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Article
Robert J. Marquis, Auteur ; Christopher J. Whelan, Auteur ; Megan B. Garfinkel, AuteurInsectivorous bird populations are declining globally, as are the insects upon which they depend. Furthermore, many of the plants on which those herbivorous insects depend are being displaced by the spread of agriculture and invasion by exotic s[...]
Article
Erik Kiviat, Auteur ; Christopher J. Whelan, Auteur ; Michelle L. Haviland, AuteurData are scarce on bird habitat provided by long-present, abundant, nonnative plants. Knotweed (Polygonum cuspidatum s.l.) is a robust, shrub-like herb 2–3 m tall that can produce a large aboveground biomass and dense cover. Knotweed is native t[...]
Article
Megan Garfinkel, Auteur ; Emily Minor, Auteur ; Christopher J. Whelan, AuteurGeneralist insectivorous birds can provide ecosystem services in agricultural landscapes by consuming arthropod pests, or they can provide disservices when they consume beneficial arthropods. To examine bird impacts on arthropod communities, inc[...]
Article
Martin Nyffeler, Auteur ; Çagan H. Sekercioglu, Auteur ; Christopher J. Whelan, AuteurIn this paper, we present an estimate of the predation impact of the global population of insectivorous birds based on 103 (for the most part) published studies of prey consumption (kg ha−1 season−1) of insectivorous birds in seven biome types. [...]
Chapitre
Christopher J. Whelan, Auteur ; Çagan H. Sekercioglu, Auteur ; Daniel G. Wenny, Auteur | [S.l.] : University of Chicago Press | 2016
Chapitre
Christopher J. Whelan, Auteur ; Diana F. Tomback, Auteur ; Dave Kelly, Auteur ; Matthew D. Johnson, Auteur 2016
Ouvrage
Çagan H. Sekercioglu, Éditeur scientifique ; Daniel G. Wenny, Éditeur scientifique ; Christopher J. Whelan, Éditeur scientifique | [S.l.] : University of Chicago Press Chicago | 2016Why Birds Matter approaches ecosystem services from an ornithological perspective and asks what economic value we can ascribe to those services, if any, and how this value should inform conservation. An international collection of ornithologists[...]
Article
Christopher J. Whelan, Auteur ; Joel S. Brown, Auteur ; Amy E. Hank, AuteurCapsule House Sparrows preferred millet over seeds of prairie forbs and grasses native to the USA. By reducing the abundance and availability of some grains, changing agricultural practices may contribute to the population declines of House Spar[...]
Article
Christopher J. Whelan, Auteur ; Çagan H. Sekercioglu, Auteur ; Daniel G. Wenny, AuteurBirds are conspicuous in many habitats, occur worldwide, are ecologically diverse, and are better known than other vertebrate groups. Birds devour pests, pollinate flowers, disperse seeds, scavenge carrion, cycle nutrients, and modify the enviro[...]
Article
Lee Swanson, Auteur ; Rasheed A. Sanyaolu, Auteur ; Thomas Gnoske, Auteur ; Christopher J. Whelan, Auteur ; Eric V. Lonsdorf, Auteur ; Norbert J. Cordeiro, AuteurCapsule Mammalian and avian predators respond differently to decoys. Aims To investigate if parental attendance, which is often not accounted for in artificial nest studies, could alter predator guilds and predation rates. Methods To analyze the[...]
Article
Lee Swanson, Auteur ; Rasheed A. Sanyaolu, Auteur ; Thomas Gnoske, Auteur ; Christopher J. Whelan, Auteur ; Eric V. Lonsdorf, Auteur ; Norbert J. Cordeiro, AuteurCapsule Mammalian and avian predators respond differently to decoys. Aims To investigate if parental attendance, which is often not accounted for in artificial nest studies, could alter predator guilds and predation rates. Methods To analyze the[...]
Article
Heath M. Hagy, Auteur ; Joshua D. Stafford, Auteur ; Randolph V. Smith, Auteur ; Aaron P. Yetter, Auteur ; Christopher S. Hine, Auteur ; Michelle M. Horath, Auteur ; Christopher J. Whelan, AuteurThe interaction of animals with their food can yield insights into habitat characteristics, such as perceived predation risk and relative quality. We deployed experimental foraging patches in wetlands used by migrating dabbling ducks Anas spp. i[...]
