Showing papers on "Primate published in 1970"
TL;DR: Comparisons made between Cayo Santiago and other primate groups under analogous situations reveal similar responses to food shortage.
Abstract: During early July 1968, a severe food shortage occurred on Cayo Santiago, an island colony of free-ranging rhesus monkeys (Macaca mulatta). The food shortage produced striking changes in the behavior of the monkeys. Within the one social group intensively studied, the total frequencies of grooming, play and fights decreased significantly; the frequency of matings also dropped; body contact, displacements by other groups, and non-displacement movements decreased, but not in statistically significant amounts. Changes in the percentage of total grooming attributable to related and unrelated monkeys reflected the stability of the rhesus matriline. Comparisons made between Cayo Santiago and other primate groups under analogous situations reveal similar responses to food shortage.
89 citations
TL;DR: South American monkeys should provide an easily accessible experimental system for the study of purine metabolism in a species closely related to man as exemplified by fasting-induced hyperuricemia.
Abstract: 1
Several genera of New World monkeys have high uric acid concentrations in serum and urine comparable to man and the higher apes Like man these animals lack urate oxidase activity in liver tissue The purine metabolism of these non-human primates appears to be similar to that of man as exemplified by fasting-induced hyperuricemia These South American monkeys should provide an easily accessible experimental system for the study of purine metabolism in a species closely related to man
2
Old World monkeys and prosimians have low uric acid concentrations in serum and urine The urate oxidase activity of prosimian liver is remarkably stable whereas that of Old World monkeys was found to be quite unstable, a probable reflection of the gradual degeneration of this enzyme in primate phylogenesis
67 citations
TL;DR: Greater galago, slow loris, and owl monkey were measured as response to novel objects; animals could choose between remaining on the familiar, home cage side or entering the novel side which contained six manipulable objects.
Abstract: Exploratory behavior, defined as response to novel objects, was measured in representatives of three lower primate species -greater galago, slow loris, and owl monkey. Test apparatus was a two-compartment cage; animals could choose between remaining on the familiar, home cage side or entering the novel side which contained six manipulable objects. Galagos spent the most time in contact with objects and the least time in retreat to the home cage. Owl monkeys and lorises were less responsive to the test objects but, while lorises actively explored spatial features of the new environment, owl monkeys remained inactive. For all species: i) the greatest degree of responsiveness to novel objects occurred during the first 5 min. of the 15-min. session. 2) initial object contacts were made with the nose; these were brief and were followed by lengthier contacts with mouth and hands. 3) occurrence of the various behavioral categories (object contacts, active responses, inactive responses, and retreat) followed a consistent pattern.
28 citations
TL;DR: Patterned string problems were presented in a random order to three squirrel monkeys and the performance of Ss indicated that a response-position preference had been established, which was based on the location of the reward.
Abstract: Patterned string problems were presented in a random order to three squirrel monkeys. The performance of Ss indicated that a response-position preference had been established, which was based on the location of the reward. Squirrel monkeys were found to be inferior in solution of string problems when compared to other primate species. The relative difficulty of specific string problems that had been established for the rhesus monkey appeared to be different for the squirrel monkey.
4 citations