NDLI: Parasites, mate attractiveness and female feather corticosterone levels in a socially monogamous bird

Content Provider	Springer Nature Link
Author	Mougeot, François Lendvai, Ádám Z. Martínez Padilla, Jesús Pérez Rodríguez, Lorenzo Giraudeau, Mathieu Casas, Fabián Moore, Ignacio T. Redpath, Steve
Copyright Year	2015
Abstract	Stress is ubiquitous in the life of animals and a key determinant of their well-being and fitness. By quantifying levels of feather corticosterone in growing feathers (CORTf), we measured integrated stress responses in a monogamous game bird, the red grouse Lagopus lagopus scoticus. We investigated the effects of parasites and social mate choice on female CORTf levels during pairing, and tested the hypothesis that females with more parasites and paired with less attractive males have higher CORTf. We experimentally reduced nematode parasite abundance during pairing in females and investigated the effect of treatment on CORTf, while also considering the social mate’s phenotype (male comb size, as a proxy of sexual attractiveness). The treatment was effective at contrasting parasite loads between control and dosed females, but had no apparent effect on CORTf. In experimental females, reinfection rate after a month positively correlated with CORTf. We found no evidence of assortative mating based on size, condition or ornament size, but females paired with more attractive males (displaying bigger combs) had lower CORTf during pairing. Females for which parasite load was reduced had lower CORTf than control females at all levels of male attractiveness. Social mate choice therefore appears to be an important determinant of female integrated stress responses, which may in turn modulate reinfection rate and parasitism risk. An influence of male attractiveness on female stress may be part of an adaptive response allowing females to adjust reproductive investment to their achieved social mate choice.
Starting Page	277
Ending Page	283
Page Count	7
File Format	PDF
ISSN	03405443
Journal	Behavioral Ecology and Sociobiology
Volume Number	70
Issue Number	2
e-ISSN	14320762
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-12-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Feather corticosterone Red grouse Lagopus lagopus scoticus Nematode Trichostrongylus tenuis Mate choice Sexual ornament Behavioral Sciences Zoology Animal Ecology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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