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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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How far north are migrant birds transporting the tick Ixodes scapularis in Canada? Insights from stable hydrogen isotope analyses of feathers.
TL;DR: Findings support the hypothesis that I. scapularis may continue to be spread north by spring migrating passerines, including some farther north than the current region of climatic suitability for the tick vector.
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Effects of Red Squirrel (Tamiasciurus hudsonicus) Removal on Survival of Artificial Songbird Nests in Boreal Forest Fragments
Erin M. Bayne,Keith A. Hobson +1 more
TL;DR: The importance of red squirrels (Tamiasciurus hudsonicus) as predators of songbird nests in the boreal forest was determined by monitoring survival of artificial nests before and after squirrel removal, with an increase in nest survival when squirrels were removed.
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Assessing costs of carrying geolocators using feather corticosterone in two species of aerial insectivore
Graham D. Fairhurst,Lisha L. Berzins,David W. Bradley,Andrew J. Laughlin,Andrea Romano,Maria Romano,Chiara Scandolara,Roberto Ambrosini,Russell D. Dawson,Peter O. Dunn,Keith A. Hobson,Felix Liechti,Tracy A. Marchant,D. R. Norris,Diego Rubolini,Nicola Saino,Caz M. Taylor,Linda A. Whittingham,Robert G. Clark,Robert G. Clark +19 more
TL;DR: Despite benefits of using light-sensitive geolocators to track animal movements and describe patterns of migratory connectivity, concerns have been raised about negative effects of these devices, p... as mentioned in this paper.
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Effect of age and ration on diet-tissue isotopic (Δ13C, Δ15N) discrimination in striped skunks (Mephitis mephitis).
Keith A. Hobson,Travis W. Quirk +1 more
TL;DR: The data provide an important tool for predicting diets and source of feeding for medium-sized mammalian omnivorous adults integrated over short (e.g. liver, plasma) through long (e-g. collagen) periods and underline the potential effects of age on isotopic values in omnivore diets.
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Individual differences in migratory behavior shape population genetic structure and microhabitat choice in sympatric blackcaps (Sylvia atricapilla)
Gregor Rolshausen,Gregor Rolshausen,Gernot Segelbacher,Claudia Hermes,Keith A. Hobson,H. Martin Schaefer +5 more
TL;DR: This study suggests that migratory behavior shapes population genetic structure in blackcaps not only across the migratory divide but also on an individual level independent of the divide, and suggests assortment based on individual migratory origins which would facilitate evolutionary responses.