Kunz, Julia A. http://orcid.org/0000-0002-0381-2982
Duvot, Guilhem J.
van Noordwijk, Maria A.
Willems, Erik P.
Townsend, Manuela
Mardianah, Neneng
Utami Atmoko, Sri Suci
Vogel, Erin R.
Nugraha, Taufiq Purna
Heistermann, Michael
Agil, Muhammad
Weingrill, Tony
van Schaik, Carel P.
Funding for this research was provided by:
University of Zurich
A.H. Schultz-Stiftung zur Förderung Primatologischer Forschung
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (310030B_160363/1)
Article History
Received: 3 August 2020
Revised: 2 December 2020
Accepted: 9 December 2020
First Online: 30 December 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This is an observational study and fecal samples were collected non-invasively. Observers did not interact with the wild focal individuals in any way and kept a minimum distance of 10 m in order to minimize any effect on their natural behavior. The data collection protocol for this study adheres to legal requirements of Indonesia and was approved by the Indonesian State Ministry for Research and Technology (RISTEK) (permit number 66/SIP/FRP/E5/Dit.KI/III/2016), the Directorate General of Natural Resources and Ecosystem Conservation- Ministry of Environment and Forestry of Indonesia (KSDAE-KLHK), the Ministry of Internal Affairs, Indonesia, the Nature Conservation Agency of Central Kalimantan (BKSDA) and Balai Besar Taman Nasional Gunung Leuser (BBTNGL). Fecal sample collection was conducted according to Indonesian and international regulations and with the permission of the Indonesian Ministry of Environment and Forestry (KLHK) (permit numbers: 17256/IV/SA TS-LN/2012, SK.49/KSDAE/SET/KSA.2/1/2017).
: Not applicable