Ramon J Rhine
Biographic Data
| ID | 1660628 |
|---|---|
| NAME | Ramon J Rhine |
| GIVEN NAMES | Ramon J |
| FAMILY NAME | Rhine |
| SIGNATURE | RHINE R J |
| AFFILIATIONS | University of California, Riverside |
| VERIFIED | No |
| TOTAL WORKS | 39 |
| TOTAL CITATIONS | 73 |
| WORKS AS AUTHOR | 39 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1964 |
| LATEST PUBLICATION YEAR | 2000 |
| H-INDEX | 5 |
Lifetime reproductive success, longevity, and reproductive life history of female yellow baboons (Papio cynocephalus)of Mikumi National Park, Tanzania
The relationship between longevity and lifetime reproductive success (LRS) was studied in free-ranging female baboons of Mikumi National Park, Tanzania. A severe population decline occurred between the 12th and 20th years of the study. The total sample consisted of 72 females born and reaching adulthood before the start of the population decline. There were 27 females who were adult at the start of the study and 45 who became adult within the 12 …
Logical problems and misunderstandings in “problems with dimensionless measurement models of synchrony in biological systems”
A model for the standardized measurement of synchrony in behavioral or biological states was proposed for use in comparative analyses of synchrony's adaptive significance. A recent critique attempts to discredit dimensionless (unitless) or standardized measures of synchrony in general and the proposed model in particular. Although the critique helps define and sharpen thinking about the measurement of synchrony and makes some well-taken points, i…
Validity of an estimator of reproductive success
Lifetime reproductive success is a major component of individual fitness and a central dependent variable for the study of natural selection. For long-lived animals, such as apes or baboons, assessment of lifetime reproductive success requires observations of identified individuals in continuous, long-term studies from which it is difficult and often impossible to obtain an adequate sample of necessary reproductive and survival data. This situati…
Validity of an estimator of reproductive success
Lifetime reproductive success is a major component of individual fitness and a central dependent variable for the study of natural selection. For long-lived animals, such as apes or baboons, assessment of lifetime reproductive success requires observations of identified individuals in continuous, long-term studies from which it is difficult and often impossible to obtain an adequate sample of necessary reproductive and survival data. This situati…
Criteria of reproductive success
To determine reproductive success, it is necessary for the researcher to specify a criterion of success, such as the number of a parent's offspring living to the age of reproduction. A measurement model, which includes the researcher's choice of criterion, has been proposed to estimate the lifetime reproductive success (R) of long-lived animals from complete or incomplete knowledge of the reproductive life histories of mothers and the survival fa…
Quantifying synchrony among reproductive or other states
Synchrony among reproductive or other states is a widespread phenomenon of significance in evolutionary theory. A model is presented for use in the measurement of the degree of synchrony in any set of behavioral or biological states, such as menstrual cycling, pregnancy, or lactation. At a given time, maximum group synchrony occurs when all members of a group are in a single state, minimum synchrony occurs when equal numbers are in all states, an…
A Generalizability Analysis of Subjective Personality Assessments in the Stumptail Macaque and the Zebra Finch
Psychometric findings are reported from two studies concerning the construct validity, temporal stability, and interrater reliability of the latent common factors underlying subjective assessments by human raters of personality traits in two nonhuman animal species: (a) the Stumptail macaque (Maraca arctoides), a cercopithecine monkey; and (b) the Zebra finch (Poephila guttata), an estrildid songbird. Because most theories of animal personality h…
A twenty‐one‐year study of maternal dominance and secondary sex ratio in a colony group of stumptailed macaques ( Macaca arctoides )
Trivers and Willard's theory of sex‐ratio adjustment, as applied to cercopithecines, predicts that the ratio of male to female offspring will be greater for dominant than for subordinate mothers. A local‐resourcexyhcompetition hypothesis predicts the reverse. To date, results from several species of macaque are inconsistent and often not statistically significant. In this 21 year study, a colony group of stumptailed macaques is added to the speci…
Estimating reproductive success of primates and other animals with long and incompletely known reproductive life spans
Lifetime reproductive success is difficult to obtain for adequate numbers of wild, long‐lived animals because of incomplete knowledge of reproductive life histories and fates of offspring. A procedure is described that provides a standard estimate of lifetime reproductive success from either complete or incomplete reproductive life spans. For this procedure, reproductive success is defined as the following ratio: the number of offspring living to…
Secondary sex ratio and maternal dominance rank among wild yellow baboons ( Papio cynocephalus ) of Mikumi National Park, Tanzania
The Trivers and Willard model predicts that offspring of dominant mothers will be biased toward males and offspring of subordinate mothers towards females, whereas a local‐resource‐competition hypothesis predicts the reverse. Available data bearing upon these alternative predictions are inconsistent. It has been suggested that the local‐resource‐competition hypothesis will predominate when resources are scarce, and the Trivers‐Willard hypothesis …
Plant feeding of yellow baboons (Papio cynocephalus) in Mikumi National Park, Tanzania, and the relationship between seasonal feeding and immature survival
A twenty‐year study of long‐term and temporary dominance relations among stumptailed macaques ( Macaca arctoides )
Consistent individual differences in long‐term dominance are a basic underlying assumption of hypotheses linking dominance and reproductive success. Long‐term and temporary dominance of a colony group of stumptailed macaques was studied for 20 years. There were two variously constituted groups for the first 4 years and a single group for the last 16. Stumptails displayed the matrilineal dominance organization found for several other cercopithecin…
Plant feeding of yellow baboons (Papio cynocephalus) in Mikumi national park, Tanzania, and the relationship between seasonal feeding and immature survival
Eight‐year study of social and ecological correlates of mortality among immature baboons of Mikumi National Park, Tanzania
The Cox Proportional Hazards Regression Model was used to examine ecological and sociodemographic correlates of mortality among 164 immature yellow baboons born over an 8‐year period at Mikumi National Park, Tanzania. Ecological correlates were derived from seasonal rainfall. Mortality was lowest for immatures born during the late rainy season, when it was likely that nourishment for pregnant and lactating females was greatest. High mortality was…
Reactions to fear as a proximate factor in the sociospatial organization of baboon progressions
The objective of this study was to test the hypothesis that fearfulness is a key proximate factor determining the nonrandom order repeatedly reported for baboon troops progressing from one location to another. According to this hypothesis, the most vulnerable troop members, the walking immatures, are expected in most circumstances to be cautious and to keep others between themselves and potential danger. The more confident adults, especially larg…
Insect and meat eating among infant and adult baboons ( Papio cynocephalus ) of Mikumi National Park, Tanzania
It has been suggested that baboon predation upon vertebrates may tend to peak in the dry season because insect food is then less available, and that males obtain animal nutrients primarily from vertebrates whereas other troop members obtain them primarily from invertebrates. The development of meat and insect eating by 22 male and 24 female infants studied for 25 months was compared with that of 18 male and 46 female adults studied for 37 months.…
Progressions of adult male chacma baboons (Papio ursinus) in the moremi wildlife reserve
Weaning of free-ranging infant baboons (Papio cynocephalus) as indicated by one-zero and instantaneous sampling of feeding
The waning of dependence in infant free‐ranging yellow baboons ( Papio cynocephalus ) of Mikumi National Park
Development toward independence during the early years of baboon life is reflected in the infant's transition from riding on its mother to walking on its own during progressions from one location to another. This transition was studied during the first year of life in 55 infants from two differently sized troops living in Mikumi National Park, Tanzania. There was a nearly linear transition in the first year from almost 100% ventral riding to almo…
Some reproductive parameters of stumptailed macaques (Macaca arctoides)
Comparability of methods used in the sampling of primate behavior
Two measures of a behavior are defined as comparable if one is predictable from the other. The comparability of one‐zero, instantaneous, actual‐frequency, and actual‐duration sampling was investigated using a Monte Carlo simulation to extend the range of sampling intervals beyond those ordinarily found in the literature. Several combinations of bout time, rate of response, and observation interval were simulated. Comparability between one‐zero or…
Venipuncture and vaginal swabbing in an enclosure occupied by a mixed‐sex group of stumptailed macaques ( Macaca arctoides )
Procedures are described for vaginal swabbing and venipuncture in a gang‐caged, mixed‐sex group of stumptailed macaques. The design of the gang cages facilitated venipuncture and swabbing which were done without undue disturbance of the vivarium routine, without seriously stressing colony members, and without interfering with the monkeys' established social relationships
Movement patterns of yellow baboons ( Papio cynocephalus )
Age‐sex differences in the sociospatial positioning of progressing baboon troops have been postulated as an important, protective aspect of baboon adaptation to a terrestrial existence. The protection theory is an ultimate hypothesis which can be disproven by showing that the postulated age‐sex positioning fails to occur. Alternatively, confidence in the protection theory can be increased if the postulated positioning persists across several troo…
Properties of one-zero scores in observational studies of primate social behavior
The brief survival of free-ranging baboon infants (Papio cynocephalus) after separation from their mothers
Ego-involvement, discrepancy, source credibility, and attitude change
The 1964 presidential election and curves of information seeking and avoiding
Insect and meat eating among infant and adult baboons ( Papio cynocephalus ) of Mikumi National Park, Tanzania
It has been suggested that baboon predation upon vertebrates may tend to peak in the dry season because insect food is then less available, and that males obtain animal nutrients primarily from vertebrates whereas other troop members obtain them primarily from invertebrates. The development of meat and insect eating by 22 male and 24 female infants studied for 25 months was compared with that of 18 male and 46 female adults studied for 37 months.…
Some problems in dissonance theory research on information selectivity
Movement patterns of yellow baboons ( Papio cynocephalus )
Age‐sex differences in the sociospatial positioning of progressing baboon troops have been postulated as an important, protective aspect of baboon adaptation to a terrestrial existence. The protection theory is an ultimate hypothesis which can be disproven by showing that the postulated age‐sex positioning fails to occur. Alternatively, confidence in the protection theory can be increased if the postulated positioning persists across several troo…
The brief survival of free-ranging baboon infants (Papio cynocephalus) after separation from their mothers
Movement patterns of yellow baboons ( Papio cynocephalus )
According to DeVore and Washburn's protection theory of the spatial organization of moving baboon troops, walking infants, which are among the most vulnerable and least self‐sufficient of all troop members, should tend to occupy the troop's center. The protection theory is an ultimate hypothesis from which persistently recurring behavior is expected. Two troops living in Mikumi National Park, Tanzania, were compared with troops studied at other l…
Weaning of free-ranging infant baboons (Papio cynocephalus) as indicated by one-zero and instantaneous sampling of feeding
Plant feeding of yellow baboons (Papio cynocephalus) in Mikumi national park, Tanzania, and the relationship between seasonal feeding and immature survival
Progressions of adult male chacma baboons (Papio ursinus) in the moremi wildlife reserve
Engineering Design and Social Value
Because of the exponential growth of science and technology, the engineering student cannot hope to take more than a small sub-set of the many engineering courses available to him. The question often arises about the degree to which engineering students should find room in their cramped study schedule for work in the humanities, the social sciences, and other nonengineering topics. The engineer is faced with making value decisions in the realisti…
The 1964 presidential election and curves of information seeking and avoiding
Some problems in dissonance theory research on information selectivity
Ego-involvement, discrepancy, source credibility, and attitude change
Attitude change, commitment, and ego involvement
Interaction patterns of two newly formed groups of stumptail macaques (Macaca arctoides)
Changes in the social structure of two groups of stumptail macaques (Macaca arctoides)
The Effect of Incredulity upon Evaluation of the Source of a Communication
Variation and consistency in the social behavior of two groups of stumptail macaques (Macaca arctoides)
Social development of stumptail macaques (Macaca arctoides)
An empirical comparison of one-zero, focal-animal, and instantaneous methods of sampling spontaneous primate social behavior
Social development of stumptail macaques (Macaca arctoides)
Social development of stumptail macaques (Macaca arctoides)
Properties of one-zero scores in observational studies of primate social behavior
The brief survival of free-ranging baboon infants (Papio cynocephalus) after separation from their mothers
Movement patterns of yellow baboons ( Papio cynocephalus )
According to DeVore and Washburn's protection theory of the spatial organization of moving baboon troops, walking infants, which are among the most vulnerable and least self‐sufficient of all troop members, should tend to occupy the troop's center. The protection theory is an ultimate hypothesis from which persistently recurring behavior is expected. Two troops living in Mikumi National Park, Tanzania, were compared with troops studied at other l…
Movement patterns of yellow baboons ( Papio cynocephalus )
Age‐sex differences in the sociospatial positioning of progressing baboon troops have been postulated as an important, protective aspect of baboon adaptation to a terrestrial existence. The protection theory is an ultimate hypothesis which can be disproven by showing that the postulated age‐sex positioning fails to occur. Alternatively, confidence in the protection theory can be increased if the postulated positioning persists across several troo…
Venipuncture and vaginal swabbing in an enclosure occupied by a mixed‐sex group of stumptailed macaques ( Macaca arctoides )
Procedures are described for vaginal swabbing and venipuncture in a gang‐caged, mixed‐sex group of stumptailed macaques. The design of the gang cages facilitated venipuncture and swabbing which were done without undue disturbance of the vivarium routine, without seriously stressing colony members, and without interfering with the monkeys' established social relationships
Some reproductive parameters of stumptailed macaques (Macaca arctoides)
Comparability of methods used in the sampling of primate behavior
Two measures of a behavior are defined as comparable if one is predictable from the other. The comparability of one‐zero, instantaneous, actual‐frequency, and actual‐duration sampling was investigated using a Monte Carlo simulation to extend the range of sampling intervals beyond those ordinarily found in the literature. Several combinations of bout time, rate of response, and observation interval were simulated. Comparability between one‐zero or…
The waning of dependence in infant free‐ranging yellow baboons ( Papio cynocephalus ) of Mikumi National Park
Development toward independence during the early years of baboon life is reflected in the infant's transition from riding on its mother to walking on its own during progressions from one location to another. This transition was studied during the first year of life in 55 infants from two differently sized troops living in Mikumi National Park, Tanzania. There was a nearly linear transition in the first year from almost 100% ventral riding to almo…
Progressions of adult male chacma baboons (Papio ursinus) in the moremi wildlife reserve
Weaning of free-ranging infant baboons (Papio cynocephalus) as indicated by one-zero and instantaneous sampling of feeding
Insect and meat eating among infant and adult baboons ( Papio cynocephalus ) of Mikumi National Park, Tanzania
It has been suggested that baboon predation upon vertebrates may tend to peak in the dry season because insect food is then less available, and that males obtain animal nutrients primarily from vertebrates whereas other troop members obtain them primarily from invertebrates. The development of meat and insect eating by 22 male and 24 female infants studied for 25 months was compared with that of 18 male and 46 female adults studied for 37 months.…
Reactions to fear as a proximate factor in the sociospatial organization of baboon progressions
The objective of this study was to test the hypothesis that fearfulness is a key proximate factor determining the nonrandom order repeatedly reported for baboon troops progressing from one location to another. According to this hypothesis, the most vulnerable troop members, the walking immatures, are expected in most circumstances to be cautious and to keep others between themselves and potential danger. The more confident adults, especially larg…
Primate Behavior and Ecology (31 works) · Biology (28 works) · Animal Behavior and Reproduction (23 works) · Animal Vocal Communication and Behavior (18 works) · Demography (18 works) · Psychology (18 works) · Animal ecology (14 works) · Ecology (13 works) · Mathematics (13 works) · Social Psychology (12 works)