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forests in Biological News

Pacific Northwest forests could store more carbon, help address greenhouse issues

CORVALLIS, Ore. The forests of the Pacific Northwest hold significant potential to increase carbon storage and help mitigate greenhouse gas emissions in coming years, a recent study concludes, if they are managed primarily for that purpose through timber harvest reductions and increased rotation ...

Managing Douglas-fir forests for diversity

PORTLAND, Ore. May 8, 2009. Creating diverse forests for multiple uses is important to natural resource managers and landowners. A study conducted in southwestern Oregon provides forest managers with information that offers choices when managing land for a variety objectives that may include a hig...

Cleaning the atmosphere of carbon: African forests out of balance

Tropical forests hold more living biomass than any other terrestrial ecosystem. A new report in the journal Nature by Lewis et al. shows that not only do trees in intact African tropical forests hold a lot of carbon, they hold more carbon now than they did 40 years ago--a hopeful sign that tropi...

Wildfires result in loss of forests reserved by Northwest Forest Plan

PORTLAND, Ore. November 6, 2008. Although the Northwest Forest Plan (NWFP) significantly reduced cutting of old-growth forests on federal land, forests in the driest regions are now at greater risk of being lost to wildfire than to logging. A team of federal and university scientists recently comp...

'Living fossil' tree contains genetic imprints of rain forests under climate change

ANN ARBOR, Mich.---A "living fossil" tree species is helping a University of Michigan researcher understand how tropical forests responded to past climate change and how they may react to global warming in the future. The research appears in the November issue of the journal Evolution . Sy...

Old growth forests are valuable carbon sinks

CORVALLIS, Ore. Contrary to 40 years of conventional wisdom, a new analysis to be published Friday in the journal Nature suggests that old growth forests are usually "carbon sinks" - they continue to absorb carbon dioxide from the atmosphere and mitigate climate change for centuries. Howeve...

Scientists point to forests for carbon storage solutions

COLUMBUS, Ohio Scientists who have determined how much carbon is stored annually in upper Midwest forests hope their findings will be used to accelerate global discussion about the strategy of managing forests to offset greenhouse gas emissions. In an era of competing land use demands, the res...

Paying to save tropical forests could be a way to reduce global carbon emissions

COLUMBUS, Ohio Wealthy nations willing to collectively spend about $1 billion annually could prevent the emission of roughly half a billion metric tons of carbon dioxide per year for the next 25 years, new research suggests. It would take about that much money to put an end to a tenth of the ...

New report: Greatest value of forests is sustainable water supply

WASHINGTON, D.C. The forests of the future may need to be managed as much for a sustainable supply of clean water as any other goal, researchers say in a new federal report but even so, forest resources will offer no "quick fix" to the insatiable, often conflicting demands for this precious reso...

Workshop assesses interactions between climate, forests and land use in the Amazon Basin

On February 25 and 26, over 50 scientists gathered for a two-day workshop in Manaus, Brazil, to discuss the current state of knowledge on the feedbacks between deforestation and climate in the Amazon and what research is required to avoid catastrophic change. Collaborators from the Woods Hole Rese...

Destruction of Sumatra forests driving global climate change and species extinction

PEKANBARU, SUMATRA -Turning just one Sumatran province's forests and peat swamps into pulpwood and palm oil plantations is generating more annual greenhouse gas emissions than the Netherlands and rapidly driving the province's elephants into extinction, a new study by WWF and partners has found. ...

Carbon sink capacity in northern forests reduced by global warming

An international study investigating the carbon sink capacity of northern terrestrial ecosystems discovered that the duration of the net carbon uptake period (CUP) has on average decreased due to warmer autumn temperatures. Net carbon uptake of northern ecosystems is decreasing in response to a...

Beetle dung helps forests recover from fire

Armed with a pair of tweezers and a handful of beetle droppings, University of Alberta forestry graduate Tyler Cobb has discovered why the bug-sized dung is so important to areas ravaged by fire. Cobb studied the burned-out area of a northern Alberta hamlet which was partially lost to wildfire ...

European Union forests expanding, absorbing carbon at surprisingly high rate: study

European Union countries likely require an old ally Mother Nature and her forests to meet an ambitious post-Kyoto goal for cutting greenhouse gas emissions 20% by 2020, according to new research. The University of Helsinki study says that despite rising population and affluence, the EU can me...

Univ. of Arizona receives $2.5 million to study Amazon forests and climate change

A University of Arizona-led international team of scientists has received a five-year, $2.5 million grant to answer the question, What is the future of Amazon forests under climate change" and to train the next generation of culturally experienced scientists. The project combines international col...

Why do so many species live in tropical forests and coral reefs?

The latest development in a major debate over a controversial hypothesis of biodiversity and species abundance is the subject of a paper to be published in the 1 November 2007 issue of the journal Nature. The authors report good agreement between the species richness of two of the world's most vu...

Upper Midwest forests are losing diversity, complexity, ISU study finds

AMES, Iowa -- Forests in the nation's Upper Midwest have changed greatly since the time of the early settlers. And more changes may be coming. That's according to research done by Lisa A. Schulte, assistant professor in Iowa State University's department of Natural Resource Ecology and Manageme...

Researchers discover forests of endangered tropical kelp

(Santa Barbara, Calif.) -- A research team led by San Jose State University and the University of California, Santa Barbara has discovered forests of a species of kelp previously thought endangered or extinct in deep waters near the Galapagos Islands. The discovery has important implications for ...

Spatial patterns in tropical forests can help to understand their high biodiversity

The high biodiversity in tropical forests has both fascinated and puzzled ecologists for more than half a century. In the hopes of finding an answer to this puzzle, ecologists have turned their attention to the spatial patterns of such communities and mapped the location of each tree with a stem l...

Peat and forests save permafrost from melting

Hamilton, ON. September 13, 2007 Permafrost may be buffered against the impacts of climate change by peat and vegetation present in the northern regions, according to a study by McMaster researchers. Permafrost is frozen soil that remains at or below 0 oC for at least two consecutive years. Cu...

Emphasis on conifer forests places multiple species at risk

CORVALLIS, Ore. The traditional emphasis on dense, fast-growing, conifer-dominated forests in the Pacific Northwest raises questions about the health of dozens of animal species that depend on shrubs, herbs and broad-leaf trees, a new analysis by Oregon State University and the U.S. Geological Su...

Global warming increasing the dispersal of flora in Northern forests

As a result of stronger winds caused by global warming, seeds and pollen are being carried over longer distances. An increase in temperature of only a couple of degrees may increase the dispersal of plants in Northern forests and the spread of plant species into forest clearings after felling or f...

Study reveals potential to amass more carbon in eastern North American forests

MADISON With climate change looming, the hunt for places that can soak up carbon dioxide from the atmosphere is on. Obvious "sinks" for the greenhouse gas include the oceans and the enormous trees of tropical rainforests. But temperate forests also play a role, and new research now suggests t...

Study reveals potential to amass more carbon in eastern North American forests

MADISON With climate change looming, the hunt for places that can soak up carbon dioxide from the atmosphere is on. Obvious "sinks" for the greenhouse gas include the oceans and the enormous trees of tropical rainforests. But temperate forests also play a role, and new research now suggests t...

Tree species composition influences nitrogen loss from forests

MADISON, WI, MARCH 16, 2009--Throughout the world, nitrogen compounds are released to the atmosphere from agricultural activities and combustion of fossil fuels. These pollutants are deposited to ecosystems as precipitation, gases, and particles, sometimes many hundreds of miles downwind of their ...

Coffee cultivation good for diversity in agrarian settlements but not in forests

Coffee shrubs, both in themselves and because they are most often cultivated in the shade of large trees, can have a positive impact on plant and animal diversity in those parts of the landscape that are deforested and dominated by agriculture. What constitutes a dilemma for consumers wishing to ...

One-fifth of fossil-fuel emissions absorbed by threatened forests

Globally, tropical trees in undisturbed forest are absorbing nearly a fifth of the CO 2 released by burning fossil fuels. The researchers show that remaining tropical forests remove a massive 4.8 billion tonnes of CO 2 emissions from the atmosphere each year. This includes a previously unkno...

Scientists use lasers to measure changes to tropical forests

HILO, Hawaii January 23, 2009New technology deployed on airplanes is helping scientists quantify landscape-scale changes occurring to Big Island tropical forests from non-native plants and other environmental factors that affect carbon sequestration. U.S. Forest Service and Carnegie Institution ...

Dried mushrooms slow climate warming in Northern forests

Irvine, Calif. The fight against climate warming has an unexpected ally in mushrooms growing in dry spruce forests covering Alaska, Canada, Scandinavia and other northern regions, a new UC Irvine study finds. When soil in these forests is warmed, fungi that feed on dead plant material dry out ...

Lichens function as indicators of nitrogen pollution in forests

Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species. Their findings are presented this month in the international journal Environmental Poll...

Researchers explain nitrogen paradox in forests

Stanford, CA Nitrogen is essential to all life on Earth, and the processes by which it cycles through the environment may determine how ecosystems respond to global warming. But certain aspects of the nitrogen cycle in temperate and tropical forests have puzzled scientists, defying, in a sense, th...

New approach to measuring carbon in forests

CSIRO is collaborating in a NASA-funded project, using a CSIRO-designed instrument, to help develop new methods of measuring forest carbon stores on a large scale. Forests are the worlds main above-ground carbon store and are therefore critical in controlling the global carbon cycle. But estimati...

Stakeholders use science to find common ground on wood supply from forests

Northern Arizona University has released a report that identifies the potential volume of wood resources available from more than 2 million acres of Arizona forests, representing the first major agreement among groups typically at odds over the issue of forest thinning. The Wood Supply Analysis...

No convincing evidence for decline in tropical forests

Claims that tropical forests are declining cannot be backed up by hard evidence, according to new research from the University of Leeds. This major challenge to conventional thinking is the surprising finding of a study published today in the Proceedings of the US National Academy of Sciences b...

New carbon calculator conserves forests

Arlington, Virginia (Dec. 11, 2007) A quick and cool way to help combat climate change is now available at www.conservation.org/carboncalculator . Lively videos and stunning images are featured in Conservation Internationals (CI) new online carbon calculator, which helps people easily calcula...

Wildfire drives carbon levels in northern forests

MADISON - Far removed from streams of gas-thirsty cars and pollution-belching factories lies another key player in global climate change. Circling the northern hemisphere, the conifer-dominated boreal forests - one of the largest ecosystems on earth - act as a vast natural regulator of atmospheri...

Study shows housing development on the rise near national forests

PORTLAND, Ore. October 25, 2007. Americas national forests and grasslands provide the largest single source of freshwater in the United States, habitat for a third of all federally listed threatened or endangered species, and recreation opportunities for people (about 205 million visits are made a...

Conservation International and Toyota partner to protect Philippines' rain forests

Manila, Philippines - Conservation International (CI) today announced a partnership with Toyota to support efforts to restore and protect more than 4,000 acres of the Philippines Peablanca Protected Landscape and Seascape (PPLS), located in the Northeastern part of one of the nations main islands....

Madagascan tropical forests return thanks to better management and well-defined ownership

A study published in the May 2nd issue of the online, open-access journal PLoS ONE, shows that although loss of tropical dry forests occurs in southern Madagascar, there are also large areas of forests regenerating. The return of forest cover was found to be substantial in the study area, with an o...

Tropical forests -- Earth's air conditioner

Planting and protecting trees—which trap and absorb carbon dioxide as they grow—can help to remove carbon dioxide from the atmosphere. But a new study suggests that, as a way to fight global warming, the effectiveness of this strategy depends heavily on where these trees are planted. In particular,...
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