Alejandra Márquez-Arias

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BACKGROUND The behavior of animals is modified by captivity. Environmental enrichment (EE) is a program designed to enhance the welfare of confined animals by providing them with a more stimulating background. This is carried out by the implementation of a series of activities that encourages them to present behaviors typical of their species, as well as(More)
Natural selection has resulted in the acoustic convergence of many animal vocalizations. During agonistic interactions vocalizations may vary depending on the role an individual plays in the interaction and on the severity of the attack. Motivation-structural rules describe how aggressors are thought to have evolved to use low-frequency vocalizations,(More)
We propose a method for capturing vocalizations that is designed to avoid some of the limiting factors found in traditional bioacoustical methods, such as the impossibility of obtaining continuous long-term registers or analyzing amplitude due to the continuous change of distance between the subject and the position of the recording system. Using Bluetooth(More)
SUMMARY Captive animals suffer from stress and lack of stimulation. Environmental enrichment (EE) provides them with a series of activities that encourages them to present species-specific behaviors. The objective of this work was to analyze the effect of an EE program in the behavior of a 7-spider monkey colony. It was expected that aggression, coprophilia(More)
Novelty-seeking temperament is defined as the reaction to novel or risk situations and objects, and by the global disposition to explore such stimuli. Our purpose was to describe and compare this trait in primates. For this purpose, a risk-taking Index, a curiosity index, and a novelty-seeking index were correlated to several biosocial variables using 22(More)
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