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Fast and furious: host aggression modulates behaviour of brood parasites

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F21%3A00540691" target="_blank" >RIV/68081766:_____/21:00540691 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216224:14310/21:00123295

  • Result on the web

    <a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.12930" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.12930</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/ibi.12930" target="_blank" >10.1111/ibi.12930</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Fast and furious: host aggression modulates behaviour of brood parasites

  • Original language description

    Avian brood parasites pose a serious threat to hosts, substantially reducing their fitness, which selects for the evolution of host defences. A classic example of a host frontline defence is mobbing, which frequently includes contact attacking of brood parasites. Here, we investigated how the nest defence of a very aggressive host, the Great Reed Warbler Acrocephalus arundinaceus, influences the speed of egg-laying and egg-removing behaviour of its brood parasite – the Common Cuckoo Cuculus canorus. We video-recorded 168 brood parasitic events at 102 active host nests and found that Cuckoos avoided host mobbing in 62% of cases. If hosts spotted the Cuckoo at their nests, they almost always attacked it (91 of 104 cases, 88%), however, such attacks only rarely and temporarily prevented Cuckoos from parasitizing (11 additional cases). When attacked, Cuckoos parasitized host nests significantly faster and left them immediately after laying. However, when not attacked, Cuckoos frequently stayed at or near the nest, suggesting that host aggression, rather than the risk of being spotted, influences the speed of brood parasitism in this species. Further, we found that Cuckoos performed egg-removing behaviour in all parasitic events without regard to host aggression. As a result, Cuckoos removed at least one egg during all brood parasitism events except those when the egg slipped from their beaks when they were attacked by hosts and, thus, remained in the nest (in nine of 82 cases when they were attacked, 10.9%). This indicates that egg-removing behaviour is not costly for the Common Cuckoo and is an essential part of its parasitism strategy, widening our understanding of this elusive behaviour.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10615 - Ornithology

Result continuities

  • Project

    <a href="/en/project/GA17-12262S" target="_blank" >GA17-12262S: Reproductive strategies of an obligate brood parasite: host selection, offspring sex allocation and individual success</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Ibis

  • ISSN

    0019-1019

  • e-ISSN

    1474-919X

  • Volume of the periodical

    163

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    10

  • Pages from-to

    824-833

  • UT code for WoS article

    000620488400001

  • EID of the result in the Scopus database

    2-s2.0-85101273758