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A Late Holocene vertebrate food web from southern Haida Gwaii (Queen Charlotte Islands, British Columbia)

Szpak, P.; Orchard, T.J.; Gröcke, D.R.

Authors

P. Szpak

T.J. Orchard



Abstract

This study presents isotopic data (δ¹³C and δ¹⁵N from bone collagen) for 104 samples representing 29 vertebrate taxa from late pre-contact through to contact era (ca. 2000 – 100 BP) Haida Gwaii (British Columbia, Canada) from a wide variety of mostly marine organisms. The results demonstrate the considerable isotopic variability that characterizes potential prey items in coastal contexts and underscores the need for baseline faunal data to interpret human subsistence practices. Based on these data, a detailed marine food web was constructed, which provides insight into local ecological conditions. We present a simple method for quantifying the trophic level of ancient fauna using δ¹⁵N of bone collagen. Finally, we discuss the implications of this study for the reconstruction of human diet.

Citation

Szpak, P., Orchard, T., & Gröcke, D. (2009). A Late Holocene vertebrate food web from southern Haida Gwaii (Queen Charlotte Islands, British Columbia). Journal of Archaeological Science, 36(12), 2734-2741. https://doi.org/10.1016/j.jas.2009.08.013

Journal Article Type Article
Publication Date Dec 1, 2009
Deposit Date Jun 4, 2010
Journal Journal of Archaeological Science
Print ISSN 0305-4403
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 36
Issue 12
Pages 2734-2741
DOI https://doi.org/10.1016/j.jas.2009.08.013
Keywords Stable isotopes, Trophic level, Marine diet, Ecology, Food web, Northwest Coast, Haida Gwaii.