id:"swepub:oai:DiVA.org:uu-179073"
Search: id:"swepub:oai:DiVA.org:uu-179073" > The rarer sex - fem...
- 1 of 1
- Previous record
- Next record
- To hitlist
The rarer sex - female natal dispersal and breeder replacement in the southern anteater-chat Myrmecocichla formicivora.
-
- Barnaby, Jonathan, 1965- (author)
- Uppsala universitet,Populationsbiologi och naturvårdsbiologi
- Ekman, Jan (author)
- (creator_code:org_t)
- English.
- Other publication (other academic/artistic)
Abstract
Subject headings
Close
- Sex biased dispersal is a crucial factor in understanding the mechanism of family dynamics in many cooperative breeders. Female biased dispersal occurs in many cooperatively breeding birds. It is often associated with females dispersing earlier and further, and a male biased sex skew in the population. Here we investigated female dispersal in the southern anteater-chat, a facultative cooperatively breeding passerine of southern Africa. Our study population had a male biased sex skew, and females had lower annual survival than males. Dispersal was strongly female biased, with females dispersing within their first year whereas many males remained philopatric beyond the next breeding season. Breeding females were on average younger than breeding males, and also dispersed further. Each breeding group contained only one female. No females were found floating in the population, and all females were associated with one or more males in a breeding group. It appears that all females disperse in their first year directly to a breeding position. If a female disappeared in the breeding season they were not replaced until new females matured and dispersed the following season, yet if a male breeder disappeared during the breeding season he was almost immediately replaced, indicating that there are no surplus females.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- Southern anteater-chat
- cooperative breeding
- social evolution
- behavioural ecology
- delayed dispersal
- family living
- Africa
- Biologi med inriktning mot populationsbiologi
- Biology with specialization in Population Biology
Publication and Content Type
- vet (subject category)
- ovr (subject category)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Barnaby, Jonatha ...
- Ekman, Jan
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- and Evolutionary Bio ...
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
