| Titre : | Journal of Ornithology 152(3) - JUL 2011 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Steven- Kragten, Auteur
Dutch farmland bird populations are in steep decline as a result of agricultural intensification. The Yellow Wagtail (Motacilla flava flava) is one of those species, but its decrease has mainly occurred in grasslands, with its population in arab[...]
Article
Yu Xu, Auteur ;
Nan Yang, Auteur ;
Kai Zhang, Auteur ;
Bisong Yue, Auteur ;
Jianghong Ran, Auteur
Cooperative breeding is rarely found in the Galliformes. We report a case in Buff-throated Partridge Tetraophasis szechenyii, a sexually monochromatic Galliform species endemic to western China. A total of 68 groups were detected in the 2006-200[...]
Article
Jean-Yves Barnagaud, Auteur ;
Pierre Andre Crochet, Auteur ;
Yann Magnani, Auteur ;
Ariane Bernard Laurent, Auteur ;
Emmanuel Ménoni, Auteur ;
Claude Novoa, Auteur ;
Olivier Gimenez, Auteur
Deciphering the effects of climatic conditions on population dynamics is of major importance in understanding how organisms are likely to be affected by climate changes. Using data from broad-scale annual censuses between 1990 and 2007, we show [...]
Article
Laura Kvist, Auteur ;
Suvi Ponnikas, Auteur ;
Eduardo J. Belda, Auteur ;
Ignacio Encabo, Auteur ;
Emilio Martinez, Auteur ;
Alejandro Onrubia, Auteur ;
Jose M. Hernandez, Auteur ;
Pablo Vera, Auteur ;
Julio M. Neto, Auteur ;
Juan S. Monrós, Auteur
In the Iberian Peninsula, populations of two subspecies of the Reed Bunting Emberiza schoeniclus have become increasingly fragmented during the last decades when suitable habitats have been lost and/or the populations have gone extinct. Presentl[...]
Article
Fossils reveal an early Miocene presence of the aberrant gruiform Aves: Aptornithidae in New Zealand
Trevor H. Worthy, Auteur ;
Alan J. D. Tennyson, Auteur ;
R. Paul Scofield, Auteur
A member of the New Zealand endemic family (Aves: Aptornithidae) is described from the Early Miocene St Bathans Fauna of Central Otago, South Island, New Zealand. The new species, based on two thoracic vertebrae, is provisionally referred to the[...]
Article
Claudia Schuetz, Auteur ;
Christian H. Schulze, Auteur
This study tested for effects of flock size and other potentially important variables (location, vegetation cover, wind force, cloud cover, date, time of day, feeding habitat, number of other waders and peck rate) on the vigilance level of forag[...]
Article
D. Y. Okubamichael, Auteur ;
M. Z. Rasheed, Auteur ;
M. E. Griffiths, Auteur ;
D. Ward, Auteur
We documented avian consumers of the mistletoe Agelanthus natalitius in the field and quantified their effects on seed germination in captive studies. Seven bird species were frequently observed to feed on mistletoe fruits in the field, namely C[...]
Article
Steven J. Portugal, Auteur ;
Matthieu Guillemain, Auteur
Increased vigilance in male animals has been attributed to mate guarding (male investment hypothesis), to secondary sexual characteristics increasing predation risk (male constraint hypothesis) or for the benefit to the female (female benefits h[...]
Article
Nana Hesler, Auteur ;
Roger Mundry, Auteur ;
Torben Dabelsteen, Auteur
Bird song is thought to have a function in both inter- and intra-sexual contexts with song complexity serving as an honest signal of male quality. Theory predicts that males use repertoire sizes to estimate rivals' fighting ability. Here we test[...]
Article
The song of the Cinnamon-breasted Bunting, Emberiza tahapisi, in the Bamenda Highlands (NW Cameroon)
In this study, I describe the song of the Cinnamon-breasted Bunting (Emberiza tahapisi)-a common and widespread species in sub-Saharan Africa. Several aspects of song behaviour were addressed based on recordings of 58 males in the Bamenda Highla[...]
Article
Ruben Liminana, Auteur ;
Beatriz E. Arroyo, Auteur ;
Martin Surroca, Auteur ;
Vicente Urios, Auteur ;
Abilio Reig-Ferrer, Auteur
We examined distribution and breeding success of semi-colonial Montagu's Harriers (Circus pygargus) in relation to habitat in Castelln province (eastern Spain). Breeding areas used by harriers at a 1-km(2) scale were characterised by having inte[...]
Article
Scott A. Taylor, Auteur ;
Carlos B. Zavalaga, Auteur ;
Guillermo Luna-Jorquera, Auteur ;
Alejandro Simeone, Auteur ;
David J. Anderson, Auteur ;
Vicki L. Friesen, Auteur
Marine ecosystems and their inhabitants are increasingly under threat from climate change, competition with humans for resources, and pollution. Species that are endemic to particular currents or regions of the world's oceans have the potential [...]
Article
Paulo Catry, Auteur ;
Jose Pedro Granadeiro, Auteur ;
Jaime Ramos, Auteur ;
Richard A. Phillips, Auteur ;
Paulo Oliveira, Auteur
It has long been known that birds change their behaviour, reproductive performance and survival as they mature, including in the first few years after recruitment into the breeding population. However, and contrasting with the description of pat[...]
Article
Angela R. Freeman, Auteur ;
James F. Hare, Auteur
Article
Cécile Mourer-Chauviré, Auteur ;
Martin Pickford, Auteur ;
Brigitte Senut, Auteur
An almost complete tarsometatarsus from the middle Eocene locality of Silica South, Sperrgebiet, Namibia, is attributed to the order Galliformes. This is the earliest record of the order in Africa. It belongs to a stem group galliform and differ[...]
Article
Michael A. Patten, Auteur ;
Dan L. Reinking, Auteur ;
Donald H. Wolfe, Auteur
Numerous hypotheses have been developed to explain how a brood parasite selects a host nest into which it lays its eggs. Most hypotheses address various aspects of nest placement. We used an extensive dataset to tease apart the relative strength[...]
Article
Markus U. Ehrengruber, Auteur ;
Urs N. Glutz von Blotzheim, Auteur
Article
Jia-Ni Chen, Auteur ;
Nai-Fa Liu, Auteur ;
Chuan Yan, Auteur ;
Bei An, Auteur
Natural selection should favor flexibility in nest site selection when environmental variability influences individual fitness. Birds can modify their reproductive behaviors in response to predation cues. Similar to predation risk, human disturb[...]
Article
Shuping Zhang, Auteur ;
Fumin Lei, Auteur ;
Shenglin Liu, Auteur ;
Dongming Li, Auteur ;
Cong Chen, Auteur ;
Peizhe Wang, Auteur
Rapid urbanization is a major anthropogenic pressure on bird species that rely on vegetation for food and shelter. Since the baseline corticosterone concentration (BCC) in some bird species has been found to increase slightly in response to envi[...]
Article
Rita Hargitai, Auteur ;
Rafael Mateo, Auteur ;
Janos Toeroek, Auteur
Avian eggshell structure may have important consequences for embryonic growth and development, but relatively little is known about the factors responsible for variation in eggshell characteristics of wild birds. In this paper, we explored poten[...]
Article
Sajeda Begum, Auteur ;
Arne Moksnes, Auteur ;
Eivin Roskaft, Auteur ;
Bard G. Stokke, Auteur
Host nest use by the brood parasitic Asian Koel (Eudynamys scolopacea) has not previously been studied in detail. Here, we investigated factors that may explain patterns of nest use among three commonly used host species of the Asian Koel in Ban[...]
Article
A recent development in the identification of feathers in fossils by means of melanosomes was used to suggest that structures observed in an SEM of a filament in the basal theropod dinosaur, Sinosauropteryx, were phaeomelanosomes and that they r[...]
Article
Daniel W. Coulton, Auteur ;
Robert G. Clark, Auteur ;
Leonard I. Wassenaar, Auteur ;
David W. Howerter, Auteur ;
Michael G. Anderson, Auteur
Conspecific avoidance and attraction hypotheses have been proposed to explain patterns of animal spacing behavior and have been frequently used to explain habitat selection by dispersers. In birds, tests of these hypotheses have been limited to [...]
Article
Marina Magana, Auteur ;
Juan Carlos Alonso, Auteur ;
Javier A. Alonso, Auteur ;
Carlos A. Martín, Auteur ;
Beatriz Martín, Auteur ;
Carlos Palacín, Auteur
We investigated the spatial arrangement of Great Bustard Otis tarda nests relative to leks in 55 females captured at four lek sites and radio-tracked through 1-6 years in a protected area in central Spain. Although females showed a tendency to n[...]
Article
Nina Dehnhard, Auteur ;
Maud Poisbleau, Auteur ;
Laurent Demongin, Auteur ;
Petra Quillfeldt, Auteur
Southern Rockhopper Penguins (Eudyptes chrysocome chrysocome) have a strongly synchronised breeding cycle with a fixed pattern of nest attendance for males and females. We studied leucocyte profiles and the development of granulocyte/lymphocyte [...]
Article
Motti Charter, Auteur ;
Ido Izhaki, Auteur ;
Yossi Leshem, Auteur
Predation has been suggested as an important factor affecting the success of breeding birds. Various studies have found that particular bird species either avoid or choose to breed in the proximity of predator nests. Here, we investigated whethe[...]
Article
Anna Dubiec, Auteur
Nest desertion behaviour in relation to body condition and timing of breeding was studied in Great Tit (Parus major) females during two breeding seasons. Desertion, most likely unintentionally provoked by catching females during the incubation p[...]
Article
Tim Schmoll, Auteur ;
Oddmund Kleven, Auteur
The evolutionary forces that shape and maintain variation in sperm traits across species in birds have recently attracted increased attention. Much less is known about the patterns, the causes and the consequences of variation in sperm traits wi[...]
Article
Geoffrey A. Manley, Auteur ;
Manfred Lieser, Auteur ;
Peter Berthold, Auteur
Article
Akira Chiba, Auteur ;
Ryuhei Honma, Auteur
We report here on the prevalence, morphological and behavioral traits, and gonadal condition of anomalous Northern Pintail (Anas acuta) females found at the Hyo-ko Waterfowl Park in Niigata, Japan. A total of 15 anomalous birds were banded and e[...]
Article
Philippe Chouteau, Auteur ;
Miguel Pedrono, Auteur
Article
Anthony D. Fox, Auteur ;
Roy King, Auteur
We assessed the contribution of endogenous fat stores to meeting energetic needs during the flightless moult period in Pochard and Tufted Duck by regressing mass on the progression of wing moult, as measured by primary length. Pochard lost betwe[...]
Article
Pieternella C. Luttikhuizen, Auteur ;
Anneke Bol, Auteur ;
Harry Witte, Auteur ;
Judith van Bleijswijk, Auteur ;
Oliver Haddrath, Auteur ;
Allan J. Baker, Auteur ;
Theunis Piersma, Auteur ;
Jeroen Reneerkens, Auteur
We isolated and tested six novel microsatellite loci in Sanderling (Calidris alba) from Greenland for paternity analyses. In addition, we tested 11 already published microsatellite markers which were originally developed for the congeneric speci[...]
Article
Anne L. Balogh, Auteur ;
Thomas B. Ryder, Auteur ;
Peter P. Marra, Auteur
Understanding factors that limit the productivity and survival of birds in rapidly changing human-dominated landscapes are key to managing future population persistence. To date, few studies have quantified both nest success and post-fledging su[...]
Article
Darius Stiels, Auteur ;
Kathrin Schidelko, Auteur ;
Jan O. Engler, Auteur ;
Renate van den Elzen, Auteur ;
Dennis Roedder, Auteur
Human transport and commerce have led to an increased spread of non-indigenous species. Alien invasive species can have major impacts on many aspects of ecological systems. Therefore, the ability to predict regions potentially suitable for alien[...]
Article
Amanda R. Falk, Auteur ;
Larry D. Martin, Auteur ;
Stephen T. Hasiotis, Auteur
Few anatomical criteria have been proposed to distinguish bird tracks from dinosaur tracks. The most commonly used criterion is the angle of divarication between toes II and IV, which is usually greater in birds than dinosaurs. The angle of diva[...]
