Browsing by Author "e0cadc00-5aef-4364-845c-abe1cb9d79eb"
Now showing items 21-40 of 46
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Torres-Contreras, Hugo; Bozinovic, Francisco (Ecological Society of America, 1997)The degu, Octodon degus (Rodentia, Octodontidae) is a diurnal herbivore inhabiting the semiarid and mediterranean environments of northern and central Chile. In the field, degus are constrained to specific foraging areas, ...
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Naya, Daniel; Veloso Iriarte, Claudio; Bozinovic, Francisco (Finnish Zoological and Botanical Publishing Board, 2009)To date, digestive flexibility has been studied in dozens of vertebrate species. However, practically all of these works has ignored the importance of intraspecific physiological variability across populations inhabiting ...
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Catalán, Tamara P.; Niemeyer, Hermann M.; Kalergis, Alexis M.; Bozinovic, Francisco (2012)Since the preferential body temperature should positively correlate with physiological performance, behavioural fever should enhance an organism's immune response under an immune challenge. Here we have studied the ...
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Sabat Kirkwood, Alejandro Pablo; Cavieres, Grisel; Veloso Iriarte, Claudio; Canals Lambarri, Mauricio; Bozinovic, Francisco (2009)One of the most controversial hypotheses that associate basal metabolic rate (BMR) with food habits and habitat productivity is the food habit hypothesis (FHH). Here we examined the relationship between BMR, diet, and ...
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Maldonado, Karin; Sabat Kirkwood, Alejandro Pablo; Piriz, Gabriela; Bogdanovich, José M.; Nespolo, Roberto F.; Bozinovic, Francisco (Frontiers Media S.A., 2016)© 2016 Maldonado, Sabat, Piriz, Bogdanovich, Nespolo and Bozinovic. Food availability varies substantially throughout animals' lifespans, thus the ability to profit from high food levels may directly influence animal ...
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Bacigalupe, Leonardo D.; Araya, Nury M.; Carter, Mauricio J.; Catalána, Tamara P.; Lardies, Marco A.; Bozinovic, Francisco (Elsevier Inc., 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? ...
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Peña Villalobos, Isaac; Núñez Villegas, Mónica; Bozinovic, Francisco; Sabat Opazo, Pablo (Chinese Academy of Sciences, 2014)Due to the higher energy requirements of birds during winter, it is predicted that the activities of metabolic enzymes (e.g., citrate synthase, CS and cytochrome C oxidase, COX) should increase in tandem with increases in ...
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Canals, Mauricio; Rosenmann, Mario; Novoa, F. Fernando; Bozinovic, Francisco (Polish Academy of Sciences, 1998)Huddling is effective in decreasing metabolic rate permitting energy saving. However, this decrease varies among different species depending on physical, physiological and behavioral characteristics of the huddled individuals. ...
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Ramírez Otárola, Natalia; Maldonado, Karin; Cavieres, Grisel; Bozinovic, Francisco; Sabat, Pablo (Wiley, 2021)Environmental conditions experienced by developing animals have an impact on the development and maturity of the immune system. Specifically, the diet experienced during early development influences the maintenance and ...
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Catalán, Tamara P.; Barceló, Matías; Niemeyer, Hermann M.; Kalergis, Alexis M.; Bozinovic, Francisco (2011)Background: Feeding habits and dietary nutritional content may play a key role in pathogendependent foraging ecology, because mounting an effective immune response is costly for the host. Hypothesis: Since immune defence ...
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Maldonado, Karin; Bozinovic, Francisco; Cavieres, Grisel; Fuentes, Carolina A.; Cortés, Arturo; Sabat Kirkwood, Alejandro Pablo (2012)Phenotypic flexibility in metabolic rates allows organisms to reversibly adjust their energy flow to meet challenges imposed by a variable environment. In turn, the food habits hypothesis (FHH) predicts that species or ...
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Naya Monteverde, Daniel; Veloso Iriarte, Claudio; Bozinovic, Francisco (Springer, 2008)According to the "barrel model", an organism may be represented by a container, with input energy constraints (foraging, digestion, and absorption) symbolized by funnels connected in tandem, and energy outputs (maintenance, ...
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Clavijo Baquet, Sabrina; Cumplido, Nicolás; Bozinovic, Francisco (Wiley-Blackwell, 2016)Endotherms maintain high and constant body temperatures through the production and maintenance of metabolic heat. Defining the evolutionary history of these thermal adaptations and the selective factors responsible for the ...
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Novoa, F. Fernando; Veloso Iriarte, Claudio; López Calleja, M. Victoria; Bozinovic, Francisco (University of California Press, 1996)
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Naya, Daniel E.; Veloso Iriarte, Claudio; Sabat Opazo, Pablo; Bozinovic, Francisco (2009)One of the most fundamental questions in organismal ecology is how animals work in a continuously changing environment. In order to contribute to the current understanding of this question, this study evaluated seasonal ...
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Naya, Daniel E.; Veloso, Claudio; Muñoz, José L.P.; Bozinovic, Francisco (2007)Lizard tail autotomy is considered an efficient anti-predator strategy that allows animals to escape from a predator attack. However, since the tail also is involved in many alternative functions, tailless animals must ...
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Bozinovic, Francisco; Sabat Opazo, Pablo; Rezende, Enrico L.; Canals Lambarri, Mauricio (2016)Background: Among the predictions of the effect of future climate change, the impact of thermal conditions at local levels on the performance of individuals and their acclimation capacities is key to understanding animals' ...
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Tapia Monsalve, Romina; Newsome, Seth; Sánchez Hernández, Juan Carlos; Bozinovic, Francisco; Nespolo, Roberto; Sabat Kirkwood, Alejandro Pablo (Springer, 2018)Life in saline environments represents a major physiological challenge for birds, particularly for passerines that lack nasal salt glands and hence are forced to live in environments that do not contain salty resources. ...
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Sabat Kirkwood, Alejandro Pablo; Lagos, Jorge A.; Bozinovic, Francisco (1999)The phenotypic response of digestive enzymes was assessed in two species of rodents with different foods habits. Species were Phyllotis darwini (omnivorous) and Octodon degus (herbivorous). The activity of sucrase, maltase ...
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Maldonado Pacheco, Karín; Bozinovic, Francisco; Newsome, Seth D.; Sabat Kirkwood, Alejandro Pablo (Ecological Society of America, 2017)The niche variation hypothesis (NVH) predicts that populations with broader niches should exhibit greater between- individual diet variation or individual specialization (IS) relative to populations with narrower niches. ...