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Lakes as Islands: Biogeographic Distribution, Turnover Rates, and Species Composition in the Lakes of Central New York
Robert A. Browne
Journal of Biogeography
Vol. 8, No. 1 (Jan., 1981), pp. 75-83
Published by: Wiley
Stable URL: http://www.jstor.org/stable/2844594
Page Count: 9
You can always find the topics here!Topics: Freshwater mollusks, Species, Zooplankton, Freshwater fishes, Limnology, Surface areas, Lakes, Freshwater ecology, Species diversity, Snails
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The principles of island biogeographic theory are applied to the species diversity and distribution of various taxa within lakes of central New York state. Greater emphasis is placed on mollusc species, owing to the extensiveness of surveys, but data for zooplankton and fish species are also presented. Species diversity was found to correlate positively with lake surface area, with best descriptive equations being power curve functions. z-values of 0.23, 0.17 and 0.24 were found respectively for mollusc, zooplankton, and fish species-area equations. Species turnover rates over a half-century interval were calculated to be 0.50%/year for molluscs in a large lake, and 0.28%/year for the zooplankton communities of twelve lakes. Zooplankton turnover rates were negatively correlated with lake surface area and initial species number.
Journal of Biogeography © 1981 Wiley