Demography of a Stable Gibbon Population in High-Elevation Forest on Java

Lappan, Susan; Oktaviani, Rahayu; Choi, Ahyun; Ham, Soojung; Jang, Haneul; Kim, Sanha; Yi, Yoonjung; Mardiastuti, Ani; Choe, Jae Chun

doi:10.1017/9781108785402.007

Cited by 2 publications

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“…Javan gibbons ( Hylobates moloch ) are strictly pair-bonding compared to other gibbon species with more flexible social structures [44,47–49]. In this study, we investigated the family dynamics of wild Javan gibbons at Gunung Halimun-Salak National Park, Indonesia.…”

Section: Introductionmentioning

confidence: 99%

How to be a good partner and father? The role of adult males in pair bond maintenance and parental care in Javan gibbons

Mardiastuti

Choe

2023

Proc. R. Soc. B.

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In pair-living species, female and male pairs may maintain stable social bonds by adjusting spatial and social associations. Nevertheless, each sex invests differently to maintain the pair bond, and the investment can depend on the presence of paternal care or ‘male services.’ While most species live in pairs, the sex responsible for pair bond maintenance in gibbons is still controversial. We investigated pair bond maintenance and parental care in three pairs of wild Javan gibbons in Gunung Halimun-Salak National Park, Indonesia, for over 21 months. We found that Javan gibbon fathers groomed their offspring more than adult females, especially as offspring got older. While both parents increased playing time with offspring when offspring became older and more independent, fathers played with offspring 20 times more than mothers on average. Grooming within Javan gibbon pairs was male-biased, suggesting that pair bond maintenance was heavily the job of males. However, offspring age as a proxy for paternal care did not affect the pair bond maintenance. Our study highlights that adult male Javan gibbons may have an important role in pair bond maintenance and the care of juveniles.

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Section: Introductionmentioning

confidence: 99%

How to be a good partner and father? The role of adult males in pair bond maintenance and parental care in Javan gibbons

Mardiastuti

Choe

2023

Proc. R. Soc. B.

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Hylobates moloch(Primates: Hylobatidae)

Caspar

2022

Mammalian Species

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Hylobates moloch (Audebert, 1797), the Javan or silvery gibbon, is a pair-living small ape which is exclusively found in the western and central regions of the Indonesian island of Java. It represents the southernmost occurring species of the genus Hylobates and inhabits the canopy of tropical rainforests. It is foremost characterized by its long silvery-gray fur in combination with a lack of duet songs in mated pairs. Hylobates moloch is threatened by habitat loss as well as the illegal wildlife trade and is listed as “Endangered” (EN) by the IUCN Red List of Threatened Species.

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Demography of a Stable Gibbon Population in High-Elevation Forest on Java

Cited by 2 publications

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How to be a good partner and father? The role of adult males in pair bond maintenance and parental care in Javan gibbons

How to be a good partner and father? The role of adult males in pair bond maintenance and parental care in Javan gibbons

Hylobates moloch(Primates: Hylobatidae)

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