| ČERNÝ, Martin a Miroslav ŠÁLEK. Anti-predator function of not covering eggs in the initial phase of nesting in Grey Partridge Perdix perdix: a field experiment. Bird Study. Abingdon: Taylor & Francis Ltd, 2020, roč. 67, č. 1, s. 104-108. ISSN 0006-3657. Dostupné z: https://dx.doi.org/10.1080/00063657.2020.1780194. |
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@article{1714117,
author = {Černý, Martin and Šálek, Miroslav},
article_location = {Abingdon},
article_number = {1},
doi = {http://dx.doi.org/10.1080/00063657.2020.1780194},
keywords = {antipredator defense; bait; egg; female; gamebird; nest site; nesting; predation risk;},
language = {eng},
issn = {0006-3657},
journal = {Bird Study},
title = {Anti-predator function of not covering eggs in the initial phase of nesting in Grey Partridge Perdix perdix: a field experiment},
url = {https://doi.org/10.1080/00063657.2020.1780194},
volume = {67},
year = {2020}
}
TY - JOUR
ID - 1714117
AU - Černý, Martin - Šálek, Miroslav
PY - 2020
TI - Anti-predator function of not covering eggs in the initial phase of nesting in Grey Partridge Perdix perdix: a field experiment
JF - Bird Study
VL - 67
IS - 1
SP - 104-108
EP - 104-108
PB - Taylor & Francis Ltd
SN - 00063657
KW - antipredator defense
KW - bait
KW - egg
KW - female
KW - gamebird
KW - nest site
KW - nesting
KW - predation risk;
UR - https://doi.org/10.1080/00063657.2020.1780194
L2 - https://doi.org/10.1080/00063657.2020.1780194
N2 - Capsule: An experiment in the field supports the hypothesis that Grey Partridges Perdix perdix purposely expose their first laid eggs in order to test the predation risk at their nest site. Aims: To test the hypothesis that female Grey Partridges leave first laid eggs uncovered to assess the predation risk at their chosen nesting site. Methods: Four area-independent experiments with artificial nests were used. Predation risk was estimated by daily nest failure rate. Generalized linear mixed-effects models were used in statistical analysis. Results: We found that Grey Partridge females could predict nest site safety. At nest sites where the first uncovered egg was depredated, there was a higher predation risk for the whole clutch. Conclusion: Our data statistically support the hypothesis that leaving the first egg uncovered serves to provide a more conspicuous bait for potential predators and could be a female tactic for better recognizing predation risk at a nesting site. Thus, if the first uncovered egg is depredated, the female may start a new clutch elsewhere without wasting investment in the clutch at a site under high predation risk. © 2020, © 2020 British Trust for Ornithology.
ER -
ČERNÝ, Martin a Miroslav ŠÁLEK. Anti-predator function of not covering eggs in the initial phase of nesting in Grey Partridge Perdix perdix: a field experiment. \textit{Bird Study}. Abingdon: Taylor \&{} Francis Ltd, 2020, roč.~67, č.~1, s.~104-108. ISSN~0006-3657. Dostupné z: https://dx.doi.org/10.1080/00063657.2020.1780194.
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