Martin N Muller
Biographic Data
| ID | 118016 |
|---|---|
| NAME | Martin N Muller |
| GIVEN NAMES | Martin N |
| FAMILY NAME | Muller |
| SIGNATURE | MULLER M N |
| AFFILIATIONS | University of New Mexico |
| ORCID | 0000-0002-4298-8219 |
| VERIFIED | Yes |
| TOTAL WORKS | 25 |
| TOTAL CITATIONS | 49 |
| AUTHOR COUNT | 24 |
| EDITOR COUNT | 1 |
| FIRST PUBLICATION YEAR | 2002 |
| LATEST PUBLICATION YEAR | 2022 |
| H-INDEX | 5 |
Viruses associated with ill health in wild chimpanzees
Viral infection is a major cause of ill health in wild chimpanzees ( Pan troglodytes ), but most evidence to date has come from conspicuous disease outbreaks with high morbidity and mortality. To examine the relationship between viral infection and ill health during periods not associated with disease outbreaks, we conducted a longitudinal study of wild eastern chimpanzees ( P. t. schweinfurthii ) in the Kanyawara and Ngogo communities of Kibale …
Female‐directed aggression by adolescent male chimpanzees primarily constitutes dominance striving, not sexual coercion
OBJECTIVES: Chimpanzees (Pan troglodytes) are notable for exhibiting high levels of male-to-female aggression. Much of this aggression from adult males serves sexually coercive functions. Despite being smaller and lower-ranking than adult males, adolescent males also engage in regular aggression against adult females. Here, we test whether the primary function of this aggression is sexual coercion, as in adult males, or, alternatively, whether ad…
Human‐like adrenal development in wild chimpanzees: A longitudinal study of urinary dehydroepiandrosterone‐sulfate and cortisol
The development of the adrenal cortex varies considerably across primates, being most conspicuous in humans, where a functional zona reticularis–the site of dehydroepiandrosterone‐sulfate (DHEA/S) production–does not develop until middle childhood (5–8 years). Prior reports suggest that a human‐like adrenarche, associated with a sharp prepubertal increase in DHEA/S, may only occur in the genus Pan . However, the timing and variability in adrenarc…
Sexual dimorphism in chimpanzee (Pan troglodytes schweinfurthii) and human age-specific fertility
The development of feeding behavior in wild chimpanzees ( Pan troglodytes schweinfurthii )
OBJECTIVES: Primates have an extended period of juvenility before adulthood. Although dietary complexity plays a prominent role in hypotheses regarding the evolution of extended juvenility, the development of feeding behavior is still poorly understood. Indeed, few studies have investigated the timing and nature of feeding transitions in apes, including chimpanzees. We describe general patterns of feeding development in wild chimpanzees and evalu…
Steroid Hormone Reactivity in Fathers Watching Their Children Compete
Screening wild and semi‐free ranging great apes for putative sexually transmitted diseases: Evidence of Trichomonadidae infections
First published: 26 June 2015 DOI: 10.1002/ajp.22442 In Rushmore et al., there was an error that affected the phylogenetic analysis presented in Figure 2. Below is a corrected version of Figure 2, which includes sequences from fecal and urine samples obtained from chimpanzees in our study and other related parasites (with Genbank accession numbers). Full-length (250 ±1 nt) Illumina reads from fecal samples were paired by name and merged using Gen…
Predation by female chimpanzees: Toward an understanding of sex differences in meat acquisition in the last common ancestor of Pan and Homo
Remembering Jerry Lwanga: A Perspective from His Colleagues
Screening wild and semi‐free ranging great apes for putative sexually transmitted diseases: Evidence of Trichomonadidae infections
Sexually transmitted diseases (STDs) can persist endemically, are known to cause sterility and infant mortality in humans, and could have similar impacts in wildlife populations. African apes (i.e., chimpanzees, bonobos, and to a lesser extent gorillas) show multi-male mating behavior that could offer opportunities for STD transmission, yet little is known about the prevalence and impact of STDs in this endangered primate group. We used serology …
The Paternal Provisioning Hypothesis: Effects of workload and testosterone production on men's musculature
OBJECTIVES: Testosterone supports male reproduction through a broad range of behavioral and physiological effects, including the maintenance of sexually dimorphic muscle used in male-male competition. Although it is often assumed that a persistent relationship exists between men's testosterone production and musculature, most studies either fail to find evidence for such a relationship, or document very weak associations. In nonhuman primates, by…
Lethal aggression in Pan is better explained by adaptive strategies than human impacts
The Foraging Costs of Mating Effort in Male Chimpanzees (Pan troglodytes schweinfurthii)
Mortality rates among Kanyawara chimpanzees
Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
Fossils and molecular data are two independent sources of information that should in principle provide consistent inferences of when evolutionary lineages diverged. Here we use an alternative approach to genetic inference of species split times in recent human and ape evolution that is independent of the fossil record. We first use genetic parentage information on a large number of wild chimpanzees and mountain gorillas to directly infer their av…
Technical note: Variation in muscle mass in wild chimpanzees: Application of a modified urinary creatinine method
Individual body size and composition are important variables for a variety of questions about the behavioral ecology and life histories of non‐human primates. Standard methodologies for obtaining body mass involve either capture, which poses risks to the subject, or provisioning, which can disrupt the processes being studied. There are no methods currently available to assess body composition from living animals in the wild. Because of its deriva…
Sexual Selection and the Origins of Human Mating Systems . Alan F. Dixson
Sexual Coercion in Primates and Humans: An Evolutionary Perspective on Male Aggression Against Females
This book presents extensive field research and analysis to evaluate sexual coercion in a range of species—including all of the great apes and humans—and to clarify its role in shaping social relationships among males, among females, and between the sexes.
Hyperprogesteronemia in response to Vitex fischeri consumption in wild chimpanzees ( Pan troglodytes schweinfurthii )
Chimpanzees in Gombe National Park consume fruits of Vitex fischeri during a short annual fruiting season. This fruit species is a member of a genus widely studied for phytoestrogen composition and varied physiological effects. One particularly well‐studied species, V. agnus‐castus , is noted for its documented effects on female reproductive function, evidenced in increased progesterone levels and consequent regulation of luteal function. We exam…
Comparative rates of violence in chimpanzees and humans
Lethal intergroup aggression by chimpanzees in Kibale National Park, Uganda
Chimpanzees ( Pan troglodytes ) have hostile intergroup relations throughout most or all of their geographic range. Hostilities include aggressive encounters between members of neighboring communities during foraging and during patrols in which members of one community search for neighbors near territory boundaries. Attacks on neighbors involve coalitions of adult males, and are sometimes fatal. Targets include members of all age/sex classes, but…
Testosterone and energetics in wild chimpanzees ( Pan troglodytes schweinfurthii )
Ovarian function in female hominoids is sensitive to both energy flux and energy balance, resulting in a reduced probability of conception during periods when a successful reproductive outcome is less likely. However, the extent to which energetic factors constrain gonadal function in male hominoids is not clear. We examined the effects of both acute and chronic variation in energy availability on urinary testosterone (T) levels in adult male chi…
Dominance, aggression and testosterone in wild chimpanzees: A test of the ‘challenge hypothesis’
Diurnal patterns of urinary steroid excretion in wild chimpanzees
Urinary testosterone and cortisol concentrations were quantified in a large number of samples (>500) collected from wild male chimpanzees (n=11) over the course of 1 year. For both steroids, urinary concentrations were higher and more variable in the morning than in the afternoon. Urinary creatinine levels showed no such diurnal pattern. These patterns are consistent with studies of steroid excretion in humans and gorillas. This study emphasizes …
Recent developments in the study of wild chimpanzee behavior
The development of feeding behavior in wild chimpanzees ( Pan troglodytes schweinfurthii )
OBJECTIVES: Primates have an extended period of juvenility before adulthood. Although dietary complexity plays a prominent role in hypotheses regarding the evolution of extended juvenility, the development of feeding behavior is still poorly understood. Indeed, few studies have investigated the timing and nature of feeding transitions in apes, including chimpanzees. We describe general patterns of feeding development in wild chimpanzees and evalu…
Mortality rates among Kanyawara chimpanzees
Predation by female chimpanzees: Toward an understanding of sex differences in meat acquisition in the last common ancestor of Pan and Homo
Technical note: Variation in muscle mass in wild chimpanzees: Application of a modified urinary creatinine method
Individual body size and composition are important variables for a variety of questions about the behavioral ecology and life histories of non‐human primates. Standard methodologies for obtaining body mass involve either capture, which poses risks to the subject, or provisioning, which can disrupt the processes being studied. There are no methods currently available to assess body composition from living animals in the wild. Because of its deriva…
The Paternal Provisioning Hypothesis: Effects of workload and testosterone production on men's musculature
OBJECTIVES: Testosterone supports male reproduction through a broad range of behavioral and physiological effects, including the maintenance of sexually dimorphic muscle used in male-male competition. Although it is often assumed that a persistent relationship exists between men's testosterone production and musculature, most studies either fail to find evidence for such a relationship, or document very weak associations. In nonhuman primates, by…
Steroid Hormone Reactivity in Fathers Watching Their Children Compete
The Foraging Costs of Mating Effort in Male Chimpanzees (Pan troglodytes schweinfurthii)
Sexual dimorphism in chimpanzee (Pan troglodytes schweinfurthii) and human age-specific fertility
Recent developments in the study of wild chimpanzee behavior
Diurnal patterns of urinary steroid excretion in wild chimpanzees
Urinary testosterone and cortisol concentrations were quantified in a large number of samples (>500) collected from wild male chimpanzees (n=11) over the course of 1 year. For both steroids, urinary concentrations were higher and more variable in the morning than in the afternoon. Urinary creatinine levels showed no such diurnal pattern. These patterns are consistent with studies of steroid excretion in humans and gorillas. This study emphasizes …
Dominance, aggression and testosterone in wild chimpanzees: A test of the ‘challenge hypothesis’
Testosterone and energetics in wild chimpanzees ( Pan troglodytes schweinfurthii )
Ovarian function in female hominoids is sensitive to both energy flux and energy balance, resulting in a reduced probability of conception during periods when a successful reproductive outcome is less likely. However, the extent to which energetic factors constrain gonadal function in male hominoids is not clear. We examined the effects of both acute and chronic variation in energy availability on urinary testosterone (T) levels in adult male chi…
Comparative rates of violence in chimpanzees and humans
Lethal intergroup aggression by chimpanzees in Kibale National Park, Uganda
Chimpanzees ( Pan troglodytes ) have hostile intergroup relations throughout most or all of their geographic range. Hostilities include aggressive encounters between members of neighboring communities during foraging and during patrols in which members of one community search for neighbors near territory boundaries. Attacks on neighbors involve coalitions of adult males, and are sometimes fatal. Targets include members of all age/sex classes, but…
Hyperprogesteronemia in response to Vitex fischeri consumption in wild chimpanzees ( Pan troglodytes schweinfurthii )
Chimpanzees in Gombe National Park consume fruits of Vitex fischeri during a short annual fruiting season. This fruit species is a member of a genus widely studied for phytoestrogen composition and varied physiological effects. One particularly well‐studied species, V. agnus‐castus , is noted for its documented effects on female reproductive function, evidenced in increased progesterone levels and consequent regulation of luteal function. We exam…
Sexual Coercion in Primates and Humans: An Evolutionary Perspective on Male Aggression Against Females
This book presents extensive field research and analysis to evaluate sexual coercion in a range of species—including all of the great apes and humans—and to clarify its role in shaping social relationships among males, among females, and between the sexes.
Sexual Selection and the Origins of Human Mating Systems . Alan F. Dixson
Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
Fossils and molecular data are two independent sources of information that should in principle provide consistent inferences of when evolutionary lineages diverged. Here we use an alternative approach to genetic inference of species split times in recent human and ape evolution that is independent of the fossil record. We first use genetic parentage information on a large number of wild chimpanzees and mountain gorillas to directly infer their av…
Technical note: Variation in muscle mass in wild chimpanzees: Application of a modified urinary creatinine method
Individual body size and composition are important variables for a variety of questions about the behavioral ecology and life histories of non‐human primates. Standard methodologies for obtaining body mass involve either capture, which poses risks to the subject, or provisioning, which can disrupt the processes being studied. There are no methods currently available to assess body composition from living animals in the wild. Because of its deriva…
Lethal aggression in Pan is better explained by adaptive strategies than human impacts
The Foraging Costs of Mating Effort in Male Chimpanzees (Pan troglodytes schweinfurthii)
Mortality rates among Kanyawara chimpanzees
Screening wild and semi‐free ranging great apes for putative sexually transmitted diseases: Evidence of Trichomonadidae infections
Sexually transmitted diseases (STDs) can persist endemically, are known to cause sterility and infant mortality in humans, and could have similar impacts in wildlife populations. African apes (i.e., chimpanzees, bonobos, and to a lesser extent gorillas) show multi-male mating behavior that could offer opportunities for STD transmission, yet little is known about the prevalence and impact of STDs in this endangered primate group. We used serology …
The Paternal Provisioning Hypothesis: Effects of workload and testosterone production on men's musculature
OBJECTIVES: Testosterone supports male reproduction through a broad range of behavioral and physiological effects, including the maintenance of sexually dimorphic muscle used in male-male competition. Although it is often assumed that a persistent relationship exists between men's testosterone production and musculature, most studies either fail to find evidence for such a relationship, or document very weak associations. In nonhuman primates, by…
Remembering Jerry Lwanga: A Perspective from His Colleagues
Screening wild and semi‐free ranging great apes for putative sexually transmitted diseases: Evidence of Trichomonadidae infections
First published: 26 June 2015 DOI: 10.1002/ajp.22442 In Rushmore et al., there was an error that affected the phylogenetic analysis presented in Figure 2. Below is a corrected version of Figure 2, which includes sequences from fecal and urine samples obtained from chimpanzees in our study and other related parasites (with Genbank accession numbers). Full-length (250 ±1 nt) Illumina reads from fecal samples were paired by name and merged using Gen…
Predation by female chimpanzees: Toward an understanding of sex differences in meat acquisition in the last common ancestor of Pan and Homo
The development of feeding behavior in wild chimpanzees ( Pan troglodytes schweinfurthii )
OBJECTIVES: Primates have an extended period of juvenility before adulthood. Although dietary complexity plays a prominent role in hypotheses regarding the evolution of extended juvenility, the development of feeding behavior is still poorly understood. Indeed, few studies have investigated the timing and nature of feeding transitions in apes, including chimpanzees. We describe general patterns of feeding development in wild chimpanzees and evalu…
Steroid Hormone Reactivity in Fathers Watching Their Children Compete
Human‐like adrenal development in wild chimpanzees: A longitudinal study of urinary dehydroepiandrosterone‐sulfate and cortisol
The development of the adrenal cortex varies considerably across primates, being most conspicuous in humans, where a functional zona reticularis–the site of dehydroepiandrosterone‐sulfate (DHEA/S) production–does not develop until middle childhood (5–8 years). Prior reports suggest that a human‐like adrenarche, associated with a sharp prepubertal increase in DHEA/S, may only occur in the genus Pan . However, the timing and variability in adrenarc…
Sexual dimorphism in chimpanzee (Pan troglodytes schweinfurthii) and human age-specific fertility
Female‐directed aggression by adolescent male chimpanzees primarily constitutes dominance striving, not sexual coercion
OBJECTIVES: Chimpanzees (Pan troglodytes) are notable for exhibiting high levels of male-to-female aggression. Much of this aggression from adult males serves sexually coercive functions. Despite being smaller and lower-ranking than adult males, adolescent males also engage in regular aggression against adult females. Here, we test whether the primary function of this aggression is sexual coercion, as in adult males, or, alternatively, whether ad…
Viruses associated with ill health in wild chimpanzees
Viral infection is a major cause of ill health in wild chimpanzees ( Pan troglodytes ), but most evidence to date has come from conspicuous disease outbreaks with high morbidity and mortality. To examine the relationship between viral infection and ill health during periods not associated with disease outbreaks, we conducted a longitudinal study of wild eastern chimpanzees ( P. t. schweinfurthii ) in the Kanyawara and Ngogo communities of Kibale …
Biology (23 works) · Primate Behavior and Ecology (19 works) · Zoology (14 works) · Troglodytes (11 works) · Ecology (10 works) · Evolutionary Psychology and Human Behavior (9 works) · Psychology (9 works) · Ecology (8 works) · Medicine (8 works) · Animal Behavior and Reproduction (7 works)