| Titre : | Journal of Avian Biology 49(7) - July 2018 |
| Type de document : | Bulletin |
| Paru le : | 01/07/2018 |
Dépouillements
Article
Thomas Kvalnes, Auteur ;
Anja Ås Røberg, Auteur ;
Henrik Jensen, Auteur ;
Håkon Holand, Auteur ;
Henrik Pärn, Auteur ;
Bernt-Erik Sæther, Auteur ;
Thor Harald Ringsby, Auteur
Propagule size is an important maternal effect on offspring fitness and phenotype in birds and other oviparous animals. The performance of propagules often increases with size, but a fluctuating environment may introduce temporal variation in th[...]
Article
L. Hodgson, Auteur ;
J. R. Waas, Auteur ;
J. R. Foote, Auteur
During the dawn chorus songbirds initiate singing activities just prior to sunrise. Environmental factors affect the timing of the dawn chorus, but relatively little is known about how behavioural cues influence chorus timing. We assessed whethe[...]
Article
Sarah Harris, Auteur ;
Matti Kervinen, Auteur ;
Christophe Lebigre, Auteur ;
Thomas W. Pike, Auteur ;
Carl D. Soulsbury, Auteur
Male ornaments function as honest cues of male quality in many species and are subject to intra- and intersexual selection. These ornaments are generally studied during peak expression, however their size outside the breeding season may determin[...]
Article
Motti Charter, Auteur ;
Ido Izhaki, Auteur ;
Alexandre Roulin, Auteur
Fledgling birds sometimes abandon their own nest and move to neighboring nests where they are fed by host parents. This behaviour, referred to as ‘nest-switching’, is well known in precocial birds that are mobile soon after hatching and can easi[...]
Article
Izabela Kulaszewicz, Auteur ;
Katarzyna Wojczulanis‐Jakubas, Auteur ;
Dariusz Jakubas, Auteur
Reproduction is a demanding phase of bird's life cycle and imposes various physiological challenges. Increasing oxidative stress (OS) has been proposed as one of the costs associated with reproduction. In this study, we investigate the level of [...]
Article
Heiko Schmaljohann, Auteur ;
Florian Müller, Auteur ;
Thomas Klinner, Auteur ;
Cas Eikenaar, Auteur
In migratory songbirds, older individuals are thought to be more efficient migrants than younger individuals. Age-specific differences in migratory efficiency have been reported mainly in respect of arrival timing, energy stores, rate of energy [...]
Article
Tong Mu, Auteur ;
Pavel S. Tomkovich, Auteur ;
Egor Y. Loktionov, Auteur ;
Evgeny E. Syroechkovskiy, Auteur ;
David S. Wilcove, Auteur
The migration routes of red-necked phalaropes breeding around the Bering Sea are poorly known, despite the fact that the Bering Sea could mark the boundary between the East Palearctic populations that winter in the Pacific Ocean around the East [...]
Article
Patrick Herzog, Auteur ;
Sarah T. Saalfeld, Auteur ;
Hans-Hinrich Kaatz, Auteur ;
Richard B. Lanctot, Auteur
During a 13-yr study near Utqiaġvik (formerly Barrow), Alaska, we documented the prevalence of nest reuse in eight arctic-breeding shorebirds. We evaluated whether nest reuse saved individuals time and energy, enhanced nest survival, or was rela[...]
Article
Simon Potier, Auteur ;
Malicia M. Besnard, Auteur ;
David Schikorski, Auteur ;
Bruno Buatois, Auteur ;
Olivier Duriez, Auteur ;
Marianne Gabirot, Auteur ;
Sarah Leclaire, Auteur ;
Francesco Bonadonna, Auteur
Evidence that bird odour can encode social information that can be used in chemical communication is growing, but is restricted to a few taxonomic groups. Among birds, diurnal raptors (i.e. birds from the Accipitriformes and Falconiformes order)[...]
Article
Ane Eriksen, Auteur ;
Petter Wabakken, Auteur
Circadian rhythms result from adaptations to biotic and abiotic environmental conditions that cycle through the day, such as light, temperature, or temporal overlap between interacting species. At high latitudes, close to or beyond the polar cir[...]
Article
Evan R. Buechley, Auteur ;
Steffen Oppel, Auteur ;
William S. Beatty, Auteur ;
Stoyan C. Nikolov, Auteur ;
Vladimir Dobrev, Auteur ;
Volen Arkumarev, Auteur ;
Victoria Saravia, Auteur ;
Clementine Bougain, Auteur ;
Anastasios Bounas, Auteur ;
Elzbieta Kret, Auteur ;
Theodora Skartsi, Auteur ;
Lale Aktay, Auteur ;
Karen Aghababyan, Auteur ;
Ethan Frehner, Auteur ;
Çagan H. Sekercioglu, Auteur
Migrant birds face a number of threats throughout their annual cycle, including persecution, collision with energy infrastructure, and habitat and climate change. A key challenge for the conservation of migrants is the identification of importan[...]
Article
Z. Al Rubaiee, Auteur ;
H. Al Murayati, Auteur ;
A. P. Møller, Auteur
Migration between breeding sites and winter quarters constitute a major life history strategy in birds. The benefits of such migrations must at least equal the costs for such behavior to evolve and be maintained. We tested whether there was a re[...]
Article
Sara Pardal, Auteur ;
José A. Alves, Auteur ;
Paulo G. Mota, Auteur ;
Jaime A. Ramos, Auteur
Animal signals involved in sexual selection are often indicators of individual quality. The assumption that sexual characters such as breeding plumage may indicate immune state has rarely been tested in free-living migratory birds, particularly [...]
Article
Brian D. Uher‐Koch, Auteur ;
Joshua C. Koch, Auteur ;
Kenneth G. Wright, Auteur ;
Joel A. Schmutz, Auteur
Identifying factors influencing nest survival among sympatric species is important for understanding and managing sources of variation in population dynamics of individual species. Three species of loons nest sympatrically in northern Alaska and[...]
