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Documents disponibles écrits par cet auteur (12)
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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[...]
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[...]
Article
Josée Lefebvre, Auteur ; Gilles Gauthier, Auteur ; Jean-Francois Giroux, Auteur ; Austin Reed, Auteur ; Eric T. Reed, Auteur ; Luc Bélanger, AuteurBetween the early 1900s and the 1990s, the greater snow goose Anser caerulescens atlanticus population grew from 3000 individuals to more than 700 000. Because of concerns about Arctic degradation of natural habitats through overgrazing, a worki[...]
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
Cedric Juillet, Auteur ; Remi Choquet, Auteur ; Gilles Gauthier, Auteur ; Josée Lefebvre, Auteur ; Roger Pradel, AuteurIn long-lived species, temporal variation in recruitment, defined as the entry of new individuals into the breeding population, can have a large effect on population growth rate. While hunting, as a management tool, is generally expected to cont[...]
Article
Pierre Legagneux, Auteur ; Alice-Anne Simard, Auteur ; Gilles Gauthier, Auteur ; Joel Bety, AuteurMarkers are widely used to study behavior, migration, and the life history traits of birds such as survival, dispersal, and reproductive success. The presence of neck collars has been shown to impact the breeding propensity of adult female Great[...]
Article
Gilles Gauthier, Auteur ; Emmanuel Milot, Auteur ; Henri Weimerskirch, AuteurThe study of dispersal or recruitment in long-lived birds using capture-recapture methods is challenging because temporary emigration is often a source of heterogeneity in detection probabilities. To deal with this problem, we introduced unobser[...]
Article
Hélène Sénéchal, Auteur ; Gilles Gauthier, Auteur ; Jean-Pierre L. Savard, Auteur
Article
Vincent Marmillot, Auteur ; Gilles Gauthier, Auteur ; Marie-Christine Cadieux, Auteur ; Pierre Legagneux, AuteurEnvironmental constraints are strong in migratory species that breed in the Arctic. In addition to breeding, Anatidae have to renew all their flight feathers during the short arctic summer. We examine how temporal constraints and climate affect [...]
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[...]
