Removal of medium sized predators and the breeding success of ducks in Finland
A predator removal study was done in Finland to reveal the possible effects of mammalian predators on the breeding success of ducks. Predator removal/protection from hunting was most effective in northern Finland. Also in eastern Finland predator removal had some influence on predator numbers, where...
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ftczechacademysc:oai:kramerius.lib.cas.cz:uuid:8c13bdea-8339-18e6-115e-7cf9fcb3fb65 2024-03-17T08:59:25+00:00 Removal of medium sized predators and the breeding success of ducks in Finland Kauhala Kaarina https://kramerius.lib.cas.cz/view/uuid:8c13bdea-8339-18e6-115e-7cf9fcb3fb65 eng eng https://kramerius.lib.cas.cz/view/uuid:8c13bdea-8339-18e6-115e-7cf9fcb3fb65 American mink pine marten raccoon dog red fox duck breeding success predator removal article ftczechacademysc 2024-02-19T22:42:29Z A predator removal study was done in Finland to reveal the possible effects of mammalian predators on the breeding success of ducks. Predator removal/protection from hunting was most effective in northern Finland. Also in eastern Finland predator removal had some influence on predator numbers, whereas its impact on predator numbers was not so evident in southern Finland. In southern Finland, no increase in the breeding success of ducks was observed in the predator removal area, whereas in northern Finland the relative reproduction rate of diving ducks increased in the removal area and that of dabbling ducks declined in the control area. In eastern Finland, the breeding success of ducks declined in both areas. There was a positive relationship between the raccoon dog index and the relative reproduction rate of dabbling ducks in southern Finland, indicating that raccoon dog numbers probably are of minor importance for the breeding success of ducks. On the contrary, there was a negative relationship between the fox and marten indices and the breeding success of ducks in some areas. Marten and fox removal may thus have a positive effect on the breeding success of ducks in Finland. The effect of the American mink could not be verified in this study. Article in Journal/Newspaper Northern Finland Czech Academy of Sciences: dKNAV |
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Open Polar |
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Czech Academy of Sciences: dKNAV |
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ftczechacademysc |
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English |
topic |
American mink pine marten raccoon dog red fox duck breeding success predator removal |
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American mink pine marten raccoon dog red fox duck breeding success predator removal Kauhala Kaarina Removal of medium sized predators and the breeding success of ducks in Finland |
topic_facet |
American mink pine marten raccoon dog red fox duck breeding success predator removal |
description |
A predator removal study was done in Finland to reveal the possible effects of mammalian predators on the breeding success of ducks. Predator removal/protection from hunting was most effective in northern Finland. Also in eastern Finland predator removal had some influence on predator numbers, whereas its impact on predator numbers was not so evident in southern Finland. In southern Finland, no increase in the breeding success of ducks was observed in the predator removal area, whereas in northern Finland the relative reproduction rate of diving ducks increased in the removal area and that of dabbling ducks declined in the control area. In eastern Finland, the breeding success of ducks declined in both areas. There was a positive relationship between the raccoon dog index and the relative reproduction rate of dabbling ducks in southern Finland, indicating that raccoon dog numbers probably are of minor importance for the breeding success of ducks. On the contrary, there was a negative relationship between the fox and marten indices and the breeding success of ducks in some areas. Marten and fox removal may thus have a positive effect on the breeding success of ducks in Finland. The effect of the American mink could not be verified in this study. |
format |
Article in Journal/Newspaper |
author |
Kauhala Kaarina |
author_facet |
Kauhala Kaarina |
author_sort |
Kauhala Kaarina |
title |
Removal of medium sized predators and the breeding success of ducks in Finland |
title_short |
Removal of medium sized predators and the breeding success of ducks in Finland |
title_full |
Removal of medium sized predators and the breeding success of ducks in Finland |
title_fullStr |
Removal of medium sized predators and the breeding success of ducks in Finland |
title_full_unstemmed |
Removal of medium sized predators and the breeding success of ducks in Finland |
title_sort |
removal of medium sized predators and the breeding success of ducks in finland |
url |
https://kramerius.lib.cas.cz/view/uuid:8c13bdea-8339-18e6-115e-7cf9fcb3fb65 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
https://kramerius.lib.cas.cz/view/uuid:8c13bdea-8339-18e6-115e-7cf9fcb3fb65 |
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1793769936543285248 |