Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand

During the annual fly survey at Doi Nang Kaew in Doi Saket District, Chiang Mai Province of Thailand in 2011, Isomyia paurogonitaFang & Fan, 1986 (Diptera: Calliphoridae) and Sumatria latifrons Malloch, 1926 (Diptera: Calliphoridae) were collected for the first time in Thailand. They are the rare species of the subfamily Rhiniinae (tribe Cosminini). Prior to this finding, fifteen species of Isomyia and two species of Sumatriawere recorded from Thailand. Therefore, 96 blow fly species have been found in this country. These new locality records of both flies are very important for further research on their biology and ecology in Thailand.

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Daily and seasonal variation of muscid flies (Diptera: Muscidae) in Chiang Mai province, northern Thailand

Acta Tropica ◽

10.1016/j.actatropica.2020.105348 ◽

2020 ◽

Vol 204 ◽

pp. 105348

Author(s):

Tunwadee Klong-klaew ◽

Narin Sontigun ◽

Chutharat Samerjai ◽

Sangob Sanit ◽

Kom Sukontason ◽

...

Keyword(s):

Seasonal Variation ◽

Chiang Mai ◽

Northern Thailand ◽

Chiang Mai Province

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Risk Perception on Haze Pollution and Willingness to Pay for Self-Protection and Haze Management in Chiang Mai Province, Northern Thailand

Atmosphere ◽

10.3390/atmos11060600 ◽

2020 ◽

Vol 11 (6) ◽

pp. 600

Author(s):

Sukanya Sereenonchai ◽

Noppol Arunrat ◽

Duangporn Kamnoonwatana

Keyword(s):

Risk Perception ◽

Willingness To Pay ◽

Rural Areas ◽

Contingent Valuation Method ◽

Influential Factors ◽

Chiang Mai ◽

Northern Thailand ◽

Haze Pollution ◽

Chiang Mai Province ◽

Self Protection

Air pollution is an important environmental health risk that affects people worldwide, including those in the Chiang Mai Province, Northern Thailand. A questionnaire survey based on accidental sampling to explore risk perception and willingness to pay (WTP) for self-protection and haze management was conducted via face-to-face interview of 250 households, in one urban and four rural areas (covering one rural plain and three different levels of highland areas). Data were analyzed using the contingent valuation method, a one-way ANOVA, correlation, and stepwise multiple linear regression. Key findings on risk perception found that urban respondents living in the lowest areas were more familiar with and experienced more effects from serious haze, while having the least trust in the local authority’s management to cope with the situation. Influential factors determining familiarity and effect for people in most areas were their harm and severe haze experiences. Comparing WTP for a mask, an air purifier, and local authorities support, respondents in all areas were mainly willing to pay for a mask; this was influenced by various factors. The highest average price of willingness to pay was found in the urban area. The important significant factors that increased WTP for self-protection of urban respondents was severe haze experience, while rural respondents who had a longer stay duration, including married farmers in highland areas with less education, tended to have less WTP for self-protection but more WTP for haze management. Avoiding crop residue burning is the first strategy that should be used to deal with haze pollution. Early burning schedules of the highland people should be formally announced, and prompt risk communication should be implemented by local and central authorities and media practitioners.

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Allagelena monticola sp. n. (Araneae: Agelenidae), a new species of funnel-web spiders from northern Thailand

Zootaxa ◽

10.11646/zootaxa.1397.1.6 ◽

2007 ◽

Vol 1397 (1) ◽

pp. 47-53 ◽

Cited By ~ 1

Author(s):

THANAPHUM CHAMI-KRANON ◽

NATDANAI LIKHITRAKARN ◽

PAKAWIN DANKITTIPAKUL

Keyword(s):

New Species ◽

Southeast Asia ◽

National Park ◽

Chiang Mai ◽

Northern Thailand ◽

Chiang Mai Province ◽

A New Species ◽

Doi Inthanon

A new species of the funnel-web spiders from Thailand, Allagelena monticola sp. n., is described and illustrated. The types of this species were collected from remnant patches of pristine evergreen hill forest in the Doi Inthanon National Park, Chiang Mai Province, northern Thailand. The new species resembles the widely distributed species A. opulenta (L. Koch), which is known from China, Korea and Japan. This discovery expands the known zoogeographical distribution of the genus Allagelena southwards into tropical Southeast Asia.

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Dendrobium chiangdaoense (Orchidaceae), a new species from Thailand

Phytotaxa ◽

10.11646/phytotaxa.307.1.8 ◽

2017 ◽

Vol 307 (1) ◽

pp. 84 ◽

Cited By ~ 1

Author(s):

PHATTARAVEE PROMMANUT ◽

MANIT KIDYOO ◽

WINS BUDDHAWONG ◽

SOMRAN SUDDEE

Keyword(s):

New Species ◽

Rain Forest ◽

Deciduous Forest ◽

Type Locality ◽

Chiang Mai ◽

Northern Thailand ◽

Montane Rain Forest ◽

Mixed Deciduous Forest ◽

Chiang Mai Province ◽

A New Species

Dendrobium chiangdaoense, a new species belonging to Dendrobium section Stachyobium is described and illustrated. It is only known from the type locality in mixed deciduous forest at ca. 800 m elev. on limestone hills in Chiang Dao District, Chiang Mai Province, northern Thailand. It most closely resembles D. dixonianum, a more widespread northern Thailand species occurring in upper montane rain forest at 1,650–1,800 m elev.

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A Preliminary Study on Morphological Variations from Wet and Dry Microhabitats of Hyophila involuta (Pottiaceae, Bryophyta): A Case Study from Chiang Mai Province, Northern Thailand

Chiang Mai University Journal of Natural Sciences ◽

10.12982/cmujns.2021.020 ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Narin Printarakul ◽

◽

Arunothai Jampeetong ◽

Keyword(s):

National Park ◽

Leaf Size ◽

Stem Diameter ◽

Stem Height ◽

Chiang Mai ◽

Northern Thailand ◽

Morphological Variations ◽

Blade Thickness ◽

Chiang Mai Province

The morphological variations of a cosmopolitan moss, Hyophila involuta (Hook.) A. Jaeger, are reported here using t-test to distinguish 2 distinct forms of ecotypes (humid and arid forms). Three replicates each from 145 collections from 27 places in Doi Inthanon National Park, Doi Suthep-Pui National Park, and Chiang Dao Wildlife Sanctuary, Chiang Mai province, northern Thailand were examined. Eleven gametophytic characters were measured such as stem height, branching, stem diameter, leaf size, leaf blade thickness, size of median and basal laminal cells, length of innermost perichaetial leaf, and length of archegonia. Of these, 10 characters, viz. stem height, leaf size, stem diameter, branching, length of basal laminal cells, length of innermost perichaetial leaf, and length of archegonia were significantly different among populations. Other additional features of the two different ecotypes of H. involuta were recorded and discussed including leaf apices, innermost perichaetial leaf apices, marginal teeth, hyaline nodules, and number of cortical and medullary central strand cells.

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Community-based Voluntary Counseling and Testing Services in Rural Communities of Chiang Mai Province, Northern Thailand

AIDS and Behavior ◽

10.1007/s10461-007-9242-7 ◽

2007 ◽

Vol 11 (5) ◽

pp. 770-777 ◽

Cited By ~ 14

Author(s):

Surinda Kawichai ◽

David D. Celentano ◽

Suwat Chariyalertsak ◽

Surasing Visrutaratna ◽

Onsri Short ◽

...

Keyword(s):

Rural Communities ◽

Chiang Mai ◽

Community Based ◽

Northern Thailand ◽

Voluntary Counseling ◽

Voluntary Counseling And Testing ◽

Counseling And Testing ◽

Chiang Mai Province

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Assessment of pesticide exposure among smallholder tangerine farmers in Chiang Mai province, northern Thailand

Occupational and Environmental Medicine ◽

10.1136/oemed-2011-100382.359 ◽

2011 ◽

Vol 68 (Suppl_1) ◽

pp. A107-A108

Author(s):

T. Prapamontol ◽

A. Mangklabruks ◽

L. Aupaiboon ◽

S. Hongsibsong

Keyword(s):

Pesticide Exposure ◽

Chiang Mai ◽

Northern Thailand ◽

Chiang Mai Province

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The Pesticide Exposure of People Living in Agricultural Community, Northern Thailand

Journal of Toxicology ◽

10.1155/2018/4168034 ◽

2018 ◽

Vol 2018 ◽

pp. 1-7 ◽

Cited By ~ 8

Author(s):

Anurak Wongta ◽

Nootchakarn Sawarng ◽

Phannika Tongchai ◽

Kunrunya Sutan ◽

Tanyaporn Kerdnoi ◽

...

Keyword(s):

Pesticide Exposure ◽

Urine Samples ◽

Agricultural Area ◽

Chiang Mai ◽

Northern Thailand ◽

Agricultural Community ◽

Chiang Mai Province ◽

Almost All ◽

Ellman’S Method ◽

Study Participants

Background and Aim. Biomarkers of pesticide exposure are generally lacking in communities where agricultural crops are grown. The purpose of this study was to focus on evaluating biomarkers of pesticide exposure in people living in an agricultural area of San Pa Tong District in Chiang Mai Province, northern Thailand. Materials and Methods. One hundred and twenty-four participants (38 nonfarm workers, 38 rice growers, 31 longan growers, and 17 vegetable growers) from San Pa Tong District gave consent to participate in the study. Pesticide exposure was assessed by determining acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) levels in blood samples using Ellman’s method and measuring 6-dialkylphosphate metabolites (DAPs), 3-phenoxybenzoic acid (3-PBA), and glyphosate in urine samples using chromatographic methods. Results. AChE and BChE activities in the nonfarm worker group had higher level than those in the grower groups. DAPs were detected in almost all urine samples and 3-PBA was detected in 12-45% of each group, while glyphosate was found in 11 – 30% among the three groups of growers but not in nonfarm workers. Conclusion. In this study, participants living in an agricultural area of San Pa Tong District were exposed to organophosphate, synthetic pyrethroid, and glyphosate through multiple pathways.

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