Common cuckoo females are not choosy when removing an egg during parasitism

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F16%3A00460270" target="_blank" >RIV/68081766:_____/16:00460270 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/16:10332841

Výsledek na webu

<a href="http://dx.doi.org/10.1093/beheco/arw085" target="_blank" >http://dx.doi.org/10.1093/beheco/arw085</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/beheco/arw085" target="_blank" >10.1093/beheco/arw085</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Common cuckoo females are not choosy when removing an egg during parasitism

Popis výsledku v původním jazyce

Females of avian brood parasites have evolved various tactics to succeed in their reproductive strategy. Many of these adaptations, for example speed and timing of egg laying or egg mimicry, have been investigated in detail. However, one peculiar habit of parasitic females is still not fully understood—egg removal by adult parasitic females before laying their own egg. Here, we examined 2 hypotheses to explain this behavior in the common cuckoo (Cuculus canorus). Both hypotheses explored if the cuckoo females can inspect eggs in host nests and selectively remove some of them to improve their fitness. First, we investigated the “parasite competition hypothesis, which proposes that the cuckoo removes an egg from the host nest to get rid of a previously laid parasitic egg from another cuckoo female. Second, we proposed and investigated a new “mimicry improvement hypothesis stating that the commonncuckoo female removes 1 host egg to improve mimicry of its egg in the host clutch and thus increase the chance of acceptance. Randomization tests revealed that cuckoo females are not selective and remove 1 randomly chosen egg from the host nest. We suggest that egg selection behavior could be too costly because it requires time and the cuckoo benefits most from minimizing the time spent at the nest due to aggressiveness of the host.

Název v anglickém jazyce

Common cuckoo females are not choosy when removing an egg during parasitism

Popis výsledku anglicky

Females of avian brood parasites have evolved various tactics to succeed in their reproductive strategy. Many of these adaptations, for example speed and timing of egg laying or egg mimicry, have been investigated in detail. However, one peculiar habit of parasitic females is still not fully understood—egg removal by adult parasitic females before laying their own egg. Here, we examined 2 hypotheses to explain this behavior in the common cuckoo (Cuculus canorus). Both hypotheses explored if the cuckoo females can inspect eggs in host nests and selectively remove some of them to improve their fitness. First, we investigated the “parasite competition hypothesis, which proposes that the cuckoo removes an egg from the host nest to get rid of a previously laid parasitic egg from another cuckoo female. Second, we proposed and investigated a new “mimicry improvement hypothesis stating that the commonncuckoo female removes 1 host egg to improve mimicry of its egg in the host clutch and thus increase the chance of acceptance. Randomization tests revealed that cuckoo females are not selective and remove 1 randomly chosen egg from the host nest. We suggest that egg selection behavior could be too costly because it requires time and the cuckoo benefits most from minimizing the time spent at the nest due to aggressiveness of the host.

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP506%2F12%2F2404" target="_blank" >GAP506/12/2404: Hostitelsko-parazitická interakce jako extrémní forma konfliktu rodič-potomek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Behavioral Ecology

ISSN

1045-2249

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1642-1649

Kód UT WoS článku

000389773900009

EID výsledku v databázi Scopus

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