Table of Contents
Advances in Zoology
Volume 2014 (2014), Article ID 101763, 8 pages
http://dx.doi.org/10.1155/2014/101763
Research Article

Orangutan Night-Time Long Call Behavior: Sleep Quality Costs Associated with Vocalizations in Captive Pongo

1The Nunn Lab, Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA
2Indiana University, E. Kirkwood Avenue 701 Student Building 130, Bloomington, IN 47405-7100, USA
3Indianapolis Zoo, West Washington Street 1200, Indianapolis, IN 46222-0309, USA
4Krasnow Institute at George Mason University, Fairfax, VA 22030, USA

Received 13 June 2014; Revised 28 July 2014; Accepted 11 August 2014; Published 7 September 2014

Academic Editor: Luciano J. Avila

Copyright © 2014 David R. Samson et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

Supplemental video description: Azy (a fully flanged male orangutan) performing a night-time long call. Long calls were conscious and premeditated and were linked to lower sleep quality for the calling individual.

  1. Supplementary Materials