Cowards or clever guys: an alternative nest defence strategy employed by shrikes against magpies

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F21%3A43903844" target="_blank" >RIV/60076658:12220/21:43903844 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/21:43903844

Result on the web

<a href="https://link.springer.com/article/10.1007/s10071-021-01552-x" target="_blank" >https://link.springer.com/article/10.1007/s10071-021-01552-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10071-021-01552-x" target="_blank" >10.1007/s10071-021-01552-x</a>

Result language

angličtina

Original language name

Cowards or clever guys: an alternative nest defence strategy employed by shrikes against magpies

Original language description

Red-backed shrikes (Lanius collurio) show a substantial variability in their nest defence behaviour, which usually follows the rules of optimal parental behaviour, vigorously attacking egg and chick predators and only passively guarding against harmless animals. Nevertheless, shrikes hesitate to attack the Eurasian magpie (Pica pica), which specializes in plundering passerine nests. Our previous studies have suggested that this behaviour may be the result of an alternative defence strategy, relying on nest crypsis. To test this hypothesis, at the shrike nests, we presented a magpie dummy associated with playbacks drawing the predators&apos; attention to the presence of the nest. We predicted that the presentation of a magpie dummy associated with shrike alarm calls moves the parents to action, causing them to chase the magpie away from the nest. We showed that the presence of a magpie dummy associated with shrike alarm calls elicits a significantly more active response in shrike parents compared to a magpie dummy associated with neutral song. Parents actively moved around the dummy and produced alarm calls; nevertheless, most of the tested pairs hesitated to attack the dummy. We may conclude that the low nest defence activity of shrike parents towards magpie dummy was partly the result of an alternative strategy, which may be cancelled out by alerting the predator to the location of the nest; nevertheless, shrikes seem to be afraid of the magpie and hesitate to attack it physically

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

Animal Cognition

ISSN

1435-9448

e-ISSN

—

Volume of the periodical

Neuveden

Issue of the periodical within the volume

2021-09-01

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

1-11

UT code for WoS article

000687910100001

EID of the result in the Scopus database

2-s2.0-85113386099