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Statements

Subject Item
n2:RIV%2F68081766%3A_____%2F11%3A00360044%21RIV12-AV0-68081766
rdf:type
skos:Concept n14:Vysledek
dcterms: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.
dcterms:title
Testing mechanistic explanations for mammalian predator responses to habitat edges Testing mechanistic explanations for mammalian predator responses to habitat edges
skos:prefLabel
Testing mechanistic explanations for mammalian predator responses to habitat edges Testing mechanistic explanations for mammalian predator responses to habitat edges
skos:notation
RIV/68081766:_____/11:00360044!RIV12-AV0-68081766
n14:predkladatel
n20:ico%3A68081766
n5:aktivita
n9:Z n9:S n9:P
n5:aktivity
P(1P05OC078), P(GA524/06/0687), P(LC06073), P(SP/2D3/60/08), S, Z(AV0Z60870520), Z(AV0Z60930519), Z(MSM0021620828), Z(MSM6007665801)
n5:cisloPeriodika
3
n5:dodaniDat
n12:2012
n5:domaciTvurceVysledku
n10:1668722
n5:druhVysledku
n17:J
n5:duvernostUdaju
n13:S
n5:entitaPredkladatele
n19:predkladatel
n5:idSjednocenehoVysledku
234901
n5:idVysledku
RIV/68081766:_____/11:00360044
n5:jazykVysledku
n15:eng
n5:klicovaSlova
Edge effect; Habitat fragmentation; Mesopredators; Nest predation; Prey distribution
n5:klicoveSlovo
n11:Nest%20predation n11:Mesopredators n11:Prey%20distribution n11:Edge%20effect n11:Habitat%20fragmentation
n5:kodStatuVydavatele
US - Spojené státy americké
n5:kontrolniKodProRIV
[E083A498F8A7]
n5:nazevZdroje
European Journal of Wildlife Research
n5:obor
n18:EH
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
5
n5:projekt
n6:GA524%2F06%2F0687 n6:1P05OC078 n6:LC06073 n6:SP%2F2D3%2F60%2F08
n5:rokUplatneniVysledku
n12:2011
n5:svazekPeriodika
57
n5:tvurceVysledku
Koubová, M. Šálek, Martin Svobodová, J. Kreisinger, J. Albrecht, Tomáš
n5:wos
000290771400009
n5:zamer
n8:MSM0021620828 n8:AV0Z60930519 n8:AV0Z60870520 n8:MSM6007665801
s:issn
1612-4642
s:numberOfPages
8
n16:doi
10.1007/s10344-010-0455-0