Author/Authors :
Linkie، نويسنده , , Matthew and Guillera-Arroita، نويسنده , , Gurutzeta and Smith، نويسنده , , Joseph and Ario، نويسنده , , Anton and Bertagnolio، نويسنده , , Gregoire and Cheong، نويسنده , , Francis and Clements، نويسنده , , Gopalasamy Reuben and Dinata، نويسنده , , Yoan and Duangchantrasiri، نويسنده , , Somphot and Fredriksson، نويسنده , , Gabriella and Gumal، نويسنده , , Melvin T. and Horng، نويسنده , , Liang Song and Kawanishi، نويسنده , , Kae and Khakim، نويسنده , , Faesal Rakhman and Kinnaird، نويسنده , , Margaret F. and Kiswayadi، نويسنده , , Dedy and Lubis، نويسنده , , Abu H. and Lynam، نويسنده , , Antony J. and Maryati and Maung، نويسنده , , Myint and Ngoprasert، نويسنده , , Dusit and Novarino، نويسنده , , Wilson and O’Brien، نويسنده , , Timothy G. and Parakkasi، نويسنده , , Karmila and Peters، نويسنده , , Helga and Priatna، نويسنده , , Dolly and Rayan، نويسنده , , D.Mark and Seuaturien، نويسنده , , Naret and Shwe، نويسنده , , Nay Myo and Steinmetz، نويسنده , , Robert and Sugesti، نويسنده , , Arif M. and Sunarto and Sunquist، نويسنده , , Melvin E. and Umponjan، نويسنده , , Mayuree and Wibisono، نويسنده , , Hariyo T. and Wong، نويسنده , , Christopher C.T. and Zulfahmi، نويسنده ,
Abstract :
The loss and fragmentation of substantial areas of forest habitat, in combination with rampant hunting, has pushed many of Southeast Asia’s megafauna species to the verge of extinction. However, the extent of these declines is rarely quantified, thereby weakening lessons learned and species-based management. This need not be the case as a proliferation of camera trap surveys for large-bodied mammals across Southeast Asia, which use a standardized sampling technique, presents a rich yet under-utilized wildlife data set. Furthermore, advances in statistical techniques for assessing species distribution provide new opportunities for conducting comparative regional analyses. Here, we focus on one of Southeast Asia’s least known species of megafauna, the Endangered Asian tapir (Tapirus indicus), to investigate the performance of a camera trap-based spatial modeling approach in conducting a range-wide species assessment. Detection data were collectively collated from 52,904 trap days and 1,128 camera traps located across 19 study areas drawn from the Asian tapir’s entire range. Considerable variation in tapir occurrence was found between study areas in: Malaysia (0.52–0.77); Sumatra, Indonesia (0.12–0.90); Thailand (0.00–0.65); and, Myanmar (0.00–0.26), with generally good levels of estimate precision. Although tapirs were widespread (recorded in 17 of the 19 study areas), their occurrence was significantly and negatively correlated with human disturbance. Thus, this study extends the previously known applicability of camera traps to include a threatened and cryptic species by identifying where and how tapirs persist (including new records of occurrence), where future surveys should be conducted and providing a benchmark for measuring future conservation management efforts.
