Habitat distribution of the mallard in relation to vegetation structure, food, and population density

Habitat distribution of the mallard in relation to vegetation structure, food, and population density

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 hab...

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Bibliographic Details
Published in:Hydrobiologia Vol. 279-280; no. 1; pp. 247 - 252
Main Authors: Nummi, P., P ys, H., Elmberg, J., Sj berg, K.
Format: Journal Article Conference Proceeding
Language:English
Published: 01-04-1994
Subjects:
Anas platyrhynchos
ASSOCIATIONS
Biologi
Biological Sciences
Biologiska vetenskaper
Biology
DABBLING DUCKS
DENSITY
FOOD
Freshwater
GUILD
HABITAT DISTRIBUTION
MALLARD
MARSH
Natural Sciences
Naturvetenskap
NORTH-DAKOTA
PATTERN
SIZE
VEGETATION
WATERFOWL
Sweden
Finland
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Summary: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.
Bibliography:SourceType-Books-1
ObjectType-Book-1
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SourceType-Conference Papers & Proceedings-2
ISSN:0018-8158
1573-5117
1573-5117
DOI:10.1007/BF00027858