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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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The effects of stand age on avian communities in aspen-dominated forests of central Saskatchewan, Canada
TL;DR: In this article, the authors conducted point counts in young forests regenerated from clear-cutting (15-25 years), and mature (50-60 years) and old (80-110 years) forests regenerating from fire to determine the effects this harvesting strategy might have on communities of breeding forest birds.
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DIET OF HARP SEALS (PAGOPHILUS GROENLANDICUS) IN NEARSHORE NORTHEAST NEWFOUNDLAND: INFERENCES FROM STABLE‐CARBON (δ13C) AND NITROGEN (δ15N) ISOTOPE ANALYSES
John W. Lawson,Keith A. Hobson +1 more
TL;DR: The authors' mean δ 15 N value for harp seals is lower than previous findings for seals collected on the winter whelping patch and may be a function of interannual or seasonal differences in diet.
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Differential parasitism of least flycatchers and yellow warblers by the brown-headed cowbird
TL;DR: The results suggest the large difference in the frequency of parasitism between these two hosts was primarily a product of nest location but that differences in host nest-defense and breeding season asynchrony may have contributed to preferential host selection.
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Defining fish community structure in Lake Winnipeg using stable isotopes (δ13C, δ15N, δ34S): Implications for monitoring ecological responses and trophodynamics of mercury & other trace elements
TL;DR: The north and south basins of Lake Winnipeg represent very different communities with different trophic structures and trace element concentrations, and evidence of growth dilution of cobalt, copper, manganese, molybdenum, thallium, and vanadium, and bioaccumulation of mercury could be explained by increases in algal productivity.
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Stable Isotope Analysis Reveals That Agricultural Habitat Provides an Important Dietary Component for Nonbreeding Dunlin
TL;DR: The terrestrial farmland zone appears to be consistently important as a habitat for juveniles, but for adults it may provide an alternative feeding site used as a buffer against starvation during periods of extreme weather.