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2006 ที่น้องแอนทำ.pmd - Mahidol University

2006 ที่น้องแอนทำ.pmd - Mahidol University

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<strong>Mahidol</strong> <strong>University</strong> Abstract of International Publications <strong>2006</strong><br />

No.32<br />

Author(s) : Apiwathnasorn C, Asavanich A, Komalamisra N, Samung Y, Prummongkol S,<br />

Kanjanopas K.<br />

Title : The relationship between the abundance of Mansonia mosquitoes inhabiting a peat<br />

swamp forest and remotely sensed data.<br />

Source : Southeast Asian Journal of Tropical Medicine and Public Health. 37(3):463–467, <strong>2006</strong>.<br />

Document Type : Article.<br />

Keywords : –<br />

Abstract : The present study aimed to demonstrate the relationship of some environmental<br />

factors, vegetation greenness index (NDVI) and land surface temperature (LST),<br />

with the seasonal variations of Mansonia bonneae and Ma. uniformis in Khosit<br />

Subdistrict, Narathiwat Province. It was found that the Mansonia population lagged<br />

one month behind but correlated positively to NDVI, LST and rainfall. A rise in the<br />

number of mosquitoes was directly related to a rise in vegetation, temperature and<br />

rainfall.<br />

No.33<br />

Author(s) : Apiwathnasorn C, Samung Y, Prummongkol S, Asavanich A, Komalamisra N.<br />

Title : Surveys for natural host plants of Mansonia mosquitoes inhabiting Toh Daeng peat<br />

swamp forest, Narathiwat Province, Thailand.<br />

Source : Southeast Asian Journal of Tropical Medicine and Public Health. 37 (2): 279 – 282,<br />

<strong>2006</strong> (Mar).<br />

Document Type : Article.<br />

Keywords : –<br />

Abstract : Surveys were carried out monthly from April – October 2002 to examine 68 sampling<br />

sites around “Toh Daeng” peat swamp forest in Narathiwat Province, Thailand, of<br />

which 38 were known Mansonia – positive habitats and 30 were Manson/a – negative<br />

sites. The present larval surveys were qualitative owing to features of the host plants<br />

(location, distribution, and abundance), difficulties in locating and selecting the host<br />

plants in the swamp forest, and time constraints. Twenty attempts were made for<br />

each species for larvae. The presence of Mansonia larvae on each plant species was<br />

confirmed 6 times for each plant and location. Larvae of Ma. bonneae and Ma.<br />

uniformis were obtained from 18 plant species (10 families): Metroxylon sagu,<br />

Melaleuca cajuputi, Pandanus militaris, Pandanus immerses, Hanguana malayana,<br />

Typha angustifolia, Hymenachne acutigluma, Scirpodendron ghaeri, Scleria<br />

sumatrensis, Rhynchospora corymnosa, Sacclolepis Mica, Cyperus babakan, Cyperus<br />

corymbosus, Lepironia articulata, Leersia hexandra, Eichhornia crassipes, Pistia<br />

stratriotes and ferns. The emergent grasses, S. ghaeri, S. sumatrensis, H. acutigluma,<br />

R. corymnosa, S. indica, C. babakan, C. corymbosus, and L. articulata, were the<br />

preferred host plants. Samples from larger trees, M. sagu and M. cajuputi, yielded low<br />

numbers of 1 – 7 larvae per scraping. Ma. uniformis was recovered from most of the<br />

host plants, while Ma. bonneae preferred submerged plants and was not found on the<br />

floating aquatic plants, E. crassipes and P. stratriotes. The description of modified<br />

dipper and dipping techniques are given and discussed.<br />

No.34<br />

Author(s) : Apiwathnasorn C, Samung Y, Prummongkol S, Asavanich A, Komalamisra N,<br />

Mccall P.<br />

Title : Bionomics studies of Mansonia mosquitoes inhabiting the peat swamp forest.<br />

Source : Southeast Asian Journal of Tropical Medicine and Public Health. 37 (2): 272 – 278,<br />

<strong>2006</strong> (Mar).<br />

Document Type : Article.<br />

Keywords : –<br />

Abstract : The present study was conducted in the years 2000 – 2002 to determine the bionomics<br />

of Mansonia mosquitoes, vectors of nocturnally subperiodic Brugia malayi, inhabiting<br />

the peat swamp forest, “Phru Toh Daeng”, Narathiwat Province, Thailand. Fifty –<br />

four species of mosquitoes belonging to 12 genera were added, for the first time, to<br />

the list of animal fauna in the peat swamp forest. Mansonia mosquitoes were the<br />

most abundant (60 – 70%) by all collection methods and occurred throughout the year<br />

with a high biting density (10.5 – 57.8 bites per person – hour). Ma. bonneae was most<br />

prevalent (47.5%) and fed on a variety of animal hosts, including domestic cats, cows,<br />

monkeys, and man with a maximum biting density of 24.3 bites per person – hour in<br />

October. The infective bites were found for the first time in Ma. annulata collected at<br />

Ban Toh Daeng (13 00 – 14 00 hours) and also Ma. bonneae at forest shade (16 00 – 17<br />

00 hours) and in a village (20 00 – 21 00 hours) with rates of 0.6, 1.1 and 1.0%,<br />

12

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