latitudinal gradation

biology

Learn about this topic in these articles:

In biogeographic region: Components of species diversity: species richness and relative abundance
The most obvious gradient is latitudinal: there are more species in the tropics than in the temperate or polar zones. Ecological factors commonly are used to account for this gradation. Higher temperatures, greater climate predictability, and longer growing seasons all conspire to create a more inviting habitat, permitting a greater…
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