| Titre : | Journal of Field Ornithology 85(4) - DEC 2014 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Scott T. Walter, Auteur ;
Michael R. Carloss, Auteur ;
Thomas J. Hess, Auteur ;
Paul L. Leberg, Auteur
Marine oil spills may have extensive and deleterious effects on coastal waterbirds, but pre-spill data sets are often not available for making comparisons of demographics to the period following a spill. The 2010 Deepwater Horizon oil spill allo[...]
Article
Jessica R. Henkel, Auteur ;
Bryan J. Sigel, Auteur ;
Caz M. Taylor, Auteur
The coastline of the Gulf of Mexico in the United States is an important wintering and stopover region for migratory shorebirds. The Deepwater Horizon oil spill (April-August 2010) impacted more than 1700 km of this coastline and could potential[...]
Article
Angela Schmitz Ornes, Auteur ;
Andre Herbst, Auteur ;
Andreas Spillner, Auteur ;
Wolfgang Mewes, Auteur ;
Moriz Rauch, Auteur
Spottiness is an important component of the morphology of bird eggs and a number of methods have been developed for characterizing variation in spottiness. We developed a quantitative method for measuring and comparing eggs to determine if femal[...]
Article
Matthew J. Baumann, Auteur ;
Spencer C. Galen, Auteur ;
Nicholas D. Pederson, Auteur ;
Christopher C. Witt, Auteur
Flycatchers of the genus Empidonax are readily misidentified in the field, in the hand, and even in museum collections. We describe a novel plumage feature that can be used to distinguish Yellow-bellied Flycatchers (E. flaviventris) from the two[...]
Article
Intraclutch egg size variation may non-adaptively result from nutritional/energetic constraints acting on laying females or may reflect adaptive differential investment in offspring in relation to laying/hatching order. This variation may contri[...]
Article
Kristen S. Ellis, Auteur ;
Randy T. Larsen, Auteur ;
Robert N. Knight, Auteur ;
John F. Cavitt, Auteur
Occupancy modeling can be used to identify habitat characteristics associated with species occurrence. Additionally, occupancy sampling can provide measures of detection probability, increasing confidence in monitoring efforts. Little is known a[...]
Article
Than J. Boves, Auteur ;
Jinelle H. Sperry, Auteur ;
Kristin Comolli, Auteur ;
Patrick J. Weatherhead, Auteur
The cost of brood parasitism favors the evolution of host behaviors that reduce the risk or expense of being parasitized. Endangered Black-capped Vireos (Vireo atricapilla) have likely coexisted with brood-parasitic Brown-headed Cowbirds (Moloth[...]
Article
Natalie V. Sánchez, Auteur ;
Luis E. Vargas-Castro, Auteur ;
Gerardo Avalos, Auteur ;
Federico Paniagua, Auteur
Some understory insectivorous birds manage to persist in tropical forest fragments despite significant habitat loss and forest fragmentation. Their persistence has been related to arthropod biomass. In addition, forest structure has been used as[...]
