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Article
Brian W. Rolek, Auteur ; Melissa A. Braham, Auteur ; Tricia A. Miller, Auteur ; Adam E. Duerr, Auteur ; Todd E. Katzner, Auteur ; Jennifer D. McCabe, Auteur ; Leah Dunn, Auteur ; Christopher J. W. McClure, AuteurOperators of wind power facilities can mitigate wildlife mortality by slowing or stopping wind turbines (hereafter ‘curtail’) when birds are at an increased risk of collision. Some facility operators curtail when individual birds have flight cha[...]
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Christopher J. W. McClure, Auteur ; Zackery Szymczycha, Auteur ; David L. Anderson, Auteur ; Francisca Helena Aguiar-Silva, Auteur ; Sarah Schulwitz, Auteur ; Leah Dunn, Auteur ; Michael T. Henderson, Auteur ; Leticia Camacho, Auteur ; José de Jesús Vargas González, Auteur ; Chris N. Parish, Auteur ; Evan R. Buechley, Auteur ; Jesse D'Elia, Auteur ; Sanford Wilbur, Auteur ; Kenneth Johansen, Auteur ; Devin L. Johnson, Auteur ; Søren Møller, Auteur ; Ivan Pokrovsky, Auteur ; Todd E. Katzner, AuteurScoping reviews, in which the literature on a given topic is systematically collated and summarized, aid literature searches and highlight knowledge gaps on a given topic, thus hastening scientific progress and informing conservation efforts. Be[...]
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Christopher J. W. McClure, Auteur ; Brian W. Rolek, Auteur ; Gregory W. Grove, Auteur ; Todd E. Katzner, AuteurDans Ibis (163(2) 2021)Globally, evaluation of population trends is the most pressing research need for many species of conservation concern. Road counts for birds of prey are useful for monitoring long-term population trends and examining year-to-year variations in a[...]
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Macy L. Kenney, Auteur ; James R. Belthoff, Auteur ; Matthew Carling, Auteur ; Tricia A. Miller, Auteur ; Todd E. Katzner, AuteurThe behavior of wildlife varies seasonally, and that variation can have substantial demographic consequences. This is especially true for long-distance migrants where the use of landscapes varies by season and, sometimes, age cohort. We tested t[...]
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Jonathan C. Hall, Auteur ; Melissa A. Braham, Auteur ; Lee Ann Nolan, Auteur ; Jamison Conley, Auteur ; Joseph Brandt, Auteur ; Laura Mendenhall, Auteur ; Michael Lanzone, Auteur ; Andrew McGann, Auteur ; Todd E. Katzner, Auteur
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Adam E. Duerr, Auteur ; Melissa A. Braham, Auteur ; Tricia A. Miller, Auteur ; Jeffery Cooper, Auteur ; James T. Anderson, Auteur ; Todd E. Katzner, Auteur
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Stephanie S. Coster, Auteur ; Amy B. Welsh, Auteur ; Gary Costanzo, Auteur ; Sergio R. Harding, Auteur ; James T. Anderson, Auteur ; Todd E. Katzner, AuteurExamining population genetic structure can reveal patterns of reproductive isolation or population mixing and inform conservation management. Some avian species are predicted to exhibit minimal genetic differentiation among populations as a resu[...]
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Evgeny A. Bragin, Auteur ; Sharon A. Poessel, Auteur ; Michael J. Lanzone, Auteur ; Todd E. Katzner, Auteur
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Sharon A. Poessel, Auteur ; Evgeny A. Bragin, Auteur ; Peter B. Sharpe, Auteur ; David K. Garcelon, Auteur ; Kordian Bartoszuk, Auteur ; Todd E. Katzner, AuteurCapsule: We describe ecological factors associated with movements of a globally declining raptor species, the Eastern Imperial Eagle Aquila heliaca.Aims: To describe the movements, habitat associations and resource selection of Eastern Imperial [...]
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Sharon A. Poessel, Auteur ; Joseph Brandt, Auteur ; Tricia A. Miller, Auteur ; Todd E. Katzner, AuteurDans Ibis (160(1) 2018)The movements of animals are limited by evolutionary constraints and ecological processes and are strongly influenced by the medium through which they travel. For flying animals, variation in atmospheric conditions is critically influential in m[...]
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Evgeny A. Bragin, Auteur ; Alexander E. Bragin, Auteur ; Todd E. Katzner, AuteurDans Ibis (159(4) 2017)Nestbox programmes are frequently implemented for the conservation of cavity-nesting birds, but their effectiveness is rarely evaluated in comparison with birds not using nestboxes. In the European Palaearctic, Red-footed Falcon Falco vespertinu[...]
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Lydia L. Stiffler, Auteur ; James T. Anderson, Auteur ; Amy B. Welsh, Auteur ; Sergio R. Harding, Auteur ; Gary R. Costanzo, Auteur ; Todd E. Katzner, Auteur
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Todd E. Katzner, Auteur ; Evgeny A. Bragin, Auteur ; Alexander E. Bragin, Auteur ; Michael McGrady, Auteur ; Tricia A. Miller, Auteur ; Keith L. Bildstein, AuteurCapsule: Red-footed Falcons Falco vespertinus migrating from northern Kazakhstan proceed west before heading south to Africa; their northbound travel follows a different route with passage close to shooting hotspots in the Mediterranean.Aim: To [...]
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Tricia A. Miller, Auteur ; Robert P. Brooks, Auteur ; Michael J. Lanzone, Auteur ; David Brandes, Auteur ; Jeff Cooper, Auteur ; Junior A. Tremblay, Auteur ; Jay Wilhelm, Auteur ; Adam Duerr, Auteur ; Todd E. Katzner, AuteurMigration is costly in terms of time, energy and safety. Optimal migration theory suggests that individual migratory birds will choose between these three costs depending on their motivation and available resources. To test hypotheses about use [...]
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Andrew J. Dennhardt, Auteur ; Adam E. Duerr, Auteur ; David Brandes, Auteur ; Todd E. Katzner, AuteurEstimating population size is fundamental to conservation and management. Population size is typically estimated using survey data, computer models, or both. Some of the most extensive and often least expensive survey data are those collected by[...]
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Samuel A. Iverson, Auteur ; Andrei Gavrilov, Auteur ; Todd E. Katzner, Auteur ; John Y. Takekawa, Auteur ; Tricia A. Miller, Auteur ; Ward Hagemeijer, Auteur ; Taej Mundkur, Auteur ; Balachandran Sivananinthaperumal, Auteur ; Carlos C. DeMattos, Auteur ; Lu'ay S. Ahmed, Auteur ; Scott H. Newman, AuteurWaterfowl in the genera Anas and Tadorna are suspected as vectors in the long-distance transmission of highly pathogenic avian influenza H5N1. The former Soviet Republics of Central Asia are situated at an important migratory crossroads for thes[...]
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Todd E. Katzner, Auteur ; Eugeny A. Bragin, Auteur ; E. J. Milner-Gulland, AuteurEagle populations worldwide are in decline and their demography is generally poorly understood. We use novel sensitivity analysis of stochastic simulation models to analyse the demography of the worlds highest-density and longest-studied populat[...]
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Todd E. Katzner, Auteur ; Maria Wheeler, Auteur ; Juan Jose Negro, Auteur ; Yula Kapetanakos, Auteur ; J. Andrew DeWoody, Auteur ; Marton Horvath, Auteur ; Irby Lovette, AuteurMcDonald and Griffith (2011) raise important points in their critique of reliance on feathers as a source of DNA for scientific research. Although those authors are right about many details, their one-size-fits all approach (i.e. prescribing blo[...]
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Vitaliy V. Ryabtsev, Auteur ; Todd E. Katzner, AuteurThe Eastern Imperial Eagle (Aquila heliaca), a vulnerable and declining species, is widely but sparsely distributed throughout its range. Because much of that range extends through the Russian-speaking world, relatively little on the species has[...]
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Todd E. Katzner, Auteur ; Evgeny A. Bragin, Auteur ; Steven T. Knick, Auteur ; Andrew T. Smith, AuteurWe evaluated the relationship between spatial variability in prey and food habits of eastern imperial eagles Aquila heliaca at a 90,000 ha national nature reserve in north-central Kazakhstan. Eagle diet varied greatly within the population and t[...]
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Jacob L. Berl, Auteur ; John W. Edwards, Auteur ; Jeffrey S. Bolsinger, Auteur ; Todd E. Katzner, Auteur
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Todd E. Katzner, Auteur ; Daniel S. Jackson, Auteur ; Jamie Ivy, Auteur ; Evgeny A. Bragin, Auteur ; Andrew DeWoody, AuteurSex ratio theory attempts to explain observed variation in offspring sex ratio at both the population and the brood levels. In the context of low-fecundity organisms producing high-investment offspring, the drivers of adaptive variation in sex r[...]
