Chatterjee, Helen J. 2006. Phylogeny and Biogeography of Gibbons: A Dispersal-Vicariance Analysis.

International Journal of Primatology: 27 (3) 699-791.

 

Cowlishaw, Guy. 1992. Song Function in Gibbons. Behavior: 121 (1-2) 131-153.

Geissmann, Thomas. 1986. Mate Change Enhances Duetting Activity in the Siamang Gibbon (Hylobates

syndactulus). Behavior: 96 (1-2) 17-27.

Geissmann, Thomas. 1999. Duet Songs of the Siamang, Hylobates Syndactylus II: Testing the Pair-Bonding

Hypothesis during a Partner Exchange. Behavior: 126 (8) 1005-1039.

Marshall, Joe T. and Elise R. Marshall. 1976. Gibbons and Their Territorial Songs. Science, New Series:

193 (4249) 235-237.

Mitani, John C. 1985. Gibbon Song Duets and Intergroup Spacing. Behavior: 921 (1-2) 59-96.

Mitani, John C. 1987. Territoriality and Monogamy among Agile Gibbons (Hylobates agilis). Behavioral

Ecology and Sociobiology: 20 (4) 265-269.

Mitani, John C and Peter Marler. 1989. A Phonological Analysis of Male Gibbon Singing Behavior.

Behavior: 109 (1-2) 20-45.

Raemaekers, Jeremy J., Patricia M. Raemaekers, and Elliott H. Haimoff. 1984. Loud Calls of the Gibbon

(Hylobates lar): Repertoire, Organization and Context. Behavior: 91 (1-3) 146-189.

 

Image Credits:

http://www.zooschool.ecsd.net/white%20handed%20gibbon.jpg

http://deco-00.slide.com/r/1/138/dl/CIpZyDXe0j-Ydpo7yMGw0tT3oQZoXZCL/watermark

http://www.mun.ca/biology/scarr/Phylogeny_of_Anthropoidea6.gif