... extreme physical needs of S. islandicus make it an ideal organism for studying the impact of geographic isolation. It can live only at temperatures that approach the boiling point of water and in an ...
... and found a way to settle the debate which deals with the origin of species independent of geographic isolation.
They demonstrated, using a computer model, how diverse species can arise from the ...
... new paper published in the early online version of the , Waltari and Guralnick test the concept of geographic isolation on thirteen species of jackrabbits, shrews, ground squirrels, and other small ...
... ) - Some colorful cichlid fish in Africa's Lake Victoria formed a new species by adapting their vision, showing that geographical isolation is not essential for divergence, researchers said Wednesday.
... .
Evolutionary divergence, he explained, tends to be associated with geographic isolation.
If fruit flies don't make an impressive example of speciation and environmental adaptation, the ...
... years. Isolation has led to a high number of unique species like chameleons (Furcifer petteri ... climate types. The "watershed" hypothesis suggests that geographic isolation drives evolution: species move ...
... the Earth's surface and local ecosystems changed, descendant dental hominoids became geographically isolated from one another.
Schwartz and Grehan compare this theory of ancestral distribution with ...
... conservationists are relocating cancer-free Tasmanian devils to geographically isolated areas or zoos.
Many species living within polluted aquatic environments suffer high rates of ...
... studies on a century's worth of anatomic changes between two geographically isolated rodents -- Channel Island deer mice from coastal California and white-footed mice northwest of ...
Experts say the danger is more likely related to malnutrition, chronic disease and geographic isolation than to genetic differences.
... finding that offers clues to how species evolve. When two populations of a species become geographically isolated from each other, their genes diverge from one another over time.
Eventually, when a ...
... of Species, most 20th century research focused on the role of genetic factors and geographic isolation in promoting speciation. More recently, however, studies consistent with "ecological speciation" ...
... landmasses were isolated for most of the past 20-30 million years.
"The prolonged geographic isolation of New Zealand and the paucity of terrestrial mammals created a unique ecosystem dominated by an ...
