PARENTAL CARE AT NESTS OF TWO AGE CLASSES OF MALE AMERICAN REDSTART: IMPLICATIONS FOR FEMALE MATE CHOICE
Links to Fileshttps://www.jstor.org/stable/pdf/1369463.pdf
MetadataShow full item record
Type of Work8 pages
Citation of Original PublicationKevin E. Omland and Thomas W. Sherry, Parental Care at Nests of Two Age Classes of Male American Redstart: Implications for Female Mate Choice, The Condor Vol. 96, No. 3 (Aug., 1994), pp. 606-613 (8 pages), DOI: 10.2307/1369463
RightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
Attribution-NonCommercial-NoDerivs 2.0 Generic (CC BY-NC-ND 2.0)
© The American Ornithologists’ Union, 2008
We compared food provisioning at nests of two age classes of male American Redstarts (Setophaga ruticilla). Older male redstarts are more likely to obtain a mate than yearling males. We hypothesized that females actively choose older males as mates because of direct benefits due to increased rates of nestling provisioning. Lack of foraging experience or low food availability on their territories might cause yearling males and their mates to deliver less food to their nestlings. Our results did not support this hypothesis. Nestling provisioning rates did not differ between nests of yearling and older males in number of feeding trips per hour, average load size, estimated mass delivered per hour, nor prey taxa. Direct benefits to the female (at least with regard to nestling provisioning) do not explain why older male redstarts are more likely to obtain a mate. We discuss alternative hypotheses that might explain the lower mating success of yearling male redstarts.
The following license files are associated with this item:
- Creative Commons