miércoles, 11 de septiembre de 2019
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n gray wolf comes from three captive lineages and cross-lineage wolves. By staying in captivity and being bred, the Mexican gray wolf species is being prot behaviors, i.e. repetitive and apparently purposeless motor behaviors. Examples of stereotypical behaviors include pacing, self-injury, route tracing and excessive self-grooming. These behaviors are associated with stress and lack of stimulation. Many who keep animals in captivity attempt to prevent or decrease stereotypical behavior by introducing stimuli, a process known as environmental enriing, hair plucking, or eye poking that may result in injuring oneself. Although its reported incidence is low, self-injurious behavior is observed across a range of primate species, especially when they experience social isolation in infancy. Self-bite involves biting one’s own body—typically the arms, legs, shoulders, or genitals. Threat bite involves biting one’s own body—typically the hand, wrist, or forearm—while staring at the observer, con specific, or mirror in a threatening manner. Eye poking is a behavior (widely observed in primates) that presses the knuckle or finger into the orbital space above the eye socket. Hair plucking is a jerking motion applied njurious behavior have been widely studied in captive primates; either social or nonsocial factors can trigger this type of behavior. Social factors include changes in group composition, stress, separation from the group, approaches by or aggression from members of other groups, conspecific male individuals nearby, separation from females, and removal from the group. Social isolation, particularly disruptions of early mother-rearing experiences, is an important risk factor. Studies have suggested that, although mother-reared rhesus macaques still exhibit some self-injurious behaviors, nursery-reared rhesus macaques are much more likely to self-abuse than mother-reared ones. Nonsocial factors include the presence of a small cut, a wound or irritant, cold weather, human contact, and frequent zoo visitors. For example, a study has shown that zoo visitor density positively correlates with the number of gorillas banging on the barrier, and that low zoo visitor density caused gorillas to behave in a more relaxed way. Captive animals often cannot escape the attention and disruption caused by the general public, and the stress resulting from this lack of environmental control may lead to an increased rate of self-injurrm, some animals exhibit harm towards others and internal psychological harm. This can be exhibited in various forms, such as Orca whales, which never have killed a human in the wild, killing two of its own trainers. Psychological tics can also be identified, ranging from swaying to head bobbing to pacing. Continuous inbreeding is also bringing out mental disadvantages, such as crossed eyes and infertnormal captive behaviors, including self-injurious behavior, can be successfully treated by pair housing. Pair housing provides a previously single-housed animal with a same-sex social partner; this method is especially effective with primates, which are widely known to be social animals. Social companionship provided by pair housing encourages social interaction, thus reducing abnormal and anxiety-related b
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