| Titre : | Ibis : The International Journal of Avian Science 154(1) - JAN 2012 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Mari Rajala, Auteur ;
Santtu Kareksela, Auteur ;
Osmo Ratti, Auteur ;
Jukka Suhonen, Auteur
Survivorship in animals depends on both foraging activities and avoidance of predation, and thus behavioural decisions often reflect a trade-off between predation risk and foraging efficiency. In this experimental study, we compared behavioural [...]
Article
Alastair M. M. Baylis, Auteur ;
Alain F. Zuur, Auteur ;
Paul Brickle, Auteur ;
Pierre A. Pistorius, Auteur
Detecting and predicting how populations respond to environmental variability are eminent challenges in conservation research and management. This is particularly true for wildlife populations at high latitudes, many of which demonstrate changes[...]
Article
Antoni Margalida, Auteur ;
Jose R. Benitez, Auteur ;
Jose A. Sanchez-Zapata, Auteur ;
Enrique Avila, Auteur ;
Rafael Arenas, Auteur ;
Jose A. Donazar, Auteur
Between 2000 and 2009 we studied the diet and breeding success of Egyptian Vultures Neophron percnopterus in southern Spain. Wild species accounted for 74.9% of prey items (n = 1071) with a predominance of mammals (62.3%), followed by birds (20.[...]
Article
Tony D. Williams, Auteur ;
Raime B. Fronstin, Auteur ;
Aki Otomo, Auteur ;
Emily Wagner, Auteur
The levels of haematocrit (Hct) and plasma haemoglobin (Hb) vary markedly through the annual cycle of birds, as well as among individuals at all life-stages (embryos, chicks, adults). It is thus surprising that the functional, fitness-related co[...]
Article
Francesc Sarda-Palomera, Auteur ;
Gerard Bota, Auteur ;
Carlos Vinolo, Auteur ;
Oriol Pallares, Auteur ;
Victor Sazatornil, Auteur ;
Lluis Brotons, Auteur ;
Spartacus Gomariz, Auteur ;
Francesc Sarda, Auteur
Unmanned aircraft systems (UAS) are remote-controlled devices capable of collecting information from difficult-to-access places while minimizing disturbance. Although UAS are increasingly used in many research disciplines, their application to w[...]
Article
Magnus P. Johansson, Auteur ;
Barry J. McMahon, Auteur ;
Jacob Höglund, Auteur ;
Gernot Segelbacher, Auteur
Effective DNA extraction methods from bird feathers have facilitated non-invasive sampling, leading to the suggestion that feathers are a great source for genetic studies. However, few studies have assessed whether all feathers can be used or pr[...]
Article
Francesca Coccon, Auteur ;
Barney A. Schlinger, Auteur ;
Leonida Fusani, Auteur
Male Golden-collared Manakins Manacus vitellinus perform an elaborate courtship display composed of acrobatic jumps between saplings delimiting a court on the forest floor. Males rehearse their displays for hours until they are executed with ama[...]
Article
Juan D. Ibáñez-Álamo, Auteur ;
Olivia Sanllorente, Auteur ;
Manuel Soler, Auteur
The effects of visits to nests by researchers interested in quantifying avian nesting success have received considerable attention, as researchers have long been concerned about the possible negative effects of their own activities on the result[...]
Article
Airam Rodriguez, Auteur ;
Beneharo Rodriguez, Auteur ;
Matthew P. Lucas, Auteur
The secretive breeding behaviour of petrels makes monitoring their breeding populations challenging. To assess population trends of Corys Shearwater Calonectris diomedea, Bulwers Petrel Bulweria bulwerii and Macaronesian Shearwater Puffinus baro[...]
Article
S. James Reynolds, Auteur ;
Stephan J. Schoech, Auteur
Article
Frank Cézilly, Auteur ;
Ismael Keddar, Auteur
We quantified vigilance during feeding in the Zenaida Dove Zenaida aurita, a tropical species with stable pair-bonds and year-round territoriality. Both males and females decreased the proportion of time spent vigilant by 30% when feeding with t[...]
Article
Emilio Pagani-Nunez, Auteur ;
Juan Carlos Senar, Auteur
Yearling birds generally display duller colours than adults. This may be due to selection favouring birds with more intensely coloured plumage or to an increase in colour after the first complete moult. Most research to date on the topic has bee[...]
Article
Roger Jovani, Auteur ;
Jesus M. Aviles, Auteur ;
Francisco Rodriguez-Sanchez, Auteur
Male and female European Robins Erithacus rubecula display their red breasts in year-round territorial contests. Despite the clear signalling role of the red breast, little is known about its sexual dimorphism or trends in size when Robins age. [...]
Article
Michael Coeurdassier, Auteur ;
Claire Poirson, Auteur ;
Jean-Philippe Paul, Auteur ;
Dominique Rieffel, Auteur ;
Dominique Michelat, Auteur ;
David Reymond, Auteur ;
Philippe Legay, Auteur ;
Patrick Giraudoux, Auteur ;
Renaud Scheifler, Auteur
Poisoning by pesticides is considered one of the primary threats to the Red Kite Milvus milvus. We studied the diet of this raptor in an area of eastern France where the rodenticide bromadiolone is widely used to control Water Vole Arvicola terr[...]
Article
P. Mateo-Tomas, Auteur ;
P. P. Olea, Auteur
Article
Carol L. Mcintyre, Auteur ;
Joshua H. Schmidt, Auteur
Understanding relationships between environmental conditions and reproductive parameters is important when interpreting variation in animal population size. The northwestern North American population of Golden Eagles Aquila chrysaetos canadensis[...]
Article
Martin Collinson, Auteur ;
Andrew Harrop, Auteur ;
Andy Brown, Auteur ;
Steve Dudley, Auteur ;
James Gilroy, Auteur ;
Chris Kehoe, Auteur ;
Andrew Lassey, Auteur ;
Richard Millington, Auteur ;
Adam Rowlands, Auteur ;
Jimmy Steele, Auteur ;
Steve Votier, Auteur
Article
Ralph Buij, Auteur ;
Dirk Van der Goes, Auteur ;
Hans H. De Iongh, Auteur ;
Sama Gagare, Auteur ;
Patsy Haccou, Auteur ;
Jan Komdeur, Auteur ;
Geert De Snoo, Auteur
The floodplains of the West-African Sahel region have experienced extensive habitat transformation during the past four decades, coinciding with an impoverishment of raptor populations. We investigated foraging patterns of Palaearctic migratory [...]
Article
Ines Catry, Auteur ;
Aldina M. A. Franco, Auteur ;
William J. Sutherland, Auteur
Spatial and temporal variation in prey abundance have been shown to impact the time of breeding and breeding success of birds. Understanding the ecological requirements of preferred prey can help develop management measures to improve food suppl[...]
Article
Carlos Palacín, Auteur ;
Juan Carlos Alonso, Auteur ;
Carlos A. Martín, Auteur ;
Javier A. Alonso, Auteur
A detailed knowledge of the habitat requirements of steppe birds living in farmland habitats is necessary to identify agricultural practices compatible with their conservation. The globally threatened Great Bustard Otis tarda is a partial migran[...]
Article
Sayam U. Chowdhury, Auteur
Article
Sonja C. Ludwig, Auteur ;
Peter H. Becker, Auteur
Mating between close relatives can have deleterious effects on reproductive success or offspring fitness, which should favour the evolution of active or passive inbreeding avoidance mechanisms. In birds, evidence for active inbreeding avoidance [...]
Article
Dan Chamberlain, Auteur ;
Raphaël Arlettaz, Auteur ;
Enrico Caprio, Auteur ;
Ramona Maggini, Auteur ;
Paolo Pedrini, Auteur ;
Antonio Rolando, Auteur ;
Niklaus Zbinden, Auteur
Article
Carlos B. Zavalaga, Auteur ;
Steven D. Emslie, Auteur ;
Felipe A. Estela, Auteur ;
Martina S. Mueller, Auteur ;
Giacomo Dell'Omo, Auteur ;
David J. Anderson, Auteur
Most tropical booby species complete breeding foraging trips within daylight hours, thus avoiding nights at sea. Nazca Boobies Sula granti are unusual in this respect, frequently spending one or more nights away from the nest. We used GPS datalo[...]
Article
Canchao Yang, Auteur ;
Anton Antonov, Auteur ;
Yan Cai, Auteur ;
Bard G. Stokke, Auteur ;
Arne Moksnes, Auteur ;
Eivin Roskaft, Auteur ;
Wei Liang, Auteur
We documented brood parasitism by the poorly studied Large Hawk-Cuckoo on a previously unknown host species, the Chinese Babax. Furthermore, we describe a new egg colour for the Large Hawk-Cuckoo. The parasitism rate of Chinese Babax nests over [...]
Article
Davy S. Bosman, Auteur ;
Harry J. P. Vercruijsse, Auteur ;
Eric W. M. Stienen, Auteur ;
Magda Vincx, Auteur ;
Liesbeth de Neve, Auteur ;
Luc Lens, Auteur
Studies of migration have revealed multiple trade-offs with other life-history traits that may underlie observed variation in migratory properties among ages and sexes. To assess whether, and to what extent, body size and/or sex-specific differe[...]
Article
Amanda R. Ridley, Auteur ;
Alex M. Thompson, Auteur
The southern African subspecies of Jacobin Cuckoo Clamator jacobinus serratus is a brood parasite of a range of host species. While Jacobin Cuckoos do not evict host young, previous research has found that host young rarely survive the nestling [...]
Article
Iain J. Stenhouse, Auteur ;
Carsten Egevang, Auteur ;
Richard A. Phillips, Auteur
The migrations and winter distributions of most seabirds, particularly small pelagic species, remain poorly understood despite their potential as indicators of marine ecosystem health. Here we report the use of miniature archival light loggers ([...]
