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001-es BibID:BIBFORM104477
035-os BibID:(WoS)000837155300003 (Scopus)85136153178 (cikkazonosító)e13660
Első szerző:Fülöp Attila (biológus)
Cím:Fighting ability, personality and melanin signalling in free-living Eurasian tree sparrows (Passer montanus) / Attila Fülöp, Zoltán Németh, Bianka Kocsis, Bettina Deák-Molnár, Tímea Bozsoky, Gabriella Csöppü, Zoltán Barta
Dátum:2022
ISSN:2167-8359
Megjegyzések:Background Individuals' access to resources is often decided during dyadic contests the outcome of which is determined by the fighting (or competitive) ability of the participants. Individuals' fighting ability (termed also as resource-holding power or potential, RHP) is usually associated with individual features (e.g., sex, age, body size) and is also frequently signalled through various ornaments like the black throat patch (bib) in many birds. Individual personality is a behavioural attribute often linked to fighting ability as well. Based on earlier studies, however, the relationship between personality and fighting ability is far from being straightforward. While accounting for sex and body size, we studied whether exploratory behaviour, an aspect of personality, predicts fighting ability when competing for food during winter in free-living Eurasian tree sparrows (Passer montanus). We also investigated whether the bib can serve as a potential indicator of individual competitiveness in this species. Methods We captured adult tree sparrows, marked them with a unique combination of colour rings, and collected data about the individuals' sex, body size, bib size and exploratory behaviour. Birds were then released and the agonistic behaviour of the marked individuals was recorded while foraging in groups on bird feeding platforms. Results The probability of winning a fight, a proxy for fighting ability of individuals, was not related to exploratory behaviour, in either of the sexes. However, bib size was positively related to probability of winning in females, but not in males. Body size was not associated with probability of winning neither in males, nor in females. Conclusions Our results suggest that, at least in tree sparrows, the outcome of dyadic encounters over food during the non-breeding period are not determined by the exploratory personality of individuals. However, our findings provide further support for a status signalling role of the black bib in tree sparrows, and hint for the first time that bib size might function as a status signal in females as well. Finally, our results do not confirm that body size could serve as an indicator of fighting ability (i.e., RHP) in this species.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Competition
Contest
Resource-holding potential
Exploratory behaviour
Sex differences
Badge of status
Passer montanus
Megjelenés:PeerJ. - 10 (2022), p. 1-24. -
További szerzők:Németh Zoltán (1976-) (biológus) Kocsis Bianka Deák-Molnár Bettina Bozsoky Tímea Csöppü Gabriella Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:OTKA-112527
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
TKP2020-IKA-04
Egyéb
MAEO 2021-22/166661
Egyéb
FK124414
OTKA
János Bolyai Research Scholarship
MTA
ÚNKP-21-5
Egyéb
Magyar Vidékért (Pro Regione) Alapítvány
Egyéb
MTA-DE
MTA
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM096419
035-os BibID:(cikkazonosító)38 (WoS)000611543600001 (Scopus)85099821531
Első szerző:Fülöp Attila (biológus)
Cím:Sex-specific signalling of individual personality by a mutual plumage ornament in a passerine / Attila Fülöp, Dóra Lukács, Péter Imre Fábián, Bianka Kocsis, Gabriella Csöppü, Judit Bereczki, Zoltán Barta
Dátum:2021
ISSN:0340-5443
Megjegyzések:The significance of colour signals in species with strong sexual dimorphism and/or elaborated visual ornaments is rather well-understood. Less attention has, however, been devoted to study colour signals in species with weak or no apparent sexual dimorphism. In such species, an interesting possibility arises as both sexes can bear the same colour ornament(s) (i.e. sexes are mutually ornamented), but their signalling value might differ in males and females. We aimed to explore this possibility by investigating the phenotypic correlates of the black bib, a melanin-based plumage ornament, in the Eurasian tree sparrow (Passer montanus). More specifically, we studied the sex-dependent relationships between bib size and three aspects of individuals' phenotype: body condition (i.e. size-corrected body mass), physiology (i.e. cellular innate immunity/inflammation status, expressed through total leucocyte counts, and chronic physiological stress, expressed through the ratio of heterophils to lymphocytes) and individual personality (i.e. activity in a novel environment). We found that bib size was not associated with body condition and cellular innate immunity/inflammation status, but was positively related to physiological stress levels independent of sex. Furthermore, bib size was negatively associated with activity in males but positively in females. Our findings bring important correlative evidence that mutual ornamental traits may have sex-specific signalling value.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Melanin-based ornament
Personality
Physiology
Melanocortin hypothesis
Phenotypic integration
Passer montanus
Megjelenés:Behavioral Ecology And Sociobiology. - 75 : 2 (2021), p. 1-13. -
További szerzők:Lukács Dóra Fábián Péter Imre Kocsis Bianka Csöppü Gabriella Bereczki Judit (1979-) (biológus) Barta Zoltán (1967-) (biológus, zoológus)
Pályázati támogatás:OTKA-112527
OTKA
EFOP-3.6.1-16-2016-00022
EFOP
NKFIH-1150-6/2019
FIKP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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