Evoluce diskriminace parazitických mláďat jejich hostiteli: proč je odmítání mláďat tak vzácné?

Kód výsledku v IS VaVaI

RIV/61989592:15310/06:00002664 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The evolution of nestling discrimination by hosts of parasitic birds: why is rejection so rare?

Popis výsledku v původním jazyce

Question: Why do hosts of parasitic birds defend against parasitic eggs but not nestlings? Data incorporated: Reported cases of parasitic chick discrimination or mimicry and all previously published explanations for the rarity of these phenomena. Analysis method: Contrasting the predictions of previous hypotheses and fitting available data from both parasitic and non-parasitic birds to assess the relative validity of each explanation. Results: None of the previously suggested hypotheses appears to provide a general explanation for the scarcity of chick discrimination. Various cognitive and behavioral traits potentially usable for discrimination of parasitic chicks are present in virtually all avian taxa, including host lineages, yet these traits are not used to reject parasites. Thus, low selection pressure imposed by rare parasites is the most likely general explanation for the absence of these adaptations in the context of brood parasitism. Based on this I predict that nestling discr

Název v anglickém jazyce

The evolution of nestling discrimination by hosts of parasitic birds: why is rejection so rare?

Popis výsledku anglicky

Question: Why do hosts of parasitic birds defend against parasitic eggs but not nestlings? Data incorporated: Reported cases of parasitic chick discrimination or mimicry and all previously published explanations for the rarity of these phenomena. Analysis method: Contrasting the predictions of previous hypotheses and fitting available data from both parasitic and non-parasitic birds to assess the relative validity of each explanation. Results: None of the previously suggested hypotheses appears to provide a general explanation for the scarcity of chick discrimination. Various cognitive and behavioral traits potentially usable for discrimination of parasitic chicks are present in virtually all avian taxa, including host lineages, yet these traits are not used to reject parasites. Thus, low selection pressure imposed by rare parasites is the most likely general explanation for the absence of these adaptations in the context of brood parasitism. Based on this I predict that nestling discr

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

GP206/03/D234: Konflikt rodič-potomek v kontextu koevoluce mezi hnízdním parazitem a jeho hostitelem

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Evolutionary Ecology Research

ISSN

1522?0613

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

785-802

Kód UT WoS článku

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EID výsledku v databázi Scopus

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