L A P Kohn
Biographic Data
| ID | 652185 |
|---|---|
| NAME | L A P Kohn |
| GIVEN NAMES | L A P |
| FAMILY NAME | Kohn |
| SIGNATURE | KOHN L A P |
| AFFILIATIONS | Washington University in St. Louis |
| ORCID | 0000-0002-8154-5672 |
| VERIFIED | Yes |
| TOTAL WORKS | 13 |
| TOTAL CITATIONS | 111 |
| AUTHOR COUNT | 13 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1986 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 5 |
CSViewer for Analysts: II. Analytic Tools and Visualization of Founder Lineages, Social Groups, and Reproduction Dynamics of the Cayo Santiago Rhesus Macaque Colony
The Cayo Santiago (CS) rhesus macaque colony has raised a total of over 11,000 animals in a free‐ranging setting very close to the natural environment. The well‐kept individual and family records, as well as social group management data, have been a valuable source for anthropological research. However, the various sources of data have been stored in separation, and there was no straightforward way for researchers to access them directly. Since 2…
Revisiting Linear Enamel Hypoplasia in Cayo Santiago Rhesus Macaques ( Macaca mulatta ): How a Stress Marker Relates to Environment and Maternal Lineage in a Rare Rhesus Colony With Known Life History
Linear enamel hypoplasias (LEHs) are development defects appearing as lines or grooves on enamel surfaces. Forming when physiological stressors disrupt developing teeth, LEHs provide retrospective insight into stress experienced in early development. Here, LEHs in Cayo Santiago rhesus macaques ( Macaca mulatta ) were observed with respect to decade of birth, whether an individual was transferred from the free‐ranging colony to the captive facilit…
CSViewer for Analysts: I. Building an Integrative Database and Knowledge Model for the Cayo Santiago Rhesus Macaque Colony and Its Derived Skeletal Collections
The Cayo Santiago rhesus colony and its derived skeletal collections provide abundant data made available since its founding in 1938. A project supported by an NSF collaborative grant has been committed to building a database that integrates the genetic and age‐related information of the colony, together with social group interactions and environmental effects, aiming to provide a knowledge model to researchers with insights from this powerful no…
Dental Fluctuating Asymmetry: Environmental Factors Influencing Cayo Santiago Rhesus Macaque ( Macaca mulatta ) Dental Development
Increased fluctuating asymmetry, or random differences between right and left sides, has been associated with developmental stress or developmental instability. This study examines fluctuating asymmetry (FA) of mesio‐distal and bucco‐lingual dimensions of deciduous maxillary molars (m 1 , m 2 ), and permanent maxillary premolars and molars (P 3 , P 4 , M 1 , M 2 ) of 466 rhesus macaques ( Macaca mulatta ) born between 1950 and 2018 from Cayo Sant…
Subspecific genetic differences in the saddle‐back tamarin ( Saguinus fuscicollis ) postcranial skeleton
Saddle‐back tamarins ( Saguinus fuscicollis ) have been differentiated into subspecies based on coat color and facial morphology. Morphology of first‐generation genetic hybrids can provide an understanding of population differences and evolution that may otherwise be difficult to obtain. This study compares postcranial morphology in two hybrids of saddle‐back tamarins ( S. f. illigeri × S. f. lagonotus and S. f. illigeri × S. f. leucogenys ) to t…
Age of epiphyseal closure in tamarins and marmosets
Estimates of the chronological age for animals of unknown age provide useful information for medical, demographic, and evolutionary studies. Skeletal development, as indicated by epiphyseal closure, can be used to estimate an animal's chronological age or specify its stage of development. Many studies of Primate skeletal development have used animals of unknown age, with the order of epiphyseal closure providing a relative age for each animal. Th…
Age of epiphyseal closure in tamarins and marmosets
Estimates of the chronological age for animals of unknown age provide useful information for medical, demographic, and evolutionary studies. Skeletal development, as indicated by epiphyseal closure, can be used to estimate an animal's chronological age or specify its stage of development. Many studies of Primate skeletal development have used animals of unknown age, with the order of epiphyseal closure providing a relative age for each animal. Th…
Asymmetric vault modification in Hopi crania
Cradleboarding was practiced by numerous prehistoric and historic populations, including the Hopi. In this group, one result of cra‐dleboarding was bilateral or asymmetric flattening of the posterior occipital. We test whether cradleboarding had significant effects on the morphology of the cranial vault, cranial base, and face. Additionally, we examine associations between direction of flattening and asymmetric craniofacial growth. A skeletal sam…
Effects of annular cranial vault modification on the cranial base and face
Artificial modification of the cranial vault was practiced by a number of prehistoric and protohistoric populations, frequently during an infant's first year of life. We test the hypothesis that, in addition to its direct effects on the cranial vault, annular cranial vault modification has a significant indirect effect on cranial base and facial morphology. Two skeletal series from the Pacific Northwest Coast, which include both nonmodified and m…
Cranial deformation and nonmetric trait variation
Cranial deformation is known to influence many traditional craniometric variables, but its effects on nonmetric trait variation are not well characterized. In this study, we examine the effects of three types of deformation (annular, lambdoid flattening, and fronto‐occipital) on nonmetric traits, using a large sample of protohistoric and prehistoric crania. Our results indicate that a few traits are increased or decreased in relative frequency by…
Effects of fronto‐occipital artificial cranial vault modification on the cranial base and face
Artificial reshaping of the cranial vault has been practiced by many human groups and provides a natural experiment in which the relationships of neurocranial, cranial base, and facial growth can be investigated. We test the hypothesis that fronto‐occipital artificial reshaping of the neurocranial vault results in specific changes in the cranial base and face. Fronto‐occipital reshaping results from the application of pads or a cradle board which…
The Role of Genetics in Craniofacial Morphology and Growth
Infrastructures are material forms that allow for the possibility of exchange over space. They are the physical networks through which goods, ideas, waste, power, people, and finance are trafficked. In this article I trace the range of anthropological ...Read More
Fluctuating asymmetry in fetuses of diabetic rhesus macaques
This study examines dental fluctuating asymmetry (FA) in two samples of fetal rhesus monkeys, one composed of 19 fetuses from diabetic mothers (FDM) and the other of 20 fetuses from nondiabetic mothers. Seventeen measurements were taken on the deciduous dentition of right and left mandibles. The degree of FA was assessed by comparing FDM to fetuses of normal mothers by (a) correlation between right and left sides, and (b) analysis of variation di…
Effects of fronto‐occipital artificial cranial vault modification on the cranial base and face
Artificial reshaping of the cranial vault has been practiced by many human groups and provides a natural experiment in which the relationships of neurocranial, cranial base, and facial growth can be investigated. We test the hypothesis that fronto‐occipital artificial reshaping of the neurocranial vault results in specific changes in the cranial base and face. Fronto‐occipital reshaping results from the application of pads or a cradle board which…
Cranial deformation and nonmetric trait variation
Cranial deformation is known to influence many traditional craniometric variables, but its effects on nonmetric trait variation are not well characterized. In this study, we examine the effects of three types of deformation (annular, lambdoid flattening, and fronto‐occipital) on nonmetric traits, using a large sample of protohistoric and prehistoric crania. Our results indicate that a few traits are increased or decreased in relative frequency by…
Effects of annular cranial vault modification on the cranial base and face
Artificial modification of the cranial vault was practiced by a number of prehistoric and protohistoric populations, frequently during an infant's first year of life. We test the hypothesis that, in addition to its direct effects on the cranial vault, annular cranial vault modification has a significant indirect effect on cranial base and facial morphology. Two skeletal series from the Pacific Northwest Coast, which include both nonmodified and m…
Fluctuating asymmetry in fetuses of diabetic rhesus macaques
This study examines dental fluctuating asymmetry (FA) in two samples of fetal rhesus monkeys, one composed of 19 fetuses from diabetic mothers (FDM) and the other of 20 fetuses from nondiabetic mothers. Seventeen measurements were taken on the deciduous dentition of right and left mandibles. The degree of FA was assessed by comparing FDM to fetuses of normal mothers by (a) correlation between right and left sides, and (b) analysis of variation di…
Asymmetric vault modification in Hopi crania
Cradleboarding was practiced by numerous prehistoric and historic populations, including the Hopi. In this group, one result of cra‐dleboarding was bilateral or asymmetric flattening of the posterior occipital. We test whether cradleboarding had significant effects on the morphology of the cranial vault, cranial base, and face. Additionally, we examine associations between direction of flattening and asymmetric craniofacial growth. A skeletal sam…
Fluctuating asymmetry in fetuses of diabetic rhesus macaques
This study examines dental fluctuating asymmetry (FA) in two samples of fetal rhesus monkeys, one composed of 19 fetuses from diabetic mothers (FDM) and the other of 20 fetuses from nondiabetic mothers. Seventeen measurements were taken on the deciduous dentition of right and left mandibles. The degree of FA was assessed by comparing FDM to fetuses of normal mothers by (a) correlation between right and left sides, and (b) analysis of variation di…
The Role of Genetics in Craniofacial Morphology and Growth
Infrastructures are material forms that allow for the possibility of exchange over space. They are the physical networks through which goods, ideas, waste, power, people, and finance are trafficked. In this article I trace the range of anthropological ...Read More
Effects of fronto‐occipital artificial cranial vault modification on the cranial base and face
Artificial reshaping of the cranial vault has been practiced by many human groups and provides a natural experiment in which the relationships of neurocranial, cranial base, and facial growth can be investigated. We test the hypothesis that fronto‐occipital artificial reshaping of the neurocranial vault results in specific changes in the cranial base and face. Fronto‐occipital reshaping results from the application of pads or a cradle board which…
Effects of annular cranial vault modification on the cranial base and face
Artificial modification of the cranial vault was practiced by a number of prehistoric and protohistoric populations, frequently during an infant's first year of life. We test the hypothesis that, in addition to its direct effects on the cranial vault, annular cranial vault modification has a significant indirect effect on cranial base and facial morphology. Two skeletal series from the Pacific Northwest Coast, which include both nonmodified and m…
Cranial deformation and nonmetric trait variation
Cranial deformation is known to influence many traditional craniometric variables, but its effects on nonmetric trait variation are not well characterized. In this study, we examine the effects of three types of deformation (annular, lambdoid flattening, and fronto‐occipital) on nonmetric traits, using a large sample of protohistoric and prehistoric crania. Our results indicate that a few traits are increased or decreased in relative frequency by…
Asymmetric vault modification in Hopi crania
Cradleboarding was practiced by numerous prehistoric and historic populations, including the Hopi. In this group, one result of cra‐dleboarding was bilateral or asymmetric flattening of the posterior occipital. We test whether cradleboarding had significant effects on the morphology of the cranial vault, cranial base, and face. Additionally, we examine associations between direction of flattening and asymmetric craniofacial growth. A skeletal sam…
Age of epiphyseal closure in tamarins and marmosets
Estimates of the chronological age for animals of unknown age provide useful information for medical, demographic, and evolutionary studies. Skeletal development, as indicated by epiphyseal closure, can be used to estimate an animal's chronological age or specify its stage of development. Many studies of Primate skeletal development have used animals of unknown age, with the order of epiphyseal closure providing a relative age for each animal. Th…
Age of epiphyseal closure in tamarins and marmosets
Estimates of the chronological age for animals of unknown age provide useful information for medical, demographic, and evolutionary studies. Skeletal development, as indicated by epiphyseal closure, can be used to estimate an animal's chronological age or specify its stage of development. Many studies of Primate skeletal development have used animals of unknown age, with the order of epiphyseal closure providing a relative age for each animal. Th…
Subspecific genetic differences in the saddle‐back tamarin ( Saguinus fuscicollis ) postcranial skeleton
Saddle‐back tamarins ( Saguinus fuscicollis ) have been differentiated into subspecies based on coat color and facial morphology. Morphology of first‐generation genetic hybrids can provide an understanding of population differences and evolution that may otherwise be difficult to obtain. This study compares postcranial morphology in two hybrids of saddle‐back tamarins ( S. f. illigeri × S. f. lagonotus and S. f. illigeri × S. f. leucogenys ) to t…
CSViewer for Analysts: II. Analytic Tools and Visualization of Founder Lineages, Social Groups, and Reproduction Dynamics of the Cayo Santiago Rhesus Macaque Colony
The Cayo Santiago (CS) rhesus macaque colony has raised a total of over 11,000 animals in a free‐ranging setting very close to the natural environment. The well‐kept individual and family records, as well as social group management data, have been a valuable source for anthropological research. However, the various sources of data have been stored in separation, and there was no straightforward way for researchers to access them directly. Since 2…
Revisiting Linear Enamel Hypoplasia in Cayo Santiago Rhesus Macaques ( Macaca mulatta ): How a Stress Marker Relates to Environment and Maternal Lineage in a Rare Rhesus Colony With Known Life History
Linear enamel hypoplasias (LEHs) are development defects appearing as lines or grooves on enamel surfaces. Forming when physiological stressors disrupt developing teeth, LEHs provide retrospective insight into stress experienced in early development. Here, LEHs in Cayo Santiago rhesus macaques ( Macaca mulatta ) were observed with respect to decade of birth, whether an individual was transferred from the free‐ranging colony to the captive facilit…
CSViewer for Analysts: I. Building an Integrative Database and Knowledge Model for the Cayo Santiago Rhesus Macaque Colony and Its Derived Skeletal Collections
The Cayo Santiago rhesus colony and its derived skeletal collections provide abundant data made available since its founding in 1938. A project supported by an NSF collaborative grant has been committed to building a database that integrates the genetic and age‐related information of the colony, together with social group interactions and environmental effects, aiming to provide a knowledge model to researchers with insights from this powerful no…
Dental Fluctuating Asymmetry: Environmental Factors Influencing Cayo Santiago Rhesus Macaque ( Macaca mulatta ) Dental Development
Increased fluctuating asymmetry, or random differences between right and left sides, has been associated with developmental stress or developmental instability. This study examines fluctuating asymmetry (FA) of mesio‐distal and bucco‐lingual dimensions of deciduous maxillary molars (m 1 , m 2 ), and permanent maxillary premolars and molars (P 3 , P 4 , M 1 , M 2 ) of 466 rhesus macaques ( Macaca mulatta ) born between 1950 and 2018 from Cayo Sant…
Biology (10 works) · Geography (5 works) · Anatomy (4 works) · Anatomy (4 works) · Archaeology (4 works) · Bat Biology and Ecology Studies (4 works) · Computer Science (4 works) · Crania (4 works) · Genetics (4 works) · Medicine (4 works)