Estudio conductual de una manada de dos especies de primates del género lagothrix en semicautiverio del centro de rescate yanacocha

The intervention of humans in primate’s habitat has resulted in the loss of forests, so that animals change their habitual behavior patterns, which is, human activities are consider a threat to these species. Ecuador, a mega diverse country with a great variety of fauna, it generates problems due to unscrupulous people who capture animals species to traffic and exploit them so they destroy ecosystems, like Lagothrix lagotricha and Lagothrix poeppigii which are on inescapable extinction way. The study of primate’s behavior of the genus Lagothrix, species lagotricha and poeppigii has the importance to obtaining information about this vital activity, which guarantees animal’s reactivity in their relation life and adaptive capacity to the environment. The need to study these ethological aspects in semi-captivity live conditions is a way of compensating the danger that these species of monkey may have of disappearing due to hunting and indiscriminate captivity. The objective of this work was to characterize the behavior of a herd of two species of primates of the genus Lagothrix in semi-captivity conditions of the "Yanacocha" Rescue Center, Puyo city, province of Pastaza. The behavioral study was develop in a mixed herd of animals of different age groups, juveniles and adults. The filmic record of behavioral activity of animals was made during three consecutive days of photoperiod in the months of October and December of 2017; the video cameras were installed around the perimeter of the islands, which guaranteed no environmental alterations or physical manipulations of the animals so they kept their emotional stability and relationship with the environment all time. Six forms and different aptitudes of behavior were studied. The animals received a diet twice a day, 9:00 - 10:00 am and 3:00 - 4:00 pm; in both the diet was varied. The average environmental conditions were 24.70C of temperature and 89.8% of relative humidity. Contingency tables and non-parametric chi-square tests were performed and T test was performed for two independent samples; in both tests a reliability of 95% and a level of significance of 5% (0.05) were used. The results show that behavioral activity of the herd, in decreasing order during the photoperiod of circadian time regardless of the species, included as main activity the feeding behavior, followed by rest, displacement without apparent objective as a way of maintaining relationship with the environment, play behavior and, to a lesser extent, hygienic and social behavior. In these species preference for: resting in a raised house reaffirmed that they are arboreal specie, displacement without defined objectives through the "action of walking" in the soil, ingestion of foods in quadruped position, although on several occasions in a bipedal posture, including seated position, and ingestion of water using a hand as a bowl and sometimes directly with the mouth. The herd presented a well-structured and defined dominance order from the male leader, which allowed social stability and tranquility in their relationships. L. lagotricha has tendency to be more sociable, which a similar pattern in function of medias in time and frequency of game behavior and although the mutual grooming was slightly superior to the individual one; in this specie, individual frequency was higher showing a greater tendency to hygienic maintenance of the body.

• Autore principale: Jimbo Suárez, Mirian Stefany (author)
• Natura: bachelorThesis
• Pubblicazione: 2018
• Soggetti: MANADA; CONDUCTA; RELACIONES; SOCIALES
• Accesso online: http://repositorio.utmachala.edu.ec/handle/48000/12421