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Birds, molecules, and evolutionary patterns among Africa's islands in the sky
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Biological Sciences
2014
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| _version_ | 1867613256518991872 |
|---|---|
| access_status_str | Open Access |
| author | Bowie, Rauri Charles Kerr |
| author2 | Crowe, Timothy M |
| author_browse | Bowie, Rauri Charles Kerr Crowe, Timothy M |
| author_facet | Crowe, Timothy M Bowie, Rauri Charles Kerr |
| author_sort | Bowie, Rauri Charles Kerr |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/6239 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:15.376Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Biological Sciences |
| publisherStr | Department of Biological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/6239 Birds, molecules, and evolutionary patterns among Africa's islands in the sky Bowie, Rauri Charles Kerr Crowe, Timothy M Zoology Includes bibliographical references. Combing results from phylogenetic and population level studies suggests that climatic cycling has had a profound influence on montane bird speciation in Africa. The results from this thesis suggest that there is deep genetic divergence between many clades (8-12%) of montane passerine birds in Africa, with some shallow divergence towards the tips (4-6%). For widespread species reciprocal monophyly has not been reached in some instances, but generally there is some support for the refuge idea that isolation (fragmentation) of montane forests has facilitated speciation. However, most speciation events happened well before the Pleistocene and therefore the Pleistocene Refugia Hypothesis is not appropriate as a model with which to explain patterns of montane bird diversification in Africa. Rather, both dispersal and vicariance have played important roles in shaping montane bird communities. Thus, a refugia type model does work, but only within the context of pulsed or cyclic expansion and contraction of montane forests, supported in thus study by the consistent recovery of spatially structured areas of endemism, despite varying temporal dynamics. 2014-08-13T14:17:07Z 2014-08-13T14:17:07Z 2003 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/6239 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Zoology Bowie, Rauri Charles Kerr Birds, molecules, and evolutionary patterns among Africa's islands in the sky |
| thesis_degree_str | Doctoral |
| title | Birds, molecules, and evolutionary patterns among Africa's islands in the sky |
| title_full | Birds, molecules, and evolutionary patterns among Africa's islands in the sky |
| title_fullStr | Birds, molecules, and evolutionary patterns among Africa's islands in the sky |
| title_full_unstemmed | Birds, molecules, and evolutionary patterns among Africa's islands in the sky |
| title_short | Birds, molecules, and evolutionary patterns among Africa's islands in the sky |
| title_sort | birds molecules and evolutionary patterns among africa s islands in the sky |
| topic | Zoology |
| url | http://hdl.handle.net/11427/6239 |
| work_keys_str_mv | AT bowierauricharleskerr birdsmoleculesandevolutionarypatternsamongafricasislandsinthesky |