Geographic variation in the trophic ecology of an avian rocky shore predator, the African black oystercatcher, along the southern African coastline

Kohler, Sophie A; Connan, Maëlle; Hill, Jaclyn M; Mablouké, Cécile; Bonnevie, Bo T; Ludynia, Katrin; Kemper, Jessica; Huisamen, Johan; Underhill, Leslie G; Cherel, Yves; McQuaid, Christopher D; Jaquemet, Sébastien

Title: Geographic variation in the trophic ecology of an avian rocky shore predator, the African black oystercatcher, along the southern African coastline
Creator: Kohler, Sophie A
Creator: Connan, Maëlle
Creator: Hill, Jaclyn M
Creator: Mablouké, Cécile
Creator: Bonnevie, Bo T
Creator: Ludynia, Katrin
Creator: Kemper, Jessica
Creator: Huisamen, Johan
Creator: Underhill, Leslie G
Creator: Cherel, Yves
Creator: McQuaid, Christopher D
Creator: Jaquemet, Sébastien
Subject: To be catalogued
Date Issued: 2011
Date: 2011
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/444576
Identifier: vital:74252
Identifier: https://doi.org/10.3354/meps09215
Description: The reflection of baseline isotopic signals along marine food chains up to higher trophic levels has been widely used in the study of oceanic top predators but rarely for intertidal predators. We investigated variation in the δ 13 C and δ 15 N ratios of a sedentary, rocky shore predator, the African black oystercatcher Haematopus moquini, over~ 2000 km of the southern African coastline, which is characterized by strong biogeographic patterns in primary productivity and intertidal communities. Blood and feathers from breeding adults and chicks and muscle tissues from primary prey items (mussels and limpets) were sampled between southern Namibia and the southeast coast of South Africa. 15 N enrichment was observed between the southeast and west coasts in oystercatcher tissues and their prey, mirroring an isotope shift between the oligotrophic Agulhas Current on the east coast and the eutrophic Benguela upwelling system on the west coast.
Format: 15 pages
Format: pdf
Language: English
Relation: Marine Ecology Progress Series
Relation: Kohler, S.A., Connan, M., Hill, J.M., Mablouké, C., Bonnevie, B., Ludynia, K., Kemper, J., Huisamen, J., Underhill, L.G., Cherel, Y. and McQuaid, C.D., 2011. Geographic variation in the trophic ecology of an avian rocky shore predator, the African black oystercatcher, along the southern African coastline. Marine Ecology Progress Series, 435, pp.235-249
Relation: Marine Ecology Progress Series volume 435 number 1 235 249 2011 1616-1599
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the Inter-Research Science Publisher Statement (https://www.int-res.com/journals/terms-of-use/)

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Hill, Jaclyn Marie (Ms)

RU Information Technology Division

Bonnevie, Bo Tørris (Mr)

McQuaid, Christopher D (Distinguished Professor)

RU DST/NRF SARChI for Marine Ecosystems and Resources

SDG 15. Life On Land

RU Department of Zoology and Entomology

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