[1] Australian Museum Res Inst, 1 William St, Sydney, NSW 2010, Australia
[2] TRAFF Southeast Asia, Unit 3 2, Taman SEA, 1st Floor,Jalan SS23-11, Petaling Jaya 47400, Selangor, Malaysia
[3] North Carolina Museum Nat Sci, 11 W Jones St, Raleigh, NC 27601 USA
[4] Vietnam Acad Sci & Technol, Inst Ecol & Biol Resources, 18 Hoang Quoc Viet Rd, Hanoi, Vietnam
[5] Ho Chi Minh City Univ Sci, Viet Nam Natl Univ, Fac Biol, 227 Nguyen Van Cu,Dist 5, Ho Chi Minh City, Vietnam
[6] Univ Calif Berkeley, Dept Environm Sci Policy & Management, 3101 Valley Life Sci Bldg, Berkeley, CA 94720 USA
[7] Univ Calif Berkeley, Museum Vertebrate Zool, 3101 Valley Life Sci Bldg, Berkeley, CA 94720 USA
[8] Natl Univ Laos, Fac Nat Sci, Dept Biol, POB 2273,Dong Dok Campus, Vientiane Capital, Laos