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Tag: "ecologists" at biology news

Want to save polar bears? Follow the ice

...endy P. McCaw Foundation and will enable landscape ecologists to bring nearly 30 years of daily collected satellite imagery and meteorological data into a Geographical Information Systems (GIS) map that will enable conservationists to more accurately predict where sea ice—a vital habitat for polar bears and sea...

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

...tropical forests has so far mostly been studied by ecologists trying to understand factors like seed dispersal and soil quality, our study clearly shows the importance of an increased understanding also of the social context behind forest regeneration," says Elmqvist. The loss of tropical forests is a concern w...

Healthy coral reefs hit hard by warmer temperatures

...standing the causes of disease outbreaks will help ecologists protect reef-building corals, which support commercial marine species and buffer low-lying coastal areas. "More diseases are infecting more coral species every year, leading to the global loss of reef-building corals and the decline of other impor...

How badger culling creates conditions for spread of bovine TB

... spread of bovine tuberculosis (TB) among badgers, ecologists have found. The findings ?published online in the ...ucestershire, that has been intensively studied by ecologists for more than 15 years. The authors analysed almost 9,000 trapping records involving 1,859 different...

Some caterpillers just don't want to grow up

For many years, ecologists from the Centre of Environment and Hydrology (CEH) have investigated the ecology of Maculinea rebeli, a Lycaenid butterfly whose caterpillars live as parasites inside colonies of Myrmica ants, where they feed on regurgitations from the nurse ants. On...

Biologists produce global map of plant biodiversity

...temperate regions, the general understanding among ecologists about this striking difference continues to be very limited. "Given that we are far off from knowing the individual distributions of the world's 300,000 odd plant species," says Jetz. "Holger Kreft and I investigated how well the richness of plant...

Microbes compete with animals for food by making it stink

... at the start." Hay hopes the research will make ecologists think more critically about the broad role of microbes in the ecosystem. Microbes are often omitted or relegated to a minor role in food web diagrams, but they should be depicted as direct competitors with larger animals, he said. ...

By 2048 all current fish, seafood species projected to collapse

...cean Ecosystem Services," an international team of ecologists and economists studied the role marine biodiversity plays in maintaining ecosystem services, which are those goods and functions that are essential for the growing human population. "Worm and colleagues have provided the first comprehensive asses...

Invasive ants territorial when neighbors are not kin

...from different nests in the same colony. "Some ecologists have hypothesized that environmental factors act to reduce aggression among Argentine ants in California," said David Holway, an assistant professor of biology at UCSD and senior author on the study. "However, we found that while ants from the same ...

Global changes alter the timing of plant growth, scientists say

...e Proceedings of the National Academy of Sciences, ecologists working at Stanford's Jasper Ridge Biological Preserve report evidence that climate change may alter this delicate balance. "In the natural world, species have evolved to be finely attuned to the seasons--timing is everything," said lead author Els...

Why do insects like to eat some plants more than others?

... aren't all eaten at the same rate. Plant-insect ecologists typically attribute the differences to variation in the nutritional quality or defective chemistry of plant tissues. However, the researchers found that cactus-feeding insects chose host plants based on how the plants allocated resources between grow...

Does natural selection drive the evolution of cancer?

...oss-disciplinary field that brings the thinking of ecologists and evolutionary biologists to bear on cancer biology. Insights from their work may have profound implications for understanding why current cancer therapies often fail and how radically new therapies might be devised. A review by researchers at...

Cougar predation key to ecosystem health

...d even butterflies." Until recently, ecologists had a poor understanding of how the loss of an important predator, such as wolves or cougar, could affect such a broad range of other plant and animal species. But the evidence is now accumulating that primary predators not only have direct effects i...

Ecosystem services and invasive species

...cal Society of America's 91st Annual Meeting, many ecologists working in the state will be presenting the results of their research from the region. Below, a few of the highlights: Past and present declines in Hemlocks and the future of the Great Smoky Mountains National Park Monday August 7, 5 ?6:30 PM, Exh...

Global warming may warrant new approaches to ecosystem restoration

...predictable ways and, because of this, restoration ecologists are often faced with unforeseen challenges. Researchers, in a recent article published in Restoration Ecology, argue that restoration methods of the past may not always be applicable in the future They see the largest potential challenge ahead is ...

Discovery may speed forest biotechnology

...splantation to aid their survival. This would give ecologists and conservation geneticists more tools to work with, Strauss said. ...

'Dead zone' summer killed billions of ocean state mussels

...uld be seen on the bay's surface, Brown University ecologists went underwater and discovered a massive mussel di...remaining eight, seven were severely depleted. The ecologists estimate that the number of mussels that died was roughly 4.5 billion, or about 80 percent of the re...

Leave it to salmon to leave no stone unturned

...re than once, using just their tails. For decades ecologists have believed that salmon nest-digging triggered o...s a conceptual framework he's developed that gives ecologists a way to formulate when the abundance of animals and their activities ?be they spawning salmon or so...

UC San Diego partners with Venter Institute to build marine microbial genomics cyberinfrastructure

...ey will provide new tools to help marine microbial ecologists access and derive inferences from the massive data sets. The tools will allow ecologists, for example, to analyze families of proteins and conduct comparative analyses across multiple genomes. "Each individual sequence is no longer just a piece of a...

Spring migration of pink-footed geese under threat

...migration north to breeding grounds in the Arctic, ecologists are warning that the escalating conflict between f...een farmers and geese, Klaassen's model could help ecologists predict how other species might respond to climate change. According to Klaassen: "We need tools to ...

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