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Patterns of lake acidity and waterfowl communities
Department of Animal Ecology, Swedish University of Agricultural Sciences, Umeå. (Akvatisk biologi och kemi)
Department of Animal Ecology, Swedish University of Agricultural Sciences, Umeå.
Department of Applied Zoology, University of Helsinki.
Finnish Game and Fisheries Research Institute, Evo Game Research Station.
1994 (English)In: Hydrobiologia, ISSN 0018-8158, E-ISSN 1573-5117, Vol. 279-280, no 1, 201-206 p.Article in journal (Refereed) Published
Abstract [en]

Breeding waterfowl communities were studied in 28 lakes in three areas in North Europe, along gradients of acid precipitation and alkalinity that result in lake conditions ranging from unaffected to strongly acidified. Acidic lakes had generally sparser and less complex vegetation, and fewer invertebrates were caught in activity traps. There was neither correlation between pH and waterfowl species richness (genus Anas, family Anatidae, and waterfowl sensu latu tested separately), nor between pH and waterfowl diversity (Simpson's index). Further, pH and waterfowl population density (genus Anas, family Anatidae, and waterfowl sensu latu) were not correlated, but when functional rather than taxonomic groups were considered, pH and relative abundance of fish-eating species (Gaviidae and Podicipedidae) were correlated. However, the relative abundance of Bucephala clangula, a diving duck that may compete with fish for food, was not correlated with pH. Although individual species may be affected, community level responses of waterfowl to acidity are either absent or hard to detect at our sites.

Place, publisher, year, edition, pages
1994. Vol. 279-280, no 1, 201-206 p.
Keyword [en]
WATERFOWL, COMMUNITIES, PH, INVERTEBRATE FOOD RESOURCES, VEGETATION, INTERSPECIFIC COMPETITION, AQUATIC BIRDS, PREY
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:hkr:diva-5402DOI: 10.1007/BF00027854ISI: A1994NK39900020ISBN: 0018-8158 (print)OAI: oai:DiVA.org:hkr-5402DiVA: diva2:320511
Available from: 2010-05-25 Created: 2009-12-07 Last updated: 2013-10-01Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
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  • nn-NO
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  • Other locale
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