NDLI: Immunization reduces vocal communication but does not increase oxidative stress in a songbird species

Content Provider	Springer Nature Link
Author	Costantini, David Casagrande, Stefania Casasole, Giulia AbdElgawad, Hamada Asard, Han Pinxten, Rianne Eens, Marcel
Copyright Year	2015
Abstract	It is hypothesized that variation in immune function between individuals is due to costs incurred to sustain it. Support for this hypothesis mostly comes from short-term studies on the either costs of innate responses or a combination of innate and antibody responses. Key studies on the fitness and physiological costs of acquired immunity, in which the antibody response is specifically stimulated over a long period, are lacking. We specifically stimulated the antibody response against a virus (Newcastle virus) in male European starlings (Sturnus vulgaris) for 2 months to test whether immunization reduces a fitness-related trait (song rate) and increases oxidative stress. Immunization did not affect the total song rate, but it caused a reduction of the undirected song rate (produced away from the nest box and mostly used for establishing dominance hierarchy). We also found that immunized birds had a lower nest-box-oriented song rate (mostly used to attract females) than control birds although the interaction between treatment and sampling period was not significant. Immunization did not cause any changes in the blood oxidative status. Starlings with a higher nest-box-oriented song rate had significantly lower levels of oxidative protein damage. Finally, starlings that skipped the antibody response had an oxidative status similar to that of starlings that produced antibodies, but they had overall a lower rate of undirected song. Our results suggest that (i) immunized starlings preserved the song used to attract mates but not that used in social interactions and (ii) the antibody response incurs costs that are reflected in the expression of song, but also that these costs are unlikely to be determined by oxidative stress. Our results also suggest that bird song might convey information about a male’s oxidative status.
Starting Page	829
Ending Page	839
Page Count	11
File Format	PDF
ISSN	03405443
Journal	Behavioral Ecology and Sociobiology
Volume Number	69
Issue Number	5
e-ISSN	14320762
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antibodies Birds Immunity Oxidative damage Song Behavioral Sciences Zoology Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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