scholarly journals Does forest conversion to tree plantations affect properties of subsoil horizons? Findings from mainland Southeast Asia (Lao PDR, Yunnan-China)

2021 ◽  
pp. e00457
Author(s):  
Xaysatith Souliyavongsa ◽  
Alain Pierret ◽  
Vidhaya Trelo-ges ◽  
Supat Isarangkool Na Ayutthaya ◽  
Saysongkham Sayavong ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Lao Pdr ◽  
Tree Plantations ◽  
Forest Conversion ◽  
Mainland Southeast Asia

Decoding the RNA viromes of rodent lungs provides new visions into the origin and evolution pattern of rodent-borne diseases in Mainland Southeast Asia

2020 ◽  
Author(s):  
Zhiqiang Wu ◽  
Yelin Han ◽  
Bo Liu ◽  
Hongying Li ◽  
Guangjian Zhu ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Mammalian Species ◽  
Spectral Characteristics ◽  
Lao Pdr ◽  
Origin And Evolution ◽  
The Core ◽  
Zoonotic Viruses ◽  
Evolution Pattern ◽  
East And Southeast Asia ◽  
Mainland Southeast Asia

Abstract BACKGROUND As the largest group of mammalian species widely distributed all over the world, rodents are the natural reservoirs of diverse zoonotic viruses. Comprehensive understanding of the core virome in diverse rodent species could therefore assist efforts to predict and reduce the risk of future emergence or re-emergence of rodent-borne zoonotic pathogens. RESULTS This study aimed to describe the viral range detected in rodent lungs in Mainland Southeast Asia. Lung samples were collected from 3,284 rodents and insectivores of the orders Rodentia , Soricomorpha , Scandentia , and Erinaceomorpha in eighteen provinces of Thailand, Lao PDR, and Cambodia throughout 2006-2018. Meta-transcriptomic analysis was used to outline the unique spectral characteristics of mammalian viruses within lungs and the ecological and genetic imprints of novel viruses. Further analysis revealed that the viral circulation in lungs is vastly different from those of throat and anal swabs reported previously. Many mammal or arthropod related viruses with distinct evolutionary lineages were reported for the first time in these species, and viruses related to known pathogens were characterized for their genetic characters, host species, and locations. CONCLUSIONS These results expand our understanding of the core viromes of rodents and insectivores in Mainland Southeast Asia and suggest that a high diversity of viruses remain undiscovered in this area. These findings, combined with our previous virome data from China, increase our knowledge of the viral community in wildlife and arthropod vectors in emerging disease hotspots of East and Southeast Asia.

A summary of the taxonomy and distribution of the red giant flying squirrel, Petaurista petaurista (Sciuridae, Sciurinae, Pteromyini), in mainland Southeast Asia with the first record from Lao PDR

Mammalia ◽  
2015 ◽  
Vol 79 (3) ◽  
Author(s):  
Daosavanh Sanamxay ◽  
Bounsavane Douangboubpha ◽  
Sara Bumrungsri ◽  
Chutamas Satasook ◽  
Paul J.J. Bates
Keyword(s):  
Southeast Asia ◽  
Lao Pdr ◽  
First Record ◽  
Flying Squirrel ◽  
Red Giant ◽  
Mainland Southeast Asia

AbstractThe occurrence of the red giant flying squirrel,

scholarly journals Decoding the RNA viromes in rodent lungs provides new insight into the origin and evolutionary patterns of rodent-borne pathogens in Mainland Southeast Asia

Microbiome ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Zhiqiang Wu ◽  
Yelin Han ◽  
Bo Liu ◽  
Hongying Li ◽  
Guangjian Zhu ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Mammalian Species ◽  
Spectral Characteristics ◽  
Lao Pdr ◽  
Evolutionary Patterns ◽  
The Core ◽  
Zoonotic Viruses ◽  
East And Southeast Asia ◽  
First Time ◽  
Mainland Southeast Asia

Abstract Background As the largest group of mammalian species, which are also widely distributed all over the world, rodents are the natural reservoirs for many diverse zoonotic viruses. A comprehensive understanding of the core virome of diverse rodents should therefore assist in efforts to reduce the risk of future emergence or re-emergence of rodent-borne zoonotic pathogens. Results This study aimed to describe the viral range that could be detected in the lungs of rodents from Mainland Southeast Asia. Lung samples were collected from 3284 rodents and insectivores of the orders Rodentia, Scandentia, and Eulipotyphla in eighteen provinces of Thailand, Lao PDR, and Cambodia throughout 2006–2018. Meta-transcriptomic analysis was used to outline the unique spectral characteristics of the mammalian viruses within these lungs and the ecological and genetic imprints of the novel viruses. Many mammalian- or arthropod-related viruses from distinct evolutionary lineages were reported for the first time in these species, and viruses related to known pathogens were characterized for their genomic and evolutionary characteristics, host species, and locations. Conclusions These results expand our understanding of the core viromes of rodents and insectivores from Mainland Southeast Asia and suggest that a high diversity of viruses remains to be found in rodent species of this area. These findings, combined with our previous virome data from China, increase our knowledge of the viral community in wildlife and arthropod vectors in emerging disease hotspots of East and Southeast Asia.

scholarly journals Decoding the RNA Viromes in Rodent Lungs Provides New Insight Into the Origin and Evolutionary Patterns of Rodent-borne Pathogens in Mainland Southeast Asia

2020 ◽  
Author(s):  
Zhiqiang Wu ◽  
Yelin Han ◽  
Bo Liu ◽  
Hongying Li ◽  
Guangjian Zhu ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Mammalian Species ◽  
Spectral Characteristics ◽  
Lao Pdr ◽  
Evolutionary Patterns ◽  
The Core ◽  
Zoonotic Viruses ◽  
East And Southeast Asia ◽  
First Time ◽  
Mainland Southeast Asia

Abstract BACKGROUND: As the largest group of mammalian species, which are also widely distributed all over the world, rodents are the natural reservoirs for many diverse zoonotic viruses. A comprehensive understanding of the core virome of diverse rodents should therefore assist in efforts to reduce the risk of future emergence or re-emergence of rodent-borne zoonotic pathogens. RESULTS: This study aimed to describe the viral range that could be detected in the lungs of rodents from Mainland Southeast Asia. Lung samples were collected from 3,284 rodents and insectivores of the orders Rodentia, Scandentia, and Eulipotyphla in eighteen provinces of Thailand, Lao PDR, and Cambodia throughout 2006-2018. Meta-transcriptomic analysis was used to outline the unique spectral characteristics of the mammalian viruses within these lungs and the ecological and genetic imprints of the novel viruses. Many mammalian- or arthropod-related viruses from distinct evolutionary lineages were reported for the first time in these species, and viruses related to known pathogens were characterized for their genomic and evolutionary characteristics, host species, and locations. CONCLUSIONS: These results expand our understanding of the core viromes of rodents and insectivores from Mainland Southeast Asia and suggest that a high diversity of viruses remains to be found in rodent species of this area. These findings, combined with our previous virome data from China, increase our knowledge of the viral community in wildlife and arthropod vectors in emerging disease hotspots of East and Southeast Asia.

A taxonomic revision of the genus Digitaria (Panicoideae: Poaceae) in mainland Southeast Asia

Phytotaxa ◽  
2016 ◽  
Vol 246 (4) ◽  
pp. 248 ◽  
Author(s):  
Boonchuang Boonsuk ◽  
Pranom Chantaranothai ◽  
Trevor R. Hodkinson
Keyword(s):  
Southeast Asia ◽  
Conservation Status ◽  
Lao Pdr ◽  
Taxonomic Revision ◽  
Peninsular Malaysia ◽  
Ecological Data ◽  
Cultivated Species ◽  
Sectional Rank ◽  
Mainland Southeast Asia

A taxonomic revision of the genus Digitaria (Poaceae) is presented for mainland Southeast Asia (Cambodia, Lao PDR, Myanmar, Peninsular Malaysia, Thailand and Vietnam). A total of 27 species (29 taxa) is enumerated. Two cultivated species, D. eriantha and D. milanjiana, are excluded from this account. A key to sections and species is provided and subgenus Leptoloma is reduced to sectional rank. Taxon descriptions include distribution and ecological data, conservation status, and notes on each species. Digitaria effusa and D. hentyi are reduced to synonyms of D. abyssinica, and D. siamensis is a synonym of D. sparsifructus. The lectotype is designated for D. stricta var. glabrescens.

Changes in Macrofungal Communities Following Forest Conversion into Tree Plantations in Southern Brazil

Biotropica ◽  
2015 ◽  
Vol 47 (5) ◽  
pp. 616-625 ◽  
Author(s):  
Claudia P. Paz ◽  
Mônica Gallon ◽  
Jair Putzke ◽  
Gislene Ganade
Keyword(s):  
Tree Plantations ◽  
Forest Conversion ◽  
Southern Brazil

Language policy and language planning in mainland Southeast Asia: Myanmar and Lisu

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
David Bradley
Keyword(s):  
Southeast Asia ◽  
Language Policy ◽  
Minority Groups ◽  
Minority Group ◽  
National Language ◽  
Minority Languages ◽  
Language Policy And Planning ◽  
Educational Strategies ◽  
Policy And Planning ◽  
Mainland Southeast Asia

AbstractMost nations in mainland Southeast Asia and elsewhere have one national language as a focus of national identity and unity, supported by a language policy which promotes and develops this language. Indigenous and immigrant minority groups within each nation may be marginalized; their languages may become endangered. Some of the official national language policies and ethnic policies of mainland Southeast Asian nations aim to support both a national language and indigenous minority languages, but usually the real policy is less positive. It is possible to use sociolinguistic and educational strategies to maintain the linguistic heritage and diversity of a nation, develop bilingual skills among minority groups, and integrate minorities successfully into the nations where they live, but this requires commitment and effort from the minorities themselves and from government and other authorities. The main focus of this paper is two case studies: one of language policy and planning in Myanmar, whose language policy and planning has rarely been discussed before. The other is on the Lisu, a minority group in Myanmar and surrounding countries, who have been relatively successful in maintaining their language.

scholarly journals Late Pleistocene human paleoecology in the highland savanna ecosystem of mainland Southeast Asia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kantapon Suraprasit ◽  
Rasmi Shoocongdej ◽  
Kanoknart Chintakanon ◽  
Hervé Bocherens
Keyword(s):  
Southeast Asia ◽  
Late Pleistocene ◽  
Tooth Enamel ◽  
Stable Carbon Isotope ◽  
Lower Latitude ◽  
Stable Carbon ◽  
Hunter Gatherers ◽  
Carbon And Oxygen Isotope ◽  
Northwestern Thailand ◽  
Mainland Southeast Asia

AbstractThe late Pleistocene settlement of highland settings in mainland Southeast Asia by Homo sapiens has challenged our species’s ability to occupy mountainous landscapes that acted as physical barriers to the expansion into lower-latitude Sunda islands during sea-level lowstands. Tham Lod Rockshelter in highland Pang Mapha (northwestern Thailand), dated between 34,000 and 12,000 years ago, has yielded evidence of Hoabinhian lithic assemblages and natural resource use by hunter-gatherer societies. To understand the process of early settlements of highland areas, we measured stable carbon and oxygen isotope compositions of Tham Lod human and faunal tooth enamel. Our assessment of the stable carbon isotope results suggests long-term opportunistic behavior among hunter-gatherers in foraging on a variety of food items in a mosaic environment and/or inhabiting an open forest edge during the terminal Pleistocene. This study reinforces the higher-latitude and -altitude extension of a forest-grassland mosaic ecosystem or savanna corridor (farther north into northwestern Thailand), which facilitated the dispersal of hunter-gatherers across mountainous areas and possibly allowed for consistency in a human subsistence strategy and Hoabinhian technology in the highlands of mainland Southeast Asia over a 20,000-year span near the end of the Pleistocene.

Sign in / Sign up

Export Citation Format

Share Document