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Distribution and effects of acidic deposition on wildlife and ecosystems

Actually published in 1987. Only meeting year given on publication.
By:
and
Edited by:
Peter Kaemar and J. Legath

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Abstract

Acidic deposition occurs over most of the United States and the deposition patterns and theoretical vulnerabilities of aquatic ecosystems to chemical changes can be delineated, but few data exist on concomitant biological effects. Hypothetical direct effects are limited primarily to toxicity of various heavy metals mobilized at reduced pH. Results of studies in Scandinavia suggest that aluminum interferes with avian reproduction near acidified lakes. Some amphibian populations located on acid-vulnerable substrates may be adversely affected by reduced pH in the vernal pools used for egg laying and larval growth. Indirect effects on populations are difficult to detect because few historical data exist for wildlife populations and trophic relationships in vulnerable areas. Current research in the U.S.A. focuses on measuring habitat characteristics, food availability, and avian use of vulnerable wetland habitats. Results of Scandinavian studies suggest that some species of waterfowl may prefer acidified, I fish-free habitats because invertebrates essential for meeting nutritional requirements are more easily obtained in the absence of competition from fish. However, avian species dependent on fish would be absent from these habitats. Alteration of either the vegetative structure or primary productivity of wetlands might indirectly affect avian populations by causing decreased invertebrate productivity and consequent food limitations for birds.

Additional Publication Details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
Distribution and effects of acidic deposition on wildlife and ecosystems
Year Published:
1987
Language:
English
Publisher:
University of Veterinary Medicine
Publisher location:
Ko?ice, Czechoslovakia
Contributing office(s):
Patuxent Wildlife Research Center
Description:
273
Larger Work Type:
Book
Larger Work Subtype:
Other Government Series
Larger Work Title:
Collected Reports from the Czechoslovak-American Symposium on Toxic Effects of Chemical Environmental Contaminants upon Production and Reproduction Ability in Free-Living Animals (held October 3-4, 1983).
First page:
221
Last page:
232
Number of Pages:
273