| Titre : | Journal of Avian Biology 47(5) - SEP 2016 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Hanna N. Stostad, Auteur ;
Silje L. Rekdal, Auteur ;
Oddmund Kleven, Auteur ;
Terje Laskemoen, Auteur ;
Gunnhild Marthinsen, Auteur ;
Arild Johnsen, Auteur ;
Jan T. Lifjeld, Auteur
Sperm morphology is highly diversified among species and at higher taxonomic levels. In birds, there is also increasing evidence of geographical differentiation in sperm traits within species, especially in those with strong sperm competition. G[...]
Article
Anne-Sophie Bonnet-Lebrun, Auteur ;
Licia Calabrese, Auteur ;
Gérard Rocamora, Auteur ;
Andres Lopez-Sepulcre, Auteur
The conservation of elusive species relies on our ability to obtain unbiased estimates of their abundance trends. Many species live or breed in cavities, making it easy to define the search units (the cavity) yet hard to ascertain their occupanc[...]
Article
Danny Caudill, Auteur ;
Michael R. Guttery, Auteur ;
Erin Leone, Auteur ;
Gretchen Caudill, Auteur ;
Terry A. Messmer, Auteur
Research on iteroparous species has shown that reproductive success may increase with age until the onset of senescence. However, from the population perspective, increased reproductive success with age could be a consequence of within-individua[...]
Article
Dominique A. Potvin, Auteur ;
Kaisa Valimaki, Auteur ;
Aleksi Lehikoinen, Auteur
Studies on the impact of climate change on the distributions of bird species in Europe have largely focused on one season at a time, especially concerning summer breeding ranges. We investigated whether migratory bird species show consistent ran[...]
Article
Alexis R. Grinde, Auteur ;
Gerald J. Niemi, Auteur
The rate at which climate is changing in northern latitudes presents a significant threat to bird populations that rely on boreal forests. Alterations in the distributions of trees and other plants as a result of warming will alter the habitat s[...]
Article
Jacqueline M. T. Nguyen, Auteur ;
Simon Y. W. Ho, Auteur
The order Passeriformes comprises the majority of extant avian species. Analyses of molecular data have provided important insights into the evolution of this diverse order. However, molecular estimates of the evolutionary and demographic timesc[...]
Article
Ross A. Crates, Auteur ;
Josh A. Firth, Auteur ;
Damien R. Farine, Auteur ;
Colin J. Garroway, Auteur ;
Lindall R. Kidd, Auteur ;
Lucy M. Aplin, Auteur ;
Reinder Radersma, Auteur ;
Nicole D. Milligan, Auteur ;
Bernhard Voelkl, Auteur ;
Antica Culina, Auteur ;
Brecht L. Verhelst, Auteur ;
Camilla A. Hinde, Auteur ;
Ben C. Sheldon, Auteur
The provision of wild birds with supplementary food has increased substantially over recent decades. While it is assumed that provisioning birds is beneficial, supplementary feeding can have detrimental carry-over' effects on reproductive traits[...]
Article
Vincent Marmillot, Auteur ;
Gilles Gauthier, Auteur ;
Marie-Christine Cadieux, Auteur ;
Pierre Legagneux, Auteur
Environmental constraints are strong in migratory species that breed in the Arctic. In addition to breeding, Anatidae have to renew all their flight feathers during the short arctic summer. We examine how temporal constraints and climate affect [...]
Article
Maternal transfer of androgens in eggs is affected by food supplementation but not by predation risk
Chiara Morosinotto, Auteur ;
Robert L. Thomson, Auteur ;
Suvi Ruuskanen, Auteur ;
Erkki Korpimäki, Auteur ;
Esa Lehikoinen, Auteur ;
Erich Mostl, Auteur ;
Toni Laaksonen, Auteur
Mothers may affect the future success of their offspring by varying allocation to eggs and embryos. Allocation may be adaptive based on the environmental conditions perceived during early breeding. We investigated the effects of food supplementa[...]
Article
Vladimir Remes, Auteur ;
Beata Matysiokova, Auteur
Species differ strongly in their life histories, including the probability of survival. Annual adult survival was investigated extensively in the past, whereas juvenile survival, and especially survival to independence, received much less attent[...]
Article
Kevin A. Wood, Auteur ;
Julia L. Newth, Auteur ;
Geoff M. Hilton, Auteur ;
Bart A. Nolet, Auteur ;
Eileen C. Rees, Auteur
Population declines among migratory Arctic-breeding birds are a growing concern for conservationists. To inform the conservation of these declining populations, we need to understand how demographic rates such as breeding success are influenced [...]
Article
Ning Wang, Auteur ;
Rebecca T. Kimball, Auteur
The evolution of cooperative breeding (CB) in birds has aroused intensive interest for decades, largely due to the paradox that some adults forgo independent breeding to help others. While much effort has been directed at understanding the adapt[...]
Article
Nicolas Guillod, Auteur ;
Raphaël Arlettaz, Auteur ;
Alain Jacot, Auteur
Direct benefits accrued from securing a territory of sufficient quality are important determinants of individual fitness and population persistence. Food supply is one of the main factors of animal territory quality, with spatial and temporal va[...]
Article
J. Rivero-de Aguilar, Auteur ;
H. Westerdahl, Auteur ;
Josue Martinez-De La Puente, Auteur ;
G. Tomas, Auteur ;
J. Martinez, Auteur ;
S. Merino, Auteur
Major histocompatibility complex (MHC) genes are central for the adaptive immune response against parasites. Here, we investigated potential associations among MHC-I alleles and blood parasite infections in a natural breeding population of a pas[...]
Article
William B. Lewis, Auteur ;
Frank R. Moore, Auteur ;
Shiao Wang, Auteur
Although the gut microbiota is known to provide many beneficial functions to animal hosts, such as aiding in digestion, fat metabolism, and immune function, relatively little is known about the gut microbiota of passerines. Gut microbes may have[...]
