δ13C and δ15N biogeographic trends in rocky intertidal communities along the coast of South Africa: evidence of strong environmental signatures

Hill, Jaclyn M; McQuaid, Christopher D

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
Creator: McQuaid, Christopher D
Subject: To be catalogued
Date Issued: 2000
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
Format: pdf
Language: English
Relation: Estuarine, Coastal and Shelf Science
Relation: 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
Relation: 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)

Hits: 73
Visitors: 73
Downloads: 4

Collections

Hill, Jaclyn Marie (Ms)

RU DST/NRF SARChI for Marine Ecosystems and Resources

McQuaid, Christopher D (Distinguished Professor)

RU Department of Zoology and Entomology

SDG 14. Life Below Water

		Thumbnail	File	Description	Size	Format
View Details Download			SOURCE1	δ13C and δ15N biogeographic trends in rocky intertidal communities along the coast of South Africa.pdf	647 KB	Adobe Acrobat PDF	View Details Download