Heart of Borneo project (2): Allopatric distribution and ecological separation of Muntiacus atherodes and Muntiacus muntjak (Family Cervidae: Genus MUNTIACUS Rafinesque, 1815) populations in Brunei Darussalam.

JOSEPH K. CHARLES¹* and ANG BEE BIAW²

¹, ² The Mesozoic Explorers Company, No.2 Simpang 398, Jalan Subok, Bandar Seri Begawan BD2717, Brunei Darussalam.

*Corresponding author joekcharles@gmail.com , Tel. +6738822322

Abstract: The Heart of Borneo initiative in Brunei Darussalam led to a Faunal Biodiversity Survey in the Sungei Ingei Conservation Forest and a variety of other localities in the country from 2009-2016. This paper highlights the differences between the two Muntiacus species based on camera trap images and establishes that their distribution is allopatric. Our data from camera traps deployed in different habitats have shown conclusively that Muntiacus atherodes ranged from secondary forests, lowland forests that include mixed dipterocarp forests, kerangas forests, riverine forests, mineral licks and low hills while Muntiacus muntjac was only recorded in the Ulu Temburong National Park and hills in other parts of Temburong and higher hills in Tutong without any instance of both species co-occurring in the same habitat.

Ang & Charles (2022) MNJ 74 Ecological Separation of 2 Muntjac species in Brunei Darussalam, Borneo