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Ranging behavior of orangutan females and social organization

Ian Singleton, Cheryl D. Knott, Helen C. Morrogh-Bernard, Serge A. Wich, 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/9780199213276.003.0013
Subject:
Biology, Animal Biology, Biodiversity / Conservation Biology

Adult female orangutans have large but stable home ranges, varying from as little as 150 ha in some forests up to 850 or more in others. Spatial variation in availability of fruit of key tree species ... 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


Did Primate Trichromacy Evolve for Frugivory or Folivory?

P Sumner and J. D Mollon

in Normal and Defective Colour Vision

Published in print:
2003
Published Online:
April 2010
ISBN:
9780198525301
eISBN:
9780191584947
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198525301.003.0003
Subject:
Psychology, Cognitive Neuroscience

Two hypotheses have been proposed to explain the selective advantage of primate trichromacy. According to the frugivory hypothesis, the advantage lay in finding fruit amongst foliage. In contrast, ... More


Seed dispersal, dormancy, and “bet-hedging” in desert plants

Ahmad Hegazy and Jonathan Lovett-Doust

in Plant Ecology in the Middle East

Published in print:
2016
Published Online:
March 2016
ISBN:
9780199660810
eISBN:
9780191820687
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199660810.003.0007
Subject:
Biology, Plant Sciences and Forestry, Ecology

This chapter considers seed dispersal, dormancy, and evolutionary “bet-hedging” as ways of avoiding drought. Cues that induce and release dormancy, and other environmental triggers for germination, ... More


The Natural Biology of Dietary Ethanol, and its Implications for Primate Evolution

Robert Dudley

in Alcohol and Humans: A Long and Social Affair

Published in print:
2019
Published Online:
January 2020
ISBN:
9780198842460
eISBN:
9780191878442
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198842460.003.0002
Subject:
Psychology, Developmental Psychology

Ethanol derives from the fermentation of simple sugars, and fermentative yeasts are common within terrestrial ecosystems. Animals that routinely consume sugar-rich fruits and nectars thus chronically ... More


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