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

Sanamxay, Daosavanh; Douangboubpha, Bounsavane; Bumrungsri, Sara; Xayavong, Syda; Xayaphet,; Satasook, Chutamas; Pj, Bates

doi:10.11646/zootaxa.3686.4.5

Cited by 12 publications

(20 citation statements)

References 10 publications

(9 reference statements)

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“…, Sanamxay et al. ]). Traffic seizure data detail an increasing number of seizures in addition to a growth in seizure size since monitoring began in 1975 (TRAFFIC database: http://trade.cites.org/#).…”

Section: Issuesmentioning

confidence: 99%

“…Overview of hunting and trade.-Globally, the illegal wildlife trade is worth approximately $20 billion annually (South and Wyatt 2011), and in SE Asia, hunting and trade remain a major threat to biodiversity, despite moves to tighten regulations regarding international trade in endangered species. Bushmeat markets across the region still openly display various species, some of which are yet to be scientifically described (as evidenced by the Laotian rock rat, and Biswamoyopterus laoensis squirrel [Jenkins et al 2004, Sanamxay et al 2013). Traffic seizure data detail an increasing number of seizures in addition to a growth in seizure size since monitoring began in 1975 (TRAF-FIC database: http://trade.cites.org/#).…”

Section: Hunting and Tradementioning

confidence: 99%

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Understanding the drivers ofSoutheastAsian biodiversity loss

2017

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Abstract. Southeast Asia (SE Asia) is a known global hotspot of biodiversity and endemism, yet the region is also one of the most biotically threatened. Ecosystems across the region are threatened by an array of drivers, each of which increases the probability of extinction of species in a variety of ecosystems. These issues are symptomatic of the issues that face the global tropics; however, with around 4 billion people in the wider region and the associated pressures on biodiversity, this region may be under some of the greatest levels of biotic threat. Deforestation rates in SE Asia are some of the highest globally, additionally it has the highest rate of mining in the tropics, around the greatest number of hydropower dams under construction, and a consumption of species for traditional medicines which is a threat to biodiversity globally. In this review, the greatest threats to regional biodiversity in the SE Asian region are discussed. Tree-plantations and deforestation represent one of the most imminent threats, and some countries have already lost over half their original forest cover (i.e., the Philippines, parts of Indonesia), with projections of as much as 98% loss for some regions in the coming decade. Hunting and trade represent a significant threat as demand stems not only for food, but also for medicine, for ornamentation, and as a status symbol. Mining represents a frequently overlooked threat, as the Asian region is one of the greatest exporters of limestone and various minerals globally, and the cost of this to biodiversity is not only through the direct loss of areas for mines, but also through the development of roads that further fragment the landscape, the leakage of heavy metals, and the destruction of limestone karsts, which represent global endemicity hotspots. Reservoir construction, wetland drainage, fires, pollution, invasive species, disease, and finally climate change are also considered. Once each issue has been discussed, the overall prognosis of regional biodiversity and priority actions to protect SE Asian biodiversity in the future is discussed.

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Section: Issuesmentioning

confidence: 99%

Section: Hunting and Tradementioning

confidence: 99%

Understanding the drivers ofSoutheastAsian biodiversity loss

2017

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“…These additions/modifications were necessary because over the past 10 years molecular and genetic techniques have evolved quickly and phylogenetic relationships between species have changed in many target groups (e.g. see Sanamxay et al 2013). We did not consider for our analysis the papers proposing new taxonomic arrangements still requiring investigation (e.g.…”

Section: Methodsmentioning

confidence: 99%

Least speciose among the most speciose: Natural history correlates of monospecific and bispecific genera of Rodentia and Soricomorpha

Amori

Bissattini

Gippoliti

et al. 2017

Integrative Zoology

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Monospecific and bispecific genera are of special concern as they represent unique phylogenetic/evolutionary trajectories within larger clades. In addition, as phylogenetically older taxa are supposed to be exposed to higher rarity and extinction risk, monospecific and bispecific genera may be intrinsically more prone to extinction risks than multispecies genera, although extinction risks also depend on the ecological and biological strategy of the species. Here, the distribution across biogeographical zones and the levels of threat to 2 speciose orders of mammals (monospecific and bispecific genera of Rodentia and Soricomorpha) are investigated in order to highlight major patterns at the worldwide scale. In Rodentia, 39.7% of the genera (n = 490) were monospecific and 17.9% were bispecific. In Soricomorpha, 44.4% of the total genera (n = 45) were monospecific and 15% were bispecific. There was a positive correlation between the number of monospecific genera and the total number of genera per family. Peaks of monospecific and bispecific genera richness were observed in Neotropical, Oriental and Afrotropical regions in rodents and in the Palearctic region in soricomorphs. Range size was significantly uneven across biogeographic region in rodents (with larger ranges in Nearctic and Oriental regions and smaller ranges in the Australian region), but there was no difference across biogeographic regions in terms of range size in soricomorphs. Most of the monospecific and bispecific genera occurred in forest habitat in both taxa. The frequency distribution of the monospecific and bispecific genera across IUCN categories did not differ significantly from the expected pattern using the total rodent genera and the multispecies genera.

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“…1981 (specimen ZSI 20705) found in northeastern India, B. laoensis Sanamxay et al, 2013 (specimen NUoL FES. MM.12.163), found in central Laos, and B. gaoligongensis Li et al, 2019 (specimens ZSI 20705 & KIZ 034924), found in southwest China (Figure 2, see Saha 1981;Sanamxay et al 2013;Li et al 2019). No molecular data have been obtained about this genus so far.…”

Section: Introductionmentioning

confidence: 99%

“…Since 2014, the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (CAS-SEABRI), has conducted several biodiversity expeditions to the northern Indo-China peninsula . This region is considered a globally important biodiversity hotspot for flora and fauna (Tordoff et al 2005), from where many species of mammals have been discovered or rediscovered since the 1990s (Amato et al 1999;Geissmann et al 2011;Sanamxay et al 2013;Fan et al 2017). In this work, using combined mitochondrial DNA and nuclear DNA loci, and morphological examination, we aim to revise the taxonomic status of the genus Biswamoyopterus and assess its phylogenetic position among flying squirrels.…”

Section: Introductionmentioning

confidence: 99%

Taxonomic revision and phylogenetic position of the flying squirrel genus Biswamoyopterus (Mammalia, Rodentia, Sciuridae, Pteromyini) on the northern Indo-China peninsula

Lwin¹,

Yang²,

Qin³

et al. 2019

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The flying squirrel genus Biswamoyopterus (Rodentia: Sciuridae: Pteromyini) was once considered to contain two species, Biswamoyopterus biswasi from northeastern India and B. laoensis from central Laos, identified from morphological characteristics of single specimen. However, based on similar morphological characteristics of two samples of the genus Biswamoyopterus collected recently from northern Laos and northern Myanmar, these can now be regarded as one species, B. biswasi being the correct name with B. laoensis the synonym. Small genetic distances among mitochondrial DNA and nuclear DNA strongly support these two samples as representatives of the same species. Thus, Biswamoyopterus is a monotypic genus, and the phylogenetic analyses strongly supported Biswamoyopterus as an independent genus of Pteromyini, acting as a sister group to Aeromys. Biswamoyopterus biswasi is distributed in the northern Indo-China peninsula, where it is exposed to a series of threats, such as intense hunting activity, illegal trade, and rapid habitat loss; this should warrant its classification as critically endangered according to the International Union for Conservation of Nature (IUCN) Red List criteria. Here, new specimen records for B. biswasi from northern Laos and northern Myanmar are presented.

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

Cited by 12 publications

References 10 publications

Understanding the drivers ofSoutheastAsian biodiversity loss

Understanding the drivers ofSoutheastAsian biodiversity loss

Least speciose among the most speciose: Natural history correlates of monospecific and bispecific genera of Rodentia and Soricomorpha

Taxonomic revision and phylogenetic position of the flying squirrel genus Biswamoyopterus (Mammalia, Rodentia, Sciuridae, Pteromyini) on the northern Indo-China peninsula

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