Browsing by Author "Ramírez Otárola, Natalia"
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Ramírez Otárola, Natalia; Sabat Kirkwood, Alejandro Pablo (SOC BIOLGIA CHILE, 2011)Digestive capabilities, such as the rates nutrient hydrolysis and absorption, may affect energy intake and ultimately feeding behavior. In birds, a high diversity in gut biochemical capabilities seems to support the existence ...
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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 ...
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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 ...
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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 ...