Most of the extraordinary biodiversity richness of South-East Asian countries is concentrated in the national parks and other Protected Areas, with species-rich turtle communities surviving mostly in these reserves where their natural habitats are better preserved. However, very few studies have documented the turtle species richness of the various Protected Areas in Vietnam, which is not only one of the hotspots of chelonian diversity in the world but also one of the countries where their exploitation is the highest. Here, the diversity of turtles is studied in the Bach Ma National Park in central Vietnam, mainly characterised by forested hills and mountains, with ponds and streams of various shapes and structures. The study was carried out by conducting (i) semi-structured interviews of hunters recruited through a snow-ball procedure in local villages, (ii) inspection of turtle individuals in their hands, (iii) field surveys along random transects inspecting the various microhabitats used by these reptiles. We observed a total of 15 species, out of which 14 (93.3%) are threatened, based on IUCN Red List. A natural hybrid of Cuora bourreti × C. mouhotii obsti (Cuora «serrata») was observed. Three species (Cuora bourreti, Manouria impressa, Platysternon megacephalum) were the most frequently encountered species according to our interviewees. We conclude that, in order to enhance the conservation status of the turtle communities at the local level, it would be important (i) to increase the number of rangers patrolling the study area in the rainy season (from April to September) and (ii) to list the hunter's names in the villages surrounding the Bach Ma National Park and to convince them to sign an agreement with the local authorities to avoid hunting turtles within the Protected Area.

Breeding turtles in farms for offering them in the food market is a profitable market in Vietnam. Here we study, through structured questionnaires with 73 owners of turtle farms, the social and economic contexts of this business activity. We also collected ecological data for the most intensely bred species, the Wattle-necked softshell turtle, Palea steindachneri. Palea farms were typically small family-owned companies, with just 1 to 4 employees working just 1 - 2 h per day but almost every day in the week, and with 1 to 4 ponds available in the facilities. Sex ratio of farmed turtles was heavily skewed to females in both P. steindachneri and Amyda cartilaginea (the secondly most frequently bred species), and their clutch size was very similar. Inside farms, mating of P. steindachneri occurred in February, egg deposition in March - July with a peak in May, and egg hatching in May - October, with a peak in July. In Vietnam, the typical owner of P. steindachneri farms is a self-made man who had enjoyed very little management and support from government for his/her business.