| Titre : | Journal of Ornithology 148(1) - JAN 2007 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Yves Hingrat, Auteur ;
Michel Saint Jalme, Auteur ;
Frederic Ysnel, Auteur ;
Eric Le Nuz, Auteur ;
Frederic Lacroix, Auteur
Studies of the movements and home-ranges of houbara bustards (Chlamydotis undulata undulata) showed sexual and seasonal differences in the use of space, with a polygynous mating system similar to an,exploded-lek' or a 'resource-defence-polygyny'[...]
Article
A short synopsis of the taxa included in Ameghinornithidae is presented. The rather poor fossil record suggests that these birds were (nearly?) flightless, similar to small phorusrhacids.
Article
Volker Salewski, Auteur ;
Marco Thoma, Auteur ;
Michael Schaub, Auteur
Analyses of stopover parameters of migrating birds with Cormack-Jolly-Seber (CJS) capture-recapture models often suffer from low precision due to sparse data sets. Low recapture rates result in low power to detect violations of the underlying as[...]
Article
S. C. Wiersch, Auteur ;
T. Lubjuhn, Auteur ;
W. A. Maier, Auteur ;
H. Kampen, Auteur
Blood samples from 94 coal tits (Parus ater), 56 great tits (Parus major) and 219 pied flycatchers (Ficedula hypoleuca), caught between 1993 and 2002 at two localities in Lower Saxony, Germany, were examined for haemosporidian infection by paras[...]
Article
L. Scott Johnson, Auteur ;
Jessica L. Brubaker, Auteur ;
Emilene Ostlind, Auteur ;
Susan L. Balenger, Auteur
Male investment of time and energy in caring for offspring varies substantially both between and within bird species. Explaining this variation is of long-standing interest to ornithologists. One factor that may affect male care is breeding site[...]
Article
Hans Jakober, Auteur ;
Wolfgang Stauber, Auteur ;
Franz Bairlein, Auteur ;
Maren Voss, Auteur
We investigated the stable isotope signatures (delta(15)N and delta(13)C) of greater feather covers of male and female Red-backed Shrikes (Lanius collurio) of a southern German population. Male and female birds did not differ in their isotope si[...]
Article
Angelika Poesel, Auteur ;
Torben Dabelsteen, Auteur ;
Simon Boel Pedersen, Auteur
Communication among animals often comprises several signallers and receivers within the signal's transmission range. In such communication networks, individuals can extract information about differences in relative performance of conspecifics by[...]
Article
Verena Saladin, Auteur ;
Mathias Ritschard, Auteur ;
Alexandre Roulin, Auteur ;
Pierre Bize, Auteur ;
Heinz Richner, Auteur
We have investigated genetic parentage in a Swiss population of tawny owls (Strix aluco). To this end, we performed genetic analysis for six polymorphic loci of 49 avian microsatellite loci tested for cross-species amplification. We found one ex[...]
Article
Gerald Mayr, Auteur
New specimens of the early Oligocene (32 million years ago) stem group hummingbird Eurotrochilus inexpectatus Mayr, 2004, are described from the type locality Frauenweiler in Southern Germany. One of these is the second slab of the holotype, who[...]
Article
Anton Krištín, Auteur ;
Francisco Valera, Auteur ;
Christine Hoi, Auteur ;
Herhert Hoi, Auteur
In many bird species, males display colourful, usually carotenoid or structurally based plumage ornaments. On the other hand, there are many bird species and entire avian genera that are achromatic, i.e. with predominantly white, grey and black [...]
Article
Magnus Svensson, Auteur ;
Pekka T. Rintamaki, Auteur ;
Tim R. Birkhead, Auteur ;
Simon C. Griffith, Auteur ;
Arne Lundberg, Auteur
During the past 30 years, many species of farmland birds have declined dramatically in numbers in Northern Europe, a trend coinciding with a tremendous intensification of agriculture, although the exact causes of these declines remain unclear. O[...]
Article
Luis Cadahia, Auteur ;
Juan J. Negro, Auteur ;
Vicente Urios, Auteur
This study is an initial survey of the genetic diversity and population structure of the endangered Bonelli's Eagle (Hieraaetus fasciatus) in SW Europe (Iberia) and NW Africa, two locations where the species has undergone a severe decrease in nu[...]
Article
Raivo Mand, Auteur ;
Vallo Tilgar, Auteur ;
Priit Kilgas, Auteur ;
Marko Magi, Auteur
It has been suggested that a bird's clutch size is not limited by the amount of resources available at the time of laying but that differences in the availability of food for nestlings is the ultimate underlying factor determining spatio-tempora[...]
Article
Christian Dietzen, Auteur ;
Clemens Hackenberg, Auteur ;
Karl-Heinz Heyne, Auteur ;
Hedwig Sauer-Guerth, Auteur ;
Heidi Staudter, Auteur ;
Michael Wink, Auteur
During May and June 2003, a mixed breeding pair consisting of a male western Bonelli's warbler (Phylloscopus bonelli) and a female wood warbler (P. sibilatrix) successfully raised six young in a broad-leafed forest near Junkerath, western German[...]
Article
Carla Pimentel, Auteur ;
Jan-Ake Nilsson, Auteur
The breeding biology of great tits (Parus major) was studied in two forests of maritime pine (Pinus pinaster) on the west coast of Portugal, 200 km apart: Leiria (north) and Apostica (south). These two forests are located in a transition zone be[...]
Article
Gernot Segelbacher, Auteur ;
Per Wegge, Auteur ;
Andrey V. Sivkov, Auteur ;
Jacob Höglund, Auteur
We quantified the genetic structure among 58 capercaillie (Tetrao urogallus) from three closely spaced leks in boreal Russia using ten microsatellite loci. We did not find significant structuring with respect to lek membership in an overall anal[...]
Article
Cezary Mitrus, Auteur
Intraspecific variation in the arrival time of migratory birds to breeding grounds is common. Although this phenomenon has been explained in various ways, the condition-dependency of arrival is often evoked. I analyzed the arrival time of male r[...]
Article
Jean-Marc PAILLISSON, Auteur ;
Sebastien Reeber, Auteur ;
Alexandre Carpentier, Auteur ;
Loïc Marion, Auteur
It is generally accepted that breeding terns are sensitive to food supply and that their reproductive effort could be substantially affected by the availability and access to resources. In this study we examined reproductive parameters in the wh[...]
