- Title
- δ13C and δ15N biogeographic trends in rocky intertidal communities along the coast of South Africa: evidence of strong environmental signatures
- Creator
- Hill, Jaclyn M, McQuaid, Christopher D
- Subject
- To be catalogued
- Date
- 2000
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/444664
- Identifier
- vital:74258
- Identifier
- https://doi.org/10.1016/j.ecss.2008.08.005
- Description
- Ecosystem dynamics driven by top-down controls have been well documented in rocky intertidal communities, while the effects of bottom-up influences are comparatively poorly understood. We hypothesized that large-scale signatures of the physical environment may be identifiable along the South African coastline as it is subject to two very different current systems (Benguela and Agulhas Currents) that profoundly influence primary production and thus both food type and availability. Through stable isotope analysis, we examined biogeographic patterns in multiple trophic levels at four sites along a 1400-km stretch of South African coastline and investigated the dietary role of macroalgal-derived organic carbon in rocky intertidal communities. The general positioning of trophic groups was comparable across all sites, with animals from the same trophic levels grouping together and with a δ15N fractionation of 1–2‰ between levels.
- Format
- 8 pages, pdf
- Language
- English
- Relation
- Estuarine, Coastal and Shelf Science, Hill, J.M. and McQuaid, C.D., 2008. δ13C and δ15N biogeographic trends in rocky intertidal communities along the coast of South Africa: evidence of strong environmental signatures. Estuarine, Coastal and Shelf Science, 80(2), pp.261-268, Estuarine, Coastal and Shelf Science volume 80 number 2 261 268 2000 1096-0015
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
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- Visitors: 28
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Collections
Hill, Jaclyn Marie (Ms)
McQuaid, Christopher D (Distinguished Professor)
RU DST/NRF SARChI for Marine Ecosystems and Resources
RU Department of Zoology and Entomology
SDG 14. Life Below Water
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