Removal of medium-sized predators and the breeding success of ducks in Finland
作者： Kaarina Kauhala
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摘要: A predator removal study was done in Finland to reveal the possible effects of mammalian predators on breeding success ducks. Predator removal/protection from hunting most effective northern Finland. Also ineastern had some influence numbers, whereas its impact numbers not so evident southern In Finland, no increase ducks observed area, relative reproduction rate diving increased area and that dabbling declined control area. eastern both areas. There a positive relationship between raccoon dog index indicating probably are minor importance for On contrary, there negative fox marten indices Marten may thus have effect The American mink could be verified this study.
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