| Titre : | Journal of Ornithology 151(2) - APR 2010 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Frédéric Angelier, Auteur ;
Christopher M. Tonra, Auteur ;
Rebecca L. Holberton, Auteur ;
Peter P. Marra, Auteur
Baseline corticosterone levels have been suggested to be an effective tool to assess and monitor the health status of individuals and populations of wild birds. However, measuring baseline corticosterone levels in the field is difficult because [...]
Article
Volker Salewski, Auteur ;
Heiko Schmaljohann, Auteur ;
Felix Liechti, Auteur
The strategy of migrants crossing the Sahara desert has been the subject of debate, but recent evidence from radar studies has confirmed that most passerines use an intermittent migration strategy. The latter has also been suggested from previou[...]
Article
Grzegorz Orlowski, Auteur ;
Zbigniew Kasprzykowski, Auteur ;
Wojciech Dobicki, Auteur ;
Przemyslaw Pokorny, Auteur ;
Ryszard Polechonski, Auteur
Levels of copper, zinc, and arsenic were analyzed in the Rook Corvus frugilegus eggshells from 43 breeding colonies located in different parts of Poland. The average [95% confidence interval (CI)] level of copper was found to be 8.13 (0.64-15.62[...]
Article
Per G. P. Ericson, Auteur ;
Storrs L. Olson, Auteur ;
Martin Irestedt, Auteur ;
Herculano Alvarenga, Auteur ;
Jon Fjeldså, Auteur
The tapaculos (Rhinocryptidae) are tracheophone, suboscine birds restricted to South and Central America. Most tapaculos share a number of internal and external characteristics that have been used to define the family taxonomically. The genera M[...]
Article
Ewa Węgrzyn, Auteur ;
Konrad Leniowski, Auteur
The syllable repertoire size of the great reed warbler (GRW) is known to underlay female preferences. However, its stability over a season-a key factor of this quality-related feature-has never been tested. Similarly, syllable repertoire composi[...]
Article
Mattia Brambilla, Auteur ;
Severino Vitulano, Auteur ;
Andrea Ferri, Auteur ;
Fernando Spina, Auteur ;
Elena Fabbri, Auteur ;
Ettore Randi, Auteur
Diagnosability is the ability to discriminate between similar taxa, including sibling or cryptic taxa. We have developed an explicit test of diagnosability, using the Sylvia cantillans species complex as a model, which compares an identification[...]
Article
Nicolas Martinez, Auteur ;
Lukas Jenni, Auteur ;
Eric Wyss, Auteur ;
Niklaus Zbinden, Auteur
As many other birds breeding in agricultural areas, the common redstart declined strongly in many Central European countries over the last 60 years. The destruction of traditionally managed orchards, an important breeding habitat in Central Euro[...]
Article
Steven Myers, Auteur ;
Geoffrey Brown, Auteur ;
Sonia Kleindorfer, Auteur
Studies of island versus mainland populations have provided insights into processes that shape adaptive divergence (e.g., through selection in allopatric populations) as well as patterns of morphological change. In this study, we compare the mor[...]
Article
Beatriz Blanco-Fontao, Auteur ;
Alberto Fernandez-Gil, Auteur ;
Jose Ramon Obeso, Auteur ;
Mario Quevedo, Auteur
Cantabrian capercaillie Tetrao urogallus cantabricus is a peripheral population with distinctive phenotypic, biogeographic, and genetic characteristics. Hence, the population may also show substantial ecological differentiation associated with i[...]
Article
Scott A. Taylor, Auteur ;
James A. Morris-Pocock, Auteur ;
Zhengxin Sun, Auteur ;
Vicki L. Friesen, Auteur
Ten microsatellite loci were isolated and characterized from Blue-footed (Sula nebouxii) and Peruvian Boobies (S. variegata). The loci were screened in 24 Blue-footed Boobies and 27 Peruvian Boobies: 8 were polymorphic in Blue-footed Boobies wit[...]
Article
Primordial stages in feather evolution including an allegedly new type of protofeather (Xu et al. 2009) as reportedly identified in the Chinese dinosaurs were questioned (Lingham-Soliar in J Ornithol 2009) on identifications based on poor scient[...]
Article
Jan T. Lifjeld, Auteur ;
Gunnhild Marthinsen, Auteur ;
Magne Myklebust, Auteur ;
Deborah A. Dawson, Auteur ;
Arild Johnsen, Auteur
We present photographic and molecular evidence of a wild Marsh Warbler x Sedge Warbler (Acrocephalus palustris x A. schoenobaenus) hybrid that occurred over three breeding seasons (2007-2009) near Trondheim, Central Norway. The bird had the appe[...]
Article
Zihui Zhang, Auteur ;
Xiaoting Zheng, Auteur ;
Guangmei Zheng, Auteur ;
Lianhai Hou, Auteur
A large-sized and almost complete fossil vulture was discovered from the Late Miocene Liushu Formation of Linxia Basin in northwestern China. It is the best-preserved and the most complete fossil vulture yet discovered. The new genus and species[...]
Article
Diane Colombelli-Negrel, Auteur ;
Sonia Kleindorfer, Auteur
Increased predation risk should select for reduced parental activity to decrease the probability of visually hunting predators discovering the nest. Parental activity and conspicuousness are known to increase predation risk. Here, we test for se[...]
Article
Paul D. Haemig, Auteur
A renaissance-era encyclopedia compiled by Fray Bernardino de Sahagun and his research group of elite native scholars from the Royal College of the Holy Cross, Tlatelolco, Valley of Mexico, provides new information on the Slender-billed Grackle [...]
Article
Gerald Mayr, Auteur
Article
Jeff Bowman, Auteur ;
Debbie S. Badzinski, Auteur ;
Ronald J. Brooks, Auteur
We used a 13-year time series of abundance estimates of breeding Northern Saw-whet Owls (Aegolius acadicus), and of small mammals from central Ontario, Canada, to assess the numerical response of the owls to small-mammal prey species. We found t[...]
Article
Dana L. M. Campbell, Auteur ;
Mark E. Hauber, Auteur
Conspecifics during development provide the most reliable sensory cues for species recognition in parental bird species. The Zebra Finch (Taeniopygia guttata) is a sexually dimorphic model species used for investigations of the behavioural cues [...]
Article
Jin-Won Lee, Auteur ;
Hee-Yoon Kim, Auteur ;
Ben J. Hatchwell, Auteur
The amount of food delivered by parents to their chicks is affected by various life history traits as well as environmental and social factors, and this investment ultimately determines the current and future fitness of parents and their offspri[...]
Article
Dagmar Kudernatsch, Auteur ;
Martin Buchmann, Auteur ;
Wolfgang Fiedler, Auteur ;
Gernot Segelbacher, Auteur
We demonstrate the potential of a set of novel microsatellite markers to investigate kin structure and population genetics in the Northern Wheatear (Oenanthe oenanthe). In this study, based on 242 individuals from a population in Rhineland-Palat[...]
Article
Juan Carlos Rando, Auteur ;
Josep Antoni Alcover, Auteur
Insular ecosystems have been subjected to severe hardship during the last millennia. Large numbers of insular bird species have undergone local disappearances and full extinctions, and a high number of insular birds are currently categorised as [...]
Article
Alain Jacot, Auteur ;
Mihai Valcu, Auteur ;
Bart Kempenaers, Auteur
Divorce between breeding seasons, i.e. mate change while the old breeding partner is still alive, has been well-studied in several bird species. It can be viewed either as the result of reproductive decisions of individuals to maximize their own[...]
Article
Heike Ellrich, Auteur ;
Volker Salewski, Auteur ;
Wolfgang Fiedler, Auteur
Sex determination of birds is important for many ecological studies but is often difficult in species with monomorphic plumage. Morphology often provides a possibility for sex determination, but the characters need to be verified. We tested whet[...]
Article
Jonathan B. Cohen, Auteur ;
Sarah M. Karpanty, Auteur ;
James D. Fraser, Auteur ;
Barry R. Truitt, Auteur
A population decline of the western Atlantic red knot (Calidris canutus rufa) has been linked to food limitation during the spring migratory stopover in Delaware Bay, USA. The stopover ecology at potential alternative sites has received little a[...]
Article
Thorsten Johannes Skovbjerg Balsby, Auteur ;
Poul Hansen, Auteur
Song repertoires are often important determining factors in sexual selection. In several species, older males have larger repertoires than 1-year-old males. The development of large song repertoires by an individual is, however, poorly understoo[...]
Article
Steven J. Portugal, Auteur ;
Rhian Isaac, Auteur ;
Kate L. Quinton, Auteur ;
S. James Reynolds, Auteur
Many different behavioural changes have been observed in wild waterfowl during the flightless stage of wing moult with birds frequently becoming inactive and reducing time spent foraging. Increased predation risk, elevated energetic demands of f[...]
Article
Andreas Plischke, Auteur ;
Petra Quillfeldt, Auteur ;
Thomas Lubjuhn, Auteur ;
Santiago Merino, Auteur ;
Juan F. Masello, Auteur
Wild birds exposed to stressors may modulate their investment in immunity. We studied the leucocytes of breeding burrowing parrots (Cyanoliseus patagonus) in Patagonia during five breeding seasons, during which global climate events such as a st[...]
Article
Jana Kotzerka, Auteur ;
Stefan Garthe, Auteur ;
Scott A. Hatch, Auteur
The Black-legged Kittiwake Rissa tridactyla is the most abundant gull species in the world, but some populations have declined in recent years, apparently due to food shortage. Kittiwakes are surface feeders and thus can compensate for low food [...]
Article
Magdalena Remisiewicz, Auteur ;
Anthony J. Tree, Auteur ;
Les G. Underhill, Auteur ;
P. Barry Taylor, Auteur
Immature migrant waders have more complex patterns of primary moult than adults, but these have been described only fragmentarily. The Wood Sandpiper Tringa glareola breeds in the taiga region of the Palearctic and part of the population migrate[...]
Article
Nele Markones, Auteur ;
Volker Dierschke, Auteur ;
Stefan Garthe, Auteur
We assessed seasonal differences in at-sea activity of Lesser Black-backed Gulls Larus fuscus, Black-legged Kittiwakes Rissa tridactyla and Common Guillemots Uria aalge in the south-eastern North Sea. The three species correspond to different ec[...]
Article
Vertebrate mothers transmit antibodies to offspring that provide humoral immunity early in life. The duration of protection provided by maternal antibodies varies considerably among species and has not been widely examined in birds. Determinatio[...]
Article
Xiaoping Zhou, Auteur ;
Wenzhen Fang, Auteur ;
Xiaolin Chen, Auteur
The genetic diversity and population structure of the vulnerable Chinese Egret (Egretta eulophotes) were surveyed in the present study from three archipelagoes that cover the most southerly to the very northerly parts of the Chinese distribution[...]
Article
Bernard Cadiou, Auteur ;
Frederic Bioret, Auteur ;
Delphine Chenesseau, Auteur
Mainly through trampling and manuring, ground-nesting seabirds induced significant habitat changes both on vegetation cover and soil in one of the largest French colonies of European Storm Petrel Hydrobates pelagicus, Habitat deterioration led t[...]
