West African rivers as biogeographic islands: species richness of fish communities

  title={West African rivers as biogeographic islands: species richness of fish communities},
  author={Bernard Hugueny},
Some factors influencing the species richness of West African fish communities were studied in a sample of 26 rivers using four habitat and hydrologic variables. Analysis of a larger sample of 39 rivers showed that species richness was positively related to area. A power function with an exponent of 0.32 gave the best fit. As the surface area used was that of the catchment area and not that (unknown) of the river, the biological significance of this relationship and the possibilities of… CONTINUE READING

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