Linda Van Elsacker
Biographic Data
| ID | 4307802 |
|---|---|
| NAME | Linda Van Elsacker |
| GIVEN NAMES | Linda |
| FAMILY NAME | Van Elsacker |
| SIGNATURE | VAN ELSACKER L |
| AFFILIATIONS | University of Antwerp |
| VERIFIED | No |
| TOTAL WORKS | 23 |
| TOTAL CITATIONS | 151 |
| AUTHOR COUNT | 23 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1995 |
| LATEST PUBLICATION YEAR | 2007 |
| H-INDEX | 6 |
Sex Differences in the Steepness of Dominance Hierarchies in Captive Bonobo Groups
Social structures in Pan paniscus: Testing the female bonding hypothesis
Comparing infant and juvenile behavior in bonobos (Pan paniscus) and chimpanzees (Pan troglodytes): A preliminary study
Use of a tool‐set by Pan troglodytes troglodytes to obtain termites ( Macrotermes ) in the periphery of the Dja Biosphere Reserve, southeast Cameroon
At the northern periphery of the Dja Biosphere Reserve (southeastern Cameroon) we recorded a new use of a tool‐set by Pan troglodytes troglodytes to prey on Macrotermes muelleri , M. renouxi , M. lilljeborgi , and M. nobilis . We recovered 79 puncturing sticks and 47 fishing probes at 17 termite nests between 2002 and 2005. The mean length of the puncturing sticks (n = 77) and fishing probes (n = 45) was 52 cm and 56 cm, respectively, and the mea…
Peering is not a formal indicator of subordination in bonobos (Pan paniscus)
It has been suggested that peering behavior in bonobos is a formal signal acknowledging social dominance status. We investigated whether peering meets the published criteria for a formal signal of subordination in five captive groups of bonobos. The degree of linearity in the set of peering relationships was significantly high in all study groups, and a linear rank order was found. However, unidirectionality was low, and there was little correspo…
Functional analysis of the gibbon foot during terrestrial bipedal walking: Plantar pressure distributions and three‐dimensional ground reaction forces
This paper gives a detailed analysis of bipedal walking in the white‐handed gibbon, based on collected pressure and force data. These data were obtained from four gibbons in the Wild Animal Park, Planckendael, Belgium, by using a walkway with integrated force plate and pressure mat. This is the first study that collects and describes dynamic plantar pressure data of bipedally walking gibbons, and combines these with force plate data. The combinat…
Urinary testosterone-metabolite levels and dominance rank in male and female bonobos ( Pan paniscus )
Comparing maternal styles in bonobos ( Pan paniscus ) and chimpanzees ( Pan troglodytes )
Studies on Cercopithecine primate maternal styles, using factor analysis on a set of maternal behaviors, commonly render two factors that describe separate dimensions of maternal behavior: protectiveness and rejection. The aims of this study were to 1) investigate whether this method for determining maternal styles in Cercopithecine species can be applied to bonobos ( Pan paniscus ) and chimpanzees ( Pan troglodytes ), 2) determine whether they f…
Urinary testosterone metabolite levels and aggressive behaviors in male and female bonobos (Pan paniscus)
This study presents the first data on the relationship between testosterone (T) and aggression in both sexes of the bonobo ( Pan paniscus ). Morning urinary concentrations of T metabolites (measured by immunoreactive 5α–androstane–17α–ol–3–one) were used to reflect T status. Results show that first, no correlation of T metabolite levels with any of the aggressive behaviors was found between individuals. Within an individual, T metabolite levels o…
Characteristics of reproductive biology and proximate factors regulating seasonal breeding in captive golden‐headed lion tamarins ( Leontopithecus chrysomelas )
Reproduction is highly demanding in terms of energy expenditure, and the costs and benefits associated with postponing or investing in a reproductive effort are crucial determinants of an individual's fitness. Understanding the reproductive potential of a species under varying ecological conditions offers important insights into the dynamics of its social system. This study provides the first detailed analysis of the reproductive potential of wil…
Insectivory by Gorilla gorilla gorilla in Southeast Cameroon
Dynamic plantar pressure distribution during terrestrial locomotion of bonobos ( Pan paniscus )
We collected high‐resolution plantar pressure distributions of seven bonobos during terrestrial bipedal and quadrupedal locomotion (N = 146). Functional foot length, degree of hallux abduction, and total contact time were determined, and plots, showing pressure as a function of time for six different foot regions, were generated. We also studied five adult humans for comparison (N = 13). Both locomotion types of the bonobo show a large variation …
New Evidence for Leaf Swallowing and Oesophagostomum Infection in Bonobos (Pan paniscus)
Segment and joint angles of hind limb during bipedal and quadrupedal walking of the bonobo ( Pan paniscus )
We describe segment angles (trunk, thigh, shank, and foot) and joint angles (hip, knee, and ankle) for the hind limbs of bonobos walking bipedally (“bent‐hip bent‐knee walking,” 17 sequences) and quadrupedally (33 sequences). Data were based on video recordings (50 Hz) of nine subjects in a lateral view, walking at voluntary speed. The major differences between bipedal and quadrupedal walking are found in the trunk, thigh, and hip angles. During …
Function and distribution of coalitions in captive bonobos (Pan paniscus)
Sexual competition in a group of captive bonobos (Pan paniscus)
Dominance and its Behavioral Measures in a Captive Group of Bonobos (Pan paniscus)
Signaling of Reproductive Status in Captive Female Golden-Headed Lion Tamarins (Leontopithecus chrysomelas)
Spatio-temporal gait characteristics of the hind-limb cycles during voluntary bipedal and quadrupedal walking in bonobos (Pan paniscus)
Spatio-temporal gait characteristics (step and stride length, stride frequency, duty factor) were determined for the hind-limb cycles of nine bonobos (Pan paniscus) walking quadrupedally and bipedally at a range of speeds. The data were recalculated to dimensionless quantities according to the principle of dynamic similarity. Lower leg length was used as the reference length. Interindividual variability in speed modulation strategy of bonobos app…
Inter-menstrual intervals in captive bonobosPan paniscus
Food calling by captive bonobos (Pan paniscus): An experiment
Reactions of a group of pygmy chimpanzees (Pan paniscus) to their mirror-images: Evidence of self-recognition
A review of terminology on aggregation patterns in bonobos (Pan paniscus)
Dynamic plantar pressure distribution during terrestrial locomotion of bonobos ( Pan paniscus )
We collected high‐resolution plantar pressure distributions of seven bonobos during terrestrial bipedal and quadrupedal locomotion (N = 146). Functional foot length, degree of hallux abduction, and total contact time were determined, and plots, showing pressure as a function of time for six different foot regions, were generated. We also studied five adult humans for comparison (N = 13). Both locomotion types of the bonobo show a large variation …
Segment and joint angles of hind limb during bipedal and quadrupedal walking of the bonobo ( Pan paniscus )
We describe segment angles (trunk, thigh, shank, and foot) and joint angles (hip, knee, and ankle) for the hind limbs of bonobos walking bipedally (“bent‐hip bent‐knee walking,” 17 sequences) and quadrupedally (33 sequences). Data were based on video recordings (50 Hz) of nine subjects in a lateral view, walking at voluntary speed. The major differences between bipedal and quadrupedal walking are found in the trunk, thigh, and hip angles. During …
Functional analysis of the gibbon foot during terrestrial bipedal walking: Plantar pressure distributions and three‐dimensional ground reaction forces
This paper gives a detailed analysis of bipedal walking in the white‐handed gibbon, based on collected pressure and force data. These data were obtained from four gibbons in the Wild Animal Park, Planckendael, Belgium, by using a walkway with integrated force plate and pressure mat. This is the first study that collects and describes dynamic plantar pressure data of bipedally walking gibbons, and combines these with force plate data. The combinat…
Dominance and its Behavioral Measures in a Captive Group of Bonobos (Pan paniscus)
Insectivory by Gorilla gorilla gorilla in Southeast Cameroon
Sex Differences in the Steepness of Dominance Hierarchies in Captive Bonobo Groups
New Evidence for Leaf Swallowing and Oesophagostomum Infection in Bonobos (Pan paniscus)
Food calling by captive bonobos (Pan paniscus): An experiment
Signaling of Reproductive Status in Captive Female Golden-Headed Lion Tamarins (Leontopithecus chrysomelas)
Urinary testosterone metabolite levels and aggressive behaviors in male and female bonobos (Pan paniscus)
This study presents the first data on the relationship between testosterone (T) and aggression in both sexes of the bonobo ( Pan paniscus ). Morning urinary concentrations of T metabolites (measured by immunoreactive 5α–androstane–17α–ol–3–one) were used to reflect T status. Results show that first, no correlation of T metabolite levels with any of the aggressive behaviors was found between individuals. Within an individual, T metabolite levels o…
Reactions of a group of pygmy chimpanzees (Pan paniscus) to their mirror-images: Evidence of self-recognition
A review of terminology on aggregation patterns in bonobos (Pan paniscus)
Food calling by captive bonobos (Pan paniscus): An experiment
Inter-menstrual intervals in captive bonobosPan paniscus
Function and distribution of coalitions in captive bonobos (Pan paniscus)
Sexual competition in a group of captive bonobos (Pan paniscus)
Dominance and its Behavioral Measures in a Captive Group of Bonobos (Pan paniscus)
Signaling of Reproductive Status in Captive Female Golden-Headed Lion Tamarins (Leontopithecus chrysomelas)
Spatio-temporal gait characteristics of the hind-limb cycles during voluntary bipedal and quadrupedal walking in bonobos (Pan paniscus)
Spatio-temporal gait characteristics (step and stride length, stride frequency, duty factor) were determined for the hind-limb cycles of nine bonobos (Pan paniscus) walking quadrupedally and bipedally at a range of speeds. The data were recalculated to dimensionless quantities according to the principle of dynamic similarity. Lower leg length was used as the reference length. Interindividual variability in speed modulation strategy of bonobos app…
New Evidence for Leaf Swallowing and Oesophagostomum Infection in Bonobos (Pan paniscus)
Segment and joint angles of hind limb during bipedal and quadrupedal walking of the bonobo ( Pan paniscus )
We describe segment angles (trunk, thigh, shank, and foot) and joint angles (hip, knee, and ankle) for the hind limbs of bonobos walking bipedally (“bent‐hip bent‐knee walking,” 17 sequences) and quadrupedally (33 sequences). Data were based on video recordings (50 Hz) of nine subjects in a lateral view, walking at voluntary speed. The major differences between bipedal and quadrupedal walking are found in the trunk, thigh, and hip angles. During …
Characteristics of reproductive biology and proximate factors regulating seasonal breeding in captive golden‐headed lion tamarins ( Leontopithecus chrysomelas )
Reproduction is highly demanding in terms of energy expenditure, and the costs and benefits associated with postponing or investing in a reproductive effort are crucial determinants of an individual's fitness. Understanding the reproductive potential of a species under varying ecological conditions offers important insights into the dynamics of its social system. This study provides the first detailed analysis of the reproductive potential of wil…
Insectivory by Gorilla gorilla gorilla in Southeast Cameroon
Dynamic plantar pressure distribution during terrestrial locomotion of bonobos ( Pan paniscus )
We collected high‐resolution plantar pressure distributions of seven bonobos during terrestrial bipedal and quadrupedal locomotion (N = 146). Functional foot length, degree of hallux abduction, and total contact time were determined, and plots, showing pressure as a function of time for six different foot regions, were generated. We also studied five adult humans for comparison (N = 13). Both locomotion types of the bonobo show a large variation …
Urinary testosterone-metabolite levels and dominance rank in male and female bonobos ( Pan paniscus )
Comparing maternal styles in bonobos ( Pan paniscus ) and chimpanzees ( Pan troglodytes )
Studies on Cercopithecine primate maternal styles, using factor analysis on a set of maternal behaviors, commonly render two factors that describe separate dimensions of maternal behavior: protectiveness and rejection. The aims of this study were to 1) investigate whether this method for determining maternal styles in Cercopithecine species can be applied to bonobos ( Pan paniscus ) and chimpanzees ( Pan troglodytes ), 2) determine whether they f…
Urinary testosterone metabolite levels and aggressive behaviors in male and female bonobos (Pan paniscus)
This study presents the first data on the relationship between testosterone (T) and aggression in both sexes of the bonobo ( Pan paniscus ). Morning urinary concentrations of T metabolites (measured by immunoreactive 5α–androstane–17α–ol–3–one) were used to reflect T status. Results show that first, no correlation of T metabolite levels with any of the aggressive behaviors was found between individuals. Within an individual, T metabolite levels o…
Peering is not a formal indicator of subordination in bonobos (Pan paniscus)
It has been suggested that peering behavior in bonobos is a formal signal acknowledging social dominance status. We investigated whether peering meets the published criteria for a formal signal of subordination in five captive groups of bonobos. The degree of linearity in the set of peering relationships was significantly high in all study groups, and a linear rank order was found. However, unidirectionality was low, and there was little correspo…
Functional analysis of the gibbon foot during terrestrial bipedal walking: Plantar pressure distributions and three‐dimensional ground reaction forces
This paper gives a detailed analysis of bipedal walking in the white‐handed gibbon, based on collected pressure and force data. These data were obtained from four gibbons in the Wild Animal Park, Planckendael, Belgium, by using a walkway with integrated force plate and pressure mat. This is the first study that collects and describes dynamic plantar pressure data of bipedally walking gibbons, and combines these with force plate data. The combinat…
Social structures in Pan paniscus: Testing the female bonding hypothesis
Comparing infant and juvenile behavior in bonobos (Pan paniscus) and chimpanzees (Pan troglodytes): A preliminary study
Use of a tool‐set by Pan troglodytes troglodytes to obtain termites ( Macrotermes ) in the periphery of the Dja Biosphere Reserve, southeast Cameroon
At the northern periphery of the Dja Biosphere Reserve (southeastern Cameroon) we recorded a new use of a tool‐set by Pan troglodytes troglodytes to prey on Macrotermes muelleri , M. renouxi , M. lilljeborgi , and M. nobilis . We recovered 79 puncturing sticks and 47 fishing probes at 17 termite nests between 2002 and 2005. The mean length of the puncturing sticks (n = 77) and fishing probes (n = 45) was 52 cm and 56 cm, respectively, and the mea…
Sex Differences in the Steepness of Dominance Hierarchies in Captive Bonobo Groups
Biology (23 works) · Primate Behavior and Ecology (22 works) · Zoology (18 works) · Animal ecology (14 works) · Pan paniscus (14 works) · Animal Behavior and Reproduction (13 works) · Ecology (12 works) · Psychology (12 works) · Bonobo (10 works) · Ecology (9 works)