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Statements

Subject Item
n2:RIV%2F60077395%3A_____%2F03%3A60033039%21RIV%2F2004%2FAV0%2FA60004%2FN
rdf:type
skos:Concept n11:Vysledek
dcterms:description
Ecological studies of direct and indirect interactions in food webs usually represent systems as unique configurations such as keystone predation, exploitative competition, trophic cascades, or intraguild predation. Food web dynamics are then studied using model systems that are unique to the particular configuration. In an endeavor to develop a more unified theory of food web structure and function, we explore here model systems in which a consumer species forages adaptively on two resource species along a gradient of environmental productivity and predation mortality. We explore the nature of trophic interactions under three different assumptions about what constitutes a resource and the spatial distribution of resources. We first examine a consumer (herbivore) feeding on two resources (plants)that are distributed randomly in the environment. We extend this to the case in which each plant resource occurs in a discrete patch. Finally, we examine a variant of the patch selection case in which the cons Ecological studies of direct and indirect interactions in food webs usually represent systems as unique configurations such as keystone predation, exploitative competition, trophic cascades, or intraguild predation. Food web dynamics are then studied using model systems that are unique to the particular configuration. In an endeavor to develop a more unified theory of food web structure and function, we explore here model systems in which a consumer species forages adaptively on two resource species along a gradient of environmental productivity and predation mortality. We explore the nature of trophic interactions under three different assumptions about what constitutes a resource and the spatial distribution of resources. We first examine a consumer (herbivore) feeding on two resources (plants)that are distributed randomly in the environment. We extend this to the case in which each plant resource occurs in a discrete patch. Finally, we examine a variant of the patch selection case in which the cons
dcterms:title
Adaptive foraging and flexible food web topology. Adaptive foraging and flexible food web topology.
skos:prefLabel
Adaptive foraging and flexible food web topology. Adaptive foraging and flexible food web topology.
skos:notation
RIV/60077395:_____/03:60033039!RIV/2004/AV0/A60004/N
n3:strany
623;652
n3:aktivita
n17:Z n17:P
n3:aktivity
P(GA201/03/0091), Z(AV0Z5007907)
n3:cisloPeriodika
N/A
n3:dodaniDat
n12:2004
n3:domaciTvurceVysledku
n8:8827842
n3:druhVysledku
n4:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
597441
n3:idVysledku
RIV/60077395:_____/03:60033039
n3:jazykVysledku
n5:eng
n3:klicovaSlova
adaptive foraging; food chain; food web structure
n3:klicoveSlovo
n14:food%20chain n14:food%20web%20structure n14:adaptive%20foraging
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[35C6EE891A23]
n3:nazevZdroje
Evolutionary Ecology Research
n3:obor
n13:EH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n7:GA201%2F03%2F0091
n3:rokUplatneniVysledku
n12:2003
n3:svazekPeriodika
5
n3:tvurceVysledku
Křivan, Vlastimil Schmitz, O.
n3:zamer
n18:AV0Z5007907
s:issn
1522-0613
s:numberOfPages
30