About: Are great tits (Parus major) really optimal foragers?

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this study, we test the classical prey model of optimal-foraging theory with great tits (Parus major) feeding on two types of mealworms presented on a conveyor belt. Contrary to the results of some previous experiments, prey types were given to birds in random order, therefore birds could not predict their next prey item. We tested birds' diet choices at four different prey-encounter rates. Our results show that in 95% of cases great tits consumed the more profitable prey type upon encounter. On the other hand, consumption of the less profitable prey type did not differ statistically from the 'always-attack' strategy in 77% of cases when the rate of encounter with the more profitable prey was below a critical value, and did differ from that strategy in 67% of cases when the rate of encounter with the more profitable prey was above that critical value. Contrary to predictions of the classical prey model of optimal-foraging theory, our birds never completely excluded the less profitable prey type fro In this study, we test the classical prey model of optimal-foraging theory with great tits (Parus major) feeding on two types of mealworms presented on a conveyor belt. Contrary to the results of some previous experiments, prey types were given to birds in random order, therefore birds could not predict their next prey item. We tested birds' diet choices at four different prey-encounter rates. Our results show that in 95% of cases great tits consumed the more profitable prey type upon encounter. On the other hand, consumption of the less profitable prey type did not differ statistically from the 'always-attack' strategy in 77% of cases when the rate of encounter with the more profitable prey was below a critical value, and did differ from that strategy in 67% of cases when the rate of encounter with the more profitable prey was above that critical value. Contrary to predictions of the classical prey model of optimal-foraging theory, our birds never completely excluded the less profitable prey type fro (en)
Title	Are great tits (Parus major) really optimal foragers? Are great tits (Parus major) really optimal foragers? (en)
skos:prefLabel	Are great tits (Parus major) really optimal foragers? Are great tits (Parus major) really optimal foragers? (en)
skos:notation	RIV/60077395:_____/03:60033052!RIV/2004/AV0/A60004/N
http://linked.open.../vavai/riv/strany	780;788
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA6007303), Z(AV0Z5007907), Z(MSM 123100004)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Berec, Luděk Berec, Michal Křivan, Vlastimil
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	Entomologický ústav AV ČR
http://linked.open...dnocenehoVysledku	599057
http://linked.open...ai/riv/idVysledku	RIV/60077395:_____/03:60033052
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Optimal foraging theory; optimal prey selection (en)
http://linked.open.../riv/klicoveSlovo	Optimal foraging theory optimal prey selection
http://linked.open...odStatuVydavatele	CA - Kanada
http://linked.open...ontrolniKodProRIV	[4E9715530074]
http://linked.open...i/riv/nazevZdroje	Canadian Journal of Zoology-Revue Canadienne de Zoologie
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Habitat selection by prodators: the effect of competition
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	81
http://linked.open...iv/tvurceVysledku	Berec, Michal Berec, Luděk Křivan, Vlastimil
http://linked.open...n/vavai/riv/zamer	The use of insects for quality assessment and possible management of the ecosystems in Central Europe http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20123100004
issn	0008-4301
number of pages	9 (xsd:int)

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