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Multiple stresses from a single agent: Diverse responses to the experimental acidification of Little Rock Lake, Wisconsin

Limnology and Oceanography

By:
, , , , , , , , , , ,

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Abstract

A single stress, acidification with sulfuric acid, was applied to Little Rack Lake in a whole-ecosystem manipulation. We documented a wide range of responses to the acidification, including increases in the concentrations of various chemicals, shifts in microbial processes and a major increase in water clarity to UV-B radiation. Each of these changes could in itself be considered as a separate ecosystem stress that is distinct from the intended manipulation. Acidification in Little Rock Lake was accompanied by a number of substantial changes in the occurrence of organisms. A series of detailed investigations indicates that the mechanisms underlying these organismal changes are varied but cannot usually be tied to the direct effects of acidification. Overall, our results demonstrate how multiple stresses can arise from a single agent operating on an ecosystem and suggest that singly operating stresses may actually be quite rare.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Multiple stresses from a single agent: Diverse responses to the experimental acidification of Little Rock Lake, Wisconsin
Series title:
Limnology and Oceanography
Volume
44
Issue:
3 (part2)
Year Published:
1999
Language:
English
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 784-794
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Limnology and Oceanography
First page:
784
Last page:
794
Number of Pages:
11