Egg mimicry, not the sight of a common cuckoo, is the cue for parasitic egg rejection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F23%3A00574579" target="_blank" >RIV/68081766:_____/23:00574579 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/23:00132101 RIV/00216208:11310/23:10467760

Výsledek na webu

<a href="https://academic.oup.com/beheco/advance-article/doi/10.1093/beheco/arad058/7224334" target="_blank" >https://academic.oup.com/beheco/advance-article/doi/10.1093/beheco/arad058/7224334</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/beheco/arad058" target="_blank" >10.1093/beheco/arad058</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Egg mimicry, not the sight of a common cuckoo, is the cue for parasitic egg rejection

Popis výsledku v původním jazyce

Many studies have found that if hosts observe a brood parasite at their nest, they use it as a cue to reject parasitic eggs. However, most previous work has simulated brood parasitic events by exposing a stuffed parasite near a host's nest. Responses to the presence of a real parasite have not yet been adequately studied under natural conditions. We therefore investigated whether great reed warblers (Acrocephalus arundinaceus) are more likely to reject a parasitic egg if they see a parasitizing common cuckoo (Cuculus canorus) at their nest than if the parasite approaches the host nest unnoticed. Using video recordings of 70 nests, we showed that spotting a cuckoo at the nest did not increase the rejection rate of parasitic eggs, even if hosts saw the cuckoo repeatedly. Hosts instead used the level of mimicry in the background color for cuckoo egg rejection. Since not every visit by the cuckoo leads to parasitism, seeing the brood parasite may not be a reliable enough cue for the host. Therefore, our results suggest that the sight of a cuckoo at the nest may not have as severe consequences for it as previously thought.

Název v anglickém jazyce

Egg mimicry, not the sight of a common cuckoo, is the cue for parasitic egg rejection

Popis výsledku anglicky

Many studies have found that if hosts observe a brood parasite at their nest, they use it as a cue to reject parasitic eggs. However, most previous work has simulated brood parasitic events by exposing a stuffed parasite near a host's nest. Responses to the presence of a real parasite have not yet been adequately studied under natural conditions. We therefore investigated whether great reed warblers (Acrocephalus arundinaceus) are more likely to reject a parasitic egg if they see a parasitizing common cuckoo (Cuculus canorus) at their nest than if the parasite approaches the host nest unnoticed. Using video recordings of 70 nests, we showed that spotting a cuckoo at the nest did not increase the rejection rate of parasitic eggs, even if hosts saw the cuckoo repeatedly. Hosts instead used the level of mimicry in the background color for cuckoo egg rejection. Since not every visit by the cuckoo leads to parasitism, seeing the brood parasite may not be a reliable enough cue for the host. Therefore, our results suggest that the sight of a cuckoo at the nest may not have as severe consequences for it as previously thought.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10615 - Ornithology

Projekt

<a href="/cs/project/GA22-26812S" target="_blank" >GA22-26812S: Koevoluční zápas mezi vysoce virulentním hnízdním parazitem a jeho hlavním hostitelem</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

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

1465-7279

Svazek periodika

34

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

891-897

Kód UT WoS článku

001028034900001

EID výsledku v databázi Scopus

2-s2.0-85174320132