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001-es BibID:	BIBFORM097705
035-os BibID:	(WOS)000485004100001 (Scopus)85071752040
Első szerző:	Pap Péter László (ökológus)
Cím:	Selection on multiple sexual signals in two Central and Eastern European populations of the barn swallow / Péter L. Pap, Attila Fülöp, Marie Adamkova, Jaroslav Cepak, Romana Michalkova, Rebecca J. Safran, Alexandru N. Stermin, Oldrich Tomasek, Csongor I. Vágási, Orsolya Vincze, Matthew R. Wilkins, Tomas Albrecht
Dátum:	2019
ISSN:	2045-7758
Megjegyzések:	Variation in intensity and targets of sexual selection on multiple traits has been suggested to play a major role in promoting phenotypic differentiation between populations, although the divergence in selection may depend on year, local conditions or age. In this study, we quantified sexual selection for two putative sexual signals across two Central and East European barn swallow (Hirundo rustica rustica) populations from Czech Republic and Romania over multiple years. We then related these differences in selection to variation in sexual characters among barn swallow populations. Our results show that tail length and ventral coloration vary between populations, sexes, and age classes (first-time breeders vs. experienced birds). We found that selection on tail length was stronger in first-time breeders than in experienced birds and in males than in females in the Romanian population, while these differences between age groups and sexes were weak in Czech birds. We suggest that the populational difference in selection on tail length might be related to the differences in breeding conditions. Our results show that ventral coloration is darker (i.e., has lower brightness) in the Romanian than in the Czech population, and in experienced birds and males compared with first-time breeders and females, respectively. The sexual difference in ventral coloration may suggest sexual selection on this trait, which is supported by the significant directional selection of ventral coloration in first-time breeding males on laying date. However, after controlling for the confounding effect of wing length and tarsus length, the partial directional selection gradient on this trait turned nonsignificant, suggesting that the advantage of dark ventral coloration in early breeding birds is determined by the correlated traits of body size. These findings show that ventral coloration may be advantageous over the breeding season, but the underlying mechanism of this relationship is not clarified.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk barn swallow Hirundo rustica rustica sexual selection tail length ventral coloration
Megjelenés:	Ecology and Evolution. - 9 : 19 (2019), p. 11277-11287. -
További szerzők:	Fülöp Attila (1987-) (biológus) Adamkova, Marie Cepak, Jaroslav Michálková, Romana Safran, Rebecca J. Stermin, Alexandru N. Tomášek, Oldřich Vágási Csongor István Vincze Orsolya (1988-) (biológus) Wilkins, Matthew R. Albrecht, Tomáš
Pályázati támogatás:	OTKA-112527 OTKA PD-121166 OTKA B2/1SZ/11551 Egyéb B2/1R/19362 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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