This species is currently known only from between approximately 650–1,400 m Asl in Gia Lai and Thua Thien-Hue Provinces, central Viet Nam (Lathrop et al. 1998, Bain et al. 2007), and Xe Kong Province, southern Laos (Stuart 1999, Stuart 2005). These are unlikely to represent the actual limits of the species' range as similar habitat and elevations to those in the species' known localities extend into adjacent and intervening parts of both countries. Further surveys in these areas may uncover its presence there, therefore its range has been projected beyond known sites to include these areas of suitable habitat. The species' estimated EOO is 42,725 km2, which represents 11 threat-defined locations.
Habitat and Ecology
This species is associated with hilly evergreen forest and has been observed both on the banks of rocky streams and on leaf litter away from water (Lathrop et al. 1998, Stuart 2005, Bain et al. 2007). Males of this species have been documented calling in September in Viet Nam, including one from a burrow under mud and leaf litter (Lathrop et al. 1998). Much of the species' reproductive biology remains unknown, however it presumably breeds in streams by larval development, as do other Leptobrachium for which the reproductive strategy is known. Habitat in a considerable portion of the species' range has been degraded by conversion to agricultural land (Meyfroidt and Lambin 2008, Sodhi et al. 2009 Meyfroidt et al. 2013), and some of the type series were collected from a forest in Gia Lai Province, Viet Nam, that had had all of its understory cut and mostly removed (Lathrop et al. 1998).
There are no estimates of this species' overall abundance, however it has been detected in relatively few surveys (e.g. Lathrop et al. 1998, Stuart 1999, Stuart 2005, Bain et al. 2007). Further surveys are warranted to determine its relative abundance. Habitat loss associated with expanding agriculture in parts of this species' range (Lathrop et al. 1998, Meyfroidt and Lambin 2008, Sodhi et al. 2009, Meyfroidt et al. 2013) is likely causing population declines.
Habitat loss and degradation due to rapidly expanding agriculture is an ongoing threat to biodiversity throughout Southeast Asia (Sodhi et al. 2009). In the Central Highlands of Viet Nam large areas of forest are converted to agricultural land to grow cash crop plantations (e.g. rubber, coffee and tea) (Meyfroidt and Lambin 2008, Meyfroidt et al. 2013). In one of the species' known localities in Gia Lai Province, Viet Nam, all of the forest understory had been cut and most of it removed by the mid-90's to facilitate agriculture (Lathrop et al. 1998). High rates of deforestation for logging, and agricultural encroachment on natural forest are also ongoing in much of Laos (Sodhi et al. 2009). This species is very likely threatened to some degree by habitat loss.
This species is known from Xe Sap National Biodiversity Conservation Area in Laos (Stuart 2005). Considerable portions of approximately eight additional protected areas are included within the species' predicted range; it very likely occurs in some of these also. In order to ensure the species' long-term survival, the lack of data must be addressed; research should be carried out to determine its true distribution, relative abundance, natural history, and threats.
Red List Status
Least Concern (LC)
Listed as Least Concern as this species is relatively widespread, with an estimated extent of occurrence (EOO) of 42,725 km2, which represents 11 threat-defined locations.
IUCN SSC Amphibian Specialist Group 2017. Leptobrachium banae. The IUCN Red List of Threatened Species 2017: e.T57550A3060683. http://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T57550A3060683.en .Downloaded on 19 November 2018