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Tag: "climate" at biology news

Researchers find 24 species believed new to science in Suriname rainforest

...mazon rainforest a crucial strategy for minimizing climate change. The burgeoning global carbon market creates new economic value for carbon stored in standing rainforest, providing fresh incentive for developing nations such as Suriname to avoid deforestation....

Modeling the restless brain

...such as cellular metabolism, the economy or global climate change. Models must be used to test theories and generate new insights into how the system works as a whole. And while technologies such as functional MRI allow scientists to measure some kinds of neural connectivity, neuroinformatics approaches,...

Envisat captures first image of Sargassum from space

...imary productivity of the ocean and better predict climate change. Credit: ESA Sargassum seaweed, famous in ...imary productivity of the ocean and better predict climate change. Using optical radiance data from the Medium Resolution Imaging Spectrometer (MERIS) aboar...

Dirty snow may warm Arctic as much as greenhouse gases

...rch. Dirty snow has had a significant impact on climate warming since the Industrial Revolution. In the pa... are considered the Earth’s most important overall climate changing mechanism. Other human influences on Arctic climate change are particles in the atmosphere,...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...itat degradation and possibly other causes such as climate change. A recent global assessment of amphibians found that the Caribbean Islands have the highest proportion of amphibian species threatened with extinction. Hedges and coauthor William Duellman, a professor emeritus of the University of Kansas, w...

Salty oceans provide early warning for climate change

...he ocean water could provide an early indicator of climate change. Significant increases or decreases in salt in key areas could forewarn of climate change in 10 to 20 years time. Presenting their findings at a recent European Science Foundation (ES...

Researchers examine carbon capture and storage to combat global warming

...ssil fuels, the sooner we'll be able to tackle the climate problem,'' said Sally Benson, executive director of the Global Climate and Energy Project (GCEP) and professor of energy resources engineering. ''But the idea that we can take fossil fuels out of the mix very quickly is unrealistic. We're reliant on ...

Marine phytoplankton changes form to protect itself from different predators

... The behavior could have implications for global climate change because Phaeocystis blooms play a key role ...eocystis could be important to scientists studying climate change because the predator that ultimately consumes the phytoplankton determines the fate of the ca...

The kapok connection -- Study explains rainforest similarities

...esearch. "In order to plan for and mitigate global climate change, we need to understand the history of life on Earth through studies like this one." Oceanic dispersal links the world's rainforests, said Dick, "and this study is one of the first to catch that process in action at the species level. Althou...

Prey not hard-wired to fear predators

...used by these migrants. “It is not just changes in climate or disease may alter our big remote wild landscapes, but so do the actions of conservationists and public agencies by restoring ecosystems to bring native carnivores back to where they once thrived.” said Dr. Berger. Berger’s study, which looked ...

Scientists close in on missing carbon sink

..." Stephens says. "This will help us better predict climate change and identify possible strategies for mitiga...bon For years, one of the biggest mysteries in climate science has been the question of what ultimately happens to the carbon emitted by motor vehicles, fa...

Ice Age extinction claimed highly carnivorous Alaskan wolves

.... It has been variously blamed on human hunting or climate change, or on a combination of factors as the Ice Age waned. For the specialized Alaskan wolves, the story is perhaps less complicated. “When their prey disappeared, these wolves did as well,” Leonard said. But the results of this study also impl...

Antarctic icebergs -- Hotspots of ocean life

Global climate change is causing Antarctic ice shelves to shrink ...gs. They may also play a surprising role in global climate change. “One important consequence of the increased biological productivity is that free-floatin...

Lessons from the orangutans: Upright walking may have begun in the trees

... of the Miocene epoch (24 to 5 million years ago), climate in East and Central Africa became alternately wetter and drier, and the rainforest grew increasingly patchy. Apes living in the forest canopy would have begun to encounter gaps between trees that they could not cross at the canopy level. The Sci...

Arctic ice retreating more quickly than computer models project

... The authors compared model simulations of past climate with observations by satellites and other instrume...g of summertime ice is about 30 years ahead of the climate model projections. As a result, the Arctic could be seasonally free of sea ice earlier than the IPCC...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...ential for maintaining the control of the planet’s climate by counteracting greenhouse effects due to human activities. Clearly, this storage capacity is affected by changes in the photosynthetic efficiency of the algae, which in turn is linked to the environmental conditions experienced by these organisms i...

Climate change was the cause of Neanderthal extinction in the Iberian Peninsula

...limate reconstructions The study is based upon climate reconstructions elaborated from marine records and...hal populations did suffer fluctuations related to climate changes before the first Homo Sapiens arrived in the Iberian Peninsula. Cold, arid and highly variab...

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

...in the world and have a large importance in global climate regulation. Estimates of tropical forest loss are still uncertain and a 50 % margin of error appears possible. However, scientists know even less about regeneration of tropical forests. "We now know a fair amount about the human social context in ...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...tions in a rapidly warming world. It suggests that climate change may have devastating consequences for lizar... from population growth, tourism, development, and climate change,?says Jetz. “The consequences of island vulnerability have already been observed as island s...

Climate change impacts stream life

...has been given so far to the ecological effects of climate change on these running-waters. Now a twenty-...es, has examined for the first time the effects of climate change on stream species. The study looked at the effects of climate change on stream macroinv...

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