actual risk assessments, and can lead to sensible recommendations.

Marine microorganisms responded to the Deepwater Horizon oil spill by boosting the abundance of species capable of breaking down crude oil, according to new research. This method of ‘bioremediation’ could help manage crises in deep sea environments, where other clean-up methods are ineffective.

There has been an established increase in reproductive disorders and other hormonal diseases, according to a recent European Environment Agency (EEA) report. The report documents a growing body of research that indicates this increase is influenced by growing levels of chemical pollutants in the environment known as endocrine disrupting chemicals (EDCs).

Evidence to indicate that early exposure to environmental contaminants may result in a greater risk of serious disease later on in life has been presented by researchers in a new White Paper. Measures to prevent non-contagious illnesses, such as diabetes, asthma and cancer should therefore focus on the early stages in life, including the time spent in the womb, they suggest.

A new study has examined contamination of fully grown soybean plants by two nanomaterials – nano-cerium oxide and nano-zinc oxide. The results could be concerning, as they indicate that the nanomaterials are absorbed by plants, possibly affecting growth, yield, and the fixation of nitrogen in soil, an important ecosytem service.

Endocrine disrupting chemicals (EDCs) can interfere with the hormonal systems of both humans and wildlife. New research quantifying EDCs in marine environments in Greece found concentrations which present significant risks to sediment-dwelling organisms.

A recent study has described a simple method to screen the toxicity of materials used in consumer products. Using utility meter products as examples, the study found, for example, that stainless steel and polyvinyl chloride (PVC) had high toxicity potentials and suggests less toxic, but equally effective and priced, alternatives that could be used instead.

Methylmercury may accumulate more quickly in fish as the climate grows warmer, new research suggests. Researchers in the US have found that levels of the toxin were higher in fish exposed to higher temperatures; global warming could therefore lead to increased human exposure to methylmercury through seafood consumption.

Changes in complex microbial communities known as ‘biofilms’ at the bottom of rivers can reveal the effects of pesticide and pharmaceutical pollution of river water, according to a recent study. Painkillers and anti-inflammatory drugs were found to have a significant effect on the structure and functioning of the biofilms.

Recent research has found that silver nanoparticles in sewage sludge, which is used on agricultural land as a fertiliser, can be toxic to soil microorganisms. The researchers calculated that a maximum of 30mg of silver nanoparticles per kilogram of sludge can be applied to land before harm occurs, based on typical application rates in Germany of five tons per hectare of farmland every three years.

A technique that can detect the array of pesticides bees might be exposed to has been developed in Poland. The simplicity, speed and small sample sizes required for screening makes this technique an improvement over other methods, say the researchers behind its development.

A more efficient method for sorting plastic electronics waste containing harmful chemicals is proposed by a new study. The method combines two analytical techniques that together can quickly and accurately detect levels of flame retardants in plastics used by the electronics industry.

Beetles that are helpful to farmers can be poisoned if they feed on slugs that have eaten crops treated with neonicotinoids, a new study reports. The slugs themselves are not harmed by neonicotinoids. In American field trials, researchers found that plots planted with neonicotinoid-treated soybeans contained more slugs, fewer beetle predators and had 5% lower yields. The insecticide may be reducing the beetles’ effectiveness as a natural control of slug pests.

Brown trout (Salmo trutta) embryos exposed to oestrogen during development hatched earlier, grew more slowly and had a lower heart rate than unexposed individuals, according to a recent Swiss study. These findings may indicate that oestrogen pollution in some European rivers is contributing to the decline of wild populations of such species.

Oil spills at sea can be catastrophic events, with oil and discharged toxins, including polycyclic aromatic hydrocarbons, threatening marine wildlife and coastlines, damaging healthy ecosystems and harming livelihoods. A recent study found that using dispersants moderately decreased the number of cod eggs and larvae affected by spills off the Norwegian coast.

The framework for a Europe-wide biomonitoring programme has been established by a new study. The preliminary investigation of 17 European countries showed that monitored levels of toxic chemicals varied significantly between countries. Although the levels were mostly within recognised health-based guidance values, in a few cases these values were exceeded. The researchers suggest that a fully-fledged European biomonitoring programme would help to develop policies to avert public health risks presented by environmental chemicals.

Fragments of microplastics are readily incorporated into groups of microscopic algae, altering the rate at which the plastics move through seawater, a recent study has found. In laboratory tests, polystyrene microbeads, which usually sink to the bottom of seawater at a rate of 4 mm a day, sank at a rate of several hundreds of metres a day when part of microalgae aggregates.

A novel approach for identifying and isolating anthropogenic – including microplastic – particles in fish stomachs has been devised by researchers in Belgium. The new method may enable scientists and policymakers to better assess the presence, quantity and composition of particles ingested by marine life, and improve understanding of the environmental effects of marine plastic pollution.

Nutrient leaching, the movement of plant nutrients from soil to water, can have negative effects on aquatic ecosystems due to eutrophication, which reduces the oxygen available in water, causing species and habitat loss. Ecological Recycling Agriculture (ERA), which is based on ecological principles and integrates crop production and animal husbandry, may limit this effect. This study investigated the impact of ERA on agricultural fields in Finland, showing that the practice can reduce nitrogen leaching and may help to achieve agricultural nitrogen-reduction targets.

A methodology for assessing ‘chemical footprints’ has been developed by researchers to evaluate human pressures and the impact of chemicals released by the production and consumption of goods. The study integrates a life-cycle approach with different methodologies, such as those developed in the context of environmental risk assessment and sustainability science, with the aim of assessing the extent to which chemicals impact on ecosystems beyond their ability to recover (i.e. surpass planetary boundaries).

A growing body of evidence suggests that endocrine-disrupting compounds (EDCs) are contributing to declines in fertility. This case-control study found that EDCs were associated with changes to sex hormones and risk of subfertility in men. The researchers say environmental levels of these chemicals should be reduced to protect male fertility.

Researchers have recommended that fish from some sections of the River Po and the River Lambro, one of the Italian River Po tributaries, should not be eaten due to high levels of some endocrine-disrupting chemicals in the river sediments and fish. This recommendation is based on an extensive update regarding pollution levels of such substances in the rivers.

Pesticide-sparing approaches to farming do not have to compromise on crop yields, new research suggests. A study that explored the impact of reduced herbicide use across a variety of different farming contexts found that herbicide-efficient systems could be just as productive as conventional systems — and more so than organic systems — whilst having other important environmental benefits.

Bisphenol A (BPA) is a chemical that is widespread in the environment. Researchers reviewed and critically discussed the sources and routes of human exposure to chlorinated derivatives (ClxBPA) and alternatives to BPA (BPF, BPS), as well as their metabolism, toxicity and concentrations in human tissues. The researchers suggest BPA alternatives and derivatives may have similar effects, and provide directions for future research.

Wastewaters from fruit-packaging plants may contain preservative chemicals. When spread onto fields, these wastewaters affect the way soil microbes cycle nitrogen, new research has found. Although this may impair crop growth, according to the authors, the results could also lead to the development of new substances that reduce nitrate run-off from agricultural land.