期刊
HYDROBIOLOGIA
卷 575, 期 -, 页码 389-399出版社
SPRINGER
DOI: 10.1007/s10750-006-0385-8
关键词
mcroinvertebrates; abundance; diversity; habitat heterogeneity; biomass
We analyzed benthic samples (n = 128) collected from four cypress-tree population areas within a large, shallow Arkansas reservoir over a 2-year period to investigate macroinvertebrate community distribution patterns and their relation to physical and chemical parameters. The calculated biomass, abundance and diversity of the benthic macroinvertebrate community varied significantly both temporally and spatially. Variations of these variables are most likely explained by significant differences in the concentration of carbon and nitrogen in sediments across lake sites, and on a smaller scale, the presence or absence of cypress trees. Benthic macroinvertebrate abundance, biomass, and diversity significantly decreased with distance from tree.
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