Hi all,
some information on the current status of Paramesotriton deloustali I want to share. This is based on an article in the German elaphe magazine by Harald Martens (in German:“Am Typus-Fundort von Paramesotriton deloustali“ elaphe 11 (2003) Heft 1 pp.55-59) as well as infos given by the author himself.
On a field trip to the terra typica of P. deloustali at Tam Dao (Vietnam) in August 2001, the author (who was accompanied by the Vietnamese herpetologist TRUONG) was able to confirm the persisting occurrence of this species in the vicinity of the village.
One locality where the animals were found (two females with total lengths of 15 respectively 17 cm) was a small pool near a hydropower plant, occupying an area of approx. 10 square meters and a maximum depth of 1 m. The pool was shaded by banana foliage, the bottom was covered with leaves and rocks (Conductivity 36 mS/cm, pH 6, water temp. 20 deg. Celsius). Other animals encountered in this pool were Racophorus-tadpoles as well as small snakes of the genus Amphiesma.
According to a local guide, eggs and larvae of this species can be encountered during the dry season (February and March) in similar water bodies. According to Harald Martens a lot of local people believe that this newt (called Ca Coc, which means „toad-fish“) is a live bearer since only morphed juveniles are encountered regularly.
According to TRUONG P. deloustali has a wider area of occurrence than just Tam Dao. It ranges approx. 60 km from Tam Dao in the Southeast to Tay Thien and up to Hop Hoa in the Northwest. The animals only occur south of the mountain range at elevations of 200 to 900 m above sea level. However, also 350 km north of Tam Dao animals, presumably belonging to Paramesotriton, were caught in the National Reserve of Bac Be.
One major threat for the animals is the ongoing trade with wildcaught animals despite of the official protected status of this species. Animals are often offered to/ bought by weekend vacationers (at approx. 3 Euros respectively US-Dollars) especially at the tourist centers of Tam Dao and Tay Thien. Because of the unsuccessful method of maintaining the animals by feeding them rice, there is a constant demand for these „good luck charms“.