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Habitat distribution of the mallard in relation to vegetation structure, food, and population density
Department of Applied Zoology, University of Helsinki.
Evo Game Research Station, Finnish Game and Fisheries Research Institute.
Department of Animal Ecology, Swedish University of Agricultural Sciences, Umeå. (Akvatisk biologi och kemi)
Department of Animal Ecology, Swedish University of Agricultural Sciences, Umeå.
1994 (Engelska)Ingår i: Hydrobiologia, ISSN 0018-8158, E-ISSN 1573-5117, Vol. 280, nr 1, s. 247-252Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The mallard (Anas platyrhynchos Linnaeus) is a generalist feeder, breeding in a wide range of habitats, yet showing considerable between site differences in density. Variations in density and habitat use may result from inter- and intra-specific competition, habitat structure or food. We studied habitat selection of the mallard in four regions of Finland and Sweden. In each region, ten lakes were chosen ranging from oligotrophic to eutrophic. Habitat distribution of the mallard did not differ between regions despite variation in the density of the species and congenerics. Mallard density did not correlate with vegetation structure, but increased with food abundance and the number and density of congenerics although there were regional differences in mallard response.

Ort, förlag, år, upplaga, sidor
1994. Vol. 280, nr 1, s. 247-252
Nyckelord [en]
MALLARD, HABITAT DISTRIBUTION, DENSITY, FOOD, VEGETATION, DABBLING DUCKS, NORTH-DAKOTA, WATERFOWL, ASSOCIATIONS, PATTERN, MARSH, GUILD, SIZE
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Biologiska vetenskaper
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URN: urn:nbn:se:hkr:diva-5400DOI: 10.1007/BF00027858ISI: A1994NK39900024ISBN: 0018-8158 (tryckt)OAI: oai:DiVA.org:hkr-5400DiVA, id: diva2:320519
Tillgänglig från: 2010-05-25 Skapad: 2009-12-07 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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