Marilyn A Norconk
Biographic Data
| ID | 84595 |
|---|---|
| NAME | Marilyn A Norconk |
| GIVEN NAMES | Marilyn A |
| FAMILY NAME | Norconk |
| SIGNATURE | NORCONK M A |
| AFFILIATIONS | Kent State University |
| ORCID | 0000-0002-7995-8646 |
| VERIFIED | Yes |
| TOTAL WORKS | 29 |
| TOTAL CITATIONS | 174 |
| AUTHOR COUNT | 29 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1990 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 6 |
Can we eliminate the primate pet trade in the United States
International laws and conventions have gone a long way in reducing the number of wild primates entering the United States of America (US) for the pet trade. However, breeding primates for sale to private owners in the United States continues, and individual states present a bewildering array of laws and regulations on the holding of primates as pets. As primatologists we can act to decrease the demand for primate pets by (1) speaking out on the …
Mentorship and professional growth for conservationists in primate‐range countries
Highlights By providing mentorship and by enhancing professional development skills, primatologists can help to build the professional capacity of emerging conservationists. Actions can be adjusted to specific cultural contexts and interwoven into teaching and research programs. Sharing stories about pivotal career moments creates closer connections with mentees and helps to stimulate dialogue on issues of concern. Experiential and networking opp…
Historical antecedents and recent innovations in pitheciid (titi, saki, and uakari) feeding ecology
The modern pitheciids (titis, sakis, and uakaris) of northern South America represent one of the earliest radiations of platyrrhines and demonstrate morphological adaptations and ecological strategies for seed eating. While seeds can provide reliable resources for relatively long periods of time, they are often well protected by thick husks and hard seed coverings. Seeds also tend to be rich in lipids, but they may also be high in indigestible fi…
Reducing the primate pet trade: Actions for primatologists
This commentary emerged from a panel presentation at the International Primatological Society Congress in Nairobi, Kenya, 2018. The goal was to provide regional updates on the status of primate removal from habitat countries, especially for the pet trade, and develop guidelines that could help primatologists address this critical problem. The trade in live primates includes those used as pets, in entertainment, and as subjects of biomedical exper…
Commentaries on field‐laboratory collaborations in primatology: Introduction to a special section of the American Journal of Primatology
Finding better approaches to bridge field and laboratory primate research was identified as an important goal in a recent (2017) member survey of the American Society of Primatologists. Collaborative field‐captive research was identified by >60% of respondents as somewhat or very underrepresented in the Society. In this introductory essay for a special section of American Journal of Primatology , I review commonalities and differences in the pape…
Membership analysis of the American Society of Primatologists through 2015 and planning for future
A detailed analysis of membership trends of the American Society of Primatologists (ASP) has been published every 10 years since 1983 (Dukelow et al., 1983; French, 1993; Schapiro, 2003). This report is the fourth such analysis. We provide a summary of recent trends including an analysis for the years 2012 (the scheduled 10‐year interval) and 2015. Significant events occurred in scientific primatology between 2012 and 2015, which we believe may h…
Bearded saki feeding strategies on an island in Lago Guri, Venezuela
Free-ranging bearded sakis (Chiropotes spp.) live in relatively large social groups (22-65+), inhabit very large home ranges (200-1,000 ha), and travel long distances (1.8 to >7 km) each day. While these characteristics would seem to reduce their ability to occupy habitat fragments, several studies suggest otherwise. The key to their success may lie in their dietary adaptations. Bearded sakis are strongly frugivorous, but are primarily seed eater…
Strategies for navigating large areas: A GIS spatial ecology analysis of the bearded saki monkey, Chiropotes sagulatus , in Suriname
Animals with long day paths and large home ranges expend a considerable amount of energy on travel. Studies have shown that in the interest of reducing energy expenditure, animals selectively navigate the landscape using a variety of strategies. However, these studies have generally focused on terrestrial animals. Here we present data on an exceedingly mobile arboreal animal, bearded saki monkeys, in a topographically variable landscape in Surina…
Primates in 21st century ecosystems: Does primate conservation promote ecosystem conservation
Contributors to this issue of the American Journal of Primatology were among the participants in an invited symposium at the 2008 Association for Tropical Biology and Conservation meeting in Paramaribo, Suriname. They were asked to assess how essential primates are to tropical ecosystems and, given their research interests, discuss how primate research contributes to the broader understanding about how ecosystems function. This introduction to th…
Within‐group social bonds in white‐faced saki monkeys ( Pithecia pithecia ) display male–female pair preference
White‐faced saki monkeys ( Pithecia pithecia ) lack most of the behavioral and physical traits typical of primate monogamy [Fuentes, 1999 ]. In order to determine if social bonds in this species reflect patterns displayed by pair‐bonded groups or larger multimale–multifemale groups, we draw on 17 months of data collected on wild white‐faced sakis at Brownsberg Nature Park, Suriname. We analyzed within‐group social bonds for three habituated group…
Optimal foraging on the roof of the world: Himalayan langurs and the classical prey model
Optimal foraging theory has only been sporadically applied to nonhuman primates. The classical prey model, modified for patch choice, predicts a sliding “profitability threshold” for dropping patch types from the diet, preference for profitable foods, dietary niche breadth reduction as encounter rates increase, and that exploitation of a patch type is unrelated to its own abundance. We present results from a 1‐year study testing these predictions…
Himalayan Semnopithecus entellus at Langtang National Park, Nepal: Diet, Activity Patterns, and Resources
Long-term Study of Group Dynamics and Female Reproduction in Venezuelan Pithecia pithecia
Program and Conference Schedule
Variation on Frugivory: The Diet of Venezuelan White-Faced Sakis
Digesta passage and fiber digestibility in captive white‐faced sakis ( Pithecia pithecia )
Wild white‐faced sakis ( Pithecia pithecia ) ingest primarily seeds that provide a diet that is lipid‐rich and moderately high in dietary fiber. Although little anatomical information is available on sakis, evidence from other vertebrate seed predators suggests that such a diet is correlated with adaptations in gut morphology or physiology. Milton [1984] reported a 20 hr transit time (TT=transit time or time of first appearance in feces) of a par…
On the Move: How and Why Animals Travel in Groups
On the Move: How and Why Animals Travel in Groups. Sue Boinski and Paul A. Garber. eds. Chicago: Chicago University Press, 2000. 811 pp
The Nonhuman Primates
The Nonhuman Primates. Phyllis Dolhinow and Agustín Fuentes. eds. Mountain View, CA. Mayfield Publishing Co., 1999. 340 pp
Seed dispersal by neotropical seed predators
From a plant's perspective, the difference between a seed predator and a seed disperser should be straightforward: attract animals that will disperse seeds and defend seeds from potential predators. Unlike pulp-eating frugivores, seed predators regularly encounter diverse plant protective mechanisms. The purpose of this paper is to examine feeding constraints, morphological adaptations, and the mechanical process of seed predation. While there is…
Seed dispersal by neotropical seed predators
Seed predation by monkeys and macaws in eastern Venezuela: Preliminary findings
Remembrance of Warren G. Kinzey (1935-1994)
Remembrance of Warren G. Kinzey (1935‐1994)
Challenge of neotropical frugivory: Travel patterns of spider monkeys and bearded sakis
We compared travel patterns of two neotropical frugivores, Ateles paniscus (black spider monkeys) and Chiropotes satanas (bearded sakis), during a 6‐month study at Raleighvallen‐Voltzberg Nature Reserve in Surinam. Ateles were typically found in small foraging parties that changed in size and composition throughout the day. Chiropotes troops moved from one feeding area to the next, fragmenting “locally” when they entered an area with more than on…
Physical and chemical properties of fruit and seeds eaten byPithecia andChiropotes in Surinam and Venezuela
Hardness as a basis of fruit choice in two sympatric primates
Fruit color and size are significant determinants of food choice in mammals and birds, but hardness, an important physical property of fruit and seeds, has generally been overlooked as a determinant of food choice in studies of mammalian foraging behavior. Two methods were used to determine fruit hardness during a field study of two sympatric primates, the black spider monkey ( Ateles paniscus ) and the bearded saki monkey ( Chiropotes satanas ) …
Physical and chemical properties of fruit and seeds eaten byPithecia andChiropotes in Surinam and Venezuela
Variation on Frugivory: The Diet of Venezuelan White-Faced Sakis
Himalayan Semnopithecus entellus at Langtang National Park, Nepal: Diet, Activity Patterns, and Resources
Optimal foraging on the roof of the world: Himalayan langurs and the classical prey model
Optimal foraging theory has only been sporadically applied to nonhuman primates. The classical prey model, modified for patch choice, predicts a sliding “profitability threshold” for dropping patch types from the diet, preference for profitable foods, dietary niche breadth reduction as encounter rates increase, and that exploitation of a patch type is unrelated to its own abundance. We present results from a 1‐year study testing these predictions…
Long-term Study of Group Dynamics and Female Reproduction in Venezuelan Pithecia pithecia
Introductory remarks: Ecological and behavioral correlates of polyspecific primate troops
Mechanisms promoting stability in mixed Saguinus mystax and S. fuscicollis troops
Mixed‐species troops composed of two species of tamarin monkeys, and rarely other ceboids, occur throughout much of western Amazonia and are notable for their long‐term stability. This study identified several variables that appeared to promote mixed‐species troop cohesion and yet maintained spatial segregation between species. Three variables enhanced in terspecific spatial segregation: differences in support use, vertical stratification, and in…
Hardness as a basis of fruit choice in two sympatric primates
Fruit color and size are significant determinants of food choice in mammals and birds, but hardness, an important physical property of fruit and seeds, has generally been overlooked as a determinant of food choice in studies of mammalian foraging behavior. Two methods were used to determine fruit hardness during a field study of two sympatric primates, the black spider monkey ( Ateles paniscus ) and the bearded saki monkey ( Chiropotes satanas ) …
Predation by jaguar on howler monkeys ( Alouatta seniculus ) in Venezuela
We document the loss of all but the youngest member of a troop of six howler monkeys due to probable jaguar predation during a 7‐month period in 1988. The formation of Guri Lake resulted in forest fragmentation which forced monkeys into new and unfamiliar areas and altered the balance of predator and prey populations, and may thus have contributed indirectly to the success of the jaguar. The selection of defoliated (dead) trees for sleeping sites…
Physical and chemical properties of fruit and seeds eaten byPithecia andChiropotes in Surinam and Venezuela
Challenge of neotropical frugivory: Travel patterns of spider monkeys and bearded sakis
We compared travel patterns of two neotropical frugivores, Ateles paniscus (black spider monkeys) and Chiropotes satanas (bearded sakis), during a 6‐month study at Raleighvallen‐Voltzberg Nature Reserve in Surinam. Ateles were typically found in small foraging parties that changed in size and composition throughout the day. Chiropotes troops moved from one feeding area to the next, fragmenting “locally” when they entered an area with more than on…
Remembrance of Warren G. Kinzey (1935-1994)
Remembrance of Warren G. Kinzey (1935‐1994)
Seed predation by monkeys and macaws in eastern Venezuela: Preliminary findings
Seed dispersal by neotropical seed predators
From a plant's perspective, the difference between a seed predator and a seed disperser should be straightforward: attract animals that will disperse seeds and defend seeds from potential predators. Unlike pulp-eating frugivores, seed predators regularly encounter diverse plant protective mechanisms. The purpose of this paper is to examine feeding constraints, morphological adaptations, and the mechanical process of seed predation. While there is…
Seed dispersal by neotropical seed predators
The Nonhuman Primates
The Nonhuman Primates. Phyllis Dolhinow and Agustín Fuentes. eds. Mountain View, CA. Mayfield Publishing Co., 1999. 340 pp
Digesta passage and fiber digestibility in captive white‐faced sakis ( Pithecia pithecia )
Wild white‐faced sakis ( Pithecia pithecia ) ingest primarily seeds that provide a diet that is lipid‐rich and moderately high in dietary fiber. Although little anatomical information is available on sakis, evidence from other vertebrate seed predators suggests that such a diet is correlated with adaptations in gut morphology or physiology. Milton [1984] reported a 20 hr transit time (TT=transit time or time of first appearance in feces) of a par…
On the Move: How and Why Animals Travel in Groups
On the Move: How and Why Animals Travel in Groups. Sue Boinski and Paul A. Garber. eds. Chicago: Chicago University Press, 2000. 811 pp
Program and Conference Schedule
Variation on Frugivory: The Diet of Venezuelan White-Faced Sakis
Long-term Study of Group Dynamics and Female Reproduction in Venezuelan Pithecia pithecia
Himalayan Semnopithecus entellus at Langtang National Park, Nepal: Diet, Activity Patterns, and Resources
Optimal foraging on the roof of the world: Himalayan langurs and the classical prey model
Optimal foraging theory has only been sporadically applied to nonhuman primates. The classical prey model, modified for patch choice, predicts a sliding “profitability threshold” for dropping patch types from the diet, preference for profitable foods, dietary niche breadth reduction as encounter rates increase, and that exploitation of a patch type is unrelated to its own abundance. We present results from a 1‐year study testing these predictions…
Primates in 21st century ecosystems: Does primate conservation promote ecosystem conservation
Contributors to this issue of the American Journal of Primatology were among the participants in an invited symposium at the 2008 Association for Tropical Biology and Conservation meeting in Paramaribo, Suriname. They were asked to assess how essential primates are to tropical ecosystems and, given their research interests, discuss how primate research contributes to the broader understanding about how ecosystems function. This introduction to th…
Within‐group social bonds in white‐faced saki monkeys ( Pithecia pithecia ) display male–female pair preference
White‐faced saki monkeys ( Pithecia pithecia ) lack most of the behavioral and physical traits typical of primate monogamy [Fuentes, 1999 ]. In order to determine if social bonds in this species reflect patterns displayed by pair‐bonded groups or larger multimale–multifemale groups, we draw on 17 months of data collected on wild white‐faced sakis at Brownsberg Nature Park, Suriname. We analyzed within‐group social bonds for three habituated group…
Strategies for navigating large areas: A GIS spatial ecology analysis of the bearded saki monkey, Chiropotes sagulatus , in Suriname
Animals with long day paths and large home ranges expend a considerable amount of energy on travel. Studies have shown that in the interest of reducing energy expenditure, animals selectively navigate the landscape using a variety of strategies. However, these studies have generally focused on terrestrial animals. Here we present data on an exceedingly mobile arboreal animal, bearded saki monkeys, in a topographically variable landscape in Surina…
Bearded saki feeding strategies on an island in Lago Guri, Venezuela
Free-ranging bearded sakis (Chiropotes spp.) live in relatively large social groups (22-65+), inhabit very large home ranges (200-1,000 ha), and travel long distances (1.8 to >7 km) each day. While these characteristics would seem to reduce their ability to occupy habitat fragments, several studies suggest otherwise. The key to their success may lie in their dietary adaptations. Bearded sakis are strongly frugivorous, but are primarily seed eater…
Membership analysis of the American Society of Primatologists through 2015 and planning for future
A detailed analysis of membership trends of the American Society of Primatologists (ASP) has been published every 10 years since 1983 (Dukelow et al., 1983; French, 1993; Schapiro, 2003). This report is the fourth such analysis. We provide a summary of recent trends including an analysis for the years 2012 (the scheduled 10‐year interval) and 2015. Significant events occurred in scientific primatology between 2012 and 2015, which we believe may h…
Commentaries on field‐laboratory collaborations in primatology: Introduction to a special section of the American Journal of Primatology
Finding better approaches to bridge field and laboratory primate research was identified as an important goal in a recent (2017) member survey of the American Society of Primatologists. Collaborative field‐captive research was identified by >60% of respondents as somewhat or very underrepresented in the Society. In this introductory essay for a special section of American Journal of Primatology , I review commonalities and differences in the pape…
Primate Behavior and Ecology (22 works) · Biology (21 works) · Wildlife Ecology and Conservation (15 works) · Ecology (14 works) · Zoology (11 works) · Animal Behavior and Reproduction (9 works) · Geography (7 works) · Habitat (7 works) · Primate (7 works) · Psychology (7 works)