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Mostrando publicaciones 1-6 de 6
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Body-size variation across environmental gradients in an ectothermic organism: An intraspecific approach to ectogeographic patterns
Jara, Javier; Quiero, Andrés; Penna, Mario; Velásquez-Soto, Nelson (2018)Bergmann's rule states that endothermic species from cool areas tend to have larger body sizes than those from warm areas. Allen's rule maintains that endothermic species from cool environments should have shorter extremities ...
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Dissimilarities in auditory tuning in midwife toads of the genus Alytes (Amphibia: Anura)
Velásquez-Soto, Nelson; Penna, Mario; Bosch, Jaime (2015)The auditory sensitivity in three species of the anuran genus Alytes (Alytidae) was examined to determine patterns of intra- and interspecific variation, relating these measurements to behavioural preferences measured in ...
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Geographic variation in acoustic communication in anurans and its neuroethological implications
Velásquez-Soto, Nelson (2014)Geographic variation of traits may represent the first step for evolutionary divergence potentially leading to speciation. Signals are behavioral traits of particular interest for the study of variation at a geographic ...
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Individual and sex distinctiveness in bark calls of domestic chinchillas elicited in a distress context
León, Alex; Velásquez-Soto, Nelson; Penna, Mario; Delano, Paul; Moreno-Gómez, Felipe N. (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 larger ...
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Lack of phonotactic preferences of female frogs and its consequences for signal evolution
Velásquez-Soto, Nelson; Valdés, Jose Luis; Vásquez, Rodrigo A.; Penna, Mario (2015)Sexual selection is one of the main evolutionary forces that drive signal evolution. In previous studies, we have found out that males of Pleurodema thaul, a frog with an extensive latitudinal distribution in Chile, emits ...
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The acoustic adaptation hypothesis in a widely distributed South American frog: Southernmost signals propagate better
Velásquez-Soto, Nelson; Moreno-Gómez, Felipe N.; Brunetti, Enzo; Penna, Mario (2018)Animal communication occurs in environments that affect the properties of signals as they propagate from senders to receivers. We studied the geographic variation of the advertisement calls of male Pleurodema thaul individuals ...