| Titre : | Waterbirds 41(3) - September, 2018 |
| Type de document : | Bulletin |
| Paru le : | 01/09/2018 |
Dépouillements
Article
Agustina Gomez-Laich, Auteur ;
Ken Yoda, Auteur ;
Flavio Quintana, Auteur
Between 25-30 November 2013, 2014 and 2015, miniaturized video cameras were attached to Magellanic Penguins (Spheniscus magellanicus; n = 14) in Punta Norte/San Lorenzo, Peninsula Valdes, Chubut, Argentina. The objective was to examine prey sele[...]
Article
Kaitlyn M. Reintsma, Auteur ;
Peter C. McGowan, Auteur ;
Carl Callahan, Auteur ;
Tom Collier, Auteur ;
David Gray, Auteur ;
Jeffery D. Sullivan, Auteur ;
Diann J. Prosser, Auteur
Small unmanned aircraft systems present an emerging technology with the potential to survey colonial waterbird populations while reducing disturbance in comparison to traditional ground counts. Recent research with these systems has been perform[...]
Article
Lauren R. Dinan, Auteur ;
Alisa Halpin, Auteur ;
Ann Briggs, Auteur ;
Mary Bomberger Brown, Auteur ;
Joel G. Jorgensen, Auteur
Nest usurpation is a strategy in which an individual or pair of one species takes over the nest of another species. This is the first documented occurrence of a Piping Plover (Charadrius melodus) pair usurping an Interior Least Tern (Sternula an[...]
Article
Jennifer E. Chastant, Auteur ;
D. Tommy King, Auteur
Scant attention has been given to the molting patterns of known-age Double-crested Cormorants (Phalacrocorax auritus). In general, subadult individuals are identified with a tan, buffy or mottled chest, and adults are identified with a black che[...]
Article
Eduardo Palacios, Auteur ;
Daniel W. Anderson, Auteur
A rapid and reliable method to age California Brown Pelican (Pelecanus occidentalis californicus) pre-fledged young based on exposed culmen measurements is presented. In 1997, 1998, and 1999, a total of 52 unknown-age young were marked and recap[...]
Article
Jan Veen, Auteur ;
Hanneke Dallmeijer, Auteur ;
Cindy J. G. Van Damme, Auteur ;
Mardik F. Leopold, Auteur ;
Thor Veen, Auteur
A frequently used method to estimate diet composition is based on the identification of fish otoliths present in pellets and feces. However, whether pellets and feces provide similar unbiased estimates of the diet remains poorly understood. The [...]
Article
Renee E. Robison, Auteur ;
Daniel W. Anderson, Auteur ;
Kristofer M. Robison, Auteur
A quantitative investigation examining the effect of changes in wetland habitat on reproductive output of Western and Clark's grebes (Aechmophorus occidentalis and A. clarkii, respectively) was conducted. Earlier studies examined local factors i[...]
Article
Maciej Kamiński, Auteur ;
Jerzy Bańbura, Auteur ;
Bartosz Janic, Auteur ;
Lidia Marszal, Auteur ;
Piotr Minias, Auteur ;
Piotr Zieliński, Auteur
Nestling diet and parental provisioning rate are important determinants of reproductive success and future offspring performance in birds. The diet of Black Stork (Ciconia nigra) nestlings was characterized and tested for intra-seasonal and broo[...]
Article
D. V. Chip Weseloh, Auteur
Article
Veronica Laura D'Amico, Auteur ;
Ana Fazio, Auteur ;
Maria Gabriela Palacios, Auteur ;
Eliana Carabajal, Auteur ;
Marcelo Bertellotti, Auteur
Physiological parameters provide relevant information on the general physical condition of free-living birds. Blood parameters related to immune function, nutrition, and oxidative stress of Kelp Gulls (Larus dominicanus) that use fishery waste s[...]
Article
Flavia Ribeiro, Auteur ;
Livia Vanucci Lins, Auteur ;
Flavio Henrique Guimaraes Rodrigues, Auteur
The Brazilian Merganser (Mergus octosetaceus) is globally classified as a Critically Endangered species and is one of the world's rarest waterbirds. The breeding ecology of this species was studied between 2005 and 2016 in the region of the Serr[...]
Article
Tatiana Kasinsky, Auteur ;
Nicolas Suarez, Auteur ;
Cristian Marinao, Auteur ;
Pablo Yorio, Auteur
Kelp Gull (Larus dominicanus) foraging patterns were studied by deploying GPS loggers on 20 incubating individuals at their colony in the Bahia San Blas protected area, Argentina. Mean number of trips per day was 1.5 +/- 0.5, and mean trip durat[...]
Article
Jessica A. Reese, Auteur ;
Christopher Tonra, Auteur ;
Catherine Viverette, Auteur ;
Peter P. Marra, Auteur ;
Lesley P. Bulluck, Auteur
Stable isotope analysis is often used to identify the geographic origins of migratory bird populations. While this method can accurately predict the provenance of migratory species, stable hydrogen isotope values measured in feathers (delta H-2([...]
Article
Allison R. Fuller, Auteur ;
Gerard J. McChesney, Auteur ;
Richard T. Golightly, Auteur
Devil's Slide Rock, a rock sea stack on the central California coast near San Francisco, USA, hosts a Common Murre (Uria aalge) colony that was recently restored after it was extirpated in the mid-1980s. Since the late 1990s, low-flying aircraft[...]
Article
John P. Kelly, Auteur ;
Sarah A. Millus, Auteur ;
T. Emiko Condeso, Auteur
The functional roles of nesting heron species (Ardeidae) as top predators in regional wetland landscapes may be sensitive to variation in nesting abundances at subregional scales corresponding to available habitat for nesting and foraging within[...]
