| Titre : | Ibis : The International Journal of Avian Science 155(2) - APR 2013 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Robert Decaire, Auteur ;
Liana Y. Zanette, Auteur ;
Michael Clinchy, Auteur
Inequality in male and female numbers may affect population dynamics and extinction probabilities and so has significant conservation implications. We previously demonstrated that Brown-headed Cowbird Molothrus ater brood parasitism of Song Spar[...]
Article
Aleksi Lehikoinen, Auteur ;
Esa Lehikoinen, Auteur ;
Jari Valkama, Auteur ;
Risto A. Vaisanen, Auteur ;
Marja Isomursu, Auteur
Population consequences of parasites in wild birds are rarely documented. One exception is the decline of British finch populations due to an epidemic caused by the protozoan parasite Trichomonas gallinae. Finch trichomonosis has recently spread[...]
Article
Darius Strasevicius, Auteur ;
Micael Jonsson, Auteur ;
N. Erik I. Nyholm, Auteur ;
Bjorn Malmqvist, Auteur
Most large rivers in northern Sweden are regulated to produce hydropower, with subsequent effects on flow dynamics and aquatic insect communities. Several studies have shown that aquatic and terrestrial systems are intimately connected via the e[...]
Article
German O. Garcia, Auteur ;
Peter H. Becker, Auteur ;
Marco Favero, Auteur
Kleptoparasitism is a well-known foraging strategy used opportunistically by many seabirds. Here, we investigated the effect of intraspecific kleptoparasitism on chick growth and reproductive output in Common Terns Sterna hirundo. Effects were c[...]
Article
Henry M. Streby, Auteur ;
David E. Andersen, Auteur
We studied Ovenbird Seiurus aurocapilla and Golden-winged Warbler Vermivora chrysoptera populations in northern Minnesota, USA, to test two common assumptions in studies of songbird nest success: (1) that the condition of an empty nest on or nea[...]
Article
Felicity A. Edwards, Auteur ;
David P. Edwards, Auteur ;
Keith C. Hamer, Auteur ;
Richard G. Davies, Auteur
Commercial selective logging and the conversion of primary and degraded forests to agriculture are the biggest threats to tropical biodiversity. Our understanding of the impacts of these disturbances and the resulting local extinctions on the fu[...]
Article
Phil Shaw, Auteur ;
Peter Njoroge, Auteur ;
Vincent Otieno, Auteur ;
Edson Mlamba, Auteur
Article
Badrul Azhar, Auteur ;
David B. Lindenmayer, Auteur ;
Jeff Wood, Auteur ;
Joern Fischer, Auteur ;
Adrian Manning, Auteur ;
Chris McElhinny, Auteur ;
Mohamed Zakaria, Auteur
Functional diversity, an important element of avian biodiversity, can be examined by quantifying foraging guild composition. Understanding the ecological processes that underpin functional diversity of birds in oil palm Elaeis guineensis landsca[...]
Article
Anna Barashkova, Auteur ;
Ilya Smelansky, Auteur ;
Andrey Tomilenko, Auteur ;
Artem Akentiev, Auteur
Article
David Norman, Auteur ;
Will J. Peach, Auteur
Long-term studies can provide powerful insights into the relative importance of different demographic and environmental factors determining avian population dynamics. Here we use 23years of capturemarkrecapture data (19812003) to estimate recrui[...]
Article
Article
Nicholas J. Bayly, Auteur ;
Camila Gómez, Auteur ;
Keith A. Hobson, Auteur
Stopover sites used to accumulate the energy that fuels migration, especially those used prior to crossing ecological barriers, are regarded as critically important for the survival of NearcticNeotropical migratory birds. To assess whether South[...]
Article
Andrew J. Pierce, Auteur ;
Korakoch Pobprasert, Auteur
Using continuous video recording, we identified predation as the main cause of nest failure of understorey-nesting birds in an intact evergreen forest in northeastern Thailand. Our dataset of 87 predation events is the largest recorded in the tr[...]
Article
Anita Gamauf, Auteur ;
Graham Tebb, Auteur ;
Erwin Nemeth, Auteur
The selection of a suitable nest-site is critical for successful reproduction. Species' preferences for nest-sites have presumably evolved in relation to local habitat resources and/or interactions with other species. The importance of these two[...]
Article
Amy-Lee Kouwenberg, Auteur ;
J. Mark Hipfner, Auteur ;
Donald W. McKay, Auteur ;
Anne E. Storey, Auteur
Examining factors that operate outside the breeding season may provide new insights into life-history traits such as egg size, in which individual variation has not been fully explained. We measured corticosterone (CORT) levels and 15N values (t[...]
Article
Richard A. Fuller, Auteur ;
Stuart Bearhop, Auteur ;
Neil B. Metcalfe, Auteur ;
Theunis Piersma, Auteur
Foraging birds can manage time spent vigilant for predators by forming groups of various sizes. However, group size alone will not always reliably determine the optimal level of vigilance. For example, variation in predation risk or food quality[...]
Article
Santtu Kareksela, Auteur ;
Oskari Harma, Auteur ;
Carita Lindstedt, Auteur ;
Heli Siitari, Auteur ;
Jukka Suhonen, Auteur
One suggested anti-predator function of alarm calls is to deliver a message to a predator that it has been detected. Moreover, giving the alarm call could provide a signal to the predator that capturing the individual giving the alarm is more di[...]
Article
Andrew Digby, Auteur ;
Ben D. Bell, Auteur ;
Paul D. Teal, Auteur
Sexual call dimorphism in birds is usually associated with sexual size dimorphism. Departures from this relationship can be used to infer call function, but research into inter-sexual call differences, as with song function in general, has been [...]
Article
Jan O. Bustnes, Auteur ;
Borge Moe, Auteur ;
Morten Helberg, Auteur ;
Richard A. Phillips, Auteur
We studied the long-distance migration of Lesser Black-backed Gulls Larus fuscus fuscus breeding in northern Norway along their eastern flyway using geolocators in 2009 and 2010. The majority of birds wintered in lakes in East Africa and the sou[...]
Article
Lauryn Benedict, Auteur ;
Alan H. Krakauer, Auteur
Article
Fiona Burns, Auteur ;
Neil McCulloch, Auteur ;
Tamás Székely, Auteur ;
Mark Bolton, Auteur
Predator exclosure cages are designed to increase the clutch survival of ground-nesting birds. Predator exclosures provided for the endangered St. Helena Plover Charadrius sanctaehelenae, however, did not result in differences in clutch survival[...]
Article
Gerald Mayr, Auteur
A new fossil stem group representative of Coliiformes (mousebirds) with a remarkable skull morphology is described from the late Oligocene of Germany. Oligocolius psittacocephalon sp. nov. for the first time preserves the skull of a post-Eocene [...]
Article
Ming-Chih Chiu, Auteur ;
Mei-Hwa Kuo, Auteur ;
Shiao-Yu Hong, Auteur ;
Yuan-Hsun Sun, Auteur
The predicted effects of global climate change include altered patterns of precipitation and more extreme weather events, leading to an increase in the severity and frequency of episodic disturbances such as floods. These changes may affect loti[...]
