| Titre : | Journal of Field Ornithology 87(4) - December, 2016 |
| Type de document : | Bulletin |
| Paru le : | 01/12/2016 |
Dépouillements
Article
Jessie D. Golding, Auteur ;
Victoria J. Dreitz, Auteur
Estimating species abundance is important for land managers, especially for monitoring conservation efforts. The two main survey methods for estimating avian abundance are point counts and transects. Previous comparisons of these two methods hav[...]
Article
L. Scott Johnson, Auteur ;
Chelsea L. Connor, Auteur ;
Andre V. Nguyen, Auteur
In many bird species, only females incubate the eggs, but both sexes feed nestlings. The means by which males of such species discover hatching and transition to feeding their offspring remains almost completely unexplored. Of particular interes[...]
Article
Andrew S. Johnson, Auteur ;
Johanna Perz, Auteur ;
Erica Nol, Auteur ;
Nathan R. Senner, Auteur
The conservation of migratory birds requires internationally coordinated efforts that, in turn, demand an understanding of population dynamics and connectivity throughout a species' range. Whimbrels (Numenius phaeopus) are a widespread long-dist[...]
Article
James A. Cox, Auteur ;
Joshua K. McCormick, Auteur
Red-cockaded Woodpeckers (Leuconotopicus borealis) were extirpated from Tall Timbers Research Station in the early 1980s. To help meet conservation goals established for this imperiled species in north Florida, we attempted to reintroduce the wo[...]
Article
Lucas Krüger, Auteur ;
Vitor H. Paiva, Auteur ;
Fernanda I. Colabuono, Auteur ;
Maria V. Petry, Auteur ;
Rosalinda C. Montone, Auteur ;
Jaime A. Ramos, Auteur
Trindade Petrels (Pterodroma arminjoniana) are vulnerable gadfly petrels that breed on the remote Trindade Island, located ~1100 km off the Brazilian coast. Little is known about their spatial ecology, and their trophic ecology has only been des[...]
Article
Davy S. Bosman, Auteur ;
Eric W. M. Stienen, Auteur ;
Luc Lens, Auteur
Among most species of birds, survival from hatching throughout the first year of life is generally lower than subsequent survival rates. Survival of young birds during their first year may depend on a combination of selection, learning, unpredic[...]
Article
Dominique Chabot, Auteur ;
Charles M. Francis, Auteur
Bird surveys conducted using aerial images can be more accurate than those using airborne observers, but can also be more time-consuming if images must be analyzed manually. Recent advances in digital cameras and image-analysis software offer un[...]
