This species is known from Ha Giang and Cao Bang Provinces, Northeastern Viet Nam and Malipo County, Southeastern Yunnan Province, China and occurs between 753-1,700 m asl (Bain et al. 2009). These may not represent actual limits on its distribution and its range map includes suitable habitat contiguous with the species' known localities; further surveys are warranted to determine its presence elsewhere. The species' estimated extent of occurrence (EOO) is 14,296 km². There are five separate threat-defined locations within its range.
Habitat and Ecology
This species is observed around rocky streams and waterfalls within montane forest. Its microhabitat includes steep mossy rock walls, mid-stream boulders, and branches up to 3 m high. It is reproductively active in April and May, though eggs and larvae have not been observed (Bain et al. 2009).
Currently there is no population status information available for this species, except that it is known from 27 type specimens (Bain et al. 2009). The species may be in decline due to the continued effects of habitat fragmentation (R. Bain pers. comm. April 2014).
There is no detailed information on current major threats to this species, but historic habitat fragmentation by agriculture may further threaten populations (R. Bain pers. comm. April 2014).
This species is known from Tay Con Linh II Nature Reserve, and part of its range possibly extends into Ba Be National Park, Tam Tao Nature Reserve and Na Hang Proposed Special Use Forest. The first step towards ensuring its survival is addressing the lack of data; further research should be carried out to determine the species' true distribution.
Red List Status
This species is listed as Vulnerable as its extent of occurrence (EOO) is 14,296 km², it is known from only five threat-defined locations, and it is very likely that there is ongoing decline in the extent and quality of its habitat due to regional trends in habitat loss.
This species was previously described as Odorrana chapaensis by Ngo et al. 2006 and Che et al. 2007, Amolops chapaensis by Bain and Nguyen, 2004 and Rana sp. ‘‘Cao Bang’’ (ROM 26476) by Chen et al. 2005.
IUCN SSC Amphibian Specialist Group 2015. Odorrana geminata. The IUCN Red List of Threatened Species 2015: e.T190997A1965932. http://dx.doi.org/10.2305/IUCN.UK.2015-2.RLTS.T190997A1965932.en .Downloaded on 21 January 2019