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Auteur Joel A. Schmutz |
Documents disponibles écrits par cet auteur (11)
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Brian D. Uher‐Koch, Auteur ; Joshua C. Koch, Auteur ; Kenneth G. Wright, Auteur ; Joel A. Schmutz, AuteurIdentifying factors influencing nest survival among sympatric species is important for understanding and managing sources of variation in population dynamics of individual species. Three species of loons nest sympatrically in northern Alaska and[...]Article
Bryce C. Lake, Auteur ; Joel A. Schmutz, Auteur ; Mark S. Lindberg, Auteur ; Craig R. Ely, Auteur ; William D. Eldridge, Auteur ; Fred J. Broerman, AuteurWe studied body mass of prefledging Emperor Geese Chen canagica at three locations across the Yukon-Kuskokwim Delta, Alaska, during 1990-2004 to investigate whether large-scale variation in body mass was related to interspecific competition for [...]Article
David N. Koons, Auteur ; Gunnar Gunnarsson, Auteur ; Joel A. Schmutz, Auteur ; Jay J. Rotella, AuteurWaterfowl are among the best studied and most extensively monitored species in the world. Given their global importance for sport and subsistence hunting, viewing and ecosystem functioning, great effort has been devoted since the middle part of [...]Article
Julien Martin, Auteur ; Carol L. Mcintyre, Auteur ; James E. Hines, Auteur ; James D. Nichols, Auteur ; Joel A. Schmutz, Auteur ; Maggie C. MacCluskie, AuteurThe recent development of multistate site occupancy models offers great opportunities to frame and solve decision problems for conservation that can be viewed in terms of site occupancy. These models have several characteristics (e.g., they acco[...]Article
Joel A. Schmutz, Auteur ; Keith A. Hobson, Auteur ; Julie A. Morse, AuteurDans Ardea (94(3) 2006)Little empirical information exists to assess to what degree geese use a capital versus income breeding strategy for investing nutrients into eggs. We used stable isotope methods to directly estimate the sources of protein deposited into egg yol[...]Article
Jerry W. Hupp, Auteur ; Joel A. Schmutz, Auteur ; Craig R. Ely, Auteur ; Evgeny E. Syroechkovskiy, Auteur ; Alexander V. Kondratyev, Auteur ; William D. Eldridge, Auteur ; Elena Lappo, AuteurWe studied reproductive success and post-breeding movements of 32 adult female emperor geese Chen canagica that were marked with satellite radio transmitters on their nesting area on the Yukon-Kuskokwim Delta (YKD), Alaska 2000-2004. All 16 fema[...]Article
Trevor B. Haynes, Auteur ; Joel A. Schmutz, Auteur ; Mark S. Lindberg, Auteur ; Kenneth G. Wright, Auteur ; Brian D. Uher-Koch, Auteur ; Amanda E. Rosenberger, AuteurInterspecific competition is an important process structuring ecological communities, however, it is difficult to observe in nature. We used an occupancy modelling approach to evaluate evidence of competition between yellow-billed (Gavia adamsii[...]Article
Tyler L. Lewis, Auteur ; Paul L. Flint, Auteur ; Joel A. Schmutz, Auteur ; Dirk V. Derksen, AuteurIn environments where habitat quality varies, the mechanism by which individuals assess and select habitats has significant consequences on their spatial distribution and ability to respond to environmental change. Each year, thousands of Black [...]Article
Tyler L. Lewis, Auteur ; Paul L. Flint, Auteur ; Joel A. Schmutz, Auteur ; Dirk V. Derksen, AuteurArticle
Thomas F. Fondell, Auteur ; Paul L. Flint, Auteur ; Joel A. Schmutz, Auteur ; Jason L. Schamber, Auteur ; Christopher A. Nicolai, AuteurBirds employ varying strategies to accommodate the energetic demands of moult, one important example being changes in body mass. To understand better their physiological and ecological significance, we tested three hypotheses concerning body mas[...]Article
Tyler L. Lewis, Auteur ; Joel A. Schmutz, Auteur ; Courtney L. Amundson, Auteur ; Mark S. Lindberg, AuteurWildfires are the principal disturbance in the boreal forest, and their size and frequency are increasing as the climate warms. Impacts of fires on boreal wildlife are largely unknown, especially for the tens of millions of waterfowl that breed [...]