| Titre : | Journal of Avian Biology 46(3) - MAY 2015 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Robert Stach, Auteur ;
Thord Fransson, Auteur ;
Sven Jakobsson, Auteur ;
Cecilia Kullberg, Auteur
Migratory birds use stopovers to replenish their fuel reserves and they generally spend more time at stopover sites than they do in actual flight. When arriving at a new stopover site birds may need to search extensively to find a suitable feedi[...]
Article
Edyta Podmokla, Auteur ;
Anna Dubiec, Auteur ;
Aneta Arct, Auteur ;
Szymon M. Drobniak, Auteur ;
Lars Gustafsson, Auteur ;
Mariusz Cichoń, Auteur
Extra-pair matings comprise a common reproductive strategy among socially monogamous bird species. However, it remains unclear why females decide to mate with extra-pair males. Indirect benefits in terms of improving offspring genetic quality ar[...]
Article
Caterina Funghi, Auteur ;
Goncalo C. Cardoso, Auteur ;
Paulo G. Mota, Auteur
Sexual signals can comprise traits with multiple functions, and species with extreme phenotypes offer an opportunity to link function with signal evolution. This is the case in the serin Serinus serinus, a songbird with extremely fast syllable r[...]
Article
Felix Liechti, Auteur ;
Chiara Scandolara, Auteur ;
Diego Rubolini, Auteur ;
Roberto Ambrosini, Auteur ;
Fraenzi Korner-Nievergelt, Auteur ;
Steffen Hahn, Auteur ;
Roberto Lardelli, Auteur ;
Maria Romano, Auteur ;
Manuela Caprioli, Auteur ;
Andrea Romano, Auteur ;
Beatrice Sicurella, Auteur ;
Nicola Saino, Auteur
We investigated sex- and year-dependent variation in the temporal and spatial movement pattern of barn swallows Hirundo rustica during the non-breeding period. Hundred and three individuals equipped with miniaturized light-level geolocators at t[...]
Article
Osamu K. Mikami, Auteur ;
Nozomu J. Sato, Auteur ;
Keisuke Ueda, Auteur ;
Keita D. Tanaka, Auteur
Many avian brood parasites remove one or more host eggs before laying their own eggs in the host nest. Various hypotheses have been proposed to explain the adaptive significance of this behaviour, but none of them provides an adequate explanatio[...]
Article
Caroline Isaksson, Auteur ;
Mark A. Hanson, Auteur ;
Graham C. Burdge, Auteur
In birds, fatty acids (FA) have three main functions; they are structural components of cell membranes, metabolic fuel, and inflammatory molecules. Environmental factors, such as diet and ambient temperature, affect FA composition, thereby funct[...]
Article
Christopher M. Tonra, Auteur ;
Christiaan Both, Auteur ;
Peter P. Marra, Auteur
The study of migratory connectivity is rapidly growing in ornithology, as is the technology used to measure it. While use of extrinsic markers, such as archival tags, is becoming more prevalent, for many small species the best tool available for[...]
Article
Renata Duraes Ribeiro, Auteur ;
John E. McCormack, Auteur ;
Hernan G. Alvarez, Auteur ;
Luis Carrasco, Auteur ;
Gregory F. Grether, Auteur ;
Patricio Mena-Olmedo, Auteur ;
Raul Sedano, Auteur ;
Thomas B. Smith, Auteur ;
Jordan Karubian, Auteur
Manakins (Pipridae) are well know for elaborate male sexual displays and ornate plumage coloration, both of which are thought to have evolved as a consequence of lekking breeding, the prevalent mating system in the family. Less attention has bee[...]
Article
Bernd Leisler, Auteur ;
Hans Winkler, Auteur
In this paper, we take a closer look into the evolution of Acrocephalus warblers on islands in the Atlantic, Indian and Pacific Oceans. The shape-related morphological evolution of island species is characterized by changes in the hind limb, fli[...]
Article
T. M. Haff, Auteur ;
A. G. Horn, Auteur ;
M. L. Leonard, Auteur ;
R. D. Magrath, Auteur
Predation is an important source of nest mortality in many bird species and calling near the nest can increase this risk, yet adults of many species regularly vocalize near their nests. Some of these calls serve clearly adaptive functions, such [...]
Article
Fernando A. Milesi, Auteur ;
Luis Marone, Auteur
Conventional evolutionary and behavioral reasoning expects foragers to show strong spatial preferences in environments with heterogeneous resource distribution. Moreover, consumers should benefit from exploiting the information embedded in envir[...]
