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@article{1350179,
author = {Svobodová, Jana and Gabrielová, Barbora and Hyršl, Pavel and Albrecht, Tomáš and Vinkler, Michal},
article_number = {4},
doi = {http://dx.doi.org/10.1007/s10336-016-1349-z},
keywords = {Complement; Condition; dependent sexual signalling; Carotenoid and melanin colouration; Game bird; Haematology; Phytohaemagglutinin},
language = {eng},
issn = {0021-8375},
journal = {Journal of Ornithology},
title = {Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix)},
volume = {157},
year = {2016}
}
TY - JOUR
ID - 1350179
AU - Svobodová, Jana - Gabrielová, Barbora - Hyršl, Pavel - Albrecht, Tomáš - Vinkler, Michal
PY - 2016
TI - Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix)
JF - Journal of Ornithology
VL - 157
IS - 4
SP - 1007-1015
EP - 1007-1015
SN - 00218375
KW - Complement
KW - Condition
KW - dependent sexual signalling
KW - Carotenoid and melanin colouration
KW - Game bird
KW - Haematology
KW - Phytohaemagglutinin
N2 - According to the viability indicator hypothesis, ornaments of many bird species honestly signal individual quality and health status. In this study, we investigated the health- and stress-indicating capacity of both feather- and skin-based ornamental traits in the grey partridge (Perdix perdix), a vulnerable avian species of the European agricultural landscape. In 50 free-living males, we assessed individual health status by examining the differential and absolute leukocyte counts, absolute erythrocyte count, complement activity, and pro-inflammatory immune responsiveness to phytohaemagglutinin (PHA). We found that males expressing extensive melanin-pigmented breast ornaments developed stronger skin inflammation after PHA stimulation than males with limited ornaments, suggesting that these are high-quality individuals that are able to mount a robust immune response. Furthermore, we found that the UV signal of the carotenoid-pigmented eye patch ornament is negatively related to the absolute immature erythrocyte count and the peripheral blood heterophil/lymphocyte (H/L) ratio, indicating that males with a slow pace of life and healthier males express skin ornaments with higher UV reflectance. Ornamental colouration in grey partridge males may, therefore, serve as a reliable signal of condition (in terms of resource balance) and health (in terms of stress resistance) to females.
ER -
SVOBODOVÁ, Jana, Barbora GABRIELOVÁ, Pavel HYRŠL, Tomáš ALBRECHT a Michal VINKLER. Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix). \textit{Journal of Ornithology}. roč.~157, č.~4, s.~1007-1015. ISSN~0021-8375. doi:10.1007/s10336-016-1349-z. 2016.
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