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Statements

Subject Item
n2:RIV%2F00023272%3A_____%2F13%3A%230002134%21RIV14-MK0-00023272
rdf:type
skos:Concept n11:Vysledek
dcterms:description
Theory predicts that optimality of life-long investment in reproduction is, among other factors, driven by the variability and predictability of the resources. Similarly, during the breeding season, single resource pulses characterized by short periods and high amplitudes enable strong numerical responses in their consumers. However, it is less well established how spatio-temporal dynamics in resource supplies influence the spatio-temporal variation of consumer reproduction. We used the common vole (Microtus arvalis)--white stork (Ciconia ciconia) resource--consumer model system to test the effect of increased temporal variation and periodicity of vole population dynamics on the strength of the local numerical response of storks. We estimated variability, cycle amplitude, and periodicity (by means of direct and delayed density dependence) in 13 Czech and Polish vole populations. Cross-correlation between annual stork productivity and vole abundance, characterizing the strength of the local numerical response of storks, increased when the vole population fluctuated more and population cycles were shorter. We further show that the onset of incubation of storks was delayed during the years of higher vole abundance. We demonstrate that high reproductive flexibility of a generalist consumer in tracking the temporal dynamics of its resource is driven by the properties of the local resource dynamics and we discuss possible mechanisms behind these patterns Theory predicts that optimality of life-long investment in reproduction is, among other factors, driven by the variability and predictability of the resources. Similarly, during the breeding season, single resource pulses characterized by short periods and high amplitudes enable strong numerical responses in their consumers. However, it is less well established how spatio-temporal dynamics in resource supplies influence the spatio-temporal variation of consumer reproduction. We used the common vole (Microtus arvalis)--white stork (Ciconia ciconia) resource--consumer model system to test the effect of increased temporal variation and periodicity of vole population dynamics on the strength of the local numerical response of storks. We estimated variability, cycle amplitude, and periodicity (by means of direct and delayed density dependence) in 13 Czech and Polish vole populations. Cross-correlation between annual stork productivity and vole abundance, characterizing the strength of the local numerical response of storks, increased when the vole population fluctuated more and population cycles were shorter. We further show that the onset of incubation of storks was delayed during the years of higher vole abundance. We demonstrate that high reproductive flexibility of a generalist consumer in tracking the temporal dynamics of its resource is driven by the properties of the local resource dynamics and we discuss possible mechanisms behind these patterns
dcterms:title
Cyclicity and variability in prey dynamics strengthens predator numerical response: the effects of vole fluctuations on white stork productivity Cyclicity and variability in prey dynamics strengthens predator numerical response: the effects of vole fluctuations on white stork productivity
skos:prefLabel
Cyclicity and variability in prey dynamics strengthens predator numerical response: the effects of vole fluctuations on white stork productivity Cyclicity and variability in prey dynamics strengthens predator numerical response: the effects of vole fluctuations on white stork productivity
skos:notation
RIV/00023272:_____/13:#0002134!RIV14-MK0-00023272
n11:predkladatel
n12:ico%3A00023272
n3:aktivita
n6:I n6:S n6:P n6:Z
n3:aktivity
I, P(LC06073), S, Z(AV0Z60930519), Z(MSM0021620828)
n3:cisloPeriodika
2
n3:dodaniDat
n9:2014
n3:domaciTvurceVysledku
n10:9338446
n3:druhVysledku
n4:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
67616
n3:idVysledku
RIV/00023272:_____/13:#0002134
n3:jazykVysledku
n15:eng
n3:klicovaSlova
white stork
n3:klicoveSlovo
n7:white%20stork
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[619EB1BB5FB5]
n3:nazevZdroje
Population Ecology
n3:obor
n18:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
8
n3:projekt
n16:LC06073
n3:rokUplatneniVysledku
n9:2013
n3:svazekPeriodika
55
n3:tvurceVysledku
Tkadlec, Emil Cepák, Jaroslav Hušek, Jan Adamík, Peter Mikolášková, Eva Albrecht, Tomáš Stenseth, Nils Chr. Kania, Wojciech
n3:wos
000320561200010
n3:zamer
n13:MSM0021620828 n13:AV0Z60930519
s:issn
1438-3896
s:numberOfPages
13
n20:doi
10.1007/s10144-013-0366-5