Hue University College of Education Do Trong Dang
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HUE UNIVERSITY COLLEGE OF EDUCATION DO TRONG DANG RESEARCH ON THE SPECIES DIVERSITY, DISTRIBUTION AND CONSERVATION VALUE OF AMPHIBIANS AND REPTILES SPECIES IN SOUTH PART OF CU MONG PASS, PHU YEN PROVINCE Major: Zoology Code: 62 42 01 03 SUMMARY OF Ph.D IN BIOLOGY Instructors PhD. Nguyen Quang Truong Prof. PhD. Ngo Dac Chung HUE, 2017 The work was completed in: The work was completed in: College of Education, Hue University Science instructors: PhD. Nguyen Quang Truong Prof. PhD. Ngo Dac Chung Reviewer 1: Reviewer 2: Reviewer 3: The thesis was defended at the Council of thesis assessment of Hue University Council held at: 4 Le Loi street, Hue city, Thua Thien Hue province, at ……………………………………... on .…../…../2017 Theses can be further referred at: 1. National Library 2. Center for Information and Library of College of Education, Hue University WORKS RELATED TO THE THESIS HAS BEEN PUBLISHED 1. Dang Trong Do, Chung Dac Ngo, Truong Quang Nguyen (2015), Diversity of the narrow-mouth frogs (Amphibia: Anura: Microhylidae) from Phu Yen Province, In Proceedings of the sixth National Scientific Conference on Ecology and Biological Resources, pp. 515-519. 2. Dang Trong Do, Chung Dac Ngo, Truong Quang Nguyen (2016), New records of turtles from Phu Yen Province, Vietnam, In Proceedings of the 2ND National Scientific Conference on Biologycal Research and Teaching in Vietnam, pp. 129-136. 3. Dang Trong Do, Chung Dac Ngo, Truong Quang Nguyen (2016), New records of Colubridae (Squamata: Serpentes) and an updated list of snakes from Phu Yen Province, Vietnam, In Proceedings of third National Scientific Conference on Amphibians and Reptiles in Vietnam, pp. 25-31. 4. Dang Trong Do, Chung Dac Ngo, Truong Quang Nguyen (2017), New records and an updated checklist of Amphibians (Amphibia) from Phu Yen Province, Vietnam, Hue University Journal of Science, Vol.126, No.1B. (Accepted post). 5. Do T. D., Ngo C. D., Ziegler T. & Nguyen T. Q. (2017), First record of Lycodon cardamomensis Daltry & Wüster, 2002 (Squamata: Colubridae) from Vietnam, Russian Journal of Herpetology, Vol.24, No.2, pp. 167-170. 6. Dang Trong Do, Chung Dac Ngo, Nguyen Van Tan, Truong Quang Nguyen (2017), New records of skinks (reptilia: squamata: scincidae) from Phu Yen Province, In Proceedings of the seventh National Scientific Conference on Ecology and Biological Resources, pp. 637-642. INTRODUCTION 1. Rationale Located in Indo-Burma, Vietnam is one of the 34 countries known for the biodiversity and ranked as one of the 25 countries with the high biodiversity level in the world. Because of the variety of climates, terrain and habitat, the fauna of Vietnam is very diverse. The species composition of amphibians and reptiles in Vietnam increased rapidly from 340 species in 1996, 458 species in 2005, and 545 species in 2009 and in 2016 the number of it was 650. Besides the diversity of species composition, the herpetofauna of Vietnam is also endemic with 48 species of reptiles and 33 species of amphibians. The previous researches on amphibians and reptiles in Vietnam just focused on the mountainous area and the Annamite Range. These studies were rarely carried out in the South Central region. Phu Yen has an area of 116.819 ha of natural forest making up 31,1% and the quality of the forest is good. However the study on amphibians and reptiles in Phu Yen Province is very limited. There were a few related works published such as Campden-Main (1970) recorded four species snakes; Nguyen Van Sang et al. (2005) recorded 10 species of amphibians and reptiles; Ngo Dac Chung and Tran Duy Ngoc (2007) recorded 71 species; David et al. (2008) described a new species of snake – Oligodon ocellatus; Nguyen et al. (2009) recorded 17 species of amphibians and reptiles; Zieger et al. (2013) discovered a new Cyrtodactylus kingsadai in Dai Lanh. To update the list, evaluate the diversity and the conservation value of amphibians and reptiles species in Phu Yen. We have chosen the theme “Research on the species diversity, distribution and conservation value of amphibians and reptiles species in south part of Cu Mong Pass, Phu Yen Province”. 2. Research objectives Determine the species diversity, distribution and conservation status of the amphibians and reptiles in the south part of Cu Mong Pass, Phu Yen Province. 3. Research contents - Determine the diversity of species composition. 1 - Find out the distribution characteristics of amphibians and reptiles in Phu Yen province based on the research locations, the habitat and the altitude. - Evaluate the zoogeography relationship of amphibians and reptiles species composition between the southern Cu Mong Pass and the provinces of the South Central. - Assess the conservation value and identify the threats to amphibians and reptiles species in the study area. - Recommend the options of rational uses and conservation of amphibians and reptiles in Phu Yen Province. 4. The scientific and practical significances of the subject - Provide the up to date scientific data on the species composition, distribution and current status of amphibians and reptiles species in southern Cu Mong Pass. - Be an important scientific base which helps for the conservation planning and the sustainable uses of the amphibians and reptiles resources in particular and animals in Phu Yen Province in general. 5. The new contributions of the dissertation - Make an updated checklist of amphibians and reptiles from Phu Yen Province including 135 species belonging to 85 genera, 25 families, 5 orders. - 63 species of amphibians and reptiles are reported for the first time from this province; 24 species in the South Central region. Notably, we have recorded an addition of a snake species to the herpetofauna of Vietnam. - Additional data of morphological characters of 63 species new records from this province and 2 species which have not been identified scientific names were also provided. - Evaluate the distribution characteristics based on the study area, the altitude and the habitat. - Assess the conservation value and identify the threats to the amphibians and reptiles species in the south part of Cu Mong Pass as a scientific document for biodiversity conservation planning. 2 CHAPTER ONE LITERATURE REVIEW 1.1. Overview of research on amphibians and reptiles 1.1.1. Vietnam According to Nguyen et al. (2009), researches on amphibians and reptiles in Vietnam were conducted long time ago but flourished in the late 19th century, especially in the early 21st century and developed in several different ways: - Researches on the diversity of the species composition of amphibians and reptiles Most of the researches on amphibians and reptiles in this direction were concentrated in the mountainous areas of the Annamite Range and the Central Highland. The subjects of these studies focused on the less studied groups, such as genera belongs to the family colubrids (Amphiesma, Oligodon), family geckos (Cnemaspis, Cyrtodactylus, Gekko), family skinks (Scincella, Sphenomorphus, Tropidophorus) and other amphibians species (Ichthyophis, Leptolalax, Leptobrachium, Gracixalus, Philautus, Rhacophorus, Theloderma). - New species discoveries of amphibians and reptiles from Vietnam and taxonomic changes After Nguyen et al. (2009), from 2010-2016, 97 species and numerous taxonomical of amphibians and reptiles amendments were discovered by applying molecular biology techniques for classification researches. - Studies on biological characteristic, ecology and application There were a lot of researches on the morphological and ecological characteristics of amphibians and reptiles species: Bungarus fasciatus, Leiolepis belliana, Leiolepis reevesii, Ptyas korros, Ptyas muscosa, Hemidactylus frenatus, Gehyra mutilata. In recent years the researches on acoustic studies, tadpoles of amphibians species and the rare species of amphibians and reptiles have been expanded. Many species in acoustic fields were recorded such as Hylarrana guentheri, Feihyla vittata, Polypedates megacephalus, Microhyla marmorata; the tadpole morphology of species are described including Microhyla marmorata, Rhacophorus 3 maximus, Megophryidae; and researches on the rare species were of interest such as Mauremys annamensis, Shinisaurus crocodilurus. 1.1.2 South Central of Vietnam There is a little of work on amphibians and reptiles species composition in South Central region except the work of Geissler et al. (2011) in Binh Thuan and Duong Duc Loi’s dissertation (2016) which was conducted in northern Cu Mong Pass, Binh Dinh Province. However after Nguyen et al. (2009) there were many new species of science discovered in this area. That means the diverse of amphibians and reptiles in this region are very potential. 1.1.3 Southern Cu Mong Pass, Phu Yen Province Campden-Main (1970) recorded 4 species of snakes; Nguyen Van Sang et al. (2005) discovered 10 amphibians and reptiles species; Ngo Dac Chung and Tran Duy Ngoc (2007) recorded 71 species; David et al.(2008) described a new type of snake named Oligodon ocellatus; Nguyen et al. (2009) recorded 17 species, Zieger et al. (2013) discovered a new Cyrtodactylus kingsadai in Dai Lanh. The results of the work show that 73 species of amphibians and reptiles are recorded in Phu Yen, including 21 species of amphibians and 52 species of reptiles. 1.2. Overview of natural and social conditions of Phu Yen 1.2.1. Natural conditions 1.2.1.1. Geographical location Phu Yen is a province in the South Central Coast which has the geographical coordinates from 12o39’10" to 13o45’20" north latitude and from 108o39’45" to 109o29’20" east longitude. The East of Phu Yen borders the East Sea to the east, Gia Lai and Daklak Province to the east, Khanh Hoa Province to the South and Binh Dinh Province to the north. 1.2.1.2.Administrative units Phu Yen is subdivided into 9 district-level sub-divisions (Dong Hoa, Tay Hoa, Song Hinh, Phu Hoa, Dong Xuan, Tuy An), 88 communes, 16 wards, 8 townlets, one district-level town (Song Cau), and one provincial city (Tuy Hoa- 2nd class city) 1.2.1.3.