Drainage-Wide Effects of Timber Harvesting on the Structure of Stream Fish Assemblages in Southeastern Oklahoma
作者:
D.Allen Rutherford,
AnthonyA. Echelle,
O.Eugene Maughan,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1992)
卷期:
Volume 121,
issue 6
页码: 716-728
ISSN:0002-8487
年代: 1992
DOI:10.1577/1548-8659(1992)121<0716:DEOTHO>2.3.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
We examined associations between timber harvesting (clear-cutting and associated activities) and structure of assemblages of stream fishes across 89 localities in the Little River drainage, Oklahoma. Timber-harvesting activities were quantified as the percentage of the watershed (upstream from each locality) covered by clear-cuts in each of eight different age-classes. We found significant associations with one or more age-classes of clear-cut for three indices of species diversity, 14 of 29 common fish species, and three of five multivariate axes (principal components) of covariation among species abundances. Further analyses indicated a nonrandom association between life history strategy (r- orK-selection) and whether the abundance of individual species was related positively or negatively to clear-cuts of different ages. The results suggest thatr-selected species (small, short-lived) may respond quickly to clear-cutting perturbations whereasK-selected species (large, long-lived) exhibit a delayed response. The results of this study, together with an earlier survey of faunal changes, suggest that the effects of clear-cutting in the Little River system are limited to temporary changes in local fish assemblage structure.
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