| Titre : | Journal of Field Ornithology 83(3) - SEP 2012 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Emily A. McKinnon, Auteur ;
Kevin C. Fraser, Auteur ;
Antony W. Diamond, Auteur ;
Christopher C. Rimmer, Auteur ;
Jason M. Townsend, Auteur
Understanding turnover rates of stable isotopes in metabolically active tissues is critical for making spatial connections for migratory birds because samples provide information about pre-migratory location only until the tissue turns over to r[...]
Article
Jason M. Townsend, Auteur ;
Christopher C. Rimmer, Auteur ;
Kent P. McFarland, Auteur
Studies of the effects of transmitters on passerines have provided mixed results, but many have revealed no negative impacts. Most such studies have been conducted during the breeding season and, as a result, little is known about the possible e[...]
Article
Kimberly B. Brand, Auteur ;
Reed Bowman, Auteur
Many birds lose mass when feeding dependent young and multiple hypotheses have been proposed to explain this loss. The reproductive-stress hypothesis suggests that mass loss results from an energy deficit. The flight-efficiency hypothesis sugges[...]
Article
Lucas J. Redmond, Auteur ;
Michael T. Murphy, Auteur
Survival rates of young birds during the period between nest departure and their first breeding season is an important but difficult statistic to measure because of low natal site fidelity, especially for long-distance migrants. From 2002 to 200[...]
Article
David Hof, Auteur ;
Nicole Hazlett, Auteur
Much theory about communication in aggressive contexts hinges on the assumption that injury or death is a potential outcome of fighting. However, published accounts of intraspecific killings during competitive interactions between songbirds are [...]
Article
Scott F. Pearson, Auteur ;
Randall Moore, Auteur ;
Shannon M. Knapp, Auteur
Improving the conservation status of rare and declining species often requires multiple strategies targeted at several vital rates. We report on one of several ongoing management actions intended to benefit the declining population of Streaked H[...]
Article
Adrián B. Azpiroz, Auteur ;
Juan Pablo Isacch, Auteur ;
Rafael A. Dias, Auteur ;
Adrian S. Di Giacomo, Auteur ;
Carla Suertegaray Fontana, Auteur ;
Cristina Morales Palarea, Auteur
The grasslands of southeastern South America (SESA), comprising one of the most extensive grassland ecosystems in the Neotropics, have been negatively impacted by the development of the livestock industry, arable agriculture, and forestry. SESA [...]
Article
Joseph B. Buchanan, Auteur ;
James E. Lyons, Auteur ;
Lori J. Salzer, Auteur ;
Roberto Carmona, Auteur ;
Nallely Arce, Auteur ;
Gary J. Wiles, Auteur ;
Keith Brady, Auteur ;
Gerald E. Hayes, Auteur ;
Steven M. Desimone, Auteur ;
Greg Schirato, Auteur ;
Warren Michaelis, Auteur
Many shorebirds exhibit within- and among-year site fidelity during their annual cycle. Little is known, however, about the migration ecology of Red Knots (Calidris canutus) that migrate along the Pacific Flyway and occur in Washington in number[...]
Article
A variety of pole-mounted cameras have been developed for monitoring nest cavities. However, currently available camera systems may either be prohibitively expensive or difficult to assemble. I developed an inexpensive (
Article
Guillermo Fernández, Auteur ;
David B. Lank, Auteur
Nonbreeding shorebirds often alternate social structure between anonymous flocks and territorial behavior in response to different environmental factors. To evaluate specific drivers for one species, we studied the spacing behavior of wintering [...]
