EPA Science Inventory

CONCORDANCE OF TAXONOMIC RICHNESS PATTERNS ACROSS MULTIPLE ASSEMBLAGES IN LAKES OF THE NORTHEASTERN UNITED STATES

Contact
DAVID P LARSEN
phone: 5417544362
email: Larsen.Phil@epa.gov


Contact
STEVEN G PAULSEN
phone: 5417544428
email: Paulsen.Steve@epa.gov


Citation:

Allen, A. P., T. R. Whittier, P. R. Kaufmann, D. Larsen, R. J. O'Connor, R. M. Hughes, R. S. Stemberger, S. S. Dixit, R. O. Brinkhurst, A. T. Herlihy, AND S. Paulsen. CONCORDANCE OF TAXONOMIC RICHNESS PATTERNS ACROSS MULTIPLE ASSEMBLAGES IN LAKES OF THE NORTHEASTERN UNITED STATES. Canadian Journal of Fisheries and Aquatic Sciences 56(5):739-747, (1999).

Description:

We investigated the concordance of taxonomic richness patterns and their environmental correlates for assemblages of benthic macroinvertebrates, riparian birds, sedimentary diatoms, fish, planktonic crustaceans, and planktonic rotifers in 186 northeastern U.S. lakes. 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 measurement precision. Aspects of lake morphology (area, depth) superseded other environmental features (climate, human development, water chemistry, nearshore physical habitat) as correlates of assemblage richness and were the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 lake area. The diatoms showed negligible associations between richness and area and negative associations between richness and depth. Associations with human development were much weaker than with lake morphology and varied from positive (fish, planktonic crustaceans) to negative (diatoms). We conclude that taxonomic richness alone may be ambiguous value as an indicator of biological integrity in lakes and that its natural drivers must be controlled for prior to assessing anthropogenic effects.

Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Start Date: 05/01/1999
Completion Date: 05/01/1999
Record Last Revised: 12/22/2005
Record Created: 07/23/1999
Record Released: 07/23/1999
Record ID: 10036

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT