Researchers have developed a new scientific method to estimate the time lag between the introduction of an alien species and its extensive spread. For New Zealand weed species, the study estimated that the average lag was around 20-30 years. Although this may seem to be a long time, seemingly rare but fast-spreading species could become tomorrow's harmful weeds.

Restoring ecosystems in estuaries and along coasts is an important part of European environmental policy. A new analysis of degraded ecosystems has indicated that, although some restoration can take less than five years, when there has been a century of degradation, it can take a minimum of 15-25 years.

Solar panels are attractive to aquatic insects because they reflect light in a similar way to water, indicates recent research. This has ecological implications, especially if insects lay eggs on the panels. However, if panels are surrounded by white borders and divided by white grids, they are considerably less attractive to the insects.

Tradable permits can be used to conserve biodiversity by allowing habitat destruction only when a permit has been acquired through the restoration of another habitat. New research has indicated that the costs of conservation, amount of habitat turnover and time lags in restoration all influence the efficiency of the permit market.

Climate change will cause widespread biodiversity loss in Europe, but is unlikely to wipe out entire groups of closely related species, according to a new study. The researchers made their predictions using cutting edge modelling techniques to assess the impact of climate change on the "tree of life".

Pollination of intensively farmed, flowering crops could affect the pollination of wild plants in neighbouring fields, according to a study by German researchers. In their one-year study, they found fewer bees visited wild plants that are close to oilseed rape fields, although the longer-term picture is less clear. The researchers warn that increasing cultivation of biofuel crops could possibly reduce wild flower populations.

Urban planning policy has had a powerful influence on the amount of green space in cities, according to a recent UK study. It found that a change in planning policy in 2000 led to a decline in urban green space in nine cities between 2001 and 2006, although the amount of green space in all but one of the cities studied has increased overall since 1991.

Researchers have identified areas of Italy that have a climate capable of sustaining a population of tiger mosquitoes, an invasive mosquito species that can carry several human diseases. The findings also indicate how these areas will expand as the climate changes in future.

Conservation researchers have warned against acting on the findings of a previous study that argued for the eradication of several invasive birds, including the Canada goose and sacred ibis, in Europe. They suggest the results are based on anecdotal rather than scientific evidence, and that detailed feasibility studies are needed before such management decisions are made.

Global food security under a changing climate is possible if the vital role of healthy ecosystems is recognised, according to a recent study. The researchers suggest that an ecosystem-based approach must be integrated with other measures to tackle food security under climate change, to protect ecosystems and supply the essential services on which humanity depends.

Transport infrastructure and urban sprawl are increasingly dividing up landscapes in Europe, threatening wildlife. A new report has quantified landscape fragmentation across 28 European countries. To prevent further negative environmental impacts, it recommends protecting unfragmented areas, monitoring fragmentation and applying fragmentation analysis in planning.

A new study has identified several differences between two major European databases on alien species, which could be communicating mixed messages for biodiversity policymakers. Researchers recommend creating a single pan-European database to address these differences.

Preserving species and the ecosystems in which they live is highly important to the progress of biomedical research. This is the conclusion made by researchers in an analysis of biodiversity's significance, which highlights the role of animals and microbes in improving our understanding of genetics, the regeneration of tissues and organs, and immunity.

By 2090, up to 76.7 million more people in Africa could be at risk of infection by the parasite that causes sleeping sickness, according to recent research. The study predicted which areas of Africa would be at greatest risk in future.

Researchers argue that of the five mechanisms available for ensuring the provision of ecosystem services ??? prescription, penalties, persuasion, property rights and payments ??? only payments are likely to be effective at the global level. However, while a number of international Payments for Ecosystem Services (IPES) schemes exist, their impact on ecosystem services remains negligible.

An international group of researchers has proposed a new way of describing payments for environmental services (PES). The new definition supplies a framework, incorporating the social aspects of PES, which can be used by practitioners, such as governments, to design and implement a variety of PES schemes.

The Chernobyl nuclear disaster is still having an impact on local biodiversity more than 25 years after the event, according to a new study. Researchers in France and the US suggest that rare bird species have been particularly affected by the accident and that genetic changes in plants and animals caused by radiation are being passed down the generations.

To encourage protection of the environment, payments for environmental services (PES) schemes offer direct incentives to individuals and communities to maintain or improve the provision of environmental services. A recent study suggests indicators to monitor PES must be chosen very carefully to help ensure that monitoring does not cost more than the payments themselves.

A study on the effects of noise pollution from natural gas wells in the US reveals that it may have reduced the number of young trees growing locally by changing the types of animals that visit the area. However, in the same woodland environment, flowering plants pollinated by hummingbirds seem to benefit from the noise.

There is a recognised need for a more comprehensive system to observe, track and compare biodiversity across the world. Three years ago a global network was established to help reach this goal. It has identified the necessary characteristics for such an integrated system and possible ways in which integration can occur.

Loss of biodiversity may be connected to the rising incidence of allergies and other chronic inflammatory diseases, such as asthma, in people living in urban areas, according to recent research. Contact with the natural environment appears to be good for health, not only for a feeling of wellbeing, but also for boosting the human immune system.

How can ecotourism be managed so that tourists' visits are compatible with the protection of species and their habitats? In a new study, researchers developed a tool to calculate the trade-off between tourism and the protection of an endangered bird in an Austrian national park, in order to optimise conservation and visitor management.

Converting grassland to arable land can reduce the diversity of nematodes, predatory mites, earthworms and enchytraeid worms in the soil, according to a study by Dutch researchers. However, they found that restoring arable land to grassland did not fully restore the diversity of these four groups during the course of the four-year study.

Biodiversity experts working in governance and science have called for greater integration of policy sectors, geographical levels and academic disciplines, in a stakeholder workshop. This would help ensure policy decisions realistically reflect complex relationships between ecological and governance processes in order to meet future biodiversity targets.

A recent study, which assessed 100 streams across Europe, reveals that a key ecosystem process, leaf litter breakdown, is slowed when nutrient concentrations in the water are either very low or very high, has the highest potential at moderate nutrient concentrations and is inhibited in heavily polluted waters, implying that the relationship between nutrient levels and ecosystem processes, such as leaf litter breakdown, is complex. The researchers suggest that including an assessment of the functioning of ecosystem processes can make an important contribution to the overall evaluation of stream health.

Riversides that are unprotected by flood defences are home to more diverse plant communities, according to a new study. According to the researchers of the study, 'soft' approaches to flood management, which work in harmony with natural processes, could help promote biodiversity in flood-prone regions.

Reducing the extinction risk to all threatened bird species by at least one category on the IUCN Red List by 2020 would cost US$0.875 - 1.23 billion (???0.671-0.94) per year, according to a recent study. To achieve this level of support would require an additional US$0.769 ??? 1.08 (???0.59- 0.82) billion per year over and above existing conservation funding for threatened birds.

Careful choice of tree species and sites could transform plantations into refuges for woodland plant diversity, new research from Ireland suggests. Plantations of native species on or near historic woodland and those with adequate light levels below the tree canopy were found to support more plant species.

Falling levels of insect pollination are causing declining yields of important agricultural crops. However, new research from South Africa now indicates that planting small patches of native flowers in agricultural fields can be a profitable and sustainable method of increasing pollination and yield.

Human activities can have a multitude of different effects on rivers and streams, and it is difficult identify those that have the biggest impact on aquatic populations. A newly developed method for assessing ecological degradation in waterways helps deal with this problem and could provide crucial information for water managers charged with tackling the root causes of degradation.

Conserving genetic diversity is vital to allow populations to adapt in the face of changing conditions. A new study, assessing the conservation of genetic diversity of trees across Europe, has identified areas for improvement that could help maintain the genetic diversity of Europe's forests.

Reforms to reduce discards of over-quota fish catches are generally predicted to have positive effects on marine ecosystems and biodiversity. Although concerns have been raised over the impacts of the changes on scavenging seabirds who feed upon discarded fish, new research on gannets indicates that, while they often forage near fishing vessels, more than half their time is spent foraging 'naturally' in the open sea.

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.

The common ash tree (Fraxinus excelsior) is threatened by an invasive fungal disease, which is spreading throughout Europe. Scientists have recently reviewed and presented previous research into the disease which could help us understand how to prevent the spread of the fungus and develop forest conservation strategies.

Temporary ponds and their varying water levels provide the conditions for valuable wildlife habitat. A study in Crete, conducted under the LIFE-Nature project Actions for the Conservation of Mediterranean Temporary Ponds in Crete, has demonstrated these ponds contain varied collections of seeds and that these ???seed banks??? could play an important role in vegetation recovery after droughts.

The litter size of the endangered European mink is less than half of that of its main competitor, the invasive American mink, research shows. The higher fertility of the American mink may allow rapid population growth of this species, threatening European mink with extinction.

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.

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.

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.

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.

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.

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.