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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. 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. (en)
Title	Testing mechanistic explanations for mammalian predator responses to habitat edges Testing mechanistic explanations for mammalian predator responses to habitat edges (en)
skos:prefLabel	Testing mechanistic explanations for mammalian predator responses to habitat edges Testing mechanistic explanations for mammalian predator responses to habitat edges (en)
skos:notation	RIV/68081766:_____/11:00360044!RIV12-AV0-68081766
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(1P05OC078), P(GA524/06/0687), P(LC06073), P(SP/2D3/60/08), S, Z(AV0Z60870520), Z(AV0Z60930519), Z(MSM0021620828), Z(MSM6007665801)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Albrecht, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav biologie obratlovců AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	234901
http://linked.open...ai/riv/idVysledku	RIV/68081766:_____/11:00360044
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Edge effect; Habitat fragmentation; Mesopredators; Nest predation; Prey distribution (en)
http://linked.open.../riv/klicoveSlovo	Habitat fragmentation Edge effect Mesopredators Nest predation Prey distribution
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[E083A498F8A7]
http://linked.open...i/riv/nazevZdroje	European Journal of Wildlife Research
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Biodiversity Research Center Importance of Red Fox in Different t Ecosystems of Central Europe Integrated research of the effects and consequences of artificially reared mallards (Anas platyrhynchos) on wetland ecosystems with the application of advanced ecological and molecular techniques. The game as a tool for the forest recreation and nature tourism in Czech Reoublic and its importance for the landscape management and the nature conservation
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	57
http://linked.open...iv/tvurceVysledku	Albrecht, Tomáš Svobodová, J. Kreisinger, J. Šálek, Martin Koubová, M.
http://linked.open...ain/vavai/riv/wos	000290771400009
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change Biodiverzita a ekologie obratlovců: Strategie ochrany a využívání přírodních populací Ekologické procesy v evoluci modelových skupin organismů EKOLOGICKÉ, EVOLUČNÍ A EXPERIMENTÁLNĚ BIOLOGICKÉ PŘÍSTUPY KE STUDIU VZNIKU A VÝZNAMU BIODIVERZITY
issn	1612-4642
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s10344-010-0455-0

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