| Titre : | Emu - Austral Ornithologie 117(2) - April, 2017 |
| Type de document : | Bulletin |
| Paru le : | 01/04/2017 |
Dépouillements
Article
Nancy Verónica Marinero, Auteur ;
Joaquin L. Navarro, Auteur ;
Monica B. Martella, Auteur
The Puna Rhea (Rhea tarapacensis) is a large, flightless herbivorous bird found in the Andes Mountains of four countries, namely Argentina, Chile, Bolivia and Peru. Despite its ample distribution range, little is known about the ecological requi[...]
Article
Charli de Vos, Auteur ;
Michael I. Cherry, Auteur
Global declines in cuckoo numbers have been variously attributed to reduced prey availability; changes in their hosts’ ranges; or climate-induced changes. We used data from two Southern African Bird Atlas Projects to determine whether migrant cu[...]
Article
Stefan Schoombie, Auteur ;
Ben J. Dilley, Auteur ;
Delia Davies, Auteur ;
Trevor Glass, Auteur ;
Peter G. Ryan, Auteur
Sooty Albatrosses (Phoebetria fusca; Endangered) breed only on sub-Antarctic islands in the South Atlantic and south-west Indian Oceans, with most of the population at Gough Island (≈37%), the Prince Edward Islands (≈24%) and the Tristan da Cunh[...]
Article
Steffen Oppel, Auteur ;
Jennifer L. Lavers, Auteur ;
Angus H. Donaldson, Auteur ;
Alice K. Forrest, Auteur ;
Gregory T. W. McClelland, Auteur ;
Alexander L. Bond, Auteur ;
M. de L. Brooke, Auteur
One of the most important breeding colonies for gadfly petrels in the sub-tropics, Henderson Island in the South Pacific Ocean, was subjected to a rat eradication attempt in 2011, but the eradication failed. Here we examine whether the current p[...]
Article
Simon C. Griffith, Auteur ;
Daniel M. Hooper, Auteur
The Long-tailed Finch (Poephila acuticauda) is endemic to Australia’s northern tropics and comprises two sub-species differentiated by bill colour: yellow in the western sub-species acuticauda and red in the eastern sub-species hecki. We present[...]
Article
Stephen A. Murphy, Auteur ;
Jeremy J. Austin, Auteur ;
Rachel K. Murphy, Auteur ;
Jennifer Silcock, Auteur ;
Leo Joseph, Auteur ;
Stephen T. Garnett, Auteur ;
Nicholas P. Leseberg, Auteur ;
James E. M. Watson, Auteur ;
Allan H. Burbidge, Auteur
A population of Night Parrots (Pezoporus occidentalis) was discovered in 2013 in western Queensland and has become the primary focus of efforts aimed at conserving habitat and protecting the species from extinction. Critical information on nesti[...]
Article
Carlos Bosque, Auteur ;
Enrique H. Bucher, Auteur
The plantcutters (Phytotoma), a group of three endemic Cotingidae from southern South America, are the most folivorous passerines yet known. Although the foods of adult plantcutters have been investigated, there is no information on the diet of [...]
Article
Esteban Botero-Delgadillo, Auteur ;
Daniela Serrano, Auteur ;
Nicole Orellana, Auteur ;
Yanina Poblete, Auteur ;
Rodrigo A. Vásquez, Auteur
Environmental adjustment is the most invoked explanation for intra-seasonal variation in bird nest morphology. However, time constraints may also be important, coming as a trade-off between the costs of nest building and the requirement to coinc[...]
Article
Samantha M. Lantz, Auteur ;
Jordan Boersma, Auteur ;
Hubert Schwabl, Auteur ;
Jordan Karubian, Auteur
Sexual ornaments, including plumage ornamentation, are often studied during breeding periods even though signal development can take place months earlier. This temporal disconnect potentially obscures the proximate mechanisms that underlie signa[...]
Article
Carolina Isabel Miño, Auteur ;
Viviana Massoni, Auteur
In birds, the selection of nesting sites and mates has a profound influence on the daily interactions of individuals. Both behaviours are energetically costly and time-consuming and can strongly affect the Darwinian fitness of individuals. Using[...]
Article
Virginia E. Abernathy, Auteur ;
Naomi E. Langmore, Auteur
Little is known about the early stages of the coevolutionary interactions between brood parasites and their hosts or how rapidly hosts evolve defences. We investigated the success of breeding attempts by the brood-parasitic Pacific Koel (Eudynam[...]
