| Titre : | Journal of Field Ornithology 82(2) - JUN 2011 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
James W. Rivers, Auteur ;
David A. Rintoul, Auteur
Despite the critical role of fat in providing energy for large-scale seasonal movements, little is known about the fatty acid composition of shorebird depot fat. Fatty acid composition is important because it may impact flight performance and se[...]
Article
L. Scott Johnson, Auteur ;
Shannon M. Murphy, Auteur ;
Gordon W. Parrish, Auteur
Recent studies suggest that songbirds have a better sense of smell than initially suspected. Work is now focused on determining how birds use their sense of smell to enhance survival and reproduction. One question is whether birds use smell to d[...]
Article
Martin D. Jacobson, Auteur ;
Eric T. Tsakiris, Auteur ;
Ashley M. Long, Auteur ;
William E. Jensen, Auteur
Methods for monitoring bird nests might influence rates of nest predation, but the effects of various methods (e. g., visual markers and observer visitation rates) are often separately investigated among disparate avian taxa and geographic regio[...]
Article
John D. Lloyd, Auteur ;
Terry Doyle, Auteur
The avifauna of south Florida's mangrove forests is unique and relatively unstudied. The population status of landbirds that breed in these forests is currently unknown, and this lack of information is especially problematic for species that hav[...]
Article
Samuel W. Kelley, Auteur ;
Dean Ransom, Auteur ;
Jerrod A. Butcher, Auteur ;
Gerral G. Schulz, Auteur ;
Brady W. Surber, Auteur ;
William E. Pinchak, Auteur ;
Carlos A. Santamaria, Auteur ;
Luis A. Hurtado, Auteur
Greater Roadrunners (Geococcyx californianus) are common, poorly studied birds of arid and semi-arid ecosystems in the southwestern United States. Conservation of this avian predator requires a detailed understanding of their movements and spati[...]
Article
Nicholas J. Bayly, Auteur ;
Camila Gómez, Auteur
Migration represents one of the most vulnerable stages of a migrant's life cycle, but the strategies and stopover sites used by Neotropical migrants in Central America are not well known. We carried out constant-effort mist netting and conducted[...]
Article
David E. Gammon, Auteur ;
Carly E. Altizer, Auteur
Detailed studies of the patterns and processes associated with avian vocal mimicry are rare. Some vocal mimics, such as Northern Mockingbirds (Mimus polyglottos), often produce song types in rapid succession, but no published data exist concerni[...]
Article
Rafael Ruiz-De-Castañeda, Auteur ;
Ana Isabel Vela, Auteur ;
Elisa Lobato, Auteur ;
Víctor Briones, Auteur ;
Juan Moreno, Auteur
Bacteria grow on avian eggshells and thus can potentially cause diseases in developing embryos. Little is known about culturable bacteria colonizing avian eggshells in free-living birds, with most studies restricted to poultry. Our objective was[...]
Article
Megan L. Harrison, Auteur ;
Nancy A. Mahony, Auteur ;
Pat Robinson, Auteur ;
Alicia Newbury, Auteur ;
David J. Green, Auteur
Livestock grazing in the shortgrass steppe of the Intermountain region of British Columbia may have a negative impact on ground-nesting birds, but evidence of such an impact is lacking. We examined nest-site selection and productivity of ground-[...]
Article
Chiyeung Choi, Auteur ;
Ning Hua, Auteur ;
Xiaojing Gan, Auteur ;
Christer Persson, Auteur ;
Qiang Ma, Auteur ;
Hongxi Zang, Auteur ;
Zhijun Ma, Auteur
Although most shorebirds exhibit deferred migration and deferred breeding during their first summer, Dunlins (Calidris alpina) migrate to breeding areas and breed during their first summer. First-year and adult Dunlins should, therefore, have si[...]
Article
Elizabeth A. Gow, Auteur ;
Tyler W. Done, Auteur ;
Bridget J. M. Stutchbury, Auteur
Radio-tags are commonly used in studies of avian behavior and ecology, even though many studies have revealed negative impacts of radio-tags. Other studies of songbirds have revealed no negative effects of radio-tags on parental care, nesting su[...]
Article
James S. Steward, Auteur ;
Andrew J. Pierce, Auteur
As tropical habitats continue to be cleared or degraded, obtaining basic information about the ecology of birds in intact habitats is essential for understanding their life histories. We studied the breeding biology of Orange-breasted Trogons (H[...]
