Elaine N Videan
Biographic Data
| ID | 4336664 |
|---|---|
| NAME | Elaine N Videan |
| GIVEN NAMES | Elaine N |
| FAMILY NAME | Videan |
| SIGNATURE | VIDEAN E N |
| AFFILIATIONS | Middle East Studies Association of North America |
| VERIFIED | No |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 15 |
| AUTHOR COUNT | 11 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2011 |
| H-INDEX | 1 |
Diagnosis and prevalence of uterine leiomyomata in female chimpanzees ( Pan troglodytes )
Uterine leiomyomata are common, affecting 70–80% of women between 30 and 50 years of age. Leiomyomata have been reported for a variety of primate species, although prevalence rates and treatments have not been widely reported. The prevalence, diagnosis, and treatment of uterine leiomyomata in the Alamogordo Primate Facility and the Keeling Center for Comparative Medicine and Research were examined. Uterine leiomyomata were diagnosed in 28.4% of c…
Functional versus operational menopause
Reproductive aging in captive and wild common chimpanzees
We examine and discuss evidence of contrasting differences in fertility patterns between captive and wild female chimpanzees, Pan troglodytes , as they age; in the wild females reproduce in their 40s, but captive studies suggest that menopause occurs around that time. Thus, despite the increased longevity generally observed in captive populations reproductive life span is shortened. We outline a hypothesis to explain the apparent differential pac…
Effects of aging on hematology and serum clinical chemistry in chimpanzees ( Pan troglodytes )
A number of age‐related changes in physiological functions have been identified in macaques and humans. However, few studies have examined physiological aging in chimpanzees, despite the increasing age of the chimpanzee population. We documented age‐related changes in seven hematology and 17 clinical chemistry parameters in 49 adult chimpanzees (17 males, 32 females) as a comparative viewpoint with human and macaque aging. Longitudinal data were …
Hunting and Occasional Consumption of Prey Items by Chimpanzees at the Primate Foundation of Arizona
Functional evidence for differences in sperm competition in humans and chimpanzees
Sperm competition occurs when the gametes of or more males compete for opportunities to fertilize a given set of ova. Previous studies have demonstrated that certain morphological characteristics are affected by sperm competition intensity (e.g. relative testes size and sperm midpiece volume). This study examined whether aspects of sperm energetics may also be affected by sexual selection. We compared the membrane potential of mitochondria in liv…
Bed‐building in captive chimpanzees ( Pan troglodytes )
In the wild, great apes sleep in beds they make by successively bending branches into an interwoven platform. These beds are functionally more closely related to human beds than they are to the nests and tree‐holes used by other primate species. The idea that bed‐building by great apes is learned behavior that is dependent on appropriate early experiences has been proposed but never fully tested. In the present study this hypothesis was indirectl…
Neighbor effect
Previous studies of captive chimpanzees have demonstrated the “neighbor effect,” or social contagion, with respect to agonistic vocalizations and behaviors. The present study considers whether there is a relationship between behavior patterns in focal animals and the auditory signals of neighboring social groups. Using focal‐group sampling, we collected 172.5 hr of data on 51 subjects (25 females and 26 males) housed in 10 social groups. We perfo…
Lowly origin
Bipedality in chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus )
A host of ecological, anatomical, and physiological selective pressures are hypothesized to have played a role in the evolution of hominid bipedalism. A referential model, based on the chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus ), was used to test through experimental manipulation four hypotheses on the evolution of hominid bipedalism. The introduction of food piles (Carry hypothesis) increased locomotor bipedality in both species. …
Are bonobos ( Pan paniscus ) really more bipedal than chimpanzees ( Pan troglodytes )
Of the living apes, the chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus ) are often presented as possible models for the evolution of hominid bipedalism. Bipedality in matched pairs of captive bonobos and chimpanzees was analyzed to test hypotheses for the evolution of bipedalism, derived from a direct referential model. There was no overall species difference in rates of bipedal positional behavior, either postural or locomotory. The ho…
Bipedality in chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus )
A host of ecological, anatomical, and physiological selective pressures are hypothesized to have played a role in the evolution of hominid bipedalism. A referential model, based on the chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus ), was used to test through experimental manipulation four hypotheses on the evolution of hominid bipedalism. The introduction of food piles (Carry hypothesis) increased locomotor bipedality in both species. …
Functional evidence for differences in sperm competition in humans and chimpanzees
Sperm competition occurs when the gametes of or more males compete for opportunities to fertilize a given set of ova. Previous studies have demonstrated that certain morphological characteristics are affected by sperm competition intensity (e.g. relative testes size and sperm midpiece volume). This study examined whether aspects of sperm energetics may also be affected by sexual selection. We compared the membrane potential of mitochondria in liv…
Are bonobos ( Pan paniscus ) really more bipedal than chimpanzees ( Pan troglodytes )
Of the living apes, the chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus ) are often presented as possible models for the evolution of hominid bipedalism. Bipedality in matched pairs of captive bonobos and chimpanzees was analyzed to test hypotheses for the evolution of bipedalism, derived from a direct referential model. There was no overall species difference in rates of bipedal positional behavior, either postural or locomotory. The ho…
Bipedality in chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus )
A host of ecological, anatomical, and physiological selective pressures are hypothesized to have played a role in the evolution of hominid bipedalism. A referential model, based on the chimpanzee ( Pan troglodytes ) and bonobo ( Pan paniscus ), was used to test through experimental manipulation four hypotheses on the evolution of hominid bipedalism. The introduction of food piles (Carry hypothesis) increased locomotor bipedality in both species. …
Lowly origin
Neighbor effect
Previous studies of captive chimpanzees have demonstrated the “neighbor effect,” or social contagion, with respect to agonistic vocalizations and behaviors. The present study considers whether there is a relationship between behavior patterns in focal animals and the auditory signals of neighboring social groups. Using focal‐group sampling, we collected 172.5 hr of data on 51 subjects (25 females and 26 males) housed in 10 social groups. We perfo…
Bed‐building in captive chimpanzees ( Pan troglodytes )
In the wild, great apes sleep in beds they make by successively bending branches into an interwoven platform. These beds are functionally more closely related to human beds than they are to the nests and tree‐holes used by other primate species. The idea that bed‐building by great apes is learned behavior that is dependent on appropriate early experiences has been proposed but never fully tested. In the present study this hypothesis was indirectl…
Hunting and Occasional Consumption of Prey Items by Chimpanzees at the Primate Foundation of Arizona
Functional evidence for differences in sperm competition in humans and chimpanzees
Sperm competition occurs when the gametes of or more males compete for opportunities to fertilize a given set of ova. Previous studies have demonstrated that certain morphological characteristics are affected by sperm competition intensity (e.g. relative testes size and sperm midpiece volume). This study examined whether aspects of sperm energetics may also be affected by sexual selection. We compared the membrane potential of mitochondria in liv…
Effects of aging on hematology and serum clinical chemistry in chimpanzees ( Pan troglodytes )
A number of age‐related changes in physiological functions have been identified in macaques and humans. However, few studies have examined physiological aging in chimpanzees, despite the increasing age of the chimpanzee population. We documented age‐related changes in seven hematology and 17 clinical chemistry parameters in 49 adult chimpanzees (17 males, 32 females) as a comparative viewpoint with human and macaque aging. Longitudinal data were …
Functional versus operational menopause
Reproductive aging in captive and wild common chimpanzees
We examine and discuss evidence of contrasting differences in fertility patterns between captive and wild female chimpanzees, Pan troglodytes , as they age; in the wild females reproduce in their 40s, but captive studies suggest that menopause occurs around that time. Thus, despite the increased longevity generally observed in captive populations reproductive life span is shortened. We outline a hypothesis to explain the apparent differential pac…
Diagnosis and prevalence of uterine leiomyomata in female chimpanzees ( Pan troglodytes )
Uterine leiomyomata are common, affecting 70–80% of women between 30 and 50 years of age. Leiomyomata have been reported for a variety of primate species, although prevalence rates and treatments have not been widely reported. The prevalence, diagnosis, and treatment of uterine leiomyomata in the Alamogordo Primate Facility and the Keeling Center for Comparative Medicine and Research were examined. Uterine leiomyomata were diagnosed in 28.4% of c…
Biology (9 works) · Primate Behavior and Ecology (8 works) · Zoology (8 works) · Troglodytes (7 works) · Ecology (5 works) · Animal Vocal Communication and Behavior (4 works) · Captivity (4 works) · Pongidae (4 works) · Physiology (3 works) · Primate (3 works)