Species reemergence after collapse: Possible but different
Species pairs that disappear through hybridization after human-induced changes to the environment can reemerge if the disturbance is removed, according to a new mathematical model that shows the conditions under which reemergence ...
440-year-old document sheds new light on native population decline under Spanish colonial rule
Analysis of a 440-year-old document reveals new details about native population decline in the heartland of the Inca Empire following Spanish conquest in the 16th century.
First signs of progress in saving Indian vultures from killer drug
The ban on a veterinary drug which caused an unprecedented decline in Asian vulture populations has shown the first signs of progress, according to scientists. However, the recovery of the wild vulture populations requires ...
Winter sports threaten indigenous mountain birds
In the winter months, the mountain ranges of central Europe attract thousands of tourists for skiing, snowboarding and other outdoor sports, but conservationists fear this annual invasion may threaten indigenous bird species, ...
Manatee subspecies genetically confirmed, but diversity challenge looms
The first genetic study to compare nuclear DNA of endangered Antillean manatees in Belize with Florida manatees confirmed their designation as separate subspecies. Belize's manatees, however, were found to have extremely ...
Forest access roads affect walleye populations in northern Ontario lakes
Forestry access roads can have undesirable outcomes on fish populations living in remote lakes due to increased access, reveals research written by Len Hunt and Nigel Lester of the Ontario Ministry of Natural Resources, recently ...
Scientists stumped as bee population declines further
The decline in the US bee population, first observed in 2006, is continuing, a phenomenon that still baffles researchers and beekeepers.
New research shows fishery management practices for beluga sturgeon must change
A first-of-its-kind study of a Caspian Sea beluga sturgeon (Huso huso) fishery demonstrates current harvest rates are four to five times higher than those that would sustain population abundance. The study's results, which ...
French male bears in immediate need of more females
The population of brown bears (Ursus arctos) in France is now so small that the species might become extinct in the near future. However, there is new hope in the form of new research published October 28 in the open-access, peer-r ...
Study: Loggerhead turtles put at risk by fishing
(AP) -- It's a scene that scientists say is all too common: A commercial fishing boat pulls in a net full of shrimp or tuna and finds a loggerhead sea turtle mixed in with the catch.
Death rate spikes among migrating whooping cranes
(AP) -- The world's only naturally migrating whooping cranes, and the species' best chance for survival, died at about twice their normal rate last year and will likely see an overall drop in their numbers, ...
Society warns cuckoo bird in danger of extinction
(AP) -- Britain's cuckoo bird, known for its distinctive call, is in danger of extinction along with 51 other species, the Royal Society for the Protection of Birds said in a new report Thursday.
Biologists use DNA to study migration of threatened whale sharks
giants of the fish world that strike terror only among tiny creatures like the plankton and krill they eat -- are imperiled by over-fishing of the species in parts of its ocean range.
Birds in Flint Hills of Kansas, Oklahoma face population decline despite large habitat
The wide-open spaces of the Flint Hills may no longer provide a secure home on the range for several familiar grassland birds, according to research by a Kansas State University ecologist and her colleagues.