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Descriptive Attribute Value(s)
Grouping Ape
Observation Number (Open Context) 84
Subspecies Pongo abelii
Common name Sumatran orangutan
Period of study 1976 - 2002
Country or Region Indonesia
Method Direct observation
Wet season February - May, October - December (van Schaik 1986)
Dry season January, June - September (van Schaik 1986)
Environment Mixed dipterocarp
Altitude (m) 350 - 1000 (Russon et al 2009)
% Fruit 67.5
% Leaves 16.4
% Flowers 3.5
% Invertebrates 8.8
% Bark and cambium 2.7
% Other 1.3
Fruit availability peak July - August (van Schaik 1986)
Low fruit availability Unknown
Percentages Based on time spent feeding
Notes Data taken from Table 8.2. Peak leaf emergence comes in December - February, peak flowering occurs in February - April (van Schaik 1986).
Reference Morrogh-Bernard et al., 2009
Scanning method Focal animal sampling. Data collected instantaneously at intervals from 1-5 minutes, or continuously over 12 hours.
Full Reference
Morrogh-Bernard, H. C., Husson, S. K., Knott, C. D., Wich, S. A., van Schaik, C. P., van Noordwijk, M. A., Lackman-Ancrenaz, I., Marshall, A. J., Kanamori, T., Kuze, N. and bin Sakong R. (2009). Orangutan activity budgets and diet. In: S. A. Wich, S. S. U. Atmoko, T. M. Setia and C. P. van Schaik (eds), Geographic variation in behavioral ecology and conservation. Oxford, Oxford University Press. Pages: 119-134. [Available at: https://dx.doi.org/10.1093/acprof:oso/9780199213276.003.0008]
Suggested Citation

Rebecca Haywood. (2020) "Ape 84 from Asia/Sumatra/Ketambe Research Station, Gunung Leuser National Park, Leuser Ecosystem, Sumatra". In Database of non-human primate dietary studies. Rebecca Haywood (Ed). Released: 2020-08-21. Open Context. <https://opencontext.org/subjects/79f259b9-bd49-4e07-a4c5-c7580eda9382> ARK (Archive): https://n2t.net/ark:/28722/k2086mb2j

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