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Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Percy FitzPatrick Institute of African Ornithology
2015
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| _version_ | 1867613298963251200 |
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| access_status_str | Open Access |
| author | Calder, Jordan-Laine |
| author2 | Cumming, Graeme S |
| author_browse | Calder, Jordan-Laine Cumming, Graeme S |
| author_facet | Cumming, Graeme S Calder, Jordan-Laine |
| author_sort | Calder, Jordan-Laine |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/12816 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:55.830Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Percy FitzPatrick Institute of African Ornithology |
| publisherStr | Percy FitzPatrick Institute of African Ornithology |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/12816 Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands Calder, Jordan-Laine Cumming, Graeme S Oschadleus, Hans-Dieter Conservation Biology Includes bibliographical references. Urbanization, a fast growing and destructive human land use, causes local extinctions, biotic homogenization and fragmentation of natural habitats. Understanding how the nature of the urban matrix affects the species residing within a city’s fragmented habitats is an important founding component of urban conservation. This study investigated the influence that the urban matrix, as well as patch isolation, size and quality, had on weaver bird movement into and out of wetland sites in Cape Town, a growing city within a global biodiversity hotspot. Weaver bird movement data from 42 wetland sites were obtained through a long term mark - release - recapture project. Distance - based linear models revealed that site proximity was important as a predictor of weaver movement into and out of sites, while the site variables ( wetland size, bird abundance and weaver colony size) had limited and inconclusive influence. Once the variation explained by the proximity and site variables had been accounted for, the composition of the urban matrix and the presence of rivers as potential movement corridors (measured at three spatial scales) had little influence on weaver movement. The finding that proximity (or site isolation) influences weaver movement has important implications for maintaining current landscape connectivity. Habitat isolation, resulting from further habitat removal or destruction, could be expected to reduce movements of weavers, and potentially other species, among patches of favourable habitat. Weavers are robust, vagile birds that do well in the presence of humans and may not be highly sensitive to the nature of the urban matrix. Research into how other, less resilient and vagile species respond to the degree of urbanization in the matrix between wetlands would contribute further to our knowledge of urban biodiversity in this global biodiversity hotspot. 2015-05-18T14:21:43Z 2015-05-18T14:21:43Z 2014 Master Thesis Masters MSc http://hdl.handle.net/11427/12816 eng application/pdf Percy FitzPatrick Institute of African Ornithology Faculty of Science University of Cape Town |
| spellingShingle | Conservation Biology Calder, Jordan-Laine Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands |
| thesis_degree_str | Master's |
| title | Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands |
| title_full | Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands |
| title_fullStr | Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands |
| title_full_unstemmed | Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands |
| title_short | Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands |
| title_sort | weaving through the matrix investigating the influence of urban land use on weaver bird movements into and out of cape town wetlands |
| topic | Conservation Biology |
| url | http://hdl.handle.net/11427/12816 |
| work_keys_str_mv | AT calderjordanlaine weavingthroughthematrixinvestigatingtheinfluenceofurbanlanduseonweaverbirdmovementsintoandoutofcapetownwetlands |