Application of a parallel laser apparatus to measure forearms and flanges of wild Bornean orangutans (Pongo pygmaeus wurmbii)
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DOI: 10.1002/ajp.23445
Abstract: We constructed a parallel laser photogrammetry apparatus constructed from commercially available parts, and measured forearm lengths and flange widths of 16 wild Bornean orangutans. Our objectives were to validate our method and apparatus, discuss issues… read more here.
Keywords: wild bornean; application parallel; parallel laser; bornean orangutans ... See more keywords
The development and maintenance of sex differences in dietary breadth and complexity in Bornean orangutans
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DOI: 10.1007/s00265-021-03014-3
Abstract: Abstract Orangutans show a pronounced sexual dimorphism, with flanged males (i.e., males with fully grown secondary sexual characteristics) reaching twice the size of adult females. Furthermore, adult orangutans show sex-specific dispersal and activity patterns. This… read more here.
Keywords: sex differences; bornean orangutans; sex; foraging behavior ... See more keywords
Bornean orangutans: primary forest in Danum Valley and rehabilitation program on Orangutan Island
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DOI: 10.1007/s10329-019-00771-8
Abstract: This is a brief report on my recent trip to Borneo and Peninsular Malaysia in 2019 to see orangutans (Pongo pygmaeus) and other nonhuman primates (Fig. 1). I first went to see wild orangutans in… read more here.
Keywords: forest danum; primary forest; bornean orangutans; nonhuman primates ... See more keywords