| Titre : | Ibis : The International Journal of Avian Science 155(3) - JUL 2013 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Tiziano Londei, Auteur
Article
Gwyneth Wilson, Auteur ;
Philip A. R. Hockey, Auteur
Range occupancy of the cooperatively breeding Southern Ground-Hornbill Bucorvus leadbeateri in South Africa has decreased by 65% in the last three generations and the effective management of the remaining populations is hampered by a lack of fun[...]
Article
Katarzyna Wojczulanis-Jakubas, Auteur ;
Piotr Minias, Auteur ;
Krzysztof Kaczmarek, Auteur ;
Tomasz Janiszewski, Auteur
We examined the brood sex ratio and offspring body mass in relation to the timing of breeding and brood size in the Great Cormorant Phalacrocorax carbo sinensis. The brood sex ratio was not related to brood size but it was significantly related [...]
Article
The effects of rainfall on different components of seasonal fecundity in a tropical forest passerine
Steffen Oppel, Auteur ;
Geoff M. Hilton, Auteur ;
Richard Allcorn, Auteur ;
Calvin Fenton, Auteur ;
Adrian J. Matthews, Auteur ;
David W. Gibbons, Auteur
Seasonal fecundity is a composite metric that is determined by component parameters such as clutch size, nest survival and re-nesting probability. Many of these component parameters are known to vary with environmental conditions, in particular [...]
Article
Priscilla Redondo, Auteur ;
Gilbert Barrantes, Auteur ;
Luis Sandoval, Auteur
Urban habitats are noisy and constrain acoustic communication in birds. We analysed the effect of anthropogenic noise on the vocalization characteristics of House Wrens Troglodytes aedon at two sites with different noise levels (rural and urban)[...]
Article
Kathy Fletcher, Auteur ;
David Howarth, Auteur ;
Alan Kirby, Auteur ;
Rob Dunn, Auteur ;
Adam Smith, Auteur
Upland birds are predicted to be particularly vulnerable to the effects of climate change, yet few studies have examined these effects on their breeding phenology and productivity. Laying dates of Red Grouse Lagopus lagopus scotica in the Scotti[...]
Article
Henry M. Streby, Auteur ;
Sean M. Peterson, Auteur ;
Justin A. Lehman, Auteur ;
Gunnar R. Kramer, Auteur ;
Kelly J. Iknayan, Auteur ;
David E. Andersen, Auteur
Despite the broad consensus that force-fledging of nestling songbirds lowers their probability of survival and therefore should be generally avoided by researchers, that presumption has not been tested. We used radiotelemetry to monitor the surv[...]
Article
Dan Chamberlain, Auteur ;
James Pearce-Higgins, Auteur
Article
Erin N. Colbert-White, Auteur ;
E. Monteen McCord, Auteur ;
Desiree I. Sharpe, Auteur ;
Dorothy M. Fragaszy, Auteur
Variations on the string-pull experiment have been presented to a variety of avian species. Here, we present the results of a basic vertical string-pull task with a Harris's Hawk Parabuteo unicinctus. A 2-year-old subject retrieved a shielded fo[...]
Article
Elena Macías-Sanchez, Auteur ;
Juan G. Martinez, Auteur ;
Jesus M. Aviles, Auteur ;
Manuel Soler, Auteur
The appearance of plumage in brood parasites represents an evolutionary conflict between sexual selection that favours colourful plumages, and parasite-host coevolution that favours crypsis. In this study we quantified the degree of sexual dimor[...]
Article
Thomas F. Fondell, Auteur ;
Paul L. Flint, Auteur ;
Joel A. Schmutz, Auteur ;
Jason L. Schamber, Auteur ;
Christopher A. Nicolai, Auteur
Birds employ varying strategies to accommodate the energetic demands of moult, one important example being changes in body mass. To understand better their physiological and ecological significance, we tested three hypotheses concerning body mas[...]
Article
Xin Wang, Auteur ;
Anthony D. Fox, Auteur ;
Peihao Cong, Auteur ;
Lei Cao, Auteur
More than 90% of the Lesser White-fronted Geese Anser erythropus in the Eastern Palearctic flyway population winter at East Dongting Lake, China. To explain this restricted distribution and to understand better the winter feeding ecology and hab[...]
Article
Canchao Yang, Auteur ;
Longwu Wang, Auteur ;
Yu-Cheng Hsu, Auteur ;
Anton Antonov, Auteur ;
Arne Moksnes, Auteur ;
Eivin Roskaft, Auteur ;
Wei Liang, Auteur ;
Bard G. Stokke, Auteur
Birds are capable of seeing the ultraviolet light (UV) spectrum and as a consequence have evolved UV-reflective structures with signalling functions. Avian eggs also reflect in the UV spectrum but the importance of UV egg matching in egg rejecti[...]
Article
Rita Hargitai, Auteur ;
Gergely Nagy, Auteur ;
Márton Herényi, Auteur ;
Janos Toeroek, Auteur
Many bird species lay eggs speckled with protoporphyrin-based spots, however, for most of them the function of eggshell spotting is unknown. A plausible hypothesis is that protoporphyrin might have a structural function in strengthening the eggs[...]
Article
Vanesa L. De Pietri, Auteur
The fossil ibis Plegadis paganus is known from the Early Miocene of the Saint-Gerand-le-Puy area, France. It was first described in the 19th century by Milne-Edwards (1867-1868), who noticed similarities with members of the extant genera Eudocim[...]
Article
Urban Olsson, Auteur ;
Reuven Yosef, Auteur ;
Per Alström, Auteur
We estimated a phylogeny for 10 taxa currently placed in four polytypic species that collectively encompass the African brown buntings': Cape Bunting Emberiza capensis, Cinnamon-breasted Bunting Emberiza tahapisi, Lark-like Bunting Emberiza impe[...]
Article
Jean-Marc Pons, Auteur ;
Guy M. Kirwan, Auteur ;
Richard F. Porter, Auteur ;
Jerome Fuchs, Auteur
We investigated phylogenetic relationships among Otus scops owls from Socotra Island, the Arabian Peninsula and East Africa using molecular, vocalization and biometric data. The Socotra Scops Owl Otus senegalensis socotranus, currently treated a[...]
Article
Krijn B. Trimbos, Auteur ;
Rosemarie Kentie, Auteur ;
Marco Van Der Velde, Auteur ;
Jos C. E. W. Hooijmeijer, Auteur ;
Carola Poley, Auteur ;
C. J. M. Musters, Auteur ;
Geert R. De Snoo, Auteur ;
Theunis Piersma, Auteur
Recently, Schroeder etal. (2010, Ibis 152: 368-377) suggested that intronic variation in the CHD1-Z gene of Black-tailed Godwits breeding in southwest Friesland, The Netherlands, correlated with fitness components. Here we re-examine this surpri[...]
Article
Yang Liu, Auteur ;
Irene Keller, Auteur ;
Gerald Heckel, Auteur
Conspecific aggregation of waterfowl in winter is a common example of animal flocking behaviour, yet patterns of relatedness and temporal substructure in such social groups remain poorly understood even in common species. A previous study based [...]
Article
Andrew H. J. Harrop, Auteur ;
J. Martin Collinson, Auteur ;
Steve P. Dudley, Auteur ;
Chris Kehoe, Auteur
Article
Sara Mira, Auteur ;
Sophie Arnaud-Haond, Auteur ;
Luis Palma, Auteur ;
Maria Leonor Cancela, Auteur ;
Pedro Beja, Auteur
In bird species that have a high movement capacity, dispersal may connect subpopulations over vast geographical regions, with important consequences for the design of conservation management strategies. Here we used a molecular approach to infer[...]
Article
