Primatologists have long viewed small fruiting trees, like figs, as the reason for gibbons’ territorial and monogamous behavior. However, at Khao Yai National Park in Thailand where gibbons are prevalent, figs are one of the largest trees in the forest. In this long-term field study, Bartlett takes up this apparent contradiction, and follows gibbons as their major food sources wax and wane over time.This is an important reference on gibbons and the study of small apes which provides a thorough, expansive coverage of the relationship between fruit abundance and diet, range use, and intergroup interactions in Gibbon apes. The Gibbons of Khao Yai: Seasonal Variation in Behavior and Ecology provides an essential resource for students conducting research in this field.

It is a great honor to be asked to introduce this exciting new volume, having been heavily involved in the first comprehensive synthesis in the early 1980s. Gibbons are the most enthralling of primates. On the one hand, they are the most appealing animals, with their upright posture and body shape, facial markings, dramatic arm-swinging locomotion and suspensory postures, and devastating duets; on the other hand, the small apes are the most diverse, hence biologically valuable and informative, of our closest relatives. It is hard for me to believe that it is 40 years to the month since I first set foot on the Malay Peninsula to start my doctoral study of the siamang. I am very proud to have followed in the footsteps of the great pioneer of primate field study, Clarence Ray Carpenter (CR or Ray, who I was fortunate to meet twice, in Pennsylvania and in Zurich), first in Central America (in 1967) and then in Southeast Asia. It is 75 years since he studied howler monkeys on Barro Colorado Island in the Panama Canal Zone. It is 70 years since he studied the white-handed gibbon in Thailand.

Applies an ethnographic perspective to the study of primatesPrimate Ethnographies, 1/e is a collection of first-person accounts of immersive field studies of primates, people, and institutions, revealing the wide spectrum of primate science (primatology). Essays cover such primates as lemurs, New World monkeys, Old World monkeys, and apes. Readers experience the excitement of discovery and the challenges of primate field research. Primate Ethnographies can be used as a textbook or a companion reader.

Hylobatids (gibbons and siamangs) are the smallest of the apes distinguished by their coordinated duets, territorial songs, arm-swinging locomotion, and small family group sizes. Although they are the most speciose of the apes boasting twenty species living in eleven countries, ninety-five percent are critically endangered or endangered according to the IUCN's Red List of Threatened Species. Despite this, gibbons are often referred to as being 'forgotten' in the shadow of their great ape cousins because comparably they receive less research, funding and conservation attention. This is only the third book since the 1980s devoted to gibbons, and presents cutting-edge research covering a wide variety of topics including hylobatid ecology, conservation, phylogenetics and taxonomy. Written by gibbon researchers and practitioners from across the world, the book discusses conservation challenges in the Anthropocene and presents practice-based approaches and strategies to save these singing, swinging apes from extinction.

Explores male number variation between and within primate species and its effects on male-female relationships.

Some primate field studies have been on-going for decades, covering significant portions of individual life cycles or even multiple generations. In this volume, leading field workers report on the history and infrastructure of their projects in Madagascar, Africa, Asia and South America. More importantly, they provide summaries of their long-term research efforts on primate behaviour, ecology and life history, highlighting insights that were only possible because of the long-term nature of the study. The chapters of this volume collectively outline the many scientific reasons for studying primate behaviour, ecology and demography over multiple generations. This kind of research is typically necessitated by the relatively slow life histories of primates. Moreover, a complete understanding of social organization and behaviour, factors often influenced by rare but important events, requires long-term data collection. Finally, long-term field projects are also becoming increasingly important foci of local conservation activities.

Primatologists have long viewed small fruiting trees, like figs, as the reason for gibbons’ territorial and monogamous behavior. However, at Khao Yai National Park in Thailand where gibbons are prevalent, figs are one of the largest trees in the forest. In this long-term field study, Bartlett takes up this apparent contradiction, and follows gibbons as their major food sources wax and wane over time.This is an important reference on gibbons and the study of small apes which provides a thorough, expansive coverage of the relationship between fruit abundance and diet, range use, and intergroup interactions in Gibbon apes. The Gibbons of Khao Yai: Seasonal Variation in Behavior and Ecology provides an essential resource for students conducting research in this field.