Browsing by Author "Bozinovic, Francisco"
Now showing items 1-20 of 33
-
Bozinovic, Francisco; Rojas, José M.; Maldonado, Karin; Sabat Kirkwood, Alejandro Pablo; Naya, Daniel (ELSEVIER GMBH, 2010-08-28)The flexibility of digestive traits characterizes a standard model of physiological flexibility, demonstrating that animals adjust their digestive attributes in order to maximize overall energy return. Using an intraspecific ...
-
Arroyo, Mary T. K.; Armesto, Juan J.; Bozinovic, Francisco; Cavieres, Lohengrin A.; Gutiérrez, Julio R.; Latorre, Claudio; Marquet, Pablo A.; Soto, Doris; Squeo, Francisco A. (Academia Chilena de Ciencias, 2005)
-
Sabat Kirkwood, Alejandro Pablo; Ramírez Otárola, Natalia; Barceló, Gonzalo; Salinas, Jonathan; Bozinovic, Francisco (ELSEVIER SCIENCE INC, 2010-05-15)The food habit hypothesis (FHH) predicts that mass-independent BMR is associated with dietary traits. In spite of decades of research, the FHH remains controversial, in part because ambiguities surrounding diet categorization ...
-
Narváez, Cristóbal; Ramírez Otárola, Natalia; Bozinovic, Francisco; Sánchez Hernández, Juan C.; Sabat Kirkwood, Alejandro Pablo (Elsevier, 2015)Inhibition of blood esterase activities by organophosphate (OP) pesticides has been used as a sensitive biomarker in birds. Furthermore, compared to mammalian vertebrates, less is known about the role of these enzyme ...
-
Gonzalez Gomez, Paulina (Universidad de Chile., 2009)En el ámbito del forrajeo, los beneficios de las habilidades cognitivas están relacionadas con la retención de información acerca de la calidad de los recursos disponibles, presentándose la oportunidad de sesgar el forrajeo ...
-
Veloso Iriarte, Claudio; Bozinovic, Francisco (1993)McNab (1986, 1988) has hypothesized that mammals using food with low energy content should exhibit basal metabolic rates (BMR) lower than those expected on the basis of their body mass (mb). That is, those species that ...
-
Naya, Daniel; Ebensperger, Luis A.; Sabat Kirkwood, Alejandro Pablo; Bozinovic, Francisco (UNIV CHICAGO PRESS, 2008-11-01)Lactation is the most energetically demanding period in the life cycle of female mammals, and its effects on digestive flexibility and the size of internal organs have been extensively studied in laboratory mice and ...
-
Naya, Daniel; Farfán, Gonzalo; Sabat Kirkwood, Alejandro Pablo; Méndez, Marco; Bozinovic, Francisco (ELSEVIER SCIENCE INC, 2005-02)Gut plasticity is a trait with implications on animal performance. However, and despite their importance as study models in physiology, research on gut flexibility in amphibians is scarce. In the present work, we analyse ...
-
Sabat Kirkwood, Alejandro Pablo; Bozinovic, Francisco (Springer Verlag, 2000)We examined the costs associated with acclimation in an omnivorous mouse (Phyllotis darwini) fed two contrasting diets (carbohydrate-rich and protein-rich). We studied the response of gut morphology and digestive performance ...
-
Sabat Kirkwood, Alejandro Pablo; Bozinovic, Francisco (ELSEVIER SCIENCE INC, 2008-11)We characterize the flexibility in digestive performance in degus (Octodon degus) an herbivorous rodent. We tested the hypothesis that dietary and physiological-digestive flexibility are correlated. Degus were fed with ...
-
Soto Gamboa, Mauricio Rodrigo (Universidad de Chile., 1998)La utilización diferencial de microambientes térmicamente favorables pueden significar un ahorro importante en la energía que debe ser asignada al proceso de termorregulación y puede ser determinante dentro del presupuesto ...
-
Thienel de La Fuente, Mariana; Canals Lambarri, Mauricio; Bozinovic, Francisco; Veloso Iriarte, Claudio (Elsevier, 2015)Insects exhibit three patterns of gas exchange: continuous (CoGE), cyclic (CGE) and discontinuous (DGE). In this work, we present the first record of a DGE in Phasmatodea and its transition to CGE and to CoGE through a ...
-
González Gómez, Paulina L.; Vásquez Salfate, Rodrigo; Bozinovic, Francisco (AMER ORNITHOLOGISTS UNION, 2011-01)We assessed how individual foraging preferences and cognitive performance affect foraging bout interval and the flexibility of foraging behavior in the nectarivorous Green-backed Firecrown (Sephanoides sephaniodes). Our ...
-
Sabat Kirkwood, Alejandro Pablo (Universidad de Chile, 1993)
-
Núñez Villegas, Mónica; Bozinovic, Francisco; Sabat Kirkwood, Alejandro Pablo (The Company of Biologist, 2014)Mammals exposed to low temperatures increase their metabolic rate to maintain constant body temperature and thus compensate for heat loss. This high and costly energetic demand can be mitigated through thermoregulatory ...
-
Catalán, Tamara P.; Wozniak, Aniela; Niemeyer Marich, August; Kalergis, Alexis M.; Bozinovic, Francisco (Elsevier, 2012)Although the study of thermoregulation in insects has shown that infected animals tend to prefer higher temperatures than healthy individuals, the immune response and energetic consequences of this preference remain ...
-
Sabat Kirkwood, Alejandro Pablo; Ramírez Otárola, Natalia; Bozinovic, Francisco; Martínez del Río, Carlos (Springer, 2013)We analyzed the carbon and nitrogen isotopic values of the muscle, liver, and crop contents (‘‘diet’’) of 132 individuals of 16 species of Chilean birds. The nitrogen content of diet was tightly correlated with the ...
-
Bacigalupe, Leonardo D.; Araya, Nury M.; Carter, Mauricio; Catalana, Tamara P.; Lardies, Marco A.; Bozinovic, Francisco (2007)What are the consequences of the natural variation in maternal body mass on offspring energetic performance? How are performance traits related to thermal physiology and energetics phenotypically integrated on offspring? ...
-
Bozinovic, Francisco; Sabat Kirkwood, Alejandro Pablo (CURRENT ZOOLOGY, CHINESE ACAD SCIENCES, 2010-04-20)The food habits hypothesis (FHH) stands as one of the most striking and often-cited interspecific patterns to emerge from comparative studies of endothermic energetics. The FHH identifies three components of diet that ...
-
Arim, Matías; Bozinovic, Francisco; Marquet, Pablo A. (BLACKWELL, 2007-09)Understanding the factors that constrain and drive changes in food chain length represents an open challenge in ecology. Although several explanatory hypotheses have been proposed, no synthesis has yet been achieved. The ...