tailieunhanh - Assessing the current status of the cave scorpion Euscorpiops cavernicola Lourenco & Pham, 2013 in northern Vietnam

The aim of this contribution is to bring assessment on the status of this species based on IUCN criteria and on the available data obtained on the species in order to make recommendations to the local and national authorities for consideration. | TAPthe CHI SINH HOC 38(1): 14-18 Assessing current status of2016, the cave scorpion DOI: ASSESSING THE CURRENT STATUS OF THE CAVE SCORPION Euscorpiops cavernicola Lourenço & Pham, 2013 (Scorpiones: Euscorpiidae) IN NORTHERN VIETNAM Pham Dinh Sac Institute of Ecology and Biological Resources, VAST, phamdinhsac@ ABSTRACT: Status survey of the cave scorpion, Euscorpiops cavernicola, was carried in a cave system of Bac Kan province. A total of 56 (9 adults) and 45 (7 adults) individuals were recorded during the years 2014 and 2015, respectively. This species is only known from Hua Ma cave, which is strongly threatened by tourism development. Based on the current area of occupancy (AOO) and extent of occurrence (EOO) of , associated with its recent decline in both AOO and number of individuals, this species can be classified as Critically Endangeredby IUCN. Keywords: Cave scorpion, conservation status, IUCN criteria, red list, Northern Vietnam. INTRODUCTION The most critical threat to scorpion species is destruction of their natural habitat. Habitat loss and habitat destruction strongly influence on scorpion distribution patterns since many species have quite specific habitat requirements and well defined natural ranges. Many natural areas, previously suitable for scorpions, have now been destroyed. Many specific habitats within these natural regions are rapidly destroyed due to logging, agriculture, developmental construction, and development of tourism. Natural habitats of all kinds are destroyed at an alarming rate. Many scorpion species are literally losing their ‘homes’ and they could be rapidly vanished. Caves contain unique habitats populated by specialized, endemic scorpions. Howarth (1983) [2] shows that invertebrates including cave scorpions are very typical in morphology and show high endemic levels. The separation of cave ecosystems from external environments, with differences in light regime and .

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