| Titre : | Journal of Field Ornithology 90(1) - April, 2019 |
| Type de document : | Bulletin |
| Paru le : | 01/04/2019 |
Dépouillements
Article
Sophia C. M. Orzechowski, Auteur ;
J. Ryan Shipley, Auteur ;
Teresa M. Pegan, Auteur ;
David W. Winkler, Auteur
Blood sampling is a frequently used method of collecting genetic and physiological data in natural populations, and understanding the possible impact of blood sampling on individuals and populations is important, both for the welfare of study or[...]
Article
Lisa O'Donnell, Auteur ;
C. Craig Farquhar, Auteur ;
Jason W. Hunt, Auteur ;
Kelly Nesvacil, Auteur ;
Jennifer L. Reidy, Auteur ;
William Reiner, Auteur ;
Jonathan L. Scalise, Auteur ;
Christopher C. Warren, Auteur
Golden-cheeked Warblers (Setophaga chrysoparia) are endangered songbirds that breed exclusively in the Ashe juniper (Juniperus ashei) and oak (Quercus spp.) woodlands of central Texas. Despite being the focus of numerous studies, we still know l[...]
Article
Henry C. Stevens, Auteur ;
Elaine M. Metz, Auteur ;
Percy Saboya Del Castillo, Auteur ;
Juan Díaz Alván, Auteur ;
Mark T. Bowler, Auteur
White-sand forests are patchily distributed ecosystems covering just 5% of Amazonia that host many specialist species of birds not found elsewhere, and these forests are threatened due to their small size and human exploitation of sand for const[...]
Article
Cody M. Kent, Auteur ;
Ashley M. Peele, Auteur ;
Thomas W. Sherry, Auteur
Terrestrial arthropods are diverse, and quantifying their availability to consumers is important for understanding both consumer and insect distribution, abundance, and communities. However, characterizing arthropod communities in complex forest[...]
Article
Cardy H. Saunders, Auteur ;
Dave Shutler, Auteur
Many researchers catch adult birds at nest boxes using a vertical prop that supports a horizontal flap that drops down when an adult enters to feed nestlings. Because the prop is visible, some birds may be too wary to enter nest boxes, or they m[...]
Article
William F. Mitchell, Auteur ;
Rohan H. Clarke, Auteur
Most birds sleep while roosting at night. Although a widespread behavior, few investigators have studied the nocturnal roosting behavior of birds. Studies conducted to date have either focused on species that roost communally or used radio-telem[...]
Article
Jeffrey M. Kozma, Auteur ;
Andrew J. Kroll, Auteur ;
Jamie Thornton‐Frost, Auteur
Gray Flycatchers (Empidonax wrightii) breed in a variety of habitats in the arid and semi-arid regions of the western United States, but little is known about their breeding biology, especially in the northern portion of their range where they n[...]
Article
Carlos Bosque, Auteur ;
M. Andreina Pacheco, Auteur
Although sex ratios at conception are close to 1:1 in most species of birds, skewed adult sex ratios (ASRs) are not uncommon in populations of birds, and occur frequently at local and temporal scales. ASRs are a key variable influencing populati[...]
