High occurrence of extra-pair partnerships and homosexuality in a captive Cape Vulture Gyps coprotheres colony
| Autor: | Kerri Wolter, Margaret T Hirschauer |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
education.field_of_study biology Ecology 05 social sciences Population Endangered species Zoology Cape Vulture homosexuality extra-pair copulation colonial breeding biology.organism_classification 010603 evolutionary biology 01 natural sciences Gyps coprotheres biology.animal Cape Captive breeding Seasonal breeder 0501 psychology and cognitive sciences Extra-pair copulation 050102 behavioral science & comparative psychology education Ecology Evolution Behavior and Systematics Vulture |
| Zdroj: | Ostrich: Journal of African Ornithology; Vol 88, No 2 (2017); 173-176 |
| ISSN: | 1727-947X 0030-6525 |
| DOI: | 10.2989/00306525.2017.1304461 |
| Popis: | The Cape Vulture Gyps coprotheres is an Endangered colonial cliff-nesting species that is typically cited as monogamous. Observations of wild Cape Vulture colonies note extra-pair breeding activities but homosexual activity has never been confirmed. Observations of breeding behaviours within a captive colony were conducted at VulPro’s breeding facilities in South Africa The captive breeding programme included 10 breeding pairs and a total of 41 non-releasable, individually recognisable, and genetically sexed subadults or adults. Observations were conducted over the 2014 breeding season as part of a study investigating the social and rearing conditions of chicks intended for release in a population supplementation programme. A high percentage of total colony copulation attempts (22%) were extra-pair copulations but only 23 interactions resulted in cloacal contact or possible sperm transfer. Four paired males formed extra-pair relationships, two of which were homosexual.Keywords: Cape Vulture, homosexuality, extra-pair copulation, colonial breeding |
| Databáze: | OpenAIRE |
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