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JPR Advance Access published online on September 26, 2005
Journal of Plankton Research, doi:10.1093/plankt/fbi072
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© The Author 2005. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Received May 19, 2005
Accepted September 14, 2005

Article

Community Analysis of Belarusian Lakes: Relationship of Species Diversity to Morphology, Hydrology, and Land Use

Alexander Y. Karatayev 1*, Lyubov E. Burlakova 1, and Stanley I. Dodson 2

1 Department of Biology, Stephen F. Austin State University, P.O. Box 13003, SFA Station, Nacogdoches, TX, 75962-3003 USA
2 Zoology Department - Birge Hall, University of Wisconsin, Madison, WI 53706-1381

* To whom correspondence should be addressed.
Alexander Y. Karatayev, E-mail: akaratayev{at}sfasu.edu


  Abstract

In the glacial lake district of northern Belarus, limnologists collected extensive biological, chemical, and physical data on 550 lakes (51% of all Belarusian glacial lakes). This large data set provided a unique opportunity to examine subtle relationships with great statistical power. Our purpose was to use multivariate and correlation analyses to explore relationships of species richness with morphological and hydrological parameters. A multivariate analysis of the environmental data suggests that the Belarusian lakes can be separated along gradients of size, hydraulic residence time, and watershed development (land use). In most instances, species richness for major planktonic and benthic groups was correlated significantly with lake size and land use. Species richness values were correlated less with watershed size or hydraulic residence time. In each community there was a group of species characterized by higher correlations with principal component analysis (PCA) axes. These groups are: for phytoplankton - diatoms, for zooplankton - rotifers, and for zoobenthos - molluscs. For lakes both in pristine and developed watersheds we found small, but significant negative species-area correlations for littoral crustaceans. A survey of the relevant literature shows scale dependence for the correlation between species richness and lake size. For pelagic crustaceans, the species-area correlation was significant (and positive) for lakes with developed watersheds but not for pristine watersheds.

Communicating Editor: KJ Flynn
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