Latitudinal gradient in species richness of Sphaerotherium
Cooper, M. (2020). Latitudinal gradient in species richness of Sphaerotherium. Arthropods 9(4): 164-170
In: Arthropods: Hong Kong. e-ISSN 2224-4255, more
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| Keyword |
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| Author keywords |
diversity; gradient; latitude; richness; species |
| Abstract |
The Tropical Conservativism Hypothesis and Biogeographical Conservativism Hypothesis were tested in forest millipedes. Latitudinal diversity gradient (LDG) was measured in the genus Sphaerotherium in order to distinguish between the two hypotheses. There was a significant correlation between the number of species and latitudinal degrees away from the equator (r=-0.8701, r2=0.7571, n=46, p<0.00001). An evolutionary preference for temperate environments appearing to have led to climatic constraints on dispersal based primarily on precipitation seasonality gradients was suggested. |
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