Predation of the alien American mink Mustela vison on native crayfish populations in middle-sized streams in central and western Bohemia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F09%3A00372214" target="_blank" >RIV/67179843:_____/09:00372214 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Predation of the alien American mink Mustela vison on native crayfish populations in middle-sized streams in central and western Bohemia

Original language description

The impact of predation by alien American mink (Mustela vison) on endangered stone crayfish (Austropotamobius torrentium) was examined in middle-sized streams in central and western Bohemia. The most frequent food source of the American mink were crustaceans, followed by mammals, amphibians and fish. Crustaceans consisted entirely of one species, the stone crayfish, which was represented in 82% of all collected mink droppings. The identification of predation of the American mink on stone crayfish was based on the collection of prey remains during the period monitored. Predation rates at particular localities were highly variable (0.85?21.5%, averag = 7.4%), and decreased significantly in winter periods. The use of crayfish seems to reflect their spatial availability, suggested by the good correspondence between the population density and the number of prey remains. This study suggests that alien mink could be an important mortality factor for stone crayfish populations on a local scale

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Folia zoologica

ISSN

0139-7893

e-ISSN

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Volume of the periodical

58

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

45-56

UT code for WoS article

000264774900006

EID of the result in the Scopus database

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