About: Why is mimicry in cuckoo eggs sometimes so poor?

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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	Je prezentována hypotéza, že nekvalitní mimikry vajec hnízdních parazitů mohou být výsledkem nenáhodné parazitace jedinců hostitelského druhu v závislosti na věkově determinovaném patternu výběra místa zahnízdění. To by mohlo vést k vyšší parazitaci naivních hostelů, kteří akceptují parazitismus, zatímco zkušení hostitelé, kteří se umí bránit, by měli nižší riziko parazitace. To by nevyhnutelně vedlo k zpomalení koevoluce parazit-hostitel. (cs) I propose that the existence of imperfect adaptations (e.g. egg mimicry) in brood parasites and their hosts (e.g. discrimination abilities) could reflect age-dependent territory and nest-site selection patterns of the host. Studies of various passerines indicate that (1) older breeders tend to occupy nest-sites of higher quality than do young birds (ideal despotic distribution resulting from interference competition), (2) nest-site selection affects the risk of parasitism in various habitats, (3) egg recognition in passerines has a strong learning component (therefore naive breeders tend to accept whereas older birds tend to reject parasitic eggs). Because young naive birds, who tend to accept parasitic eggs, usually breed in low-quality areas where they are frequently parasitised, while old experienced birds, who tend to reject parasitic eggs, breed in high-quality areas where they are rarely parasitised, the distribution of acceptors and rejecters with respect to the risk of parasitism is non-random I propose that the existence of imperfect adaptations (e.g. egg mimicry) in brood parasites and their hosts (e.g. discrimination abilities) could reflect age-dependent territory and nest-site selection patterns of the host. Studies of various passerines indicate that (1) older breeders tend to occupy nest-sites of higher quality than do young birds (ideal despotic distribution resulting from interference competition), (2) nest-site selection affects the risk of parasitism in various habitats, (3) egg recognition in passerines has a strong learning component (therefore naive breeders tend to accept whereas older birds tend to reject parasitic eggs). Because young naive birds, who tend to accept parasitic eggs, usually breed in low-quality areas where they are frequently parasitised, while old experienced birds, who tend to reject parasitic eggs, breed in high-quality areas where they are rarely parasitised, the distribution of acceptors and rejecters with respect to the risk of parasitism is non-random (en)
Title	Why is mimicry in cuckoo eggs sometimes so poor? Why is mimicry in cuckoo eggs sometimes so poor? (en) Proč mají kukaččí vejce v některých případech tak špatná mimikry? (cs)
skos:prefLabel	Why is mimicry in cuckoo eggs sometimes so poor? Why is mimicry in cuckoo eggs sometimes so poor? (en) Proč mají kukaččí vejce v některých případech tak špatná mimikry? (cs)
skos:notation	RIV/61989592:15310/02:00003315!RIV07-MSM-15310___
http://linked.open.../vavai/riv/strany	302-305
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 153100012)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Grim, 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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	670764
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/02:00003315
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	mimicry; cuckoo eggs (en)
http://linked.open.../riv/klicoveSlovo	mimicry cuckoo eggs
http://linked.open...odStatuVydavatele	DK - Dánské království
http://linked.open...ontrolniKodProRIV	[4E284A9BA867]
http://linked.open...i/riv/nazevZdroje	Journal of Avian Biology
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2002
http://linked.open...v/svazekPeriodika	33
http://linked.open...iv/tvurceVysledku	Grim, Tomáš
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20153100012
issn	0908-8857
number of pages	4 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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