| Titre : | Journal of Field Ornithology 86(2) - juin 1, 2015 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Olivia D. Leonard, Auteur ;
Jonathan W. Moore, Auteur ;
Jeffery K. Riegel, Auteur ;
Andrew R. Meier, Auteur ;
John B. Dunning, Auteur ;
Kenneth F. Kellner, Auteur ;
Robert K. Swihart, Auteur
Responses of resident owls to changes in forest structure associated with forest management in the Central Hardwood Forest Region of the United States have not been widely studied. We estimated the winter occupancy of Barred Owls (Strix varia) a[...]
Article
Kristen G. Dillon, Auteur ;
Courtney J. Conway, Auteur
Our understanding of life history evolution has benefited from debates regarding the underlying causes, and geographic ubiquity, of spatial patterns in avian clutch sizes. Past studies have revealed that birds lay smaller clutch sizes at higher [...]
Article
Matthew R. Halley, Auteur ;
Aaron L. Holmes, Auteur ;
W. Douglas Robinson, Auteur
Facultative male incubation and allofeeding are thought to be behavioral adaptations by which male songbirds maximize their fitness by reducing the energetic stress of their mates. However, few data are available for most species that exhibit th[...]
Article
Most wood-warblers (Parulidae) are non-migratory residents of the Neotropics and subtropics, and the demographic characteristics of these species are poorly known. I examined the annual survival, reproductive output, dispersal, age of first bree[...]
Article
Sarah P. Saunders, Auteur ;
Francesca J. Cuthbert, Auteur
Few investigators have studied the offspring sex ratios of monomorphic shorebirds because visually determining the sex of juveniles is not possible. We investigated the ontogeny of an observed male-biased adult sex ratio in the federally endange[...]
Article
Karine Delord, Auteur ;
Gildas Roudaut, Auteur ;
Christophe Guinet, Auteur ;
Christophe Barbraud, Auteur ;
Sophie Bertrand, Auteur ;
Henri Weimerskirch, Auteur
Obtaining aerial high-resolution images of bird nesting colonies using remote-sensing technology such as satellite-based remote sensing, manned aircraft, or Unmanned Aerial Vehicles might not be possible for many researchers due to financial con[...]
Article
Robert N. Rosenfield, Auteur ;
Sarah A. Sonsthagen, Auteur ;
William E. Stout, Auteur ;
Sandra L. Talbot, Auteur
Raptors exhibit some of the highest rates of intra-pair copulations among birds, perhaps in an attempt by males to reduce the risk of being cuckolded. Indeed, the frequency of extra-pair fertilizations reported in studies of raptors to date is r[...]
Article
Leanne A. Grieves, Auteur ;
David M. Logue, Auteur ;
James S. Quinn, Auteur
Calls are functionally diverse signals that mediate behavior in a wide variety of contexts in both passerines and non-passerines. However, the call-based acoustic communication systems of non-passerines have received less attention from investig[...]
