2016
Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix)
SVOBODOVÁ, Jana, Barbora GABRIELOVÁ, Pavel HYRŠL, Tomáš ALBRECHT, Michal VINKLER et. al.Základní údaje
Originální název
Melanin and carotenoid ornaments are related to the individual condition in free-living grey partridges (Perdix perdix)
Autoři
SVOBODOVÁ, Jana (203 Česká republika, garant), Barbora GABRIELOVÁ (203 Česká republika), Pavel HYRŠL (203 Česká republika, domácí), Tomáš ALBRECHT (203 Česká republika) a Michal VINKLER (203 Česká republika)
Vydání
Journal of Ornithology, 2016, 0021-8375
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30105 Physiology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.468
Kód RIV
RIV/00216224:14310/16:00090434
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000382944500008
Klíčová slova anglicky
Complement; Condition; dependent sexual signalling; Carotenoid and melanin colouration; Game bird; Haematology; Phytohaemagglutinin
Změněno: 7. 4. 2017 10:57, Ing. Andrea Mikešková
Anotace
V originále
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.