This species has been recorded at between approximately 59–1,400 m Asl, but at only two localities in eastern Myanmar - Thao in the Karen Hills, and Tanintharyi Nature Reserve in Tanintharyi State (Boulenger 1893, Dever et al. 2015). These may not represent the actual limits of the species' range as habitat is contiguous across the >500 km distance between its known localities (Olsen et al. 2001, Dever et al. 2015), and similar habitat and elevations also extend into adjacent parts of western Thailand. Further surveys in these areas may uncover its presence, and they have been included in the range map associated with this assessment. The species' estimated EOO is 142,006 km2, which represents four threat-defined locations.
Habitat and Ecology
This species is associated with both lowland and montane wet evergreen forest as well as evergreen mixed with deciduous and bamboo forest (Boulenger 1893, Dever et al. 2015). Nothing is known about this species' reproductive behaviour, however it presumably breeds by larval development and deposits eggs in water-filled tree holes, rock depressions or other small, still water bodies, as do other Theloderma for which the reproductive strategies are known. Habitat throughout much of this species' range is undergoing a continuing decline in quality and extent due to the effects of expanding agriculture (Sodhi et al. 2009).
The size of this species' population is not well known, however it has been detected in only two surveys (e.g. Boulenger 1893, Dever et al. 2015). It is possible that such low detectability is due at least in part to cryptic behaviour rather than being a representation of true rarity. It is likely that ongoing forest loss associated with expanding agriculture throughout Southeast Asia (Sodhi et al. 2009) is causing some population declines. Further surveys are needed to determine its population trends in the wild.
Habitat loss and degradation due to rapidly expanding agriculture is an ongoing threat to biodiversity throughout Southeast Asia (Sodhi et al. 2009). Agricultural encroachment on natural forest is ongoing in much of Myanmar (Sodhi et al. 2009). This species is likely threatened to some degree by habitat loss.
This species is known from Tanintharyi Nature Reserve (Dever et al. 2015). A number of other protected areas are included in its predicted range in both Myanmar and Thailand; it 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, life 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 142,006 km2.
Taylor (1962) appeared to doubt the placement of this species in Theloderma (although his argument is confused by reference to the genus Phrynoderma).
IUCN SSC Amphibian Specialist Group 2017. Theloderma phrynoderma. The IUCN Red List of Threatened Species 2017: e.T59038A88213030. http://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T59038A88213030.en .Downloaded on 21 January 2019