| Titre : | Ibis : The International Journal of Avian Science 150(3) - JUL 2008 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Tycho Anker-Nilssen, Auteur ;
Oddmund Kleven, Auteur ;
Tomas Aarvak, Auteur ;
Jan T. Lifjeld, Auteur
Article
Richard Inger, Auteur ;
Stuart Bearhop, Auteur
In the past 20 years the use of stable isotope analysis has become increasingly common in ecological studies. In fact, in some instances these techniques have yielded remarkable insights into the foraging preferences and migrations of birds. Des[...]
Article
We tested whether spatial and annual patterns of occurrence of out-of-range Great White Pelecanus onocrotalus, Dalmatian Pelecanus crispus and Pink-backed Pelicans Pelecanus rufescens recorded in Europe between 1980 and 2004 supported a natural [...]
Article
Jiri Reif, Auteur ;
Peter Vorisek, Auteur ;
Karel Šťastný, Auteur ;
Vladimir Bejcek, Auteur ;
Jiri Petr, Auteur
The relationship between agricultural intensification and a decline in farmland bird populations is well documented in Europe, but the results are mostly based on data from the western part of the continent. In the former socialist eastern and c[...]
Article
Gavin M. Siriwardena, Auteur ;
Neil A. Calbrade, Auteur ;
Juliet A. Vickery, Auteur
Poor overwinter survival caused by low food availability represents the most likely mechanism behind the decline, and failure to recover, of many farmland passerine populations. Management to enhance food resources is now in place via agri-envir[...]
Article
Radovan Vaclav, Auteur ;
Sara Sanchez, Auteur
Latitude, a surrogate of climatic conditions, is commonly used in the examination of life-history variation. However, the climatic mechanisms underlying latitudinal life-history variation have only rarely been tested. Here, we test whether the n[...]
Article
Ake Berg, Auteur
Many granivorous birds have shown severe population declines in Europe during recent decades. The aim of the present study was to analyse habitat preferences and reproductive success of one such species, the Ortolan Bunting Emberiza hortulana, i[...]
Article
Esteban Frere, Auteur ;
Flavio Quintana, Auteur ;
Patricia Gandini, Auteur ;
Rory P. Wilson, Auteur
Radiotelemetry was used to assess the distribution and diving behaviour of Rock Shags Phalacrocorax magellanicus and Red-legged Cormorants Phalacrocorax gaimardi breeding in sympatry, and Rock Shags breeding in isolation. When breeding in sympat[...]
Article
Toby Heath Galligan, Auteur ;
Sonia Kleindorfer, Auteur
The nest of the Yellow-rumped Thornbill Acanthiza chrysorrhoa (endemic to Australia) consists of a lower domed nest where the young are cared for and an upper cup-shaped structure, referred to as the false nest. Numerous hypotheses have been pro[...]
Article
Oriane W. Taft, Auteur ;
Peter M. Sanzenbacher, Auteur ;
Susan M. Haig, Auteur
Few studies have assessed how the dynamics of wetland bird movements relate to changing resource availability, particularly at more than one spatial scale. Within western Oregon's Williamette Valley, we examined winter resident Dunlin Calidris a[...]
Article
Bryce C. Lake, Auteur ;
Joel A. Schmutz, Auteur ;
Mark S. Lindberg, Auteur ;
Craig R. Ely, Auteur ;
William D. Eldridge, Auteur ;
Fred J. Broerman, Auteur
We studied body mass of prefledging Emperor Geese Chen canagica at three locations across the Yukon-Kuskokwim Delta, Alaska, during 1990-2004 to investigate whether large-scale variation in body mass was related to interspecific competition for [...]
Article
Guillermo Fernández, Auteur ;
David B. Lank, Auteur
Individuals within a population may vary considerably in the way they exploit available food resources. If the sexes differ in the size of their feeding apparatus, there can be differences in foraging behaviour and habitat use, hence one sex may[...]
Article
T. R. Birkhead, Auteur ;
J. Hall, Auteur ;
E. Schut, Auteur ;
N. Hemmings, Auteur
Unhatched eggs are a common phenomenon in birds and are often referred to as being 'infertile', which (confusingly) can mean at least two things: (1) that the ovum has not been fertilized or (2) that the embryo has died during development. These[...]
Article
Joern P. W. Scharlemann, Auteur
Article
Miriam J. Brandt, Auteur ;
Will Cresswell, Auteur
Knowledge of a species' movement behaviour and habitat choice is a prerequisite for assessing its ecological requirements to plan successful conservation strategies. Little is known about these factors in the Rock Firefinch, a recently described[...]
Article
Martim Melo, Auteur ;
Jerome Fuchs, Auteur
Article
Graham R. Martin, Auteur ;
Craig R. White, Auteur ;
Patrick J. Butler, Auteur
Predatory diving birds, such as cormorants (Phalacrocoracidae), have been generally regarded as visually guided pursuit foragers. However, due to their poor visual resolution underwater, it has recently been hypothesized that Great Cormorants do[...]
Article
Mattia Brambilla, Auteur ;
Franca Guidali, Auteur ;
Irene Negri, Auteur
Article
David Roshier, Auteur ;
Martin Asmus, Auteur ;
Marcel Klaassen, Auteur
In contrast to northern temperate environments, where day length and temperature changes are obvious proximate cues for movement to resource-rich breeding habitats, the cues for movement used by birds in an often resource-poor, stochastic enviro[...]
Article
John H. Rappole, Auteur ;
Pamela C. Rasmussen, Auteur ;
Thein Aung, Auteur ;
Christopher M. Milensky, Auteur ;
Swen C. Renner, Auteur
Article
T. C. Guilford, Auteur ;
J. Meade, Auteur ;
R. Freeman, Auteur ;
D. Biro, Auteur ;
T. Evans, Auteur ;
F. Bonadonna, Auteur ;
D. Boyle, Auteur ;
S. Roberts, Auteur ;
C. M. Perrins, Auteur
We report the first successful use of miniature Global Positioning System loggers to track the ocean-going behaviour of a c. 400 g seabird, the Manx Shearwater Puffinus puffinus. Breeding birds were tracked over three field seasons during the in[...]
