| Titre : | Journal of Avian Biology 47(1) - JAN 2016 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Tomasz Wesolowski, Auteur ;
Marta Cholewa, Auteur ;
Grzegorz Hebda, Auteur ;
Marta Maziarz, Auteur ;
Patryk Rowinski, Auteur
Numerous bird species have advanced their breeding seasons in response to climate warming. These changes were mostly brought about by phenotypic plasticity, i.e. flexible reactions of individual birds, rather than by microevolutionary change. Kn[...]
Article
Miriam Ben-Hamo, Auteur ;
Darren John Burns, Auteur ;
Ulf Bauchinger, Auteur ;
Shomen Mukherjee, Auteur ;
Keren Embar, Auteur ;
Berry Pinshow, Auteur
Birds lose feathers, whether during molt or by accident, and replace them by processes that are energetically demanding. We hypothesized that house sparrows Passer domesticus biblicus use behavioral means to save energy when feathers are lost, a[...]
Article
J. Ouwehand, Auteur ;
M. P. Ahola, Auteur ;
A. N. M. A. Ausems, Auteur ;
E. S. Bridge, Auteur ;
M. Burgess, Auteur ;
S. Hahn, Auteur ;
C. M. Hewson, Auteur ;
R. H. G. Klaassen, Auteur ;
T. Laaksonen, Auteur ;
H. M. Lampe, Auteur ;
W. Velmala, Auteur ;
C. Both, Auteur
Understanding what drives or prevents long-distance migrants to respond to environmental change requires basic knowledge about the wintering and breeding grounds, and the timing of movements between them. Both strong and weak migratory connectiv[...]
Article
Kirandeep K. Dhami, Auteur ;
Leo Joseph, Auteur ;
David A. Roshier, Auteur ;
Jeffrey L. Peters, Auteur
Sex chromosomes potentially have an important role in speciation and often have elevated differentiation between closely related species. In birds, traits associated with male plumage, female mate preference, and hybrid fitness have been linked [...]
Article
Melissa L. Grunst, Auteur ;
John T. Rotenberry, Auteur ;
Andrea S. Grunst, Auteur
Adult-directed predation risk elevates costs of parental care, and may modify relationships between sexually selected ornaments and parental effort by accentuating the tradeoff between survival and parental investment. We assessed multiple hypot[...]
Article
Antoine Stier, Auteur ;
Anne Delestrade, Auteur ;
Pierre Bize, Auteur ;
Sandrine Zahn, Auteur ;
Francois Criscuolo, Auteur ;
Sylvie Massemin, Auteur
Telomeres are specialized non-coding DNA sequences that cap the end of chromosomes and protect genome integrity. Because telomeres shorten during development and their length at maturity is often associated with survival, one hypothesis is that [...]
Article
Calibrating the molecular clock beyond cytochrome b: assessing the evolutionary rate of COI in birds
Pablo D. Lavinia, Auteur ;
Kevin C. R. Kerr, Auteur ;
Pablo L. Tubaro, Auteur ;
Paul D. N. Hebert, Auteur ;
Dario A. Lijtmaer, Auteur
Estimating the age of species or their component lineages based on sequence data is crucial for many studies in avian evolutionary biology. Although calibrations of the molecular clock in birds have been performed almost exclusively using cytoch[...]
Article
Christie A. Macdonald, Auteur ;
Emily A. McKinnon, Auteur ;
H. Grant Gilchrist, Auteur ;
Oliver P. Love, Auteur
Sex biases in distributions of migratory birds during the non-breeding season are widespread; however, the proximate mechanisms contributing to broad-scale sex-ratio variation are not well understood. We analyzed a long-term winter-banding datas[...]
Article
David N. Bonter, Auteur ;
Michelle C. Moglia, Auteur ;
Luke E. DeFisher, Auteur
Skewed adult sex ratios sometimes occur in populations of free-living animals yet the proximate mechanisms, timing of sex-biases, and the selective agents contributing to skew remain a source of debate with contradictory evidence from different [...]
Article
Yosef Kiat, Auteur ;
Ido Izhaki, Auteur
Juveniles of several passerine species renew all of their fresh juvenile feathers immediately after fledging (complete post-juvenile moult), in contrast to the majority, which perform a partial post-juvenile moult. To understand the adaptive rol[...]
Article
Katja Koskenpato, Auteur ;
Kari Ahola, Auteur ;
Teuvo Karstinen, Auteur ;
Patrik Karell, Auteur
In colour polymorphic species morphs are considered to be adaptations to different environments, where they have evolved and are maintained because of their differential sensitivity to the environment. In cold environments the plumage insulation[...]
Article
Rachel J. Sturge, Auteur ;
Kevin E. Omland, Auteur ;
J. Jordan Price, Auteur ;
Bernard Lohr, Auteur
Birdsong has important functions in attracting and competing for mates, and song characteristics are thought to diverge rapidly during the process of speciation. In contrast, other avian vocalizations that may have non-reproductive functions, su[...]
Article
Suvi Ruuskanen, Auteur ;
Veerle M. Darras, Auteur ;
Bonnie de Vries, Auteur ;
Marcel E. Visser, Auteur ;
Ton G. G. Groothuis, Auteur
In birds, mothers can affect their offspring's phenotype and thereby survival via egg composition. It is not well known to what extent and time-scales environmental variation in resource availability, either via resource constrains or adaptive a[...]
Article
J. Amouret, Auteur ;
D. A. G. Barisas, Auteur ;
G. T. Hallgrimsson, Auteur ;
R. W. Summers, Auteur ;
S. Palsson, Auteur
The Icelandic subspecies of Eurasian wren Troglodytes troglodytes islandicus has been described as a large wren which is sedentary on the island. It is one member of a large passerine complex which is widely distributed over the Holarctic except[...]
Article
Melina Barrionuevo, Auteur ;
Esteban Frere, Auteur
In birds, the adaptive significance of hatching asynchrony has been under debate for many years and the parental effects on hatching asynchrony have been largely assumed but not often tested. Some authors suggest that hatching asynchrony depends[...]
