Density-dependent breeding success in mallards Anas platyrhynchos on a eutrophic lake

作者: Johan Elmberg

DOI: 10.2981/WLB.2003.001

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摘要: Census data from a eutrophic lake collected in 1987-1999 were used to study nesting and breeding success mallards Anas platyrhynchos. In each year there 6-19 pair counts 13-34 brood cou ...

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