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Tag: "deforestation" at biology news

Falling ants glide back to trunk to avoid dangers of forest floor

... the rule." Yanoviak is in Iquitos to explore how deforestation affects the mosquito transmission of Venezuelan equine encephalitis. In hopes of establishing a mosquito colony in the laboratory, he goes in search of mosquitoes and larvae in the canopy where they live, mostly above private land around the city. Us...

Amazon symposium to address large-scale conservation

...ce destruction as the principle industries driving deforestation (cattle ranching and soybean farming) are strengthened by expanding world markets for open-range beef and grain. The paving of highways into the heart of the region will facilitate the export of Amazon products to world markets as it creates new corr...

UN: World in big ecological mess

...the scourge by 2015. Changes in ecosystems such as deforestation influence the abundance of human pathogens such as malaria and cholera, as well as the risk of emergence of new diseases. Malaria, for example, accounts for 11 per cent of the disease burden in Africa and had it been eliminated 35 years ago, the cont...

Amazon source of 5-year-old river breath

... which could make the system much more reactive to deforestation and climate change." For example, data from a region of active deforestation in the southern Amazon already shows that the carbon leaving rivers has an identifiable isotopic sig...

Assessing the Amazon River's sensitivity to deforestation

...sensitive it will be to ongoing, and accelerating, deforestation is a focus of study for scientists at the Woods Ho...t several decades have led to significant areas of deforestation in the Amazon, most in the eastern and southern portion of the basin. By using a combination of nume...

NASA satellite data provides rapid analysis of Amazon deforestation

...heck out all the satellite images showing areas of deforestation on the NASA website The Amazon, a vast tropica...w scientists to more quickly and accurately assess deforestation in the Amazon. Researchers from the University of Maryland-College Park, Brazil's National Institut...

Tropical Deforestation affects rainfall in the U.S. and around the globe

...e changes, particularly the effects of large-scale deforestation in tropical regions on the global climate. Researc...ral climate simulations. Their research found that deforestation in different areas of the globe affects rainfall patterns over a considerable region. Deforestatio...

Tropical dry forests receive international recognition

... Sanchez-Azofeifa. In Mexico, the main threat is deforestation by local communities but the dry forest is also targeted for its natural beauty. Hotel resorts and golf courses are being built on the once-pristine land. TROPI-DRY's goal is to try to help translate research into tools countries can use as polici...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

... Until now, satellite-based methods for measuring deforestation across large areas have only been capable of detec... Institution of Washington and colleagues, detects deforestation on a finer scale, allowing researchers to identify areas where trees have been thinned, due mostly t...

Tsunami + 1 year: Reviving exhausted fisheries should trump replacing boats, gear, experts say

... damage to coastal habitats such as mangroves (and deforestation to support rebuilding efforts) may affect the sustainability of key fisheries resources; 4. History shows us that the continuation of open-access fishery regimes for these coastal communities will lead to an inexorable decline in resources and oppor...

Tropical Atlantic cooling and African deforestation correlate to drought, report scientists

...man's reduction of inland vegetation cover through deforestation and overgrazing in equatorial Africa and increases...ab points out that the past 50 years are marked by deforestation and overgrazing much greater than that of the past, thus disturbing the climate system that results ...

Satellites show Amazon parks, indigenous reserves stop forest clearing

...t rainforest parks and indigenous territories halt deforestation and forest fires. According to Nepstad, "Protec...ions: 33 of 38 indigenous territories with annual deforestation greater than 1.5 percent outside their borders had inner deforestation rates of 0.75 percent or less...

The Amazon in 2050: Implementing the law could save a million square kilometers of rainforest

...s of plausible futures for this region. A study of deforestation responses to different policies will be published ... spare the Amazon one million square kilometers of deforestation (one fifth of the entire forest area), avoiding 17 billion tons of carbon emissions to the atmospher...

Amazon rainforest greens up in the dry season

...forests and other tropical biomes function and how deforestation affects biodiversity and sustainable land use in the tropics. It will also help scientists better understand the global carbon cycle, which affects the natural sequestration and release of carbon dioxide, a major greenhouse gas. The finding that con...

Deep-rooted plants have much greater impact on climate than experts thought

... Amazon and underestimated the impact of Amazonian deforestation on climate." As the largest forested area on the planet, the Amazon plays a major role in removing carbon dioxide from the atmosphere and thus impacts the climate globally, according to lead author Jung-Eun Lee, a former UC Berkeley graduate student...

Report shows deforestation threatens Brazil's Pantanal

...iver Basin, which includes the Pantanal. Continued deforestation at the current rate would cause all of the Pantanal's original vegetation to disappear in 45 years, according to CI researchers in Brazil. Overall, opening the region to more grazing and agriculture, including the transformation of native pasture to...

Colombian frog believed extinct found alive

...vironmental changes caused by human impact such as deforestation and global warming. ...

Choosy females make colourful males

...rise. Due to the introduction of the Nile perch, deforestation and population growth, water transparency in Lake Victoria is declining. In turbid water, cichlid females are less choosy and males are less brightly coloured. This research therefore underlines the importance of measures to counteract the ongoing eu...

End of deforestation in view? Experts advance new way to size up global forest resources

...er of countries and regions are transitioning from deforestation to afforestation, raising hopes for a turning poin...how several places worldwide have shifted from net deforestation to net reforestation ?the "forest transition." Forest transitions," says geographer and historian...

Recently discovered species gain protection

...early 20th Century and subsequently by broad scale deforestation for pasturelands. Only 370 acres of the bird's habitat previously had been in any way protected, but even this limited sanctuary is at risk from timber extraction clearing the last subtropical forest fragments surrounding it. Now, support from the ...

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