Charles H Janson
Datos Biográficos
| ID | 79551 |
|---|---|
| NOMBRE | Charles H Janson |
| NOMBRES | Charles H |
| APELLIDO | Janson |
| FIRMA | JANSON C H |
| AFILIACIONES | State University of New York |
| ORCID | 0000-0001-6839-4796 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 36 |
| TOTAL DE CITAS | 104 |
| TOTAL COMO AUTOR | 35 |
| TOTAL COMO EDITOR | 1 |
| PRIMER AÑO DE PUBLICACIÓN | 1954 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2017 |
| ÍNDICE H | 5 |
Evolutionary Ecology of Primate Social Structure
This chapter examines attempts to integrate several of the preceding hypotheses into a more general theory of social structure. It presents a few hypotheses relating to other aspects of social structure. The chapter discusses the shortcomings of existing data and study methods, and suggests some possible solutions. It focuses on the possible use of these studies in our understanding of human social behavior. The chapter examines examples of studi…
How far do Neotropical primates disperse seeds
Seed dispersal distance (SDD) is a vital component of vertebrate-mediated seed dispersal process: the average distance at which seeds are deposited away from the parent plant represents the starting template of plant regeneration. We present a simple model to explain and predict observed measures of average dispersal distance and we hypothesize that it is a consequence of how long seeds are retained in the disperser's gut, how rapidly the dispers…
Spatial memory in capuchin monkeys (Argentina)
fuerza selectiva en el desarrollo de las complejidades cerebrales avanzadas (Milton, 1981), permitiendo el abordaje de la conducta de búsqueda del alimento como uno de los ámbitos más accesibles a un enfoque cognitivo comparado (Tujague, 2013).Si se asume que el hecho de minimizar las distancias recorridas hacia fuentes de recurso es un objetivo de la estrategia de
Long-Term Spatial Memory and Learning Set Formation in Captive Capuchin Monkeys (Cebus libidinosus = Sapajus cay)
Death of the (traveling) salesman
Several comparative studies have linked larger brain size to a fruit-eating diet in primates and other animals. The general explanation for this correlation is that fruit is a complex resource base, consisting of many discrete patches of many species, each with distinct nutritional traits, the production of which changes predictably both within and between seasons. Using this information to devise optimal spatial foraging strategies is among the …
Effect of Fruit Scarcity on Use of Spatial Memory in a Seed Predator, White-faced Saki (Pithecia pithecia)
Anointing variation across wild capuchin populations
The frequency of anointing bouts and the materials used for self‐ and social anointing vary across capuchin species in captivity, but there is little published data on capuchin anointing in the wild. Here we present previously unpublished data on anointing behaviors from capuchin monkey populations at ten different field sites and incorporate these data into a review of the anointing literature for captive and wild capuchins. Using a comparative …
Reconciling Rigor and Range
Primate socioecology at the crossroads
Attempts to explain differences in the size and structure of primate groups have argued that they are a consequence of variation in the intensity of feeding competition caused by contrasts in food distribution. However, although feeding competition can limit the size of female groups, many other factors affect the costs and the benefits of sociality to females and contribute to differences in group size. Moreover, interspecific differences in soc…
Quantifying Primate Food Distribution and Abundance for Socioecological Studies
The XXIIIrd Congress of the International Primatological Society
Infanticide in black capuchin monkeys ( Cebus apella nigritus ) in Iguazú National Park, Argentina
We report here one observed and two potential cases of infanticide during a brief period of 1 month after a dominant male replacement in one group of black capuchin monkeys in Iguazú National Park, Argentina. We also compile infant disappearances and demographic data in seven groups followed from 1–14 years. Behavioral and molecular data showed that the probability that an infanticidal male would kill his own progeny is very low in this species. …
Predicting the frequency of food‐related agonism in white‐faced capuchin monkeys ( Cebus capucinus ), using a novel focal‐tree method
Food abundance and distribution have played a central role in the conceptual theory of primate socioecology [Janson, Behaviour 105:53–76, 1988; Isbell, Behavioral Ecology 2:143–155, 1991; Sterck et al., Behavioral Ecology and Sociobiology 41:291–309, 1997; van Schaik, In: Standen V, Foley RA, editors, Comparative Socioecology . Oxford: Blackwell. p 195–218, 1989]. This theory predicts that agonistic (“contest”) competition should occur when food …
Everything you ever wanted to know about capuchins
Pithecia pithecia 's behavioral response to decreasing fruit abundance
In this article we describe the behavioral responses of a group of white‐faced sakis' ( Pithecia pithecia ) to fruit and water scarcity. Six sakis were observed on Round Island in Guri Lake, Venezuela, between March and May 1996. These months are considered the dry season and the beginning of the wet season. Sakis specialize in eating seeds. During the present study only one tree species, Licania discolor (Chrysobalanaceae), fruited in substantia…
How important are affiliation and cooperation? A reply to Sussman et al
The evolution of culture
This and the next issue of Evolutionary Anthropology are devoted to presenting the most recent advances in our understanding of the evolution of culture in non‐human primates and humans. This effort was stimulated in part by the recent explosion of comparative evidence for extensive communicative and material culture in two great apes, chimpanzees 1 and orangutans. 2 Before this evidence accumulated, it was easy for anthropologists to maintain th…
Response Toward Novel Foods and Novel Objects in Wild Cebus apella
Reproductive Socioecology of Tufted Capuchins (Cebus apella nigritus) in Northeastern Argentina
When will the stork arrive? Patterns of birth seasonality in neotropical primates
We review and discuss the ultimate and proximate causes of birth seasonality in Neotropical primates and the seasonal patterns shown by each genus within this group. Our review of the literature shows that most New World monkey populations studied so far show some degree of birth seasonality. Photoperiod is the most important proximate cue used by populations living at relatively high latitudes to time their reproductive events, but almost nothin…
Infanticide by Males and its Implications
Male primates, carnivores and rodents sometimes kill infants that they did not sire. Infanticide by males is a relatively common phenomenon in these groups, but tends to be rare in any given species. Is this behavior pathological or accidental, or does it reflect a conditional reproductive strategy for males in certain circumstances? In this book, case studies and reviews confirm the adaptive nature of infanticide in males in primates, and help t…
Primate socio-ecology
Resources and primate community structure
INTRODUCTION The concept of carrying capacity is fundamental in determining a species' density and biomass, which enter into the equations used in ecological theory to predict species diversity and community structure (MacArthur, 1972). Therefore, you might think that a great deal was known about how to determine the carrying capacity of species in nature; however, this is not the case. In the vast majority of species, if the carrying capacity is…
Predicting group size in primates
We present a direct test of the long-standing hypothesis that food competition limits primate group size. Group size is a critical social variable because it constrains most other aspects of social organization. We develop a simple population-specific index of indirect feeding competition based on daily foraging costs. This index explains nearly two-thirds of between-population variation in mean group sizes of mostly fruit-eating (but not of most…
Infanticide by Males and its Implications
"In this book, case studies and reviews confirm the adaptive nature of infanticide in males in primates and other animals, and help to predict which species should be vulnerable to it. Much of the book is devoted to exploring the evolutionary consequences of the threat of infanticide by males for social and reproductive behavior and physiology. Written for graduate students and researchers in animal behavior, behavioral ecology, biological anthro…
Morphological and behavioral adaptations for foraging in generalist primates
In addition to being frugivorous, Cebus and Saimiri stand out among the New World primates of similar body size in being heavily dependent on animal matter for protein (faunivory). A detailed description of the morphology and behavior of the two genera is presented with the object of evaluating the interaction and respective contributions of morphological and behavioral adaptations to foraging patterns. Our conclusions include the following: Firs…
Primate socioecology at the crossroads
Attempts to explain differences in the size and structure of primate groups have argued that they are a consequence of variation in the intensity of feeding competition caused by contrasts in food distribution. However, although feeding competition can limit the size of female groups, many other factors affect the costs and the benefits of sociality to females and contribute to differences in group size. Moreover, interspecific differences in soc…
Reproductive Socioecology of Tufted Capuchins (Cebus apella nigritus) in Northeastern Argentina
Response Toward Novel Foods and Novel Objects in Wild Cebus apella
Reconciling Rigor and Range
Quantifying Primate Food Distribution and Abundance for Socioecological Studies
Effect of Fruit Scarcity on Use of Spatial Memory in a Seed Predator, White-faced Saki (Pithecia pithecia)
La Communauté Europeénne du Charbon et de L'acier
Spatial memory in capuchin monkeys (Argentina)
fuerza selectiva en el desarrollo de las complejidades cerebrales avanzadas (Milton, 1981), permitiendo el abordaje de la conducta de búsqueda del alimento como uno de los ámbitos más accesibles a un enfoque cognitivo comparado (Tujague, 2013).Si se asume que el hecho de minimizar las distancias recorridas hacia fuentes de recurso es un objetivo de la estrategia de
Long-Term Spatial Memory and Learning Set Formation in Captive Capuchin Monkeys (Cebus libidinosus = Sapajus cay)
Wir Verteidigen Europa! Legenden und Tatsachen über die Atlantikarmee
Journal Article Wir Verteidigen Europa! Legenden und Tatsachen über die Atlantikarmee Get access Wir Verteidigen Europa! Legenden und Tatsachen über die Atlantikarmee. By Fred Simson. Bern, Verlag Paul Haupt; Tübingen, Katzmann-Verlag, 1952. 197 pp. Illus. Maps. Charts. 8′ ′×514′ ′Sw. frs. 10. Charles Janson Charles Janson Search for other works by this author on: Oxford Academic Google Scholar International Affairs, Volume 30, Issue 3, July 1954…
La Communauté Europeénne du Charbon et de L'acier
La Communauté Européenne du Charbon et de l'Acier
Journal Article La Communauté Européenne du Charbon et de l'Acier: Par un Groupe d'Étude de l'Institut des Relations Internationales Get access La Communauté Européenne du Charbon et de l'Acier: Par un Groupe d'Étude de l'Institut des Relations Internationales. Préface by M. Henri RolinBruxelles, Institut des Relations Internationales, 1953. 338 pp. 91⁄2′′ × 61⁄4′′. Bel.frs. 150. Charles Janson Charles Janson Search for other works by this author…
Female Choice and Mating System of the Brown Capuchin Monkey Cebus apella (Primates
and Summary The mating system of wild brown capuchin monkeys, Cebus apella , was studied during four years in Peruvian rainforest. The most striking feature of estrus is active continuous solicitation of males by females. During the first three to four days, the female continuously follows the dominant male of the group, approaching him with grimaces, distinctive vocalizations, and submissive‐like postures. Although the female frequently attempts…
Aggresive competition and individual food consumption in wild brown capuchin monkeys (Cebus apella)
The Socioecology of Primate Groups
The literature on effects of habitat fragmentation on biodiversity is huge. It is also very diverse, with different authors measuring fragmentation in different ways and, as a consequence, drawing different conclusions regarding both the ...Read More
Recognizing the Many Faces of Primate Food Competition
The evolution of primate behavior. 2nd edition
Primate social systems
Morphological and behavioral adaptations for foraging in generalist primates
In addition to being frugivorous, Cebus and Saimiri stand out among the New World primates of similar body size in being heavily dependent on animal matter for protein (faunivory). A detailed description of the morphology and behavior of the two genera is presented with the object of evaluating the interaction and respective contributions of morphological and behavioral adaptations to foraging patterns. Our conclusions include the following: Firs…
Infanticide
Predicting group size in primates
We present a direct test of the long-standing hypothesis that food competition limits primate group size. Group size is a critical social variable because it constrains most other aspects of social organization. We develop a simple population-specific index of indirect feeding competition based on daily foraging costs. This index explains nearly two-thirds of between-population variation in mean group sizes of mostly fruit-eating (but not of most…
Resources and primate community structure
INTRODUCTION The concept of carrying capacity is fundamental in determining a species' density and biomass, which enter into the equations used in ecological theory to predict species diversity and community structure (MacArthur, 1972). Therefore, you might think that a great deal was known about how to determine the carrying capacity of species in nature; however, this is not the case. In the vast majority of species, if the carrying capacity is…
When will the stork arrive? Patterns of birth seasonality in neotropical primates
We review and discuss the ultimate and proximate causes of birth seasonality in Neotropical primates and the seasonal patterns shown by each genus within this group. Our review of the literature shows that most New World monkey populations studied so far show some degree of birth seasonality. Photoperiod is the most important proximate cue used by populations living at relatively high latitudes to time their reproductive events, but almost nothin…
Infanticide by Males and its Implications
Male primates, carnivores and rodents sometimes kill infants that they did not sire. Infanticide by males is a relatively common phenomenon in these groups, but tends to be rare in any given species. Is this behavior pathological or accidental, or does it reflect a conditional reproductive strategy for males in certain circumstances? In this book, case studies and reviews confirm the adaptive nature of infanticide in males in primates, and help t…
Primate socio-ecology
Reproductive Socioecology of Tufted Capuchins (Cebus apella nigritus) in Northeastern Argentina
The evolution of culture
This and the next issue of Evolutionary Anthropology are devoted to presenting the most recent advances in our understanding of the evolution of culture in non‐human primates and humans. This effort was stimulated in part by the recent explosion of comparative evidence for extensive communicative and material culture in two great apes, chimpanzees 1 and orangutans. 2 Before this evidence accumulated, it was easy for anthropologists to maintain th…
Response Toward Novel Foods and Novel Objects in Wild Cebus apella
Everything you ever wanted to know about capuchins
Pithecia pithecia 's behavioral response to decreasing fruit abundance
In this article we describe the behavioral responses of a group of white‐faced sakis' ( Pithecia pithecia ) to fruit and water scarcity. Six sakis were observed on Round Island in Guri Lake, Venezuela, between March and May 1996. These months are considered the dry season and the beginning of the wet season. Sakis specialize in eating seeds. During the present study only one tree species, Licania discolor (Chrysobalanaceae), fruited in substantia…
How important are affiliation and cooperation? A reply to Sussman et al
Predicting the frequency of food‐related agonism in white‐faced capuchin monkeys ( Cebus capucinus ), using a novel focal‐tree method
Food abundance and distribution have played a central role in the conceptual theory of primate socioecology [Janson, Behaviour 105:53–76, 1988; Isbell, Behavioral Ecology 2:143–155, 1991; Sterck et al., Behavioral Ecology and Sociobiology 41:291–309, 1997; van Schaik, In: Standen V, Foley RA, editors, Comparative Socioecology . Oxford: Blackwell. p 195–218, 1989]. This theory predicts that agonistic (“contest”) competition should occur when food …
Infanticide in black capuchin monkeys ( Cebus apella nigritus ) in Iguazú National Park, Argentina
We report here one observed and two potential cases of infanticide during a brief period of 1 month after a dominant male replacement in one group of black capuchin monkeys in Iguazú National Park, Argentina. We also compile infant disappearances and demographic data in seven groups followed from 1–14 years. Behavioral and molecular data showed that the probability that an infanticidal male would kill his own progeny is very low in this species. …
The XXIIIrd Congress of the International Primatological Society
Biology (30 obras) · Primate Behavior and Ecology (29 obras) · Animal Behavior and Reproduction (16 obras) · Ecology (14 obras) · Ecology (13 obras) · Primate (13 obras) · Psychology (12 obras) · Animal Vocal Communication and Behavior (10 obras) · Evolutionary biology (10 obras) · Geography (10 obras)