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A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister
Coalescence has been described in a number of coalescing red algae, however the majority of studies are laboratory based. This study examines the phenology of clumping characteristics in Gigartina polycarpa and Sarcothalia stiriata in the field. Clumps of these two species appear to have a coalesced...
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2017
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| _version_ | 1867613664789397504 |
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| access_status_str | Open Access |
| author | Wolf, Gabrielle |
| author2 | Bolton, John J |
| author_browse | Bolton, John J Wolf, Gabrielle |
| author_facet | Bolton, John J Wolf, Gabrielle |
| author_sort | Wolf, Gabrielle |
| collection | Thesis |
| description | Coalescence has been described in a number of coalescing red algae, however the majority of studies are laboratory based. This study examines the phenology of clumping characteristics in Gigartina polycarpa and Sarcothalia stiriata in the field. Clumps of these two species appear to have a coalesced holdfast from which a number of uprights arise. Clumps of both species display characteristics previously described in coalescing species. This includes size inequality between fertile uprights and juvenile and non-fertile uprights and a loose relationship between basal area and number of uprights. It appears that the phenology of clumps supports previous studies examining phenology without considering coalescence. The distribution of the two species is very different, with a higher proportion of S. stiriata conspecifics found next to each other. Conversely G. polycarpa has a low proportion of near neighbour conspecifics. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/25905 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:39:45.079Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| 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:11427/25905 A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister Wolf, Gabrielle Bolton, John J Botany Coalescence has been described in a number of coalescing red algae, however the majority of studies are laboratory based. This study examines the phenology of clumping characteristics in Gigartina polycarpa and Sarcothalia stiriata in the field. Clumps of these two species appear to have a coalesced holdfast from which a number of uprights arise. Clumps of both species display characteristics previously described in coalescing species. This includes size inequality between fertile uprights and juvenile and non-fertile uprights and a loose relationship between basal area and number of uprights. It appears that the phenology of clumps supports previous studies examining phenology without considering coalescence. The distribution of the two species is very different, with a higher proportion of S. stiriata conspecifics found next to each other. Conversely G. polycarpa has a low proportion of near neighbour conspecifics. 2017-10-30T10:49:21Z 2017-10-30T10:49:21Z 2001 2017-03-08T14:31:17Z Bachelor Thesis Honours BSc (Hons) http://hdl.handle.net/11427/25905 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Botany Wolf, Gabrielle A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister |
| thesis_degree_str | Bachelor's / Honours |
| title | A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister |
| title_full | A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister |
| title_fullStr | A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister |
| title_full_unstemmed | A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister |
| title_short | A phenological study of coalescence in two South African Gigartinales, Gigartina polycarpa (Kützing) Setchell et Gardner and Sarcothalia stiriata (Turner) Leister |
| title_sort | phenological study of coalescence in two south african gigartinales gigartina polycarpa kutzing setchell et gardner and sarcothalia stiriata turner leister |
| topic | Botany |
| url | http://hdl.handle.net/11427/25905 |
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