Animal Populations Current Events | Animal Populations News
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Climate change could trigger 'boom and bust' population cycles leading to extinction
Climate change could trigger "boom and bust" population cycles that make animal species more vulnerable to extinction. , according to Christopher C. Wilmers, an assistant professor of environmental studies at the University of California, Santa Cruz. view more (2007-04-17)
Risk models can reduce number of collisions with wild animals
Hundreds of thousands of animals are killed in traffic every year. The threat traffic represents to badgers is greater than was previously known. A new dissertation at the Swedish University of Agricultural Sciences (SLU) illuminates the conflict between traffic and animals in Sweden and provides models that predict the risk of accidents involving... view more... (2003-12-18)
Origins of wolverine in California genetically verified
A wolverine first photographed by a remote-controlled camera on the Tahoe National Forest in February 2008 is most closely related to Rocky Mountain populations, according to a team of 10 federal, state and university scientists. view more (2009-04-30)
Hermaphroditic plants have genetic advantage in areas where extinctions are frequent
In one of the first studies to empirically compare the reproductive success of hermaphrodites and male and female populations, biologists from the University of Oxford make use of the rare and extreme sexual diversity displayed in a species of European weed to test the hypothesis that hermaphrodites have been selected in regions with frequent... view more... (2006-02-22)
Theory of oscillations may explain biological mysteries
New mathematical studies of the interactions between oscillating biological populations may shed light on some of the toughest questions in ecology, including the number and types of species in an ecosystem, according to an article in the December 2006 issue of BioScience. view more (2006-12-04)
Studies of small water fleas help ecologists understand population dynamics
A study of populations of tiny water fleas is helping ecologists to understand population dynamics, which may lead to predictions about the ecological consequences of environmental change. view more (2008-10-31)
Middle East virus `here to stay` in USA
A virus that originated in the Middle East has become endemic in certain parts of the USA and is set to spread further over the coming year, medical experts heard today (Wednesday 09 January 2002) during a joint meeting of the European Societies of Clinical and Veterinary Virology and the Society for General Microbiology at the Royal College of... view more... (2001-12-21)
Recent, rapid climate change is driving evolution of animal species
Rapid climate changes over the past several decades have led to heritable, genetic changes in animals as diverse as squirrels, birds and mosquitoes, according to University of Oregon evolutionary geneticists. view more (2006-06-09)
Amphibians may develop immunity to fatal fungus
Amphibian populations are declining worldwide, principally because of the spread of the fungal disease chytridiomycosis. Researchers know that some amphibian populations and species are innately more susceptible to the disease than others. view more (2009-04-01)
In the migratory marathon, parasitized monarchs drop out early
A little-studied outcome of animal migration is whether these long journeys can limit the spread of parasites by weeding out diseased animals. Monarch butterflies in eastern North America fly up to thousands of kilometers from Canada to Central Mexico - one of the longest migrations of any insect species. view more (2005-02-08)
Study finds life-saving trend among seagulls
Following trends is a lifesaving instinct, at least for birds, and provides clues that can be applied across the animal kingdom. view more (2009-02-23)
Wildlife faces cancer threat
While cancer touches the lives of many humans, it is also a major threat to wild animal populations as well, according to a recent study by the Wildlife Conservation Society (WCS). view more (2009-06-25)
Animal Experiments Are Necessary, But Government And Industry Should Do More To Develop Non-animal Alternatives
A Lords report published today by the Select Committee on Animals in Scientific Procedures found that animal experiments are currently necessary to develop human and veterinary medicine, and to protect humans and the environment. However, the report says that more should be done to fund and promote "alternative" methods known as the... view more... (2002-07-24)
Higher blood pressures among African Americans - genes not likely to be an explanation
Genetics may not be enough to explain the rates of high blood pressure in US African-American populations, according to new research published today in BMC Medicine. The international study gives a different interpretation to the previous US data and suggests that high rates of hypertension might have more to do with lifestyle and socio-economic... view more... (2004-12-31)
The song doesn't remain the same in fragmented bird populations
The song of passerine birds is a conspicuous and exaggerated display shaped by sexual selection in the context of male-male competition or mate attraction. At the level of the individual, song is considered an indicator of male 'quality'. view more (2008-03-19)
Use of stone hammers sheds light on geographic patterns of chimpanzee tool use
In a finding that challenges a long-held belief regarding the cultural spread of tool use among chimpanzees, researchers report that chimpanzees in the Ebo forest, Cameroon, use stone hammers to crack open hard-shelled nuts to access the nutrient-rich seeds. view more (2006-08-22)
Researchers take first look at the genetic dynamics of inbreeding depression
Researchers have taken a first look at the broad genetic changes that accompany reproductive declines in inbred populations. view more (2009-03-13)
Human activity destroys species that the Ice Age could not
Forest clearance and animal overgrazing in the last 5,000 years have destroyed important tree species that had survived even the Ice Age. Dr Mick Frogley, Lecturer in Physical Geography at the University of Sussex, is one of a British research team exploring a site near Lake Ioannina in the Pindus Mountains of northwestern Greece. "Given the... view more... (2002-09-20)
Overfishing and evolution
Using snorkelers and SCUBA divers is not the best way to monitor fish populations, if we want to know the evolutionary effects of overfishing. view more (2009-07-21)
Mapping the neural landscape of hunger
The compelling urge to satisfy one's hunger enlists structures throughout the brain, as might be expected in a process so necessary for survival. view more (2006-08-17)
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