Journal article
Bringing home the bacon: potential energy return fromprey and central place foraging in a willie wagtailRhipidura leucophrys
Emu, Vol.98(1), pp.62-65
1998
Abstract
Many insectivorous birds with dependent young are ‘single prey loaders’, capturing a single prey before returning to a central location to feed their young (central place foraging or CPF, see Stephens & Krebs 1986). Given the energetic costs in carrying prey to a central place, one important prediction of CPF is that large prey should be transported and small prey eaten on the spot (Korpimäki et al. 1994).
Here, we report observations relevant to this prediction made on a breeding Willie Wagtail Rhipidura leucophrys feeding on grasshoppers Acrida conica (Orthoptera: Acrididae). By observing one prey species in detail we were able to note not only which prey instars were carried to the dependent young, but also to record the handling times for the parent bird feeding on particular prey instars itself and hence determine the most energetically rewarding prey size for the parent to eat itself rather than transport to the young.
Details
- Title
- Bringing home the bacon: potential energy return fromprey and central place foraging in a willie wagtailRhipidura leucophrys
- Authors/Creators
- M. Maxwell (Author/Creator)M.C. Calver (Author/Creator)
- Publication Details
- Emu, Vol.98(1), pp.62-65
- Publisher
- CSIRO Publishing
- Identifiers
- 991005541786907891
- Copyright
- © Birds Australia
- Murdoch Affiliation
- School of Biological and Environmental Sciences
- Language
- English
- Resource Type
- Journal article
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- 3 Agriculture, Environment & Ecology
- 3.35 Zoology & Animal Ecology
- 3.35.33 Avian Ecology
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- Plant & Animal Science