BigCB Catalog Detail: "ECO DATA: Productivity, consumers, and the structure of a river food chain"
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DatasetID 363
Name ECO DATA: Productivity, consumers, and the structure of a river food chain
Description We tested models of food chain dynamics in experimentally manipulated channels within a natural river. As light levels increased, primary productivity and the biomass of algae and primary predators increased, but the biomass of grazers remained relatively constant. In the presence of a fourth trophic level, algae and primary predators decreased, but grazers increased. These results match predictions of food chain models based on classical predator-prey theory and suggest that
simple models of multitrophic level interactions are sometimes sufficient to predict the responses of natural communities to changes in environmental productivity and predators.
Physical Location
Publisher/Owner Ecology; J. TIMOTHY WOOTTON, MARY E. POWER
Publication Date 1993-02-00
Permissions Undetermined
Source
Contact
Type Species List
Subject Many
Geo. Extent Angelo Reserve
URL http://www.ncbi.nlm.nih.gov/pmc/articles/PMC45877/pdf/pnas01102-0255.pdf
NRS Registry? yes
Format Undetermined
Timespan Start 1991
Timespan End 1991
Total Items 13
Databased Items   (as of 2013-08-05)
Comments
Entered By Tammy Dong
Last Updated 2013-09-05 14:59:21

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