| Titre : | Journal of Avian Biology 45(6) - NOV 2014 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Anik Pannetier Lebeuf, Auteur ;
Jean-Francois Giroux, Auteur
Density-dependent effects on reproduction can arise through variation in habitat quality or increased competition and interference among neighbours. Negative effects have been found in avian populations and these have been mainly attributed to f[...]
Article
Andrew Digby, Auteur ;
Michael Towsey, Auteur ;
Ben D. Bell, Auteur ;
Paul D. Teal, Auteur
Temporal and environmental variation in vocal activity can provide information on avian behaviour and call function not available to short-term experimental studies. Inter-sexual differences in this variation can provide insight into selection e[...]
Article
Cara J. Joos, Auteur ;
Frank R. Thompson, Auteur ;
John Faaborg, Auteur
Variation in habitat quality among territories within a heterogeneous patch should influence reproductive success of territory owners. Further, territory settlement order following an ideal despotic distribution (IDD) should predict the fitness [...]
Article
Melissa L. Grunst, Auteur ;
John T. Rotenberry, Auteur ;
Andrea S. Grunst, Auteur
In urban habitats, organisms face unique fitness challenges including disturbance from human activity and noise. One physiological mechanism that may be plastically or evolutionarily modified to ameliorate deleterious effects of anthropogenic di[...]
Article
Nao Ota, Auteur ;
Masayo Soma, Auteur
Birdsong is a sexual signal that serves as an indicator of male quality. There is already abundant evidence that song elaboration reflects early life-history because early developmental stress affects neural development of song control systems, [...]
Article
David E. Gammon, Auteur
Many aspects of birdsong vary seasonally, but we know almost nothing about seasonal variation in vocal mimicry, a conspicuous feature of the songs of 15-20% of bird species. I sampled spontaneous song from nine, free-living, male northern mockin[...]
Article
J.-F. Therrien, Auteur ;
G. Gauthier, Auteur ;
D. Pinaud, Auteur ;
J. Bety, Auteur
Mobility and irruptive movements have been proposed as mechanisms that could allow some diet specialists to inhabit and breed in environments with highly unpredictable resources, like the arctic tundra. The snowy owl, one of the main avian preda[...]
Article
Joshua T. Ackerman, Auteur ;
Mark P. Herzog, Auteur ;
John Y. Takekawa, Auteur ;
C. Alex Hartman, Auteur
Identifying differences in reproductive success rates of closely related and sympatrically breeding species can be useful for understanding limitations to population growth. We simultaneously examined the reproductive ecology of American avocets[...]
Article
Article
Dariusz Jakubas, Auteur ;
Katarzyna Wojczulanis-Jakubas, Auteur ;
Lech Iliszko, Auteur ;
Miroslaw Darecki, Auteur ;
Lech Stempniewicz, Auteur
Energy and time allocation differs between incubation and chick-rearing periods, which may lead to an adjustment in the foraging behaviour of parent birds. Here, we investigated the foraging behaviour of a small alcid, the little auk Alle alle d[...]
Article
Janet L. Gardner, Auteur ;
Tatsuya Amano, Auteur ;
Patrica R. Y. Backwell, Auteur ;
Karen Ikin, Auteur ;
William J. Sutherland, Auteur ;
Anne Peters, Auteur
Alongside well researched shifts in species' distributions and phenology, reduction in the body size of organisms has been suggested as a third universal response to contemporary climate change. Despite mounting evidence for declining body size,[...]
