SVOBODOVÁ, Jana, Barbora GABRIELOVÁ, Pavel HYRŠL, Tomáš ALBRECHT and Michal VINKLER. Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix). Journal of Ornithology. 2016, vol. 157, No 4, p. 1007-1015. ISSN 0021-8375. Available from: https://dx.doi.org/10.1007/s10336-016-1349-z.
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Basic information
Original name Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix)
Authors SVOBODOVÁ, Jana (203 Czech Republic, guarantor), Barbora GABRIELOVÁ (203 Czech Republic), Pavel HYRŠL (203 Czech Republic, belonging to the institution), Tomáš ALBRECHT (203 Czech Republic) and Michal VINKLER (203 Czech Republic).
Edition Journal of Ornithology, 2016, 0021-8375.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30105 Physiology
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.468
RIV identification code RIV/00216224:14310/16:00090434
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1007/s10336-016-1349-z
UT WoS 000382944500008
Keywords in English Complement; Condition; dependent sexual signalling; Carotenoid and melanin colouration; Game bird; Haematology; Phytohaemagglutinin
Tags AKR, rivok
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 7/4/2017 10:57.
Abstract
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.
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