Mary S Mcdonald Pavelka
Biographic Data
| ID | 107801 |
|---|---|
| NAME | Mary S Mcdonald Pavelka |
| GIVEN NAMES | Mary S Mcdonald |
| FAMILY NAME | Pavelka |
| SIGNATURE | PAVELKA M S M |
| AFFILIATIONS | University of Calgary |
| ORCID | 0009-0000-2195-4100 |
| VERIFIED | Yes |
| TOTAL WORKS | 25 |
| TOTAL CITATIONS | 73 |
| AUTHOR COUNT | 25 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1990 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 4 |
Sex differences in the acoustic structure of terrestrial alarm calls in vervet monkeys ( Chlorocebus pygerythrus )
The alarm calls of vervet monkeys ( Chlorocebus pygerythrus ) have been the subject of considerable focus by researchers, owing primarily to the purported referential qualities of different alarm call types. With this focus on reference, acoustic variation among calls elicited by the same range of predators has typically been overlooked. Specifically, at least one type of alarm call—the terrestrial alarm—was described over 50 years ago as being a…
Monkeys Swimming Across Rivers Refine Questions About the Riverine Barrier Hypothesis
The Riverine Barrier Hypothesis posits that species distributions are limited by large rivers acting as geographical barriers. Accordingly, large rivers have long been thought to be a major driver of the extensive speciation and high levels of biodiversity among platyrrhine primates in South and Central America. Direct observations of river crossings provide evidence that complements studies of genetic diversity that can together shed new light o…
Seasonal and sex differences in the fission–fusion dynamics of spider monkeys (Ateles geoffroyi yucatanensis) in Belize
Sex Differences in the Use of Whinny Vocalizations in Spider Monkeys (Ateles geoffroyi)
Color Vision Variation as Evidenced by Hybrid L/M Opsin Genes in Wild Populations of Trichromatic Alouatta New World Monkeys
Platyrrhine (New World) monkeys possess highly polymorphic color vision owing to allelic variation of the single-locus L/M opsin gene on the X chromosome. Most species consist of female trichromats and female and male dichromats. Howlers (genus Alouatta ) are an exception; they are considered to be routinely trichromatic with L and M opsin genes juxtaposed on the X chromosome, as seen in catarrhine primates (Old World monkeys, apes, and humans). …
Assessing the Occurrence of Sexual Segregation in Spider Monkeys (Ateles geoffroyi yucatanensis), Its Mechanisms and Function
The Role of Minerals in Food Selection in a Black Howler Monkey ( Alouatta Pigra ) Population in Belize Following a Major Hurricane
As plants may contain low levels of some minerals including sodium, copper, and phosphorous, herbivores may become deficient in these nutrients. In 2001, H urricane I ris hit the M onkey R iver F orest in B elize causing substantial damage to the food supply of the black howler monkey population ( Alouatta pigra ) living there. This included an 18‐month absence in fruit production and a complete loss of figs that are high in calcium. In this arti…
Do Adult Male Spider Monkeys (Ateles geoffroyi) Preferentially Handle Male Infants
Sources of variation in fecal cortisol levels in howler monkeys in belize
High cortisol levels are known to cause low fecundity and increased mortality; thus, the prospect of using cortisol as a measure of population health is an exciting one. However, because so many factors can interact to influence cortisol release, it can be difficult to interpret what exactly is creating changes to cortisol levels. This study investigates variation in fecal cortisol levels in a population of black howlers ( Alouatta pigra ) from 3…
Population Size and Characteristics of Alouatta pigra Before and After a Major Hurricane
Feeding Competition and Group Size in Alouatta pigra
Group size in folivorous primates: Ecological constraints and the possible influence of social factors
Diet and activity in black howler monkeys ( Alouatta pigra ) in southern Belize: Does degree of frugivory influence activity level?
Observed case of infanticide committed by a resident male central American black howler monkey ( Alouatta pigra )
Although infanticide has been witnessed in other species of howler monkey, and has been inferred for Alouatta pigra , an observed case of infanticide has not previously been recorded for this species. Here we describe the killing of a 2‐week‐old infant by the resident male of a small social group in southern Belize. The infanticide was witnessed as part of an intensive observational study that began in January 2003. The male was known to have res…
Population Reduction and Social Disorganization in Alouatta pigra Following a Hurricane
Change versus Improvement over Time and Our Place in Nature
Time plays a powerful but often unrecognized role in our thinking about nature and our place in it. Evolution, which provides the framework for all that biological anthropologists do, means change over time. Natural selection, the mechanism of evolutionary change, is routinely imbued with principles of progress that imply improvement over time. Is natural selection inherently progressive, such that the evolution of a highly complex and intelligen…
Is There Adaptive Value to Reproductive Termination in Japanese Macaques? A Test of Maternal Investment Hypotheses
Comparative Primate Socioecology
Comparative Primate Socioecology. P. C. Lee. ed. New York: Cambridge University Press, 1999. 412 pp
Reproductive termination in female Japanese monkeys: A comparative life history perspective
This study explores the question of reproductive termination (loss of reproductive ability) in female Japanese macaques (Macaca fuscata) from the Arashiyama West (Texas) troop. We used a large sample of completed lives to identify reproductively terminated female Japanese macaques and to consider reproductive termination in Japanese macaques from a comparative life history perspective, which permits meaningful comparisons to be made with human fe…
The behavior of peripheral males during the mating season inMacaca fuscata
The nonhuman primate perspective: Old age, kinship and social partners in a monkey society
Biological Anthropology: Coalitions and Alliances in Humans and Other Animals . Alexander H. Harcourt and Frans B. M. de Waal , eds
Menopause: A comparative life history perspective
As a life history characteristic of human females, menopause is universal, it occurs halfway through the maximum lifespan of the species, and it consistently occurs at approximately age 50 in different populations. Menopause is fundamentally distinct from the reproductive senescence that has been described for a very small number of very old individual alloprimates. Menopause is not a recent historical artifact. As a species universal showing lit…
Sociability in Old Female Japanese Monkeys: Human versus Nonhuman Primate Aging
Over a period of 20 months, 18 aged and 22 non-aged semi-free ranging female Japanese monkeys were observed, and a total of 440 hours of focal animal data were collected. The goal of the study was to investigate the reported pattern of disengagement in old female monkeys. For each subject female, two sociability scores were calculated: the total number of other animals with whom time was spent in affiliative social interaction, and the total amou…
Do old female monkeys have a specific social role?
Menopause: A comparative life history perspective
As a life history characteristic of human females, menopause is universal, it occurs halfway through the maximum lifespan of the species, and it consistently occurs at approximately age 50 in different populations. Menopause is fundamentally distinct from the reproductive senescence that has been described for a very small number of very old individual alloprimates. Menopause is not a recent historical artifact. As a species universal showing lit…
Population Reduction and Social Disorganization in Alouatta pigra Following a Hurricane
Population Size and Characteristics of Alouatta pigra Before and After a Major Hurricane
Change versus Improvement over Time and Our Place in Nature
Time plays a powerful but often unrecognized role in our thinking about nature and our place in it. Evolution, which provides the framework for all that biological anthropologists do, means change over time. Natural selection, the mechanism of evolutionary change, is routinely imbued with principles of progress that imply improvement over time. Is natural selection inherently progressive, such that the evolution of a highly complex and intelligen…
Feeding Competition and Group Size in Alouatta pigra
Assessing the Occurrence of Sexual Segregation in Spider Monkeys (Ateles geoffroyi yucatanensis), Its Mechanisms and Function
Is There Adaptive Value to Reproductive Termination in Japanese Macaques? A Test of Maternal Investment Hypotheses
Sociability in Old Female Japanese Monkeys: Human versus Nonhuman Primate Aging
Over a period of 20 months, 18 aged and 22 non-aged semi-free ranging female Japanese monkeys were observed, and a total of 440 hours of focal animal data were collected. The goal of the study was to investigate the reported pattern of disengagement in old female monkeys. For each subject female, two sociability scores were calculated: the total number of other animals with whom time was spent in affiliative social interaction, and the total amou…
Color Vision Variation as Evidenced by Hybrid L/M Opsin Genes in Wild Populations of Trichromatic Alouatta New World Monkeys
Platyrrhine (New World) monkeys possess highly polymorphic color vision owing to allelic variation of the single-locus L/M opsin gene on the X chromosome. Most species consist of female trichromats and female and male dichromats. Howlers (genus Alouatta ) are an exception; they are considered to be routinely trichromatic with L and M opsin genes juxtaposed on the X chromosome, as seen in catarrhine primates (Old World monkeys, apes, and humans). …
Do Adult Male Spider Monkeys (Ateles geoffroyi) Preferentially Handle Male Infants
Comparative Primate Socioecology
Comparative Primate Socioecology. P. C. Lee. ed. New York: Cambridge University Press, 1999. 412 pp
Do old female monkeys have a specific social role?
Menopause: A comparative life history perspective
As a life history characteristic of human females, menopause is universal, it occurs halfway through the maximum lifespan of the species, and it consistently occurs at approximately age 50 in different populations. Menopause is fundamentally distinct from the reproductive senescence that has been described for a very small number of very old individual alloprimates. Menopause is not a recent historical artifact. As a species universal showing lit…
Sociability in Old Female Japanese Monkeys: Human versus Nonhuman Primate Aging
Over a period of 20 months, 18 aged and 22 non-aged semi-free ranging female Japanese monkeys were observed, and a total of 440 hours of focal animal data were collected. The goal of the study was to investigate the reported pattern of disengagement in old female monkeys. For each subject female, two sociability scores were calculated: the total number of other animals with whom time was spent in affiliative social interaction, and the total amou…
Biological Anthropology: Coalitions and Alliances in Humans and Other Animals . Alexander H. Harcourt and Frans B. M. de Waal , eds
The nonhuman primate perspective: Old age, kinship and social partners in a monkey society
The behavior of peripheral males during the mating season inMacaca fuscata
Reproductive termination in female Japanese monkeys: A comparative life history perspective
This study explores the question of reproductive termination (loss of reproductive ability) in female Japanese macaques (Macaca fuscata) from the Arashiyama West (Texas) troop. We used a large sample of completed lives to identify reproductively terminated female Japanese macaques and to consider reproductive termination in Japanese macaques from a comparative life history perspective, which permits meaningful comparisons to be made with human fe…
Comparative Primate Socioecology
Comparative Primate Socioecology. P. C. Lee. ed. New York: Cambridge University Press, 1999. 412 pp
Is There Adaptive Value to Reproductive Termination in Japanese Macaques? A Test of Maternal Investment Hypotheses
Change versus Improvement over Time and Our Place in Nature
Time plays a powerful but often unrecognized role in our thinking about nature and our place in it. Evolution, which provides the framework for all that biological anthropologists do, means change over time. Natural selection, the mechanism of evolutionary change, is routinely imbued with principles of progress that imply improvement over time. Is natural selection inherently progressive, such that the evolution of a highly complex and intelligen…
Population Reduction and Social Disorganization in Alouatta pigra Following a Hurricane
Diet and activity in black howler monkeys ( Alouatta pigra ) in southern Belize: Does degree of frugivory influence activity level?
Observed case of infanticide committed by a resident male central American black howler monkey ( Alouatta pigra )
Although infanticide has been witnessed in other species of howler monkey, and has been inferred for Alouatta pigra , an observed case of infanticide has not previously been recorded for this species. Here we describe the killing of a 2‐week‐old infant by the resident male of a small social group in southern Belize. The infanticide was witnessed as part of an intensive observational study that began in January 2003. The male was known to have res…
Group size in folivorous primates: Ecological constraints and the possible influence of social factors
Feeding Competition and Group Size in Alouatta pigra
Population Size and Characteristics of Alouatta pigra Before and After a Major Hurricane
Sources of variation in fecal cortisol levels in howler monkeys in belize
High cortisol levels are known to cause low fecundity and increased mortality; thus, the prospect of using cortisol as a measure of population health is an exciting one. However, because so many factors can interact to influence cortisol release, it can be difficult to interpret what exactly is creating changes to cortisol levels. This study investigates variation in fecal cortisol levels in a population of black howlers ( Alouatta pigra ) from 3…
The Role of Minerals in Food Selection in a Black Howler Monkey ( Alouatta Pigra ) Population in Belize Following a Major Hurricane
As plants may contain low levels of some minerals including sodium, copper, and phosphorous, herbivores may become deficient in these nutrients. In 2001, H urricane I ris hit the M onkey R iver F orest in B elize causing substantial damage to the food supply of the black howler monkey population ( Alouatta pigra ) living there. This included an 18‐month absence in fruit production and a complete loss of figs that are high in calcium. In this arti…
Do Adult Male Spider Monkeys (Ateles geoffroyi) Preferentially Handle Male Infants
Color Vision Variation as Evidenced by Hybrid L/M Opsin Genes in Wild Populations of Trichromatic Alouatta New World Monkeys
Platyrrhine (New World) monkeys possess highly polymorphic color vision owing to allelic variation of the single-locus L/M opsin gene on the X chromosome. Most species consist of female trichromats and female and male dichromats. Howlers (genus Alouatta ) are an exception; they are considered to be routinely trichromatic with L and M opsin genes juxtaposed on the X chromosome, as seen in catarrhine primates (Old World monkeys, apes, and humans). …
Assessing the Occurrence of Sexual Segregation in Spider Monkeys (Ateles geoffroyi yucatanensis), Its Mechanisms and Function
Sex Differences in the Use of Whinny Vocalizations in Spider Monkeys (Ateles geoffroyi)
Seasonal and sex differences in the fission–fusion dynamics of spider monkeys (Ateles geoffroyi yucatanensis) in Belize
Sex differences in the acoustic structure of terrestrial alarm calls in vervet monkeys ( Chlorocebus pygerythrus )
The alarm calls of vervet monkeys ( Chlorocebus pygerythrus ) have been the subject of considerable focus by researchers, owing primarily to the purported referential qualities of different alarm call types. With this focus on reference, acoustic variation among calls elicited by the same range of predators has typically been overlooked. Specifically, at least one type of alarm call—the terrestrial alarm—was described over 50 years ago as being a…
Monkeys Swimming Across Rivers Refine Questions About the Riverine Barrier Hypothesis
The Riverine Barrier Hypothesis posits that species distributions are limited by large rivers acting as geographical barriers. Accordingly, large rivers have long been thought to be a major driver of the extensive speciation and high levels of biodiversity among platyrrhine primates in South and Central America. Direct observations of river crossings provide evidence that complements studies of genetic diversity that can together shed new light o…
Biology (24 works) · Primate Behavior and Ecology (18 works) · Animal Behavior and Reproduction (15 works) · Demography (14 works) · Animal ecology (13 works) · Zoology (13 works) · Ecology (12 works) · Animal Vocal Communication and Behavior (11 works) · Sociology (9 works) · Ecology (8 works)