The post Global forest network cracks the case of tropical biodiversity appeared first on Smithsonian Insider.

White-tailed deer don’t like to eat the invasive plants Japanese stilt grass, garlic mustard or barberry. Native oak seedlings and tulip poplar, on the other […]

The post Too many hungry deer are lowering diversity of native plants in eastern U.S. forests appeared first on Smithsonian Insider.

According to a new study by biologists at the Smithsonian Migratory Bird Center and Virginia Tech the offspring of a certain songbird, the wood thrush, […]

The post Study: Large shady forest plots essential to survival of post-fledgling songbirds during drought appeared first on Smithsonian Insider.

Biotechnology has the potential to be a part of the solution in protecting forest trees against destructive pest and disease outbreaks

The lack of clear international regulations is putting ???animal forests??? at risk, a recent analysis concludes. The research examined threats to these important seafloor habitats, and suggests that collective responsibility and coherent ecosystem-based management are needed to prevent their loss.

According to new research, improved communications and financial assistance could encourage private forest owners to engage more willingly in forest management. Personal economics, moral obligations, traditional ideas of how a forest should look and fear of forest fires were found to influence whether forest owners participate in management activities.

Millions of years ago, Africa's savannas were covered with thick, ancient forests, which disappeared and turned into the grassy ecosystems that they are today.

read more

Forests can play a critical role in the mitigation of climate change, but at the same time, climate change is threatening the health and condition of forests. Therefore their protection and adaptation is essential. The EU has adopted a green paper on 'Forest protection and information in the EU: preparing forests for climate change'. This special thematic issue provides current information on the dynamics and relationships between forests and climate change and insight into the role of forest management and ecosystem services in protecting EU forests.

During heatwaves, forests initially have a warming effect on surrounding air temperatures. However, in the longer-term they have a cooling impact, according to a recent study. This new information about plant contributions to temperatures will help further improve climate modelling.

A new study based on high-resolution satellite observations of forests suggests the 'albedo', or reflectivity, of a forest needs to be carefully considered in afforestation schemes designed to mitigate climate change, i.e. carbon balance alone is not a good indicator of mitigation value. The authors argue that the Kyoto Protocol carbon accounting rules grossly overestimate the cooling caused by afforestation, because they do not consider albedo effects.

Putting a price on carbon emissions from deforestation is unlikely to prevent tropical forests being cleared for palm oil production, according to a recent study. Additional measures should be included in climate policies to protect forests from increasing global demands, such as biofuels.

Deforestation in the tropics is being driven by people moving from villages to cities and the global demand for agricultural products, according to a recent study. The researchers suggest that forest conservation policies which target small landowners should be extended to also target industrial-scale, mechanised farming if such initiatives are to be effective.

A new study has highlighted the regional variation in the impacts that climate change may have on European forests. In northern and western Europe there may be positive effects on forest growth, whilst increasing drought and fires in the Mediterranean could damage forests.

A recent study has assessed how climate change could affect the impact of European insect pests on forests to help develop effective forest protection strategies. Changing temperatures may cause some populations of insects to grow or move into new regions of Europe.

A new analysis of temperate forests has estimated that, on average, tree-felling and the removal of tree biomass reduces carbon levels in the soil by 8 per cent. The reduction is greatest in the forest floor layer where about 30 per cent of carbon is lost.

Large imports of low-cost Russian wood to Finland up until 2007 increased pressure on Russian forest ecosystems, whilst reducing harvest pressure on Finnish forests and those of other European countries that consume wood-based products made in Finland, according to research. This highlights the need to take the international dimension of environmental impacts into account when designing sustainable production and consumption policies.

Bats can adapt to certain changes in habitat that threaten their preferred roosting sites. A new study from Poland shows that bats will widen their criteria for selecting roosting sites if forest management practices limit their preferred sites. However, experts recommend that small patches of old growth forest suitable for bat roosting are maintained as the bats in this study did not adapt to young woodland.

Although national and European policy supports the importance of outdoor recreation, there are few binding commitments for action, according to new research. In particular, monitoring of recreation in forests is rarely mentioned in national policy and the study suggests comparable European data could inform firmer decision-making.

A recent paper suggests that the Forest Stewardship Council (FSC) certification scheme has not reduced deforestation, as originally intended, but acts instead as a market governance tool, which may become a barrier to international trade. However, it may develop a conservation role in conjunction with market initiatives which value ecosystem services, such as carbon sequestration through the Clean Development Mechanism.

Reducing forest fire risk within a tight budget can be successfully achieved, according to researchers. The study simulated the economic and fire risk effects of five management plans and found that a combination of removing low level trees and selective positioning of woodland produced the most economic and least destructive results

National Forest Programmes (NFPs) aim to incorporate the views of a wide range of stakeholders into the management of national forests. However, an analysis of NFPs in Bulgaria and Germany found they had little impact on forest policy. Despite this, stakeholders who took part in the NFP negotiations welcomed the opportunity to contribute to the policy-making process, even though they realised they may have little impact.

A new international policy regime for sustainable forest management may complicate matters rather than provide solutions, according to a new report. It suggests there should be better co-ordination of existing hard and soft policy options and between the numerous organisations involved in forest management.

New research highlights that potential to use forest materials as bioenergy to reduce greenhouse gas (GHG) emissions from fossil fuel use must be balanced against the role played by forest stocks as carbon storage facilities.

An innovative reforestation technique has been used successfully to restore patches of forest in an area of Sardinia where traditional reforestation methods have previously failed. It was the first time the technique, known as the Miyawaki method, has been used to restore forests in a Mediterranean region.

Annual maps of forest cover in Indonesia reveal that, between 2000 and 2008, almost 10 per cent of forest cover on the islands was lost. Around one fifth of this loss occurred in regions where logging is restricted or prohibited. The new maps will help Indonesia meet the objectives of the UN REDD+ programme, which aims to reduce deforestation and forest degradation.

Countries that appear to have reduced greenhouse gas (GHG) emissions through reforestation may have simply “displaced” the emissions to another country, by increasing their imports of food, timber and wood. A new EU study highlights the need to recognise this ‘loophole’ in ongoing emission targets.

The only way to establish a long-lasting and effective strategy for forest management is through collaboration between ‘conventional’ scientists and local experts, according to new research.

A new study suggests that, although the global terrestrial carbon sink remained relatively stable from 1990 to 2007, the effects of tropical forests were virtually neutral because CO2 emissions from deforestation offset their carbon sink.

International trade in wood and wood products affects forest stocks around the world. A recent study examines the relationship between changes in forest cover and international timber trade at global level. If finds that some wealthier nations with low population density can maintain forest areas while exporting wood; but other, usually poorer, nations, are losing forests through domestic and global demand for wood.

The increased density of forests has been responsible for substantially increasing sequestered carbon in Europe and North America over the past 20 years, according to a recent study. The researchers suggest that managing forests for increased density offers one means of increasing carbon stocks.

According to a new analysis by Swedish researchers, action to reduce the impact of several serious forest diseases is typically taken too late. The researchers call for better communication by biologists of how and why diseases spread, to help minimise economic and ecological losses.

Inhaling smoke from forest, grass and peat fires causes about 340,000 premature deaths worldwide every year, according to new research. Reducing the number and extent of human-induced landscape fires could significantly improve air quality, mitigate climate change and reduce the rate of biodiversity loss, say scientists.

Adapting to climate change is essential to the sustainable management of forestry but it needs to be grounded in current scientific knowledge. A recent US study has brought together scientific experts and forestry managers to ascertain some general adaptation strategies for the future.

A new study has identified the factors that cause deterioration of Mediterranean pine plantations, to develop a model of that can predict the risk of forest decline to help inform forests management strategies under a changing climate. It suggests that loss of needles is the most useful predictor of decline for the species studied.

Over 20% more carbon could be being released by tropical peatlands than previously estimated, a new study suggests. The research highlights the large quantities of carbon lost to rivers from deforested and degraded peatlands in Indonesia, in addition to carbon released as CO2 gas.

Woodlands in the grounds of old manor houses or castles can provide high quality habitat for numerous forest species, a recent study from Estonia concludes. The researchers found that, compared to nearby forests, old rural park woodlands appeared to be better at supporting biodiversity.

Forests may need to be converted to more drought-tolerant mixtures of tree species to prevent significant die-off under climate change, predicts a new study which modelled German forests. The researchers indicate that climate change is likely to lead to significant forest damage, which could be reduced through adaptive management.

Forests play an important role in both mitigating and adapting to climate change, although current policies tend to isolate the two approaches. A recent study suggests that mitigation and adaptation are complementary and linked, and that forestry management that integrates the two can successfully provide both of these important services.

The impacts of drought on European trees are of high concern, especially under a changing climate. New research has indicated that, if summers become continually drier, sensitive species, such as larch and spruce, will suffer reduced growth in some Alpine areas. This could potentially compromise ecosystem services provided by forests in these areas.

Using open-access software and power saving technologies, researchers have developed an easily deployed, low-cost network for monitoring large areas of the Amazon rainforest. This Peruvian study shows that environmental information, such as soil moisture and rates of photosynthesis, can be recorded and uploaded to the internet without having to make repeated visits to remote areas.

A reforestation project has revitalised its surroundings just 80 years after its inception. In the late 1920s, the Saldaña badlands in northern Spain were a barren region, with a thin layer of intensely weathered soil, and only 5% vegetation cover. Now that cover has increased dramatically to 87%, the soil quality is improving, and the water flow in the area has stabilised, bringing greater environmental security to the local community.

Understanding the social context of Swedish forestry is key to understanding how the sector could be persuaded to move beyond ‘business-as-usual’ practices, to prepare for future climate risks, argues a new study. Using an approach that provides insights for future behavioural change more widely, the researchers explore the influences on forest managers’ behaviour, and highlight certification schemes as one important driver of actions which make forests better adapted to climate change. Knowledge on climate change risks and actions in itself is not enough to change behaviour, the study finds. For many environmentalists it may seem ‘logical’ for forestry to adapt now to future climate change: it epitomises an industry where actions taken today will determine long-term development, given that trees will not be harvested until 70–90 years after planting. However, the sector has taken limited actions to adapt, despite an abundance of available information on the impacts of climate change — such as storms, drought and changes in insect population.

A study of two forest ecosystems in Spain has found that land-cover maps of watersheds, ecosystems hosting key interactions between vegetation, wildlife, and water, are made more accurate by the inclusion of LiDAR data — a type of remote sensing that pulses laser light at a target to measure vertical distances for use in 3D-mapping an environment. This has important implications for ecosystem monitoring, flood mitigation, and forest management, fields in which accurately characterising an environment is key.

Forest root systems increase soil strength and stability, thus protecting mountainous regions against gravitational natural hazards, such as landslides. However, tree roots are affected by factors such as soil properties, climate and disturbances, such as timber-harvesting or wildfire — and, as a result, a forest’s stabilising effect can vary greatly. This study of fire-disturbed beech forests explores how this effect changes over time. The results reveal that forests which have suffered moderate and severe wildfires completely lose their protective function within 15 years, placing those regions at high risk of landslide for up to 50 years after the fires.

New research on sustainable forest management (SFM) initiatives in Russia and Sweden has indicated that the main challenges to SFM are combining top-down and bottom up approaches to management, coordinating the different sectors involved and including all actors and stakeholders.

A recent study suggests that, since forests play a significant role in the regional and global supply of water vapour in the atmosphere, they should be thought of as global public goods and not viewed negatively in terms of water consumption.

Forest management could help adaptation to climate change through its effects on water supply. A long-term US-based study has analysed the impact of forested land use changes on water flow into streams and rivers. It indicated that converting forests from deciduous to pine trees could help water storage in extreme wet conditions, but may be unsuitable in droughts. As such, it recommends tailoring management decisions to the context.

According to researchers, opportunities for carbon sequestration and benefits for biodiversity offered by forest rehabilitation schemes mean they should be given greater value as a tool for carbon offsetting. A new study demonstrates the value of forest rehabilitation for rainforest birds.

Actions to reduce emissions caused by deforestation and degradation (REDD) also enhance ecosystem services, according to a new report. Using a case study from the Amazon it indicated that REDD support schemes can also help maintain water levels and quality and protect soil from erosion.

Practical barriers may be hampering the application of an ecosystem services approach to forests. A new analysis has outlined three strategies to overcome these barriers: fostering private markets, managing public land and raising awareness of ecosystem services.