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Population Divergence In Plant Species Reflects Latitudinal Biodiversity Gradients
The trend for increasing biodiversity from the poles to the tropics is one of the best-known patterns in nature. This latitudinal gradient has primarily been documented using extant species as the measure of biodiversity.
Eo et al. (2008) evaluated this pattern by considering the magnitude of genetic divergence among populations within 45 species of plants.
They expected the divergence among populations would exhibit a similar latitudinal gradient, and found that populations at lower latitudes (closer to the equator) were more divergent than those at higher latitudes.
These results suggest that tropical peaks in speciation rates are associated with observed levels of plant species richness.
Royal Society journal Biology Letters
Biology Letters publishes short, high-quality articles from across the biological sciences. The journal is characterised by stringent peer-review, rapid publication and broad dissemination of cutting-edge research communications.
www.publishing.royalsociety.org/biologyletters
Populaþia a conceptelor de specii de plante de latitudine reflectã Biodiversitate Gradients - Population Divergence In Plant Species Reflects Latitudinal Biodiversity Gradients - articole medicale engleza - startsanatate