Description of a New Genus and Species of Rodent (Murinae, Muridae, Rodentia) from the Khammouan Limestone National Biodiversity Conservation Area in Lao PDR

Musser, Guy G.; Smith, Angela; Robinson, Mark; Lunde, Darrin P.

doi:10.1206/0003-0082(2005)497[0001:doanga]2.0.co;2

Cited by 40 publications

(25 citation statements)

References 18 publications

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“…is currently not known. However, it is of particular interest that it was collected from a region of central Lao PDR, which is home to other recently discovered rare and endemic rodent taxa such as the Kha-nyou, Laonastes aenigmamus Jenkins et al (2005) and the Lao limestone rat, Saxatilomys paulinae Musser et al (2005). Furthermore, endemism is not restricted to rodents or even mammals: the area is also home to the endemic Lao langur, Trachypithecus laotum (Thomas 1921) and in birds to the recently discovered bare-faced bulbul, Pycnonotus hualon Woxvold et al (2009).…”

Section: Charactermentioning

confidence: 99%

Rediscovery of Biswamoyopterus (Mammalia: Rodentia: Sciuridae: Pteromyini) in Asia, with the description of a new species from Lao PDR

Sanamxay¹,

Douangboubpha²,

Bumrungsri³

et al. 2013

Zootaxa

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A new species of the flying squirrel genus Biswamoyopterus is described from Lao PDR. It is based on a single specimen collected from a local food market at Ban Thongnami, Pak Kading District, Bolikhamxai Province. The new taxon shows close affinities to Biswamoyopterus biswasi, which is only known from the holotype collected in 1981, 1250 km from the current locality, in Arunachal Pradesh, Northeast India. However, it differs substantially in pelage colour, most particularly on the ventral surfaces of the body, patagia, tail membrane, and tail. The single specimen was found in an area of central Lao PDR, which is characterised by its extensive limestone karst formations and which is home to other rare endemic rodents, including the Kha-nyou (Laonastes aenigmamus) and the Lao limestone rat (Saxatilomys paulinae).

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Section: Charactermentioning

confidence: 99%

Rediscovery of Biswamoyopterus (Mammalia: Rodentia: Sciuridae: Pteromyini) in Asia, with the description of a new species from Lao PDR

Sanamxay¹,

Douangboubpha²,

Bumrungsri³

et al. 2013

Zootaxa

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“…Four species of Murinae rodents belonging to the Rattini tribe and endemic to limestone karsts are currently recognized in Southeast Asia, two in Thailand, Leopoldamys neilli (Marshall, 1976) and Niviventer hinpoon (Marshall, 1976), one in Lao PDR, Saxatilomys paulinae Musser, Smith, Robinson & Lunde, 2005, and Musser, Lunde & Son, 2006 (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Diversity and endemism of Murinae rodents in Thai limestone karsts

Latinne¹,

Waengsothorn²,

Rojanadilok³

et al. 2013

Systematics and Biodiversity

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This study aims to investigate the species diversity of rodents living in karst ecosystems of Thailand. A survey has been conducted throughout Thailand, 122 karsts sampled and 477 Murinae rodents live-trapped. Phylogenetic reconstructions were carried out using two mitochondrial markers (cytb, COI). A sequence-based species delimitation method completed by the analysis of the level of genetic divergence was then applied to define species boundaries within our dataset. The phylogenetic position of Niviventer hinpoon was also investigated and sequences obtained from the holotype specimen of this species were used to reliably identify samples of N. hinpoon. A total of 12 described Murinae species, corresponding to 17 deeply divergent genetic lineages, were encountered in limestone karsts of Thailand. Our study revealed an important genetic diversity within the traditionally recognized species Maxomys surifer (four highly divergent genetic lineages), Leopoldamys neilli (two highly divergent genetic lineages) and Berylmys bowersi (two highly divergent genetic lineages). These species could be considered as species complex and require further taxonomic work. This study also provides valuable information on the distribution of the two rodent species endemic to limestone karsts of Thailand, L. neilli and N. hinpoon. Leopoldamys neilli was the most abundant species encountered in Thai karsts during our survey. However, L. neilli specimens from western Thailand are genetically highly divergent from the remaining populations of L. neilli and could represent a separate species. Niviventer hinpoon, phylogenetically closely related to N. fulvescens, is much rarer and its distribution limited to central Thailand. Most of the other captured species are typically associated with forest ecosystems. This study suggests that limestone karsts play a key role in the preservation of the rodent species endemic to such habitat, but they would also provide refuges for the forest-dwelling Murinae rodents in deforested regions.

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“…Limestone outcroppings support tropical forest biodiversity at low latitudes around the globe (Felfili et al 2007). Tropical forests on limestone are viewed as relict communities, with many endemic and new species (Musser et al 2005;Crottini et al 2011;Bogutskaya et al 2012;Chen et al 2014;Peng et al 2015). Natural environmental factors and human activities have complex negative and positive effects on the biodiversity of these unique environments.…”

Section: Introductionmentioning

confidence: 99%

Environmental Factors Influencing Tree Species Regeneration in Different Forest Stands Growing on a Limestone Hill in Phrae Province, Northern Thailand

Asanok¹,

Marod²

2016

Journal of Forest and Environmental Science

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Improved knowledge of the environmental factors affecting the natural regeneration of tree species in limestone forest is urgently required for species conservation. We examined the environmental factors and tree species characteristics that are important for colonization in diverse forest stands growing on a limestone hill in northern Thailand. Our analysis estimated the relative influence of forest structure and environmental factors on the regeneration traits of tree species. We established sixty-four 100-m 2 plots in four forest stands on the limestone hill. We determined the species composition of canopy trees, regenerating seedlings, and saplings in relation to the physical environment. The relationships between environmental variables and tree species abundance were assessed by canonical correspondence analysis (CCA), and we used generalized linear mixed models to examine data on seedling/sapling abundances. The CCA ordination indicated that the abundance of tree species within the mixed deciduous forest was closely related to soil depth. The abundances of tree species growing within the sink-hole and hill-slope stands were positively related to the extent of rocky outcropping; light and soil moisture positively influenced the abundance of tree species in the hill-cliff stand. Physical factors had a greater effect on tree regeneration than did factors related to forest structure.Tree species, such as Ficus macleilandii, Dracaena cochinchinensis, and Phyllanthus mirabilis within the hill-cliff or sink-hole stand, colonized well on large rocky outcroppings that were well illuminated and had soft soils. These species regenerated well under conditions prevailing on the limestone hill. The colonization of several species in other stands was negatively influenced by environmental conditions at these sites. We found that natural regeneration of tree species on the limestone hill was difficult because of the prevailing combination of physical and biological factors. The influence of these factors was species dependent, and the magnitude of effects varied across forest stands.

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Description of a New Genus and Species of Rodent (Murinae, Muridae, Rodentia) from the Khammouan Limestone National Biodiversity Conservation Area in Lao PDR

Cited by 40 publications

References 18 publications

Rediscovery of Biswamoyopterus (Mammalia: Rodentia: Sciuridae: Pteromyini) in Asia, with the description of a new species from Lao PDR

Rediscovery of Biswamoyopterus (Mammalia: Rodentia: Sciuridae: Pteromyini) in Asia, with the description of a new species from Lao PDR

Diversity and endemism of Murinae rodents in Thai limestone karsts

Environmental Factors Influencing Tree Species Regeneration in Different Forest Stands Growing on a Limestone Hill in Phrae Province, Northern Thailand

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