John A Hart
Biographic Data
| ID | 99870 |
|---|---|
| NAME | John A Hart |
| GIVEN NAMES | John A |
| FAMILY NAME | Hart |
| SIGNATURE | HART J A |
| AFFILIATIONS | Wildlife Conservation Society |
| ORCID | 0000-0002-5800-0156 |
| VERIFIED | Yes |
| TOTAL WORKS | 17 |
| TOTAL CITATIONS | 53 |
| AUTHOR COUNT | 17 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1978 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Bonobo (Pan paniscus) Density and Distribution in Central Africa's Largest Rainforest Reserve: Long-term Survey Data Show Pitfalls in Methodological Approaches and Call for Vigilance
Conservation measures require accurate estimates of density and abundance and population trend assessments. The bonobo ( Pan paniscus ) is considered Endangered in the IUCN Red List. This classification assumes that available population data are representative. However, with only 30% of the bonobo’s historic geographical range surveyed, reliable information is needed to assess the species' population status. Here, we use information from 13 surve…
Impact of Hunting on the Lesula Monkey (Cercopithecus lomamiensis) in the Lomami River Basin, Democratic Republic of the Congo
Bonobo social organization at the seasonal forest‐savanna ecotone of the Lomami national park
Examining the relationship between food and primate social organization helps us understand how the environment shaped hominin social evolution. However, there is debate as to whether the social differences between our two closest relatives, bonobos ( Pan paniscus ) and chimpanzees ( Pan troglodytes ), are due to differences in food availability between their respective habitats or to nonenvironmental factors. The most prominent theory is that bo…
A natural history of Chlorocebus dryas from camera traps in Lomami National Park and its buffer zone, Democratic Republic of the Congo, with notes on the species status of Cercopithecus salongo
The natural history and taxonomic status of two central African primates, Cercopithecus dryas and Cercopithecus salongo have long been in question. Recent studies confirmed that C. dryas is a basal member of the savanna monkey clade, and that it prefers dense undergrowth in lowland rainforest. While these studies advanced our knowledge of this enigmatic species, key aspects of its natural history remain poorly documented. Furthermore, the lack of…
Morphological analysis of new Dryas Monkey specimens from the Central Congo Basin: Taxonomic considerations and an emended diagnosis
OBJECTIVES: The little known guenon Cercopithecus dryas has a controversial taxonomic history with some recognizing two taxa (C. dryas and C. salongo) instead of one. New adult specimens from the TL2 region of the central Congo Basin allow further assessment of C. dryas morphology and, along with CT scans of the juvenile holotype, provide ontogenetically stable comparisons across all C. dryas and "C. salongo" specimens for the first time. MATERIA…
The Relationship Between Tool Use and Prey Availability in Chimpanzees (Pan troglodytes schweinfurthii) of Northern Democratic Republic of Congo
A key feature of human behavioral diversity is that it can be constrained by cultural preference (“cultural override”); that is, population-specific preferences can override resource availability. Here we investigate whether a similar phenomenon can be found in one of our closest relatives, as well as the potential impacts of ecological differences on feeding behavior. Our study subjects were different subpopulations of Eastern chimpanzees ( Pan …
Skeletal morphology of the lesula ( Cercopithecus lomamiensis ) and the evolution of guenon locomotor behavior
OBJECTIVES: The guenons (tribe Cercopithecini) are a diverse and primarily arboreal radiation of Old World monkeys from Africa. However, preliminary behavioral observations of the lesula (Cercopithecus lomamiensis), a little-known guenon species described in 2012, report it spending substantial amounts of time on the ground. New specimens allow us to present the first description of lesula postcranial morphology and apply a comparative functional…
Radiocarbon Dating the Iroquoian Occupation of Northern New York
The results of Bayesian analysis using 43 new high-precision AMS radiocarbon dates on maize, faunal remains, and ceramic residues from 18 precontact Iroquoian village sites in Northern New York are presented. Once thought to span AD 1350-1500, the period of occupation suggested by the modeling is approximately AD 1450-1510. This late placement now makes clear that Iroquoians arrived in the region approximately 100 years later than previously thou…
Dietary changes of large herbivores in the Turkana Basin, Kenya from 4 to 1 Ma
Significance Stable carbon isotopes give diet information for both modern and fossil mammals and can be used to classify diets as C 4 grazers, C 3 –C 4 mixed, or C 3 browsers. We show that diets of some major African herbivore lineages have significantly changed over the past 4 million years by comparing fossils from the Turkana Basin in Kenya with modern mammals from East and Central Africa. Some fossil assemblages have no modern analogues in Ea…
Stable isotope-based diet reconstructions of Turkana Basin hominins
Hominin fossil evidence in the Turkana Basin in Kenya from ca . 4.1 to 1.4 Ma samples two archaic early hominin genera and records some of the early evolutionary history of Paranthropus and Homo . Stable carbon isotopes in fossil tooth enamel are used to estimate the fraction of diet derived from C 3 or C 4 resources in these hominin taxa. The earliest hominin species in the Turkana Basin, Australopithecus anamensis , derived nearly all of its di…
Averting biodiversity collapse in tropical forest protected areas
Stable isotope ecology in the Ituri Forest
The ecological basis of hunter-gatherer subsistence in African Rain Forests: The Mbuti of Eastern Zaire
Therapeutic Implications of Viewing Sexual Identity in Terms of Essentialist and Constructionist Theories
One of the most challenging developments in recent historical studies and in empirical research in sociology has been constructionist theories relating to "sexual personalities." The "constructionist" view is that sexual identity is labile and can be therapeutically modified. In clinical work, this has presented an alternative view of the development of social sex-role and sexual orientation. Previously, views of sexual identity as a fixed person…
A Legacy of Promises: Agriculture, Politics, and Ritual in the Morelos Highlands of Mexico
El proletariado industrial en México, 1850-1930
From subsistence to market: A case study of the mbuti net hunters
From subsistence to market: A case study of the mbuti net hunters
Therapeutic Implications of Viewing Sexual Identity in Terms of Essentialist and Constructionist Theories
One of the most challenging developments in recent historical studies and in empirical research in sociology has been constructionist theories relating to "sexual personalities." The "constructionist" view is that sexual identity is labile and can be therapeutically modified. In clinical work, this has presented an alternative view of the development of social sex-role and sexual orientation. Previously, views of sexual identity as a fixed person…
Radiocarbon Dating the Iroquoian Occupation of Northern New York
The results of Bayesian analysis using 43 new high-precision AMS radiocarbon dates on maize, faunal remains, and ceramic residues from 18 precontact Iroquoian village sites in Northern New York are presented. Once thought to span AD 1350-1500, the period of occupation suggested by the modeling is approximately AD 1450-1510. This late placement now makes clear that Iroquoians arrived in the region approximately 100 years later than previously thou…
The Relationship Between Tool Use and Prey Availability in Chimpanzees (Pan troglodytes schweinfurthii) of Northern Democratic Republic of Congo
A key feature of human behavioral diversity is that it can be constrained by cultural preference (“cultural override”); that is, population-specific preferences can override resource availability. Here we investigate whether a similar phenomenon can be found in one of our closest relatives, as well as the potential impacts of ecological differences on feeding behavior. Our study subjects were different subpopulations of Eastern chimpanzees ( Pan …
Skeletal morphology of the lesula ( Cercopithecus lomamiensis ) and the evolution of guenon locomotor behavior
OBJECTIVES: The guenons (tribe Cercopithecini) are a diverse and primarily arboreal radiation of Old World monkeys from Africa. However, preliminary behavioral observations of the lesula (Cercopithecus lomamiensis), a little-known guenon species described in 2012, report it spending substantial amounts of time on the ground. New specimens allow us to present the first description of lesula postcranial morphology and apply a comparative functional…
Bonobo (Pan paniscus) Density and Distribution in Central Africa's Largest Rainforest Reserve: Long-term Survey Data Show Pitfalls in Methodological Approaches and Call for Vigilance
Conservation measures require accurate estimates of density and abundance and population trend assessments. The bonobo ( Pan paniscus ) is considered Endangered in the IUCN Red List. This classification assumes that available population data are representative. However, with only 30% of the bonobo’s historic geographical range surveyed, reliable information is needed to assess the species' population status. Here, we use information from 13 surve…
Morphological analysis of new Dryas Monkey specimens from the Central Congo Basin: Taxonomic considerations and an emended diagnosis
OBJECTIVES: The little known guenon Cercopithecus dryas has a controversial taxonomic history with some recognizing two taxa (C. dryas and C. salongo) instead of one. New adult specimens from the TL2 region of the central Congo Basin allow further assessment of C. dryas morphology and, along with CT scans of the juvenile holotype, provide ontogenetically stable comparisons across all C. dryas and "C. salongo" specimens for the first time. MATERIA…
El proletariado industrial en México, 1850-1930
From subsistence to market: A case study of the mbuti net hunters
A Legacy of Promises: Agriculture, Politics, and Ritual in the Morelos Highlands of Mexico
Therapeutic Implications of Viewing Sexual Identity in Terms of Essentialist and Constructionist Theories
One of the most challenging developments in recent historical studies and in empirical research in sociology has been constructionist theories relating to "sexual personalities." The "constructionist" view is that sexual identity is labile and can be therapeutically modified. In clinical work, this has presented an alternative view of the development of social sex-role and sexual orientation. Previously, views of sexual identity as a fixed person…
The ecological basis of hunter-gatherer subsistence in African Rain Forests: The Mbuti of Eastern Zaire
Stable isotope ecology in the Ituri Forest
Averting biodiversity collapse in tropical forest protected areas
Stable isotope-based diet reconstructions of Turkana Basin hominins
Hominin fossil evidence in the Turkana Basin in Kenya from ca . 4.1 to 1.4 Ma samples two archaic early hominin genera and records some of the early evolutionary history of Paranthropus and Homo . Stable carbon isotopes in fossil tooth enamel are used to estimate the fraction of diet derived from C 3 or C 4 resources in these hominin taxa. The earliest hominin species in the Turkana Basin, Australopithecus anamensis , derived nearly all of its di…
Dietary changes of large herbivores in the Turkana Basin, Kenya from 4 to 1 Ma
Significance Stable carbon isotopes give diet information for both modern and fossil mammals and can be used to classify diets as C 4 grazers, C 3 –C 4 mixed, or C 3 browsers. We show that diets of some major African herbivore lineages have significantly changed over the past 4 million years by comparing fossils from the Turkana Basin in Kenya with modern mammals from East and Central Africa. Some fossil assemblages have no modern analogues in Ea…
Radiocarbon Dating the Iroquoian Occupation of Northern New York
The results of Bayesian analysis using 43 new high-precision AMS radiocarbon dates on maize, faunal remains, and ceramic residues from 18 precontact Iroquoian village sites in Northern New York are presented. Once thought to span AD 1350-1500, the period of occupation suggested by the modeling is approximately AD 1450-1510. This late placement now makes clear that Iroquoians arrived in the region approximately 100 years later than previously thou…
The Relationship Between Tool Use and Prey Availability in Chimpanzees (Pan troglodytes schweinfurthii) of Northern Democratic Republic of Congo
A key feature of human behavioral diversity is that it can be constrained by cultural preference (“cultural override”); that is, population-specific preferences can override resource availability. Here we investigate whether a similar phenomenon can be found in one of our closest relatives, as well as the potential impacts of ecological differences on feeding behavior. Our study subjects were different subpopulations of Eastern chimpanzees ( Pan …
Skeletal morphology of the lesula ( Cercopithecus lomamiensis ) and the evolution of guenon locomotor behavior
OBJECTIVES: The guenons (tribe Cercopithecini) are a diverse and primarily arboreal radiation of Old World monkeys from Africa. However, preliminary behavioral observations of the lesula (Cercopithecus lomamiensis), a little-known guenon species described in 2012, report it spending substantial amounts of time on the ground. New specimens allow us to present the first description of lesula postcranial morphology and apply a comparative functional…
A natural history of Chlorocebus dryas from camera traps in Lomami National Park and its buffer zone, Democratic Republic of the Congo, with notes on the species status of Cercopithecus salongo
The natural history and taxonomic status of two central African primates, Cercopithecus dryas and Cercopithecus salongo have long been in question. Recent studies confirmed that C. dryas is a basal member of the savanna monkey clade, and that it prefers dense undergrowth in lowland rainforest. While these studies advanced our knowledge of this enigmatic species, key aspects of its natural history remain poorly documented. Furthermore, the lack of…
Morphological analysis of new Dryas Monkey specimens from the Central Congo Basin: Taxonomic considerations and an emended diagnosis
OBJECTIVES: The little known guenon Cercopithecus dryas has a controversial taxonomic history with some recognizing two taxa (C. dryas and C. salongo) instead of one. New adult specimens from the TL2 region of the central Congo Basin allow further assessment of C. dryas morphology and, along with CT scans of the juvenile holotype, provide ontogenetically stable comparisons across all C. dryas and "C. salongo" specimens for the first time. MATERIA…
Bonobo social organization at the seasonal forest‐savanna ecotone of the Lomami national park
Examining the relationship between food and primate social organization helps us understand how the environment shaped hominin social evolution. However, there is debate as to whether the social differences between our two closest relatives, bonobos ( Pan paniscus ) and chimpanzees ( Pan troglodytes ), are due to differences in food availability between their respective habitats or to nonenvironmental factors. The most prominent theory is that bo…
Impact of Hunting on the Lesula Monkey (Cercopithecus lomamiensis) in the Lomami River Basin, Democratic Republic of the Congo
Bonobo (Pan paniscus) Density and Distribution in Central Africa's Largest Rainforest Reserve: Long-term Survey Data Show Pitfalls in Methodological Approaches and Call for Vigilance
Conservation measures require accurate estimates of density and abundance and population trend assessments. The bonobo ( Pan paniscus ) is considered Endangered in the IUCN Red List. This classification assumes that available population data are representative. However, with only 30% of the bonobo’s historic geographical range surveyed, reliable information is needed to assess the species' population status. Here, we use information from 13 surve…
Biology (13 works) · Geography (9 works) · Ecology (8 works) · Primate Behavior and Ecology (8 works) · Habitat (6 works) · Pleistocene-Era Hominins and Archaeology (5 works) · Wildlife Ecology and Conservation (5 works) · Zoology (5 works) · Agriculture (4 works) · Ecology (4 works)