Luan Thanh NguyenAsian Turtle Program - Indo-Myanamar Conservation
Luan Thanh Nguyen
Master of Science
About
85
Publications
43,997
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Introduction
I am a Central Vietnam Project Manager at the Asian Turtle Program (ATP) of Indo-Myanmar Conservation (IMC) in Vietnam. I'm working on tortoises, freshwater turtles, other reptiles, and amphibian research and conservation in Vietnam.
Skills and Expertise
Additional affiliations
September 2012 - present
Position
- Research Officer
Description
- Conduct field survey, study amphibian and reptile in Vietnam.
Education
January 2016 - May 2018
September 2008 - May 2012
Hue University of Sciences
Field of study
- Environment – Resources
Publications
Publications (85)
The megophryid genus Oreolalax is comprised of 19 species, most of which are endemic to China. A single species, Oreolalax sterlingae, is the only member of the genus known from Vietnam. During fieldwork on Mount Po Ma Lung in the Hoang Lien Range of northwest Vietnam, we encountered individuals of both Oreolalax sterlingae and another, morphologic...
We describe a new species of the Natricinae genus Rhabdophis Fitzinger, 1843 from the Hoang Lien range, northwest Vietnam. The new species is distinct from all congeneric species on the grounds of morphometric and molecular data. The new species is most similar to Rhabdophis leonardi in terms of morphology but can be distinguished from it based on...
We followed a standard skeletochronology protocol to assess the age of 17 Oreolalax sterlingae, an Endangered frog from Viet Nam, through the count of lines of arrested growth (LAGs).
We describe a new species of Dendrelaphis from the coastal area in southern Vietnam based on morphological data and nucleotide sequences from one partial mitochondrial gene (Cytb). Dendrelaphis binhi sp. nov. is diagnosed by the following morphological characters: body scale rows 13 at neck and midbody, 9–11 before vent; vertebral scale row feebly...
Botsford's leaf litter frog (Leptobrachella botsfordi) is listed as Critically Endangered. The species is threatened by ongoing habitat degradation and pollution, most of which is the result of infrastructural developments associated with tourism. We surveyed suitable habitat within the Hoang Lien Range, to better understand the distribution and na...
Call descriptions may facilitate studies on behavioural ecology and support taxonomists in their efforts to delimit species. The Indochinese Brown Bullfrog (Kaloula indochinensis) was described in 2013 and occurs in evergreen forest in Indochina. Whilst the tadpole of the species was recently described, little else is known about the biology and ec...
Chelonian diversity of Ninh Thuan province, South Central Coastal Vietnam, is still poorly understood. In this study, we conducted a semi-structured interview survey (2019) in 5 districts of Ninh Thuan province and a 7-day long field survey (2021) in Phuoc Binh National Park, Bac Ai district, Ninh Thuan province, as preliminary surveys to help cont...
We provide the first detailed records of Limnonectes kohchangae (Smith, 1922) and Sylvirana mortenseni (Boulenger, 1903) for Phu Quoc island, Phu Quoc National Park, Kien Giang province, Southern Vietnam. These records are supported by morphology and molecular data. Sylvirana mortenseni was associated with large streams between 23-102 m asl. This s...
Listed as Least Concern as this species is relatively widespread, with an estimated extent of occurrence of 176,479 km2, and because there are no data to suggest that its population is in such serious decline that criterion A should be triggered, or that the population is small enough to trigger criteria C or D.
Listed as Endangered as this species faces a continuing decline in the extent and quality of its habitat, it has an estimated extent of occurrence (EOO) of 2,985 km2, and it occurs in three threat-defined locations.
Green-back Treefrog Zhangixalus dorsoviridis has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Zhangixalus dorsoviridis is listed as Vulnerable under criteria B1ab(iii).
Hoang Lien Horned Frog Megophrys hoanglienensis has most recently been assessed for The IUCN Red List of Threatened Species in 2019. Megophrys hoanglienensis is listed as Endangered under criteria B1ab(iii).
Sách hướng dẫn định loại các loài rùa cạn và rùa nước ngọt Việt Nam được phát triển bởi
Trung tâm Giáo dục Thiên nhiên (ENV), Trung tâm Bảo tồn Rùa (TCC) thuộc Vườn Quốc
gia Cúc Phương và Chương trình Bảo tồn Rùa châu Á (ATP) thuộc Tổ chức Indo-Myanmar
Conservation (IMC).
Nguyen's Fanged Frog Limnonectes nguyenorum has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Limnonectes nguyenorum is listed as Near Threatened under criteria B1ab(iii,v).
Sterling's Toothed Toad Oreolalax sterlingae has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Oreolalax sterlingae is listed as Endangered under criteria B1ab(iii).
Mount Fansipan Horned Frog Megophrys fansipanensis has most recently been assessed for The IUCN Red List of Threatened Species in 2019. Megophrys fansipanensis is listed as Endangered under criteria B1ab(iii).
Sapa Bushfrog Gracixalus sapaensis has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Gracixalus sapaensis is listed as Endangered under criteria B1ab(iii).
Rowley’s Litter Toad Leptobrachella rowleyae has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Leptobrachella rowleyae is listed as Critically Endangered under criteria B1ab(iii).
Amolops splendissimus Orlov and Ho, 2007 and A. caelumnoctis Rao and Wilkinson, 2007 were described almost simultaneously from either side of the China-Vietnam border. The two species share a strong morphological resemblance, and their taxonomic distinctiveness has been questioned, yet no one has confirmed the taxonomic relationship and status betw...
Indochinese Brown Bullfrog Kaloula indochinensis has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Kaloula indochinensis is listed as Least Concern.
Koh Chang Island Frog Sylvirana mortenseni has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Sylvirana mortenseni is listed as Least Concern.
Bufo cryptotympanicus has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Bufo cryptotympanicus is listed as Least Concern.
No-thumb Pigmy Frog Nanohyla nanapollexa has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Nanohyla nanapollexa is listed as Data Deficient.
Nam Dong Litter Frog Leptobrachella namdongensis has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Leptobrachella namdongensis is listed as Endangered under criteria B1ab(iii).
Ananjeva Asian Treefrog Gracixalus ananjevae has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Gracixalus ananjevae is listed as Least Concern.
Mada Paddy Frog Micryletta erythropoda has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Micryletta erythropoda is listed as Least Concern.
Big-eared Odorous Frog Odorrana gigatympana has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Odorrana gigatympana is listed as Least Concern.
Buon Luoi Shrub Frog Philautus abditus has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Philautus abditus is listed as Least Concern.
Black-spotted Paddy Frog Micryletta nigromaculata has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Micryletta nigromaculata is listed as Endangered under criteria B1ab(iii).
Orange-bellied Narrow-mouth Frog Microhyla aurantiventris has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Microhyla aurantiventris is listed as Data Deficient.
Dalat Forest Frog Papurana milleti has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Papurana milleti is listed as Least Concern.
Chapa Spadefoot Toad Leptobrachium chapaense has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Leptobrachium chapaense is listed as Least Concern.
Yellow-spotted Spadefood Toad Leptobrachium xanthospilum has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Leptobrachium xanthospilum is listed as Endangered under criteria B1ab(iii).
The Hoang Lien Range in northwest Vietnam is known to harbour five species of Leptobrachella, a specious genus of terrestrial frogs. We collected specimens of Leptobrachella from Mount Pu Ta Leng on the second highest peak in the Hoang Lien Range and use morphological and molecular data to show that this population represents a previously undescrib...
We describe the oviposition sites of the Hoang Lien horned frog (Megophrys hoanglienensis).
A new vine snake, genus Ahaetulla, from Soc Trang Province, southern Vietnam is described based on morphological data and nucleotide sequences from COI and Cytb. Ahaetulla rufusoculara sp. nov. is diagnosed by the following morphological characters: bright red eyes; snout without dermal appendage; internasal separated from supralabial by loreal; bo...
A new species of the genus Gekko Laurenti, 1768 is described from Phu Yen Province, southern Vietnam based on morphological and molecular evidence. Gekko phuyenensis sp. nov. differs from other congeners by its moderate size, with a snout-vent length of 90.2-92.8 mm; nares in contact with rostral; internasal 1; interorbitals 35 or 36; ventrals 30-3...
The genus Megophrys is known to harbour morphological cryptic species diversity. During field work on Vietnam’s third highest peak, Mount Ky Quan San, north-west Vietnam, we collected specimens of a new species of Megophrys at two locations more than 2000 m
above sea level (asl). Phylogenetic analyses using mitochondrial markers place the new speci...
This study investigates the presence of Batrachochytrium dendrobatidis (Bd) in the Hoang Lien Range and patterns of Bd infection in space, time, and host species over a five-year sampling period. This study also investigates the presence of Batrachochytrium salamandrivorans in the Hoang Lien Range.
A new species of Limnonectes from Phu Yen Province, South-central Vietnam is described based on morphological and molecular differences. Morphologically, the new species is distinguishable from its congeners on the basis of a combination of the following diagnostic characters: SVL 49.8-77.9 mm in males, 40.8-61.8 mm in females; males with moderatel...
A new skink of the genus Scincella Mittleman, 1950, from Binh Phuoc Province, southern Vietnam is described based on morphological data, including hemipenial characters, and nucleotide sequences from COI. The following morphological characters diagnose Scincella baraensis sp. nov.: relatively small size in adults (snout-vent length up to 49.2 mm);...
We describe the tadpole of the Botsford’s leaf-litter frog Leptobrachella botsfordi, a species endemic to Mount Fansipan in northwest Vietnam, for the first time. Tadpoles of this species were found in steep, fast-flowing streams at elevations between 2500–2600 m asl. We also report a previously unknown locality for this species on Mount Fansipan,...
Frogs in the genus Megophrys are an Asian radiation of stream-breeding frogs. The tadpoles of many Megophrys species are undescribed; those that are described are often dubiously allocated to species by association with post metamorphic specimens at collection sites and without supportive molecular data. We provide detailed descriptions of the larv...
Megophrys Kuhl and Van Hasselt are an Asian radiation of terrestrial frogs which are usually associated with montane forest (Mahony et al. 2017). The Annam horned frog (Megophrys intermedia) is reported from montane evergreen forest in Vietnam and Lao People’s Democratic Republic (Stuart 2005; Hendrix et al. 2008; Nguyen et al. 2009; Tran 2013; Orl...
DNA barcoding is a quick tool for species identification using a fragment of DNA sequence
which is short, genetically informative, and easy to amplify. In the southern Vietnam, there are eight species of geckos genus Gekko (Squamata: Gekkonidae). Most of them are morphologically similar and used for food, medicine, and pet trade. Based on the sampl...
Frogs of the genus Microhyla include some of the world's smallest amphibians and represent the largest radiation of Asian microhylids, currently encompassing 50 species, distributed across the Oriental biogeographic region. The genus Microhyla remains one of the taxonomically most challenging groups of Asian frogs and was found to be paraphyletic w...
Mã vạch DNA là một công cụ định danh nhanh các loài dựa vào một đoạn trình tự DNA ngắn, dễ khuếch đại và có thông tin di truyền. Ở phía Nam Việt Nam, có tám loài tắc kè Gekko (Squamata: Gekkonidae) phân bố. Hầu hết các loài này có hình thái tương tự nhau và đang bị khai thác để làm thực phẩm, thuốc và buôn bán động vật cảnh. Nghiên cứu này thu thập...
Sterling’s toothed toad, (Oreolalax sterlingae), is the only member of the genus known from Vietnam. The species is thought to be endemic to Mount Fansipan, Lai Cao Province in northern Vietnam at elevations exceeding 2700 m a.s.l. O. sterlingae is one of just two Critically Endangered amphibians currently known from Vietnam and has an “Extent of O...
We report the distribution of the Western Black-bridged Leaf Turtle, Cyclemys atripons Iverson & McCord, 1997, from Vietnam for the first time. This species was recorded on Phu Quoc Island, Kien Giang Province, southern Vietnam based on morphological and molecular evidence. This record extends the distribution of this species approximately 100 km e...
We report the southernmost record of the Rhinoceros Snake, Gonyosoma boulengeri (Mocquard, 1897) from Phu Yen Province, southern Vietnam, based on a single specimen collected from forest in the Ca Range. This record extends the distribution of G. boulengeri approximately 600 km south of previous records in Vietnam (Quang Binh Province, central Viet...
Among 14 species of forest skinks (genus Sphenomorphus) in Vietnam, seven were recorded from southern part of the country. Shea's forest skink, S. sheai, was described from Kon Tum Plateau based on a single female. Similarly, the tridigital forest skink, S. tridigitus, was also described based on a single putrid and desiccated specimen found dead o...
We report Nguyen's fanged frog (Limnonectes nguyenorum) for the first time from Lao Cai Province in northwest Vietnam. Specimens were collected in June 2018 from Mount Fansipan in Hoang Lien National Park and identified based on morphological and molecular data. Our record extends the known elevation range of the species (up to 1.300m vs. 1.030m in...
Ba Den is an isolated mountain in southern Vietnam and home to two endemic species of lizards. Herein, we describe another endemic species, a new skink of the genus Scincella Mittleman, 1950, from the area based on morphological data, including hemipenial characters and nucleotide sequences of COI. The following morphological characters diagnose Sc...
Herein, we describe the new agamid species Acanthosaura phongdienensis sp. nov. from central Vietnam based on morphological and genetic data. Males of the new medium-sized species have a snout-vent length of up to 77.4 mm and females up to 64.7 mm. In both genders, the tail is longer than the snout-vent length. A spine occurs on each side of the ne...
Herein, we describe the new agamid species Acanthosaura phongdienensis sp. nov. from central Vietnam based on morphological and genetic data. Males of the new medium-sized species have a snout-vent length of up to 77.4 mm and females up to 64.7 mm. In both genders, the tail is longer than the snout-vent length. A spine occurs on each side of the ne...
We describe a new species of Microhyla from Tram Lap forest, Gia Lai Province, Central Vietnam based on morphological , molecular, and acoustic data. The new species resembles M. butleri morphologically, but differs from all congeners by a combination of the following morphological attributes: (1) medium-sized adult snout-vent length 25.2-27.0 mm i...
We describe a new agamid species of the genus Acanthosaura from Khanh Hoa and Phu Yen provinces, central Vietnam based on morphological and molecular data. The new species, Acanthosaura murphyi sp. nov., most closely resembles the Indochinese horned lizard (A. capra) and the Natalia horned lizard (A. nataliae), however, it can be differentiated fro...
We report the southernmost occurrence of the Eastern Black-bridged Leaf Turtle, Cyclemys pulchristriata Fritz, Gaul-ke & Lehr, 1997, from an isolated mountain in Ba Ria-Vung Tau Province, southern Vietnam, based on morphological and molecular data of a juvenile captured in the wild. This record extends the distribution of this species approximately...
A new forest skink of the genus Sphenomorphus Fitzinger, 1843 is described from Khanh Hoa Province, southern Vietnam based on morphological characters of four specimens and a fragment of 653 nucleotides of the gene COI. Sphenomorphus yersini sp. nov. is characterized by the following morphological characters: medium size in adults (snout-vent lengt...
Morphological, acoustic and molecular analyses result in the description of Leptolalax rowleyae sp. nov., a new species of frog in the Megophryidae, belonging to the L. applebyi Rowley & Cao species group from central Vietnam. It differs from its congeners by a combination of the following morphological attributes: (1) adult SVL 23.4–25.4 mm in mal...
We provide the list of the amphibian fauna of Hon Ba Nature Reserve, Khanh Hoa Province based on the results of three field trips conducted in 2015 and 2016. A total of 35 species of amphibians belonging to 6 families and 21 genera were recorded, of which, 17 species are new records for Hon Ba Nature Reserve. Seven species are threatened including...
A new kukri snake, Oligodon culaochamensis sp. nov., is described from Cu Lao Cham Islands, central Vietnam, based on the morphology of six specimens, including two males, three females and one juvenile. The new species belongs to the O. cyclurus group and differs from other congeners in this group by a combination of the following characters: medi...
Examples of cytonuclear discordance (CD), i.e. differing branching patterns from mitochondrial and nuclear DNA data, are increasing. This raises concerns about combining data from the two genomes for the purpose of reconstructing phyletic history. Because of this, we explore the efficacy of DNA barcoding based on the gene cytochrome c oxidase subun...
Kraits with black and white bands from Nui Chua National Park, central Vietnam are morphologically similar to the Burmese Krait, Bungarus magnimaculatus, however, analysis of molecular data finds them to be nested within the B. candidus complex.
The survey of fauna (mammals, amphibians, and reptiles) was conducted from May 22nd to August 4th 2016 at the intervening forest area (or the forest corridor) which located between Kon Ka Kinh National Park (KKK) and Kon Chu Rang Nature Reserve (KCR) and currently remains under the management of Dak Roong and Tram Lap State Forest Enterprise (SFEs)...
Asian Mountain Toads (Ophryophryne) are a poorly known genus of mostly small-sized anurans from southeastern China and Indochina. To shed light on the systematics within this group, the most comprehensive mitochondrial DNA phylogeny for the genus to date is presented, and the taxonomy and biogeography of this group is discussed. Complimented with e...