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Allen, A.P., T.R. Whittier, P.R. Kaufmann, D.P. Larsen, R.J. O'Connor, R.M. Hughes, R.S. Stemberger, S.S. Dixit, R.O. Brinkhurst, A.T. Herlihy, and S.G. Paulsen. 1999. Concordance of taxonomic richness patterns across five assemblages in lakes of the northeastern USA. Canadian Journal of Fisheries and Aquatic Sciences 56:739-747

We investigated the concordance of taxonomic richness patterns and their environmental correlates for assemblages of benthic macroinvertebrates, riparian birds, sedimentary diatoms, fish, and zooplankton in 186 lakes of the northeastern USA. Taxon counts were standardized with respect to sampling effort using rarefaction. The degree of concordance among assemblage richness measures was low, but this was at least partly attributable to measure precision. Aspects of lake morphology (area, depth) superseded other environmental features (climate, human development, water chemistry, near-shore physical habitat) as correlates of assemblage richness and were the strongest source of concordance. The benthic macroinvertebrates, birds, fish, and zooplankton all showed positive associations between richness and area. The benthic macroinvertebrates and diatoms showed negative associations between richness and depth after area was accounted for, whereas associations with depth were positive or negligibly for the other assemblages. Associations with human development varied from positive (fish) to negative (diatoms) to an intermediate peak (birds).

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