Residential status and seasonal movements of wild orang-utans in the Gunung Leuser Reserve (Sumatera, Indonesia)
References (31)
Orangutan reproduction in the wild
The Borneo orangutan: population structure and dynamics in relationship to ecology and reproductive strategy
The ecology and behaviour of wild orangutans (Pongo pygmaeus)
Anim. Behav.
(1974)Mating behaviour of male orangutans in the Kutai Reserve, East Kalimantan, Indonesia
Anim. Behav.
(1985)Sexual selection and adult male orangutan long calls
Anim. Behav.
(1985)- et al.
Observational study of behaviour: sampling methods
Behaviour
(1974)- et al.
- et al.
On territorial behavior and other factors influencing habitat distribution in birds
Acta biotheor
(1970)
Orangutan adaptation at Tanjung Puting Reserve, Central Borneo
Orangutan adaptation at Tanjung Puting Reserve: mating and ecology
The orangutan long call and snag crashing at Tanjung Puting Reserve
Primates
(1983)
Adult female sociality among wild orangutans at Tanjung Puting Reserve
Subadult male orangutan sociality and reproductive behavior at Tanjung Puting
Am. J. Primatol.
(1985)
Cited by (56)
The orang-utan mating system and the unflanged male: A product of increased food stress during the late Miocene and Pliocene?
2007, Journal of Human EvolutionCitation Excerpt :Like gorillas (Gorilla gorilla), the switch from the undeveloped (i.e., unflanged) to the developed (i.e., flanged) state in orang-utans is irreversible (Utami Atmoko and van Hooff, 2004). Orang-utans are unusual, however, in that males can arrest their development for a variable period between one and twenty-five years of age (Galdikas, 1985; te Boekhorst et al., 1990; van Schaik, 2004; Wich et al., 2004b), which probably depends on the presence or absence of flanged males in the area (Maggioncalda et al., 1999). After this period of arrest, male orang-utans then develop rapidly into flanged males, often within the space of a year (Brandes, 1939; Ulmer, 1958; M.E. Harrison, pers.
Beyond Dimorphism: Body Size Variation Among Adult Orangutans Is Not Dichotomous by Sex
2023, Integrative and Comparative BiologyMusic as aposematic signal: predator defense strategies in early human evolution
2023, Frontiers in Psychology
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