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Documents disponibles écrits par cet auteur (12)
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Article
Myrthe Van Brempt, Auteur ; Scott Weidensaul, Auteur ; David Brinker, Auteur ; Pascal Coté, Auteur ; David Okines, Auteur ; Dries Bonte, Auteur ; Jean-François Therrien, Auteur
Article
Yannick Seyer, Auteur ; Gilles Gauthier, Auteur ; Jean-François Therrien, AuteurIn long-lived seabirds, social monogamy and mate and site fidelity are common due to the cost entailed by site change and divorce such as delayed laying or reduced reproductive success. We used 13 years of monitoring data from marked Long-tailed[...]
Article
Andrea Brown, Auteur ; Rebecca A. McCabe, Auteur ; Jean-François Therrien, Auteur ; Karen L. Wiebe, Auteur ; Scott Weidensaul, Auteur ; David Brinker, Auteur ; Gilles Gauthier, Auteur ; Kyle H. Elliott, AuteurWhereas most migratory animals, such as many birds of prey, return to the same breeding area each summer, nomadic breeders search over large distances to locate breeding areas that vary greatly in location from year to year. Nomadic breeders are[...]
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Christopher J. W. McClure, Auteur ; Jessi L. Brown, Auteur ; Sarah E. Schulwitz, Auteur ; John Smallwood, Auteur ; Kathleen E. Farley, Auteur ; Jean-François Therrien, Auteur ; Karl E. Miller, Auteur ; Karen Steenhof, Auteur ; Julie A. Heath, AuteurDans Ibis (163(2) 2021)Demographic differences between stable and declining populations can lend insight into drivers of population decline. The American Kestrel Falco sparverius is a widespread and often-studied falcon, yet its demography is poorly understood, and th[...]
Article
Pablo Santonja, Auteur ; Irene Mestre, Auteur ; Scott Weidensaul, Auteur ; David Brinker, Auteur ; Steve Huy, Auteur ; Norman Smith, Auteur ; Tom Mcdonald, Auteur ; Mike Blom, Auteur ; Dan Zazelenchuck, Auteur ; Drew Weber, Auteur ; Gilles Gauthier, Auteur ; Nicolas Lecomte, Auteur ; Jean-François Therrien, AuteurPatterns of winter irruptions in several owl species apparently follow the 'lack of food' hypothesis, which predicts that individuals leave their breeding grounds in search of food when prey populations do not allow breeding and are too small to[...]
Article
Audrey Robillard, Auteur ; Gilles Gauthier, Auteur ; Jean-François Therrien, Auteur ; Joel Bety, AuteurMigratory species can exploit many habitats over vast geographic areas and adopt various patterns of space and habitat use throughout their annual cycle. In nomadic species, determinants of habitat use during the non-breeding season are poorly k[...]
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Jennifer C. Probst, Auteur ; Jean-François Therrien, Auteur ; Laurie J. Goodrich, Auteur ; Keith L. Bildstein, AuteurABSTRACT Global change can affect several aspects of bird biology, including population size and migration timing. We used count data collected during 25 years (1990?2014) at Hawk Mountain Sanctuary, a raptor migration watch-site in eastern Penn[...]
Article
Jean-François Therrien, Auteur ; Gilles Gauthier, Auteur ; Joel Bety, AuteurTop predators of the arctic tundra are facing a long period of very low prey availability during winter and subsidies from other ecosystems such as the marine environment may help to support their populations. Satellite tracking of snowy owls, a[...]
Article
Alastair Franke, Auteur ; Jean-François Therrien, Auteur ; Sebastien Descamps, Auteur ; Joel Bety, AuteurIn long-lived species, population growth rate is highly sensitive to changes in adult survival. Despite the growing concerns regarding recent climate changes, few studies have investigated the effect of climatic conditions on survival in long-li[...]
Article
Daniel M. Hinnebusch, Auteur ; Jean-François Therrien, Auteur ; Marc-André Valiquette, Auteur ; Bob Robertson, Auteur ; Sue Robertson, Auteur ; Keith L. Bildstein, Auteur
Article
Audrey Robillard, Auteur ; Gilles Gauthier, Auteur ; Jean-François Therrien, Auteur ; Guy Fitzgerald, Auteur ; Jennifer F. Provencher, Auteur ; Joel Bety, AuteurThe snowy owl is an elusive arctic predator known for its nomadic behaviour. Satellite tracking has revealed that some adult snowy owls could make an extensive use of the marine environment during the non-breeding season. However, the relative c[...]
Article
Maricel Graña Grilli, Auteur ; Sergio A. Lambertucci, Auteur ; Jean-François Therrien, Auteur ; Keith L. Bildstein, AuteurBoth wing size and wing shape affect the flight abilities of birds. Intra and inter-specific studies have revealed a pattern where high aspect ratio and low wing loading favour migratory behaviour. This, however, have not been studied in soaring[...]
