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Development of independence: Sumatran and Bornean orangutans compared

Maria A. van Noordwijk, Simone E.B. Sauren, Nuzuar Abulani Ahbam, Helen C. Morrogh-Bernard, S. Suci Utami Atmoko, and Carel P. van Schaik

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0012
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Among known mammals, orangutans have the longest period of dependence and exclusive association between mother and offspring before a younger sibling is born. Comparison of available data on wild ... More


Innovation and intelligence in orangutans

Anne E. Russon, Carel P. van Schaik, Purwo Kuncoro, Agnes Ferisa, Dwi P. Handayani, and Maria A. van Noordwijk

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0020
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

This chapter examines spontaneous innovation in orangutans using prevalence-based methods for identifying potential innovations in free-ranging populations and comparisons between rehabilitant and ... More


Orangutan rehabilitation and reintroduction: Successes, failures, and role in conservation

Anne E. Russon

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0023
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Projects for rehabilitating then releasing ex-captive orangutans to free forest life have operated continuously, throughout the orangutan’s modern range, on both Borneo and Sumatra, since the 1960s. ... More


A description of the orangutan's vocal and sound repertoire, with a focus on geographic variation

Madeleine E. Hardus, Adriano R. Lameira, Ian Singleton, Helen C. Morrogh-Bernard, Cheryl D. Knott, Marc Ancrenaz, S. Suci Utami Atmoko, and Serge A. Wich

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0004
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

This chapter provides an overview of the sounds and vocalizations that Sumatran and Bornean orangutans produce. The current data set indicates that there are at least 32 different orangutan sounds ... More


Orangutan distribution, density, abundance and impacts of disturbance

Simon J. Husson, Serge A. Wich, Andrew J. Marshall, Rona D. Dennis, Marc Ancrenaz, Rebecca Brassey, Melvin Gumal, Andrew J. Hearn, Erik Meijaard, Togu Simorangkir, and Ian Singleton

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0006
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Knowledge of the density and distribution of the endangered orangutan is essential both for their conservation and to identify ecological factors that limit their population size. The authors of this ... More


Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Serge A. Wich, S Suci Utami Atmoko, Tatang Mitra Setia, and Carel P. van Schaik (eds)

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.001.0001
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

This book describes one of our closest relatives, the orangutan, and the only extant great ape in Asia. It is increasingly clear that orangutan populations show extensive variation in behavioral ... More


Parasites and their impacts on orangutan health

Ivona Foitová, Michael A. Huffman, Nurcahyo Wisnu, and Milan Olšanský

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0010
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Good health results from homeostasis: the balancing, through continuous interaction, of an organism’s myriad dynamic physiological processes. Parasitology allows us to gain important information not ... More


Orangutan cultures revisited

Carel P. van Schaik, Marc Ancrenaz, Reniastoeti Djojoasmoro, Cheryl D. Knott, Helen C. Morrogh-Bernard, Nuzuar Odom Kisar, S. Suci Utami Atmoko, and Maria A. van Noordwijk

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0021
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Recent comparative work has claimed the presence of socially transmitted behavioral innovations, ranging from tool use to sounds produced during nest building, i.e. culture, among wild orangutans. ... More


Orangutan population biology, life history, and conservation: Perspectives from population viability analysis models

Andrew J. Marshall, Robert Lacy, Marc Ancrenaz, Onnie Byers, Simon J. Husson, Mark Leighton, Erik Meijaard, Norm Rosen, Ian Singleton, Suzette Stephens, Kathy Traylor-Holzer, S. Suci Utami Atmoko, Carel P. van Schaik, and Serge A. Wich

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0022
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Orangutan populations are particularly susceptible to local extinction due to hunting, habitat loss, and fragmentation because they live at low population densities, grow slowly, and reproduce ... More


The functional significance of variation in jaw form in orangutans: The African apes as an ecogeographic model

Andrea B. Taylor

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0002
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

African apes and orangutans experience temporal and spatial fluctuations in fruit availability with similar behavioral consequences. Relying on the African apes as a comparative ecogeographic model, ... More


Orangutan positional behavior: Interspecific variation and ecological correlates

Susannah K. S. Thorpe and Robin H. Crompton

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0003
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Successful foraging, reproductive, and predator avoidance strategies in orangutans rely on their ability to navigate the complex three-dimensional habitat of tropical rainforest canopy. This chapter ... More


The effects of forest phenology and floristics on populations of Bornean and Sumatran orangutans: Are Sumatran forests better orangutan habitat than Bornean forests? †

Andrew J. Marshall, Marc Ancrenaz, Francis Q. Brearley, Gabriella M. Fredriksson, Nilofer Ghaffar, Matt Heydon, Simon J. Husson, Mark Leighton, Kim R. McConkey, Helen C. Morrogh-Bernard, John Proctor, Carel P. van Schaik, Carey P. Yeager, and Serge A. Wich

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0007
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

It has long been assumed that Sumatran forests are of higher quality for orangutans than Bornean forests, and that this is both the proximate and ultimate cause of many of the differences in ... More


Orangutan activity budgets and diet: A comparison between species, populations and habitats

Helen C. Morrogh-Bernard, Simon J. Husson, Cheryl D. Knott, Serge A. Wich, Carel P. van Schaik, Maria A. van Noordwijk, Isabelle Lackman-Ancrenaz, Andrew J. Marshall, Tomoko Kanamori, Noko Kuze, and Ramlan bin Sakong

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0008
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

The chapter examines differences in the activity budgets of wild orangutans (Pongo spp.) within and between a large number of study sites in Sumatra and Borneo. The authors of the chapter found that ... More


Geographic variation in orangutan diets

Anne E. Russon, Serge A. Wich, Marc Ancrenaz, Tomoko Kanamori, Cheryl D. Knott, Noko Kuze, Helen C. Morrogh-Bernard, Peter Pratje, Hatta Ramlee, Peter Rodman, Azrie Sawang, Kade Sidiyasa, Ian Singleton, and Carel P. van Schaik

in Orangutans: Geographic Variation in Behavioral Ecology and Conservation

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199213276
eISBN:
9780191707568
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213276.003.0009
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

This chapter explores variation in orangutan diets across their range, based on food lists. The authors of the chapter consolidated orangutan food lists from all available long-term field sites (N = ... More


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