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001-es BibID:	BIBFORM005420
Első szerző:	Hauber, Mark E.
Cím:	Experimental shift in hosts acceptance threshold of inaccurate-mimic brood parasite eggs / Márk E. Hauber, Csaba Moskát and Miklós Bán
Dátum:	2006
Megjegyzések:	Hosts are expected to evolve resistance stra- tegies that efficiently detect and resist exposure to virulent parasites and pathogens. When rec- ognition is not error-proof, the acceptance threshold used by hosts to recognize parasites should be context dependent and become more restrictive with increasing predictability of parasitism. Here, we demonstrate that decisions of great reed warblers Acrocephalus arundinaceus to reject parasitism by the com- mon cuckoo Cuculus canorus vary adaptively within a single egg-laying bout. Hosts typically accept one of their own eggs with experimen- tally added spots and the background colour left visible. In contrast, hosts reject such spotted eggs when individuals had been previously exposed to and rejected one of their own eggs whose background colour had been entirely masked. These results support patterns of adaptive modulation of antiparasitic strategies through shifts in the acceptance threshold of hosts and suggest a critical role for experience in the discrimination decisions between inac- curate-mimic parasite eggs and hosts' own eggs.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Biology Letters. - 2 (2006), p. 177-180. -
További szerzők:	Bán Miklós (1975-) (biológus) Moskát Csaba
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