Removal of American mink increases the success of simulated nests in linear habitat

0325111 - ÚBO 2009 RIV AU eng J - Journal Article
Padyšáková, E. - Šálek, Martin - Poledník, L. - Sedláček, František - Albrecht, Tomáš
Removal of American mink increases the success of simulated nests in linear habitat.
[Odstranění norka amerického zvyšuje úspěšnost umělých hnízd.]
Wildlife Research. Roč. 36, č. 3 (2009), s. 225-230. ISSN 1035-3712. E-ISSN 1448-5494
R&D Projects: GA MŠMT LC06073
Grant - others:GA MŽP(CZ) SE/620/1/03; GA MŽP(CZ) SP/2D3/60/08
Institutional research plan: CEZ:AV0Z60870520; CEZ:AV0Z60930519
Keywords : mink * nest predation * introduction * allien species
Subject RIV: EH - Ecology, Behaviour
Impact factor: 1.222, year: 2009

Alien species of predators may negatively influence the breeding success of waterfowl. Previous studies have tested whether predator removal causes an increase in nest success and breeding densities; however, conclusions have been contradictory. Here we examine the impact of the removal of introduced American mink, Mustela vison, on the survival of simulated waterfowl nests in two treatment and two control transects. Nest survival was recorded during two periods (June and July), with minks removed after the first replicate. Whereas nest survival in control transects slightly decreased from June to July, the opposite trend, i.e. an increase in nest survival, was apparent in the treatment transects. On the basis of the results, we suggest that a local reduction in mink populations is an effective short-term tool for the conservation of protected waterfowl species. Our study adds to others, reporting potentially adverse effects of alien, introduced, carnivorous species on local biota.

Zavlečené druhy predátorů mohou negativně ovlivňovat populace vodních ptáků. Zde sledujeme vliv odstranění norka amerického na úspěšnost umělých hnízd v lineárních transeptech podél řeky Jihlavy. Výsledky jasně ukázaly krátkodobý pozitivní efekt odstranění norka na přežívání hnízd.
Permanent Link: http://hdl.handle.net/11104/0172636