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Testing mechanistic explanations for mammalian predator responses to habitat edges
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SYSNO ASEP 0360044 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Testing mechanistic explanations for mammalian predator responses to habitat edges Author(s) Svobodová, J. (CZ)
Kreisinger, J. (CZ)
Šálek, Martin (UEK-B)
Koubová, M. (CZ)
Albrecht, Tomáš (UBO-W) RID, SAI, ORCIDNumber of authors 5 Source Title European Journal of Wildlife Research. - : Springer - ISSN 1612-4642
Roč. 57, č. 3 (2011), s. 467-474Number of pages 8 s. Language eng - English Country US - United States Keywords Edge effect ; Habitat fragmentation ; Mesopredators ; Nest predation ; Prey distribution Subject RIV EH - Ecology, Behaviour R&D Projects 1P05OC078 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA524/06/0687 GA ČR - Czech Science Foundation (CSF) LC06073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60930519 - UBO-W (2005-2011) AV0Z60870520 - UEK-B (2005-2011) UT WOS 000290771400009 EID SCOPUS 79956288669 DOI 10.1007/s10344-010-0455-0 Annotation Increased predator activity along habitat edges (the edge effect) is often documented in the temperate zone, but earlier studies have rarely been able to explicitly test the suggested mechanisms underlining this phenomenon. In this study, we measured the distribution of mammalian predators by scent stations and their main prey (rodents) in four types of landscape elements corresponding to an edge gradient between two habitat types; grassland and forest. We found a contrasting pattern in carnivore activities between years. Whereas carnivores did not exhibit a significant occurrence along the forest-grassland edge in the first year with low prey abundance, they were more likely to be detected along habitat edges in the subsequent year with high prey abundance. Our results do not suggest that the increased activity of carnivores at habitat edges arises as a consequence of predator overflow from higher quality habitat through the edge into lower quality habitat, but showed that most predator species focus their activity specifically to the edge structure. On the other hand, our data do not provide straightforward support for the hypothesis that predator edge preferences are caused by a spatial gradient in carnivores' main prey-rodents. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2012
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