| Titre : | Journal of Field Ornithology 87(2) - juin 1, 2016 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Aaron D. Flesch, Auteur ;
Carlos González Sánchez, Auteur ;
Javier Valenzuela Amarillas, Auteur
The Sierra Madre Occidental and neighboring Madrean Sky Islands span a large and biologically diverse region of northwest Mexico and portions of the southwestern United States. Little is known about the abundance and habitat use of breeding bird[...]
Article
Valentina Ferretti, Auteur ;
Marcela Liljesthröm, Auteur ;
Aldana S. López, Auteur ;
Irby J. Lovette, Auteur ;
David W. Winkler, Auteur
Geographic patterns of variation in life-history traits have puzzled researchers for decades. However, the widely accepted idea that mating systems exhibit a tropical–temperate latitudinal trend, with extra-pair mating systems being the norm amo[...]
Article
Alex E. Jahn, Auteur ;
Jose I. Giraldo, Auteur ;
Maggie MacPherson, Auteur ;
Diego T. Tuero, Auteur ;
José Hernán Sarasola, Auteur ;
Joaquin Cereghetti, Auteur ;
Diego A. Masson, Auteur ;
Marvin V. Morales, Auteur
Understanding the annual cycle of migratory birds is imperative for evaluating the evolution of life-history strategies and developing effective conservation strategies. Yet, we still know little about the annual cycle of migratory birds that br[...]
Article
Dianhua Ke, Auteur ;
Michael Griesser, Auteur ;
Zuhao Huang, Auteur
Recent estimates suggest that 9% of bird species are cooperative breeders. However, little is known about the breeding behavior of many species, particularly those in the Indomalayan and Neotropical regions. Our objective was to provide an overv[...]
Article
A. Townsend Peterson, Auteur ;
Adolfo G. Navarro-Sigüenza, Auteur
Mexico has a megadiverse avifauna that includes many endemic elements, as well as rich sets of species ranging farther north or farther south in the Americas. This avifauna, nonetheless, has suffered considerable losses as a consequence of long-[...]
Article
Afonso D. Rocha, Auteur ;
Pedro M. Araújo, Auteur ;
Filipe R. Martinho, Auteur ;
Jaime A. Ramos, Auteur ;
José A. Masero, Auteur
Analysis of fatty acids from adipose tissue can provide important information about the physiological and nutritional condition of birds. However, non-lethal biopsy procedures and their potential negative effects on small and medium-sized birds [...]
Article
Rodney B. Siegel, Auteur ;
Ron Taylor, Auteur ;
James F. Saracco, Auteur ;
Lauren Helton, Auteur ;
Sarah Stock, Auteur
Black-headed Grosbeaks (Pheucticus melanocephalus) have been observed to undergo prebasic molt during fall in the North American Monsoon region of the southwestern United States and northwestern Mexico, but it is unknown whether molt migration i[...]
Article
Randall J. Wilk, Auteur ;
Martin G. Raphael, Auteur ;
Thomas D. Bloxton, Auteur
Marbled Murrelets (Brachyramphus marmoratus) are listed as threatened in the portion of their range extending from British Columbia to California due to loss of nesting habitat. Recovery of Marbled Murrelet populations requires a better understa[...]
