The nest defence by the red-backed shrike Lanius collurio - support for the vulnerability hypothesis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897200" target="_blank" >RIV/60076658:12310/18:43897200 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/18:10392186 RIV/44555601:13440/18:43893957
Result on the web
<a href="https://kopernio.com/viewer?doi=10.1111/jav.01726&route=6" target="_blank" >https://kopernio.com/viewer?doi=10.1111/jav.01726&route=6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jav.01726" target="_blank" >10.1111/jav.01726</a>

Result language
angličtina
Original language name
The nest defence by the red-backed shrike Lanius collurio - support for the vulnerability hypothesis
Original language description
The majority of altricial bird species defend their brood against predators more intensively in nestlings rather than eggs stage. Several hypotheses have been proposed to explain this difference. The majority of existing experimental studies have recorded a gradually increasing intensity of nest defence supporting the reproductive value hypothesis. We have compared nest defence in two nesting stages of the red-backed shrike against two predators of adult birds and against two predators of nests. While the nests with nestlings were defended by parents against three out of four predators, nests with eggs were almost not defended at all. This rapid change in parent nest defence supports rather the vulnerability hypothesis, predicting that the threat to nests with nestlings increases rapidly after hatching, as they became more conspicuous due to their begging and parental provisioning. Unlike most of the species tested previously, the red-backed shrike uses very vigorous mobbing towards predators. We suggest that the occurrence of this active mobbing (strikes, including physical contact) is a good proxy of the current threat to the nest.
Czech name
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Czech description
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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

Project
<a href="/en/project/IAA601410803" target="_blank" >IAA601410803: Recognition of predators and other dangerous organisms by terrestrial vertebrates</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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