Browsing by Author "Sabat Kirkwood, Alejandro Pablo"
Now showing items 1-9 of 9
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Alfaro, Carmen; Figueroa Pérez, Daniela; Sabat Kirkwood, Alejandro Pablo; Sallaberry Ayerza, Michel; Canals Lambarri, Mauricio (SOC CHILENA ANATOMIA, 2009-12-12)We studied the respiratory surface density and the thickness of the air-blood barrier in the Picui Ground Dove (Columbina picui), and compared it with Eared Dove (Zenaida auriculata) and Blacked-winged Ground Dove (Metropelia ...
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Ríos, Juan Manuel; Zarco, Agustín; Mosca Torres, María E.; Sabat Kirkwood, Alejandro Pablo (Universidad de Concepción, 2014)Se determinó la composición botánica de la dieta del Cortarramas Phytotoma rutila en el desierto del Monte central, Argentina, mediante análisis microhistológico de las heces. En ambos sexos, la dieta estuvo compuesta por ...
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Navarrete, Lucas; Bozinovic Kuscevic, Francisco Esteban; Peña Villalobos, Isaac Jonathan; Contreras Ramos, Carolina Isabel; Sánchez Hernández, Juan C.; Newsome, Seth D.; Nespolo, Roberto F.; Sabat Kirkwood, Alejandro Pablo (Frontiers Media SA, 2021)Predictions indicate that birds worldwide will be affected by global warming and extreme climatic events which is especially relevant for passerines because the diurnal habits, small body size, and high mass-adjusted ...
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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 ...
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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 ...
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Rader, Jonathan; Dillon, Michael; Terry Chesser, R.; Sabat Kirkwood, Alejandro Pablo; Martínez del Río, Carlos (American Ornithologists’ Union, 2015)Cinclodes is an ecologically diverse genus of South American passerine birds and represents a case of continental adaptive radiation along multiple axes. We investigated morphological diversification in Cinclodes using ...
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Sepúlveda, Maritza; Sabat Kirkwood, Alejandro Pablo; Porter, Warren P.; Fariña, José Miguel (Pennsylvania State University, 2014)In lizards, one of the most important behavioral mechanisms to cope with spatial and temporal variations in thermal resources observed is activity time. The longer a lizard can maintain activity, the more time it has to ...
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Figueroa, D. P.; Sabat Kirkwood, Alejandro Pablo; Torres Contreras, Hugo; Veloso Iriarte, Claudio; Canals Lambarri, Mauricio (PERGAMON-ELSEVIER SCIENCE LTD, 2010-01-01)Small animals need efficient water conservation mechanisms for survival and reproduction, which is relevant for the spiders that have large book lungs with large respiratory surface. If lung evaporation is relevant to ...
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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. ...