Includes bibliographical references. / The findings of this study support several ideas relevant to the interpretation of evolutionary patterns among cooperative species. First, the reproductive costs of delaying reproduction may not be as high as previously assumed in some cooperative species if, as in females of this species, birds delaying breeding tend to live longer than birds reproducing at maturity. Second, as demonstrated by inter-sexual difli:rences in the reaction of birds to varied levels of breeder saturation, behavioral responses to ecological constraints may depend on life-history pattem.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uct/oai:localhost:11427/6268 |
| Date | January 2003 |
| Creators | Hawn, Amanda Thacher |
| Publisher | University of Cape Town, Faculty of Science, Department of Biological Sciences |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Master Thesis, Masters, MSc |
| Format | application/pdf |
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