Anna M. Marzec, - and Julia A. Kunz, - and Sonja Falkner, - and Sri Suci Utami Atmoko, - and Shauhin E. Alavi, - and Alysse M. Moldawer, - and Erin R. Vogel, - and Caroline Schuppli, - and Carel P. van Schaik, - and Maria A. van Noordwijk, - (2016) The dark side of the red ape: male-mediated lethal female competition in Bornean orangutans. Behavioral Ecology and Sociobiology.
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Abstract
Female Bornean orangutans (Pongo pygmaeus wurmbii) are mainly solitary and philopatric, leading to adult female relatives sharing adjacent and overlapping home ranges. Females tend to be intolerant of unrelated females, with whom they also may have overlapping home ranges. However, fights that lead to injuries are extremely rare and lethalaggressionhadneverbeenobserved.Here,wereportthe first case of lethal female-female aggression during over 26, 000 h of focal data collected on adult females at Tuanan, Central Kalimantan: A young female, who had recently lost her infant, attacked an old resident female. The interaction’s uniquefeaturewasthattheattackingfemalewassupportedby an unflanged male, who had been in consort with her during the week preceding the attack and was responsible for the lethal injuries to the victim. The victim received protection from a flanged male who was probably attracted to the noise generated by the fight. We conclude that even in a species in whichcoercionisfrequentlyobservedinmale-femaleinteractions, femaleleverageovermales can coaxmales intoproviding services, such as coalitionary support. Keywords Orangutan .Lethalaggression .Coalitionary attack .Female-femalecompetition .Malesupport
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Artikel > Biologi |
| Depositing User: | BPSI Unas |
| Date Deposited: | 20 Aug 2017 05:31 |
| Last Modified: | 20 Aug 2017 05:31 |
| URI: | http://repository.unas.ac.id/id/eprint/63 |
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