- Title
- Historical demography of southern African patellid limpets: congruence of population expansions, but not phylogeography
- Creator
- Mmonwa, Kolobe L, Teske, Peter R, McQuaid, Christopher D, Barker, Nigel P
- Subject
- To be catalogued
- Date
- 2015
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/444814
- Identifier
- vital:74300
- Identifier
- https://doi.org/10.2989/1814232X.2015.1009165
- Description
- Global climatic oscillations have shaped the contemporary genetic structure of marine taxa in different ways. Previous demographic studies have indicated that various intertidal marine species display genetic signatures of demographic expansion that either pre- or postdate the Last Glacial Maximum. Such expansions and the ability of species to colonise new habitats will influence their genetic structure, but the link between scales of larval dispersal and the strength of phylogeographic structure is not always clear. We analysed a fragment of the mitochondrial COI gene of 11 sympatric species of intertidal southern African patellid limpets to investigate how ancient oceanographic dynamics have shaped and maintained their contemporary spatial genetic variation. Our data show that the patellid limpets investigated display congruent evidence of spatial expansion during the Late Pleistocene or Early Holocene, which corresponds with the establishment of the contemporary southern African shoreline. We argue that closely related and co-distributed southern African intertidal invertebrates responded to ancient climatic oscillations as a cohesive group. In contrast, contemporary oceanographic circulation has shaped the phylogeographic patterns of these limpets in different ways. We show close relationships between phylogeography and biogeography for some species, but not for others, despite the similarities in their life histories and exposure to the same climatic changes.
- Format
- 10 pages, pdf
- Language
- English
- Relation
- African Journal of Marine Science, Mmonwa, K.L., Teske, P.R., McQuaid, C.D. and Barker, N.P., 2015. Historical demography of southern African patellid limpets: congruence of population expansions, but not phylogeography. African Journal of Marine Science, 37(1), pp.11-20, African Journal of Marine Science volume 37 number 1 11 20 2015 1814-2338
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Taylor and Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)
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Collections
Barker, Nigel Paul (Dr)
McQuaid, Christopher D (Distinguished Professor)
RU DST/NRF SARChI for Marine Ecosystems and Resources
RU Department of Botany
SDG 14. Life Below Water
RU Department of Zoology and Entomology
| Thumbnail | File | Description | Size | Format | |||
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| View Details Download | SOURCE1 | Historical demography of southern African patellid limpets.pdf | 690 KB | Adobe Acrobat PDF | View Details Download |