Results 21 to 30 of about 7,257 (176)

Managing the Threat of Subsidized Predators for a Threatened Shorebird

Animal Conservation, EarlyView.
Subsidized predators—native predators that have become more common due to human activities—challenge the persistence of many at‐risk prey species and require creative solutions beyond lethal predator control. In an 8‐year study, we placed small wire cages over western snowy plover nests that allow passage of plovers, but not their predators, and ...
R. R. Swaisgood, R. L. Smith, J. G. Schuetz, T. Wooten, L. I. Vilchis   +4 more
wiley   +1 more source

Población reproductora, productividad y distribución espacial de una población insular de cuervo, Corvus corax (Menorca, Islas Baleares) [PDF]

, 2011
Se ha llevado a cabo, en la isla de Menorca (Islas Baleares), un estudio sobre la población reproductora de cuervo (Corvus corax), centrándose en estimar su población, la productividad y su distribución espacial sobre la superficie insular.
de Pablo, Félix
core  

Assessing Spatiotemporal Side Effects of Diversionary Feeding on Mesopredators

Animal Conservation, EarlyView.
We tested whether diversionary feeding alters the space use, aggregation, or activity patterns of mesopredators using a treatment‐control design with camera traps. Although both species frequently used feeding stations, diversionary feeding did not significantly affect their spatial distribution, aggregation, or temporal behaviour.
Pablo Palencia, Patricia Mateo‐Tomás, José Vicente López‐Bao, Jorge Sereno‐Cadierno, Patricia Barroso, Pelayo Acevedo   +5 more
wiley   +1 more source

Tongue and Glottis Morphology of Cathartes aura and the Secret of Its Functional Adaptation

Acta Zoologica, EarlyView.
ABSTRACT Cathartes aura, commonly known as the Turkey vulture, is a scavenger bird belonging to the family Cathartidae that is widely distributed throughout the Americas and classified as a New World vulture. Its diet primarily consists of small‐sized carcasses, predominantly of wild animals.
Jean Caio Figueiredo de Almeida, Max Alex Santos Ferreira, Elane Guerreiro Giese, Alanna do Socorro Lima da Silva, Ana Rita de Lima, Érika Branco   +5 more
wiley   +1 more source

Índexs d’abundància i tendències poblacionals dels ocells comuns de Menorca segons les dades del programa SOCME. Període 2003-2008 [PDF]

, 2009
Índexs d’abundància i tendències poblacionals dels ocells comuns de Menorca segons les dades del Programa SOCME. Període 2003-2008. S’analitzen les dades recollides durant els primers 6 anys de seguiment gràcies a les quals podem deduir les abundàncies i
Anton, Marc, Carreras, David, Herrando, Sergi, Julià, Lluc, Pons-Fàbregas, Catalina   +4 more
core  

Jackdaw nestlings can discriminate between conspecific calls but do not beg specifically to their parents [PDF]

, 2014
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Behavioral Ecology following peer review. The definitive publisher-authenticated version Lies Zandberg, Jolle W. Jolles, Neeltje J.
Alex Thornton, Aubin, Beecher, Beer, Boeckle, Boeckle, Bugnyar, Cheney, Clark, Clayton, Cramp, Crawley, Dor, Emery, Emery, Fraser, Gibbons, Goodwin, Grodzinski, Haff, Henderson, Henderson, Insley, Jolle W. Jolles, Jolles, Jones, Kilner, Kondo, Kondo, Kroodsma, Larsen, Leonard, Leonard, Lessells, Lies Zandberg, Lorenz, Loretto, Madden, Marzluff, McArthur, McDonald, McDonald, Moreno-Rueda, Neeltje J. Boogert, Proffitt, Raihani, Rodríguez-Gironés, Rodríguez-Gironés, Rowley, Röell, Røskaft, Seed, Sharp, Storey, Von Bayern, Wanker, Wascher, Whiten, Wiley   +58 more
core   +1 more source

Novel object exploration in ravens (Corvus corax): Effects of social relationships [PDF]

Behavioural Processes, 2006
Social context has been shown to encourage, or to delay object exploration and learning. This ambiguity might be due to factors such as social relationships and personality of the individuals involved. Here, we investigated in ravens (Corvus corax) individuals' consistency in response to novel objects over development and across contexts: alone versus ...
Stöwe, Mareike, Bugnyar, Thomas, Loretto, Matthias-Claudio, Schloegl, Christian, Range, Friederike, Kotrschal, Kurt   +5 more
openaire   +4 more sources

Elevation, rather than land use, causes important dietary shifts in the Mediterranean golden eagle

Journal of Zoology, EarlyView.
In an ever‐changing landscape, golden eagles in the Iberian Peninsula demonstrate remarkable dietary adaptability. We monitored 50 distinct breeding events over 4 years using camera traps, collecting over 520 000 images. Elevation, rather than land use, emerged as the main driver of prey composition: lagomorphs and columbiforms dominated at lower ...
D. Gambra, E. Navarro, J. Martel, N. Fernández‐Pesquera, P. Ortega, A. San Miguel, R. Perea, M. Peláez   +7 more
wiley   +1 more source

The bird bones in the cave of Amalda [PDF]

, 1990
Análisis y estudio de los restos óseos de aves de los niveles paleolíticos y postpaleolíticos de la cueva de Amalda, y comparación de éstos con restos hallados en otras zonas de Cantabria, Pirineos, Languedoc y Norte de Cataluña.Amalda kobazuloko ...
EASTHAM, Anne
core  

Ravens, Corvus corax , differentiate between knowledgeable and ignorant competitors [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2005
Human social behaviour is influenced by attributing mental states to others. It is debated whether and to what extent such skills might occur in non-human animals. We here test for the possibility of ravens attributing knowledge about the location of food to potential competitors.
Bugnyar, Thomas, Heinrich, Bernd
openaire   +3 more sources