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Keith A. Hobson
Researcher at University of Western Ontario
Publications - 686
Citations - 44822
Keith A. Hobson is an academic researcher from University of Western Ontario. The author has contributed to research in topics: Population & Trophic level. The author has an hindex of 103, co-authored 653 publications receiving 41300 citations. Previous affiliations of Keith A. Hobson include National Autonomous University of Mexico & Fisheries and Oceans Canada.
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Journal ArticleDOI
Transfer of mercury in the marine food web of West Greenland.
Frank Rigét,Per Møller,Rune Dietz,Torkel Gissel Nielsen,Gert Asmund,Jakob Strand,Martin M. Larsen,Keith A. Hobson +7 more
TL;DR: The results suggest similar mechanisms of mercury assimilation and isotopic (delta(15)N) discrimination among a broad range of aquatic taxa and underlines the possibility of broad ecosystem comparisons using the combined contaminant and stable isotope approach.
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Geographic, temporal, and age-specific variation in diets of Glaucous Gulls in western Alaska
Joel A. Schmutz,Keith A. Hobson +1 more
TL;DR: Diet estimates of the contribution of terrestrial prey to the diet of Glaucous Gulls was less than what may be inferred from conventional methods of diet analysis, which emphasizes the benefit of combining stable-isotope and conventional analyses to infer temporal and geographic changes in diet of wild birds and other organism.
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Changes in food web structure affect rate of PCB decline in herring gull (Larus argentatus) eggs
TL;DR: Evidence from stable isotope analysis indicated that temporal changes in the composition of the herring gull diet occurred on Lake Erie, and these trends may not be indicative of lake-wide declines in PCB bioavailability but only reflect changes in dietary exposure brought about by alterations in food webmore » structure.
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A call for feather sampling
Thomas B. Smith,Peter P. Marra,Michael S. Webster,Irby J. Lovette,H. Lisle Gibbs,Richard T. Holmes,Keith A. Hobson,Sievert Rohwer +7 more
TL;DR: In this article, the authors present a taxonomic taxonomic model for the genus of birds and its relationships with the plant and animal communities, including the relationships between plants and animals.
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Critique: measuring hydrogen stable isotope abundance of proteins to infer origins of wildlife, food and people.
TL;DR: In this article, the relative abundance of 2H (expressed in δ 2H values) in tissues of plants, wildlife and people has evolved into a powerful forensic tool.