| Titre : | Journal of Avian Biology 48(4) - APR 2017 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
James S. Adelman, Auteur ;
Corinne Mayer, Auteur ;
Dana M. Hawley, Auteur
Infectious diseases can cause host mortality through direct or indirect mechanisms, including altered behavior. Diminished anti-predator behavior is among the most-studied causes of indirect mortality during infection, particularly for systems i[...]
Article
Amanda J. Clauser, Auteur ;
Susan B. McRae, Auteur
King rails experience a wide range of temperatures during the course of the breeding season throughout their rapidly contracting geographic range. Incubating parent birds are adapted to keep their eggs within a temperature range appropriate for [...]
Article
Lorian Cobra Straker, Auteur ;
Joseph R. Jehl, Auteur
Eared grebes Podiceps nigricollis, like shorebirds and other long-distance migrants, lay down large amounts of fat to power their journeys. To investigate the pattern of how fat and soft tissue might be mobilized, we used grebes killed in migrat[...]
Article
Guy Beauchamp, Auteur
As the sun gradually lowers over the horizon, prey species with more sun in their eyes should have more difficulty in visually monitoring their surroundings for threats and thus experience a higher predation risk. In a unique setting, I could ex[...]
Article
A small badge of longevity: opposing survival selection on the size of white and black wing markings
Tuul Sepp, Auteur ;
Kalev Rattiste, Auteur ;
Lauri Saks, Auteur ;
Richard Meitern, Auteur ;
Janek Urvik, Auteur ;
Ants Kaasik, Auteur ;
Peeter Horak, Auteur
According to handicap principle, exaggerated ornamental traits are supposed to exert costs on their bearers. However, there is much less theoretical and practical consensus about whether and under which conditions ornament expression should posi[...]
Article
Chima J. Nwaogu, Auteur ;
Maurine W. Dietz, Auteur ;
B. Irene Tieleman, Auteur ;
Will Cresswell, Auteur
Birds should store body reserves if starvation risk is anticipated; this is known as an 'interrupted foraging response'. If foraging remains unrestricted, however, body mass should remain low to limit the predation risk that gaining and carrying[...]
Article
Aurelie Quinard, Auteur ;
Frank Cézilly, Auteur ;
Sebastien Motreuil, Auteur ;
Jean-Marc Rossi, Auteur ;
Clotilde Biard, Auteur
Although variation in plumage coloration is known to occur both between and within sexes, its study remains limited to a few bird families. The Zenaida dove Zenaida aurita is a socially monogamous tropical columbid bird species, characterized by[...]
Article
Juliana Valencia, Auteur ;
Concha Mateos, Auteur ;
Carlos de la Cruz, Auteur ;
Juan Carranza, Auteur
For cooperatively breeding birds, it has been proposed that breeders should reduce their investment in eggs when they count on helpers, because this can be compensated for by helpers provisioning of nestlings. Data from some species have support[...]
Article
Alejandra G. Ramos, Auteur ;
Hugh Drummond, Auteur
Parasites are a major risk for group-living animals and seabirds are notoriously susceptible to ectoparasite infestations because they commonly nest in dense colonies. Ticks parasitize seabirds across all biogeographical regions and they can be [...]
Article
Andy J. Boyce, Auteur ;
Thomas E. Martin, Auteur
Several long-standing hypotheses have been proposed to explain latitudinal patterns of life-history strategies. Here, we test predictions of four such hypotheses (seasonality, food limitation, nest predation and adult survival probability) by ex[...]
Article
Marina Xenophontos, Auteur ;
Emma Blackburn, Auteur ;
Will Cresswell, Auteur
Long-distance migratory flights with multiple stop-overs, multiple wintering sites, and small-scale connectivity in Afro-Palearctic migrants are likely to increase their vulnerability to environmental change and lead to declining populations. He[...]
Article
Devin R. de Zwaan, Auteur ;
Jennifer L. Greenwood, Auteur ;
Kathy Martin, Auteur
Variation in feather melanism and microstructure can arise through sexual selection and ecological functional drivers. Melanin-based plumage traits are associated with sexual dichromatism and the intensity of sexual selection in many avian speci[...]
Article
Hongtao Xiao, Auteur ;
Yigang Hu, Auteur ;
Zedong Lang, Auteur ;
Bohao Fang, Auteur ;
Weibin Guo, Auteur ;
Qi Zhang, Auteur ;
Xuan Pan, Auteur ;
Xin Lu, Auteur
Knowledge on species' breeding biology is the building blocks of avian life history theory. A review for the current status of the knowledge at a global scale is needed to highlight the priority for future research. We collected all available in[...]
Article
Seyed Mehdi Amininasab, Auteur ;
Martijn Hammers, Auteur ;
Oscar Vedder, Auteur ;
Jan Komdeur, Auteur ;
Peter Korsten, Auteur
Studies of age-specific reproductive performance are fundamental to our understanding of population dynamics and the evolution of life-history strategies. In species with bi-parental care, reproductive ageing trajectories of either parent may be[...]
Article
Jesus Gomez, Auteur ;
Gustavo Linan-Cembrano, Auteur
Colouration and patterning are widespread amongst organisms. Regarding avian eggs, colouration (reflectances) has been previously measured using spectrometers whereas spottiness has been determined using human-based scoring methods or by applyin[...]
