NDLI: Testing mechanistic explanations for mammalian predator responses to habitat edges

Content Provider	Springer Nature Link
Author	Svobodová, Jana Kreisinger, Jakub Šálek, Martin Koubová, Martina Albrecht, Tomáš
Copyright Year	2010
Abstract	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.
Starting Page	467
Ending Page	474
Page Count	8
File Format	PDF
ISSN	16124642
Journal	European Journal of Wildlife Research
Volume Number	57
Issue Number	3
e-ISSN	14390574
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-10-28
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Edge effect Habitat fragmentation Mesopredators Nest predation Prey distribution Animal Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics Management, Monitoring, Policy and Law Nature and Landscape Conservation

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