Browsing by Author "Penna Varela, Mario"
Now showing items 1-20 of 28
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(2014)The efficiency of acoustic communication depends on the power generated by the sound source, the attributes of the environment across which signals propagate, the environmental noise and the sensitivity of the intended ...
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(2004)A variety of animals that communicate by sound emit signals from sites favoring their propagation, thereby increasing the range over which these sounds convey information. A different significance of calling sites has been ...
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(Frontiers Media S.A., 2017)© 2017 Wilczynski, Quispe, Muñoz and Penna.Arginine vasotocin (AVT) is the non-mammalian homolog of arginine vasopressin (AVP) and, like vasopressin, serves as an important modulator of social behavior in addition to its ...
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(2013)Invasive species are a leading cause of the current biodiversity decline, and hence examining the major traits favouring invasion is a key and long-standing goal of invasion biology. Despite the prominent role of ...
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(1992)Acetaldehyde (AcH) administered intravenously or into the right ventricle induces reflex bradycardia, hypotension, and apnea in the rat. The efferent pathway for this reflex is vagal and probably secondary to pulmonary J ...
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(Oxford University Press, 1983)Summary: We studied the effects of ethanol on total coronary resistance and on the resistance across the left ventricular wall in the isolated empty beating heart of the dog. The coronaries were perfused with homologous ...
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(SPRINGER, 2008-04)Thresholds for evoked vocal responses and thresholds of multiunit midbrain auditory responses to pure tones and synthetic calls were investigated in males of Pleurodema thaul, as behavioral thresholds well above auditory ...
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(Universidad de Chile, 2015)
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(Universidad de Chile, 2017)La estridulación es un mecanismo de comunicación vibroacústica generada por la fricción de dos estructuras rígidas. Se ha descrito este tipo de comunicación en varios grupos de insectos, entre ellos Reduviidae. Los hemípteros ...
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(British Herpetological Society, 2005-10)The variability of the advertisement calls of males from two Chilean populations of the leptodactylid frogs, Eupsophus calcaratus and E. roseus was studied and their calling behaviour further defined. Characteristic audio ...
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(Universisdad de Chile, 2016)En los distintos grupos de vertebrados, las variaciones en los niveles de hormonas sexuales esteroidales, como testosterona o estradiol, han mostrado tener un rol modulador en la estructura y fisiología del sistema ...
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(ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2005-09)Animals using sound communication have developed different strategies to overcome noise interference, but studies have rarely examined animals behaving in their natural environments. Males of the leptodactylid frog Eupsophus ...
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(Springer Verlag, 2016)© 2016, Springer-Verlag Berlin Heidelberg.Animals relying on acoustic signals for communication must cope with the constraints imposed by the environment for sound propagation. A resource to improve signal broadcast is the ...
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(Universidad de Chile, 1994)
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(2009)The advertisment calls of the recently described frog Eupsophus queulensis (Cycloramphidae) are analyzed, based on recordings of seven males. Eupsophus queulensis emits an advertisment call consisting of a harmonic-rich ...
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Heterospecific Vocal Interactions in a Frog from the Southern Temperate Forest, Batrachyla taeniata (2011)Animals using sound communication employ different strategies to overcome interferences from biotic and abiotic sources. However, interactions among acoustically active species have been studied to a very limited extent. ...
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(2007)Localization of a sound source is important for animals in mating contexts: females generally orient towards signalling males, and males can estimate the position and quality of potential rivals. In anurans, the effect of ...
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(Acoustical Soc. Amer., 2015)Animals obtain information about their social environment by means of communication signals, which provide relevant subtle cues for individual recognition. An important requisite for this process is the existence of ...
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(2011)We, herein, report evidence that wing fanning by the aphid parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) constitutes a courtship song. Complete removal of the forewings or only the distal half of them reduced ...
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(British Herpetological Society, 2015)© 2015, British Herpetological Society. All rights reserved. The chytrid fungus Batrachochytrium dendrobatidis (Bd) is a causal agent of infectious disease and decline of anuran populations inhabiting mountain systems in ...
