The elusive American pine marten, a little-studied member of the weasel family, might be more diverse than originally thought, according to new research published by a University of Montana professor.
Researchers have found that genes for coronary heart disease (CAD) also influence reproduction, so in order to reproduce successfully, the genes for heart disease will also be inherited.
A study of historic whaling records has revealed there were warning signs that populations of commercially harvested whales were heading for global collapse up to 40 years before the event.
A team led by geneticist Michal Wigler of CSHL has published what they believe is the first rigorous statistical evidence that ancient variations in the human genome contribute to autism -- each, most likely, having a very small effect. The method Wigler and colleagues used in the new study was family-based and compared 'discordant sibilings,' one with and one without autism to a separate collection of affected individuals. The sample included over 16,000 people from nearly 4000 families.
Extinction risk for some species could be drastically underestimated because most demographic models of animal populations only analyse the number and fertility of females, dismissing male data as 'noise'.
'Yarraman flu is a virus quickly infecting the US...' The mock announcement was enough to make readers worry. But when the name of the hypothetical illness was changed to 'horse flu', readers reported being less motivated to get a vaccine that would prevent them from contracting the illness. Based on a survey of 16,510 participants from 11 countries, the findings show that the way health information is communicated, matters. The multi-institutional investigation appeared in Emerging Infectious Diseases.
Influences outside the breeding season matter a lot for the population health of migratory birds, but it's tough to track what happens once species scatter for the winter. A study from The Condor: Ornithological Applications tries a new approach for determining what birds called bobolinks eat after they head south for the winter -- analyzing the carbon compounds in their plumage, which are determined by the types of plants the birds consume during their winter molt.
When both partners benefit from a relationship -- husband and wife or pollinator and flower -- the relationship is known as a mutualism. Sometimes partners do not deliver their side of the bargain while still reaping the rewards. Research done at the Smithsonian in Panama published shows that unless unfaithful partners are severely punished by the other member of the relationship cheaters may become more common.
Its name is Stygobromus hayi, the Hay's Spring amphipod. It is spineless. It lacks vision. It is an opportunistic feeder, consuming whatever resources are available -- perhaps including the remains of its own kind. That is where its similarities to some of Washington, D.C.'s more notorious megafauna end. Researchers report on a way to survey it without threatening its existence, as other studies had done.
Each year, more than a million wildebeest migrate through Africa's Serengeti Mara Ecosystem. While crossing the Kenyan reach of the Mara River, thousands perish. A new study, published today in the Proceedings of the National Academy of Sciences, is the first to reveal how wildebeest drownings impact the ecology of the iconic river.