| Titre : | Ibis : The International Journal of Avian Science 151(3) - JUL 2009 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
David J. Baker, Auteur ;
Richard A. Stillman, Auteur ;
James M. Bullock, Auteur
Recent population declines of seed-eating farmland birds have been associated with reduced overwinter survival due to reductions in food supply. An important component of predicting how food shortages will affect animal populations is to measure[...]
Article
Ismael Galvan, Auteur ;
Juan Moreno, Auteur
It has been proposed that mate preferences by female Pied Flycatchers Ficedula hypoleuca differ between southern (Iberian) and northern (Scandinavian) European populations. Whereas the size of the white forehead patch, but not plumage colour, ha[...]
Article
P. Dee Boersma, Auteur ;
Ginger A. Rebstock, Auteur
Most penguin species lay two eggs 3-4 days apart that hatch 1-2 days apart. Hypotheses to explain the shorter incubation period for the second egg include differences in porosity of the eggshells. Eggs with more or larger pores and/or thinner sh[...]
Article
Daniel R. Ruthrauff, Auteur ;
Juliette N. Keller, Auteur ;
Daniel J. Rizzolo, Auteur
Parental brood attendance patterns vary greatly among shorebird species. For monogamous calidridine species, biparental care with female-first brood departure is most common. It is believed that adult sandpipers balance potential individual surv[...]
Article
Kurt K. Burnham, Auteur ;
William A. Burnham, Auteur ;
Ian Newton, Auteur
Gyrfalcons Falco rusticolus use the same nest-sites over long periods of time, and in the cold dry climate of Greenland, guano and other nest debris decay slowly. Nineteen guano samples and three feathers were collected from 13 Gyrfalcon nests w[...]
Article
Jorg Welcker, Auteur ;
Harald Steen, Auteur ;
Ann M. A. Harding, Auteur ;
Geir W. Gabrielsen, Auteur
Sexual differences in foraging and provisioning behaviour have been observed in several size-dimorphic seabird species. These differences are usually thought to be driven by size-related mechanisms such as the ability to compete for food or defe[...]
Article
Karen Steenhof, Auteur ;
Julie A. Heath, Auteur
Many hypotheses attempt to explain why younger, less experienced birds have a relatively low reproductive output. We evaluated reproductive patterns of marked American Kestrels Falco sparverius nesting in boxes in southwestern Idaho from 1992 to[...]
Article
Raivo Mand, Auteur ;
Agu Leivits, Auteur ;
Meelis Leivits, Auteur ;
Nicholas L. Rodenhouse, Auteur
Nestbox provision is a technique used to increase nest-site availability for secondary cavity-nesting birds. However, little is known about the demographic consequences of nestbox provision in different habitat types. To assess how nestbox provi[...]
Article
Chris M. Hewson, Auteur ;
David G. Noble, Auteur
This paper outlines population trends (with confidence intervals) for 49 species in woodland habitats in Britain as monitored by the British Trust for Ornithology's (BTO) Common Bird Census (CBC) between 1967 and 1999. Additionally, the possible[...]
Article
David Houston, Auteur ;
Ruedi Nager, Auteur
Article
Johannes Kamp, Auteur ;
Robert D. Sheldon, Auteur ;
Maxim A. Koshkin, Auteur ;
Paul F. Donald, Auteur ;
Robert Biedermann, Auteur
Habitat associations and distribution of breeding Sociable Lapwings were examined in 2004-2008 in central Kazakhstan to develop and assess hypotheses relating to the species' decline and high conservation threat status. At a landscape scale, bre[...]
Article
Juli Broggi, Auteur ;
Juan C. Senar, Auteur
Article
Maria Paula Delgado, Auteur ;
Manuel B. Morales, Auteur ;
Juan Traba, Auteur ;
Eladio L. Garcia de la Morena, Auteur
The Little Bustard Tetrax tetrax is one of the most threatened steppe bird species in Europe, due mainly to agricultural intensification. Despite the relative importance of the Iberian population (approximately 50% of the global population) litt[...]
Article
Sarah Leclaire, Auteur ;
Herve Mulard, Auteur ;
Richard H. Wagner, Auteur ;
Scott A. Hatch, Auteur ;
Etienne Danchin, Auteur
Article
Anne E. Goodenough, Auteur ;
Simon L. Elliot, Auteur ;
Adam G. Hart, Auteur
Creating conservation policies for declining migrant species in response to global change presents a considerable challenge. Migrant species are affected by factors at breeding grounds, overwintering areas and during migration. Accordingly, rese[...]
Article
Gary Voelker, Auteur ;
Martim Melo, Auteur ;
Rauri C. K. Bowie, Auteur
Article
Raul Bonal, Auteur ;
Jose Miguel Aparicio, Auteur
Article
Diann J. Prosser, Auteur ;
John Y. Takekawa, Auteur ;
Scott H. Newman, Auteur ;
Baoping Yan, Auteur ;
David C. Douglas, Auteur ;
Yuansheng Hou, Auteur ;
Zhi Xing, Auteur ;
Dehai Zhang, Auteur ;
Tianxian Li, Auteur ;
Yongdong Li, Auteur ;
Delong Zhao, Auteur ;
William M. Perry, Auteur ;
Eric C. Palm, Auteur
The role of wild birds in the spread of highly pathogenic avian influenza H5N1 has been greatly debated and remains an unresolved question. However, analyses to determine involvement of wild birds have been hindered by the lack of basic informat[...]
Article
Joaquin Ortego, Auteur ;
Laura Zapero, Auteur ;
Gustau Calabuig, Auteur ;
Pedro J. Cordero, Auteur ;
Jose Miguel Aparicio, Auteur
Exposure to chronic stress early on during development has important deleterious consequences later in life, reducing important components of individual fitness such as survival and future reproduction. In this study, we evaluate the factors ass[...]
