Browsing by Author "Vásquez Salfate, Rodrigo"
Now showing items 1-20 of 27
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Kenagy, G. J.; Vásquez Salfate, Rodrigo; Nespolo, Roberto F.; Bozinovic, Francisco (Sociedad de Biologia de Chile, 2002)We present an analysis of time and energy allocation in a day-active caviomorph rodent, the degu, Octodon degus, in central Chile. We quantified components of surface activity in the field on a daily basis in individual ...
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Vásquez Salfate, Rodrigo (Springer-Verlag, 1994)It is well known that the risk of predation affects prey decision making. However, few studies have been concerned with the cues used by prey to assess this risk. Prey animals may use indirect environmental cues to assess ...
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Kelt, Douglas A.; Cofré, Hernán L.; Cornelius, Cintia; Engilis, Andrew, Jr.; Gutiérrez, Julio R.; Marquet, Pablo A.; Medel Contreras, Rodrigo; Meserve, Peter L.; Quirici, Verónica; Samaniego, Horacio; Vásquez Salfate, Rodrigo (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD., 2016)The avifauna of Chile is relatively depauperate, comprising 469 extant species, of which 213 are terrestrial. However, the Coquimbo Region presents a broad ecological transition from the hyperarid Atacama Desert to the ...
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Quirici, Verónica; Venegas, Cristóbal I.; González Gómez, Paulina L.; Castaño Villa, Gabriel J.; Wingfield, John C.; Vásquez Salfate, Rodrigo (Elsevier, 2014)Glucocorticoids are essential for life and their secretion is regulated by the hypothalamic–pituitary–adrenal axis (HPA). The HPA axis is often divided into two components: baseline glucocorticoids levels and stress ...
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van Dongen, Wouter F. D.; Lazzoni, Ilenia; Winkler, Hans; Vásquez Salfate, Rodrigo; Estades Marfán, Cristián (Springer, 2013)The invasion or expansion of non-native species into new geographic areas can pose a major threat to the conservation of biodiversity. These threats are augmented when the newly-arrived species interacts with native ...
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Altimiras, Francisco; Uszczynska-Ratajczak, Barbara; Camara, Francisco; Vlasova, Anna; Palumbo, Emilio; Newhouse, Stephen; Deacon, Robert M.J.; Farias, Leandro A.E.; Hurley, Michael J.; Loyola, David E.; Vásquez Salfate, Rodrigo; Dobson, Richard; Guigó, Roderic; Cogram, Pa (Frontiers Media S.A., 2017)
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González Gómez, Paulina L.; Merrill, Loren; Ellis, Vincenzo A.; Venegas, Cristobal; Pantoja, Javiera I.; Vásquez Salfate, Rodrigo; Wingfield, John C. (Elsevier, 2013)Previous studies show that most birds inhabiting temperate regions have well defined life history stages, and they modulate the production of testosterone (T) and corticosterone (CORT) in response to changes in seasonality. ...
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Masello, Juan F.; Vásquez Salfate, Rodrigo (BMC, 2018)Background: Parasites can exert selection pressure on their hosts through effects on survival, on reproductive success, on sexually selected ornament, with important ecological and evolutionary consequences, such as changes ...
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Cotoras Olivares, Ivania Slovena (2011)Las aves con estrategias de vida migratorias y no migratorias se ven beneficiadas de modo diferente en relación a la obtención y evaluación de la información sobre el ambiente. Ya que los individuos migratorios permanecen ...
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Poblete Quintanilla, Yanina del Carmen (Universidad de Chile, 2012)
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Kenagy, G. J.; Nespolo, Roberto F.; Vásquez Salfate, Rodrigo; Bozinovic, Francisco (Sociedad de Biologia de Chile, 2002)We present an analysis of behavioral flexibility in a day-active caviomorph rodent, the degu, Octodon degus, in response to temporal (daily and seasonal), spatial, and thermal heterogeneity of its environment. We quantified ...
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Frugone Wielandt, María José (Universidad de Chile, 2015)
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González Gómez, Paulina L.; Bozinovic, Francisco; Vásquez Salfate, Rodrigo (Academic Press, 2011)Episodic memory has been described as the ability to recall personal past events, involving what, where and when an event has been experienced. Cognitive abilities like learning and memory are pivotal to the performance ...
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Bargsted Aravena, María Olga (Universidad de Chile, 2013)La proporción de aves que eran consideradas monógamas disminuyó considerablemente con la aparición de técnicas de genética molecular como los microsatélites, llevando a la distinción de la monogamia social de la genétic4 ...
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Maldonado, Karin; van Dongen, Wouter F D; Vásquez Salfate, Rodrigo; Sabat Kirkwood, Alejandro Pablo (2012)Increasing research has attempted to clarify the links between animal personality and physiology. However, the mechanisms driving this association remain largely unknown, and knowledge of how ecological factors may affect ...
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Pérez Giraldo, Laura Camila (Universidad de Chile, 2016)
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Quispe, René; Villavicencio, Camila P.; Cortés, Arturo; Vásquez Salfate, Rodrigo (2009)Although foraging comprises a set of behaviours that typically vary with resource availability and.or climatic conditions, few studies have analysed how foraging, particularly food hoarding, varies across populations ...
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Yáñez, Diego I.; Quirici, Verónica; Castaño Villa, Gabriel J.; Poulin, Elie; Vásquez Salfate, Rodrigo (Sociedad Española Ornitología, 2015)Eight novel microsatellites were isolated and characterised in the thorn-tailed rayadito Aphrastura spinicauda in order to evaluate genetic diversity in three contrasting populations, two of them at the boundaries of the ...
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Velásquez, Nelson A.; Valdés, José Luis; Vásquez Salfate, Rodrigo; Penna Varela, Mario (Elsevier, 2015)Sexual selection is one of the main evolutionary forces that drive signal evolution. In previous studies, we have found out that males of Pleurodema thaul, a frog with an extensive latitudinal distribution in Chile, emits ...
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Merino, Santiago; Vásquez Salfate, Rodrigo; Martínez, Javier; Celis Diez, Juan L.; Gutiérrez Jiménez, Leticia; Ippi, Silvina; Sánchez Monsalvez, Inocencia; Martínez-De La Puente, Josué (Blackwell Publishing Ltd, 2009)The Microbiotheriid Dromiciops gliroides, also known as 'Monito del Monte', is considered to be a threatened species and the only living representative of this group of South American marsupials. During the last few years, ...