| Titre : | Journal of Avian Biology 45(2) - MAR 2014 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Kyle A. Cutting, Auteur ;
Keith A. Hobson, Auteur ;
Jay J. Rotella, Auteur ;
Jeffrey M. Warren, Auteur ;
John Y. Takekawa, Auteur ;
Susan E. W. De la Cruz, Auteur ;
Michael Parker, Auteur
Studies of how birds mobilize nutrients to eggs have traditionally considered a continuum of possible allocation strategies ranging from income breeding (rely on food sources found on the breeding grounds) to capital breeding (rely on body reser[...]
Article
Steffen Hahn, Auteur ;
Dimitar Dimitrov, Auteur ;
Saskia Rehse, Auteur ;
Elizabeth Yohannes, Auteur ;
Lukas Jenni, Auteur
Detailed knowledge about claw formation and growth rate is a prerequisite for the interpretation of avian claw stable isotopes, as is commonly done with feather stable isotopes to e.g. infer habitat use, dietary specialisations, and spatial occu[...]
Article
Loic A. Hardouin, Auteur ;
Richard Thompson, Auteur ;
Martyn Stenning, Auteur ;
David Reby, Auteur
The hypothesis that anatomical or physiological factors can constrain the production of vocalizations is supported by an increasing number of examples from a range of taxa, where acoustic variation is related to sex, body-size or condition. In t[...]
Article
E. Vatka, Auteur ;
K. Kangas, Auteur ;
M. Orell, Auteur ;
S. Lampila, Auteur ;
A. Nikula, Auteur ;
V. Nivala, Auteur
Anthropogenic habitat loss and fragmentation affect populations worldwide. For example, many bird populations of boreal forests have declined due to intensive forestry. To target conservation actions for such species, determining the key factors[...]
Article
Rascha J. M. Nuijten, Auteur ;
Andrea Kolzsch, Auteur ;
Jan A. van Gils, Auteur ;
Bethany J. Hoye, Auteur ;
Kees Oosterbeek, Auteur ;
Peter P. de Vries, Auteur ;
Marcel Klaassen, Auteur ;
Bart A. Nolet, Auteur
In the vast majority of migratory bird species studied so far, spring migration has been found to proceed faster than autumn migration. In spring, selection pressures for rapid migration are purportedly higher, and migratory conditions such as f[...]
Article
Margje E. de Jong, Auteur ;
Rienk W. Fokkema, Auteur ;
Richard Ubels, Auteur ;
Marco Van Der Velde, Auteur ;
Joost M. Tinbergen, Auteur
Allocation of resources between the life history traits reproduction and parasite defence are expected because both are energetically costly. Experimental evidence for such allocation has been found in short-term effects of reproduction on paras[...]
Article
Pedro Rodrigues, Auteur ;
Ricardo Jorge Lopes, Auteur ;
Sandra Reis, Auteur ;
Roberto Resendes, Auteur ;
Jaime Albino Ramos, Auteur ;
Regina Tristao da Cunha, Auteur
We present new insights into the genetic diversity and phylogeography of the common chaffinch Fringilla coelebs from the Azores, based on sequences of mitochondrial and nuclear genes from 44 individuals and an outgroup/comparison of 44 birds fro[...]
Article
Joseph D. Manthey, Auteur ;
Garth M. Spellman, Auteur
The properties of sex chromosomes, including patterns of inheritance, reduced levels of recombination, and hemizygosity in one of the sexes may result in the faster fixation of new mutations via drift and natural selection. Due to these patterns[...]
Article
Frank E. Rheindt, Auteur ;
Les Christidis, Auteur ;
Sylvia Kuhn, Auteur ;
Siwo de Kloet, Auteur ;
Janette A. Norman, Auteur ;
Andrew Fidler, Auteur
The Strigopidae are an ancient parrot (Psittaciformes) family consisting of three extant species placed in two genera (Nestor, Strigops) and restricted to New Zealand. Their evolutionary history is clouded because the timing of divergence events[...]
Article
Andrea Gehrold, Auteur ;
Hans-Guenther Bauer, Auteur ;
Wolfgang Fiedler, Auteur ;
Martin Wikelski, Auteur
The annual migration cycle of waterbirds often involves several distinct movement stages, for example within-winter movements or the moult migration during summer, which require a high degree of individual flexibility in migration direction. Her[...]
Article
Hendrik Reers, Auteur ;
Marty L. Leonard, Auteur ;
Andrew G. Horn, Auteur ;
Alain Jacot, Auteur
Acoustic signatures are common components of avian vocalizations and are important for the recognition of individuals and groups. The proximate mechanisms by which these signatures develop are poorly understood, however. The development of acous[...]
