James Loy
Biographic Data
| ID | 83544 |
|---|---|
| NAME | James Loy |
| GIVEN NAMES | James |
| FAMILY NAME | Loy |
| SIGNATURE | LOY J |
| AFFILIATIONS | University of Rhode Island |
| VERIFIED | No |
| TOTAL WORKS | 17 |
| TOTAL CITATIONS | 19 |
| AUTHOR COUNT | 17 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1970 |
| LATEST PUBLICATION YEAR | 2001 |
| H-INDEX | 3 |
Beware the Library
Longitudinal study of dominance relations among captive patas monkeys
Eight and a half years of dominace relations within a captive group of patas monkeys were analyzed. It was found that matrilineal kinship significantly influenced individuals' ranks. In contrast, with the exception of certain intramatiline changes, increasingage had no predictable effect on overall rank, at least for females (this was untestable for males). Offspring typically challenged maternal dominance and in eight or twelve dyads, offspring …
Charles Darwin as primatologist
Charles Darwin made numerous references to the nonhuman primates in support of his evolutionary thesis. Most such references are found in The Descent of Man [1871] and The Expression of the Emotions in Man and Animals [1872], but other illuminating statements are scattered throughout Darwin's notebooks, letters, and lesser-known publications. As a research aid to modern primatologists, this paper presents a very nearly complete listing of Darwin'…
Longitudinal study of dominance relations among captive patas monkeys
A reanalysis of patas monkeys' “grimace and gecker” display and a discussion of their lack of formal dominance
Patas monkey copulations
Early, anecdotal reports of patas monkey ( Erythrocebus patas ) sexual behavior suggested that these primates were series‐mount copulators. In 1975, limited evidence was presented in favor of single‐mount copulations as the species‐typical pattern for patas. The situation remained confused, however, as indicated by statements in a recent review article. This paper adds to our knowledge of patas sexuality by presenting quantitative data on the cop…
Observations of parturition among captive patas monkeys ( Erythrocebus patas )
Six cases of labor and delivery by laboratory‐housed patas monkeys ( Erythrocebus patas ) are described. Five of the births occurred during the daytime, and the sixth occurred just after the usual “lights out” time. Although it was impossible to determine the actual onset of labor, the final 1.5–0.5 hr before parturition were observed in all cases. Throughout labor, females tended to begin a contraction every 2–4 min and contractions usually last…
An assessment of dominance and kinship among patas monkeys
Sociometrics of Macaca mulatta
The concept of the linear dominance hierarchy and a much less precise notion of a central/peripheral ordering of individuals have been prominent among the ideas about social organization of monkey groups. Although the latter has seldom been quantified, the ranks of individuals in the two orders are usually assumed to be correlated. This paper reports on a longitudinal study of a free‐ranging group of rhesus monkeys. The individual histories of pr…
Primate Paradigms
The grimace and gecker
Sexual harassment among captive patas monkeys (Erythrocebus patas)
Linguistics
Behavior of an all‐juvenile group of rhesus monkeys
The behavior and organization of a group of 33 juvenile rhesus monkeys removed from a single free‐ranging group were found to parallel closely intact rhesus social groups. Dominance ranking among the juveniles was 95% predictable from prior knowledge of mothers' ranks. Grooming, sitting close together, sitting touching, and play were found to occur much more frequently between matrilineal kin than expected from random selection of partner. Some e…
Physical Anthropology
Estrous behavior of free-ranging rhesus monkeys (Macaca mulatta)
Behavioral responses of free‐ranging rhesus monkeys to food shortage
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 mo…
Behavioral responses of free‐ranging rhesus monkeys to food shortage
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 mo…
Sociometrics of Macaca mulatta
The concept of the linear dominance hierarchy and a much less precise notion of a central/peripheral ordering of individuals have been prominent among the ideas about social organization of monkey groups. Although the latter has seldom been quantified, the ranks of individuals in the two orders are usually assumed to be correlated. This paper reports on a longitudinal study of a free‐ranging group of rhesus monkeys. The individual histories of pr…
Behavior of an all‐juvenile group of rhesus monkeys
The behavior and organization of a group of 33 juvenile rhesus monkeys removed from a single free‐ranging group were found to parallel closely intact rhesus social groups. Dominance ranking among the juveniles was 95% predictable from prior knowledge of mothers' ranks. Grooming, sitting close together, sitting touching, and play were found to occur much more frequently between matrilineal kin than expected from random selection of partner. Some e…
A reanalysis of patas monkeys' “grimace and gecker” display and a discussion of their lack of formal dominance
Behavioral responses of free‐ranging rhesus monkeys to food shortage
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 mo…
Estrous behavior of free-ranging rhesus monkeys (Macaca mulatta)
Physical Anthropology
Behavior of an all‐juvenile group of rhesus monkeys
The behavior and organization of a group of 33 juvenile rhesus monkeys removed from a single free‐ranging group were found to parallel closely intact rhesus social groups. Dominance ranking among the juveniles was 95% predictable from prior knowledge of mothers' ranks. Grooming, sitting close together, sitting touching, and play were found to occur much more frequently between matrilineal kin than expected from random selection of partner. Some e…
Sexual harassment among captive patas monkeys (Erythrocebus patas)
Linguistics
The grimace and gecker
Primate Paradigms
An assessment of dominance and kinship among patas monkeys
Sociometrics of Macaca mulatta
The concept of the linear dominance hierarchy and a much less precise notion of a central/peripheral ordering of individuals have been prominent among the ideas about social organization of monkey groups. Although the latter has seldom been quantified, the ranks of individuals in the two orders are usually assumed to be correlated. This paper reports on a longitudinal study of a free‐ranging group of rhesus monkeys. The individual histories of pr…
Patas monkey copulations
Early, anecdotal reports of patas monkey ( Erythrocebus patas ) sexual behavior suggested that these primates were series‐mount copulators. In 1975, limited evidence was presented in favor of single‐mount copulations as the species‐typical pattern for patas. The situation remained confused, however, as indicated by statements in a recent review article. This paper adds to our knowledge of patas sexuality by presenting quantitative data on the cop…
Observations of parturition among captive patas monkeys ( Erythrocebus patas )
Six cases of labor and delivery by laboratory‐housed patas monkeys ( Erythrocebus patas ) are described. Five of the births occurred during the daytime, and the sixth occurred just after the usual “lights out” time. Although it was impossible to determine the actual onset of labor, the final 1.5–0.5 hr before parturition were observed in all cases. Throughout labor, females tended to begin a contraction every 2–4 min and contractions usually last…
A reanalysis of patas monkeys' “grimace and gecker” display and a discussion of their lack of formal dominance
Longitudinal study of dominance relations among captive patas monkeys
Eight and a half years of dominace relations within a captive group of patas monkeys were analyzed. It was found that matrilineal kinship significantly influenced individuals' ranks. In contrast, with the exception of certain intramatiline changes, increasingage had no predictable effect on overall rank, at least for females (this was untestable for males). Offspring typically challenged maternal dominance and in eight or twelve dyads, offspring …
Charles Darwin as primatologist
Charles Darwin made numerous references to the nonhuman primates in support of his evolutionary thesis. Most such references are found in The Descent of Man [1871] and The Expression of the Emotions in Man and Animals [1872], but other illuminating statements are scattered throughout Darwin's notebooks, letters, and lesser-known publications. As a research aid to modern primatologists, this paper presents a very nearly complete listing of Darwin'…
Longitudinal study of dominance relations among captive patas monkeys
Beware the Library
Biology (13 works) · Primate Behavior and Ecology (13 works) · Psychology (11 works) · Animal Behavior and Reproduction (8 works) · Zoology (8 works) · Animal Vocal Communication and Behavior (7 works) · Animal ecology (5 works) · Computer Science (5 works) · Dominance (genetics) (5 works) · Ecology (5 works)