scholarly journals Predicting Geographic Distribution of Forensically Significant Blow Flies of Subfamily Chrysomyinae (Diptera: Calliphoridae) in Northern Thailand

Insects ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 106 ◽  
Author(s):  
Tunwadee Klong-klaew ◽  
Ratchadawan Ngoen-klan ◽  
Kittikhun Moophayak ◽  
Kom Sukontason ◽  
Kim Irvine ◽  
...  
Keyword(s):  
Climatic Factors ◽  
Seasonal Fluctuation ◽  
Mountainous Area ◽  
Blow Fly ◽  
Chiang Mai ◽  
Northern Thailand ◽  
Blow Flies ◽  
Adequate Knowledge ◽  
Funnel Trap ◽  
Study Sites

Blow flies (Diptera: Calliphoridae) are carrion-breeding flies that are commonly used as evidence in forensic investigation. An adequate knowledge of ecological and geographical data of blow fly has a direct application in forensic science, as far as estimating time of colonization or corpse relocation. The aim of this study was to evaluate the occurrence of four species of Chrysomyinae (Chrysomya pinguis, Chrysomya chani, Chrysomya villeneuvi, and Ceylonomyia nigripes) across six land use types in central Chiang Mai, northern Thailand. Eighteen study sites were selected for sampling across three districts of Chiang Mai province (Mueang Chiang Mai, Mae Rim, and Hang Dong). Adult flies were collected every two weeks using a funnel trap baited with 1-day tainted beef offal. The predicted geographic distributions of forensically important blow fly species were modeled using the computer program ArcGIS, based on selected climatic variables (temperature, relative humidity, and light intensity) recorded at study sites. During the study period, 1298 adult flies were collected, with peak fly occurrence during summer (April–May). Seasonal fluctuation patterns varied depending on fly species. Climatic factors displayed diverse impact on associated fly populations. Identified species were restricted mainly to mixed deciduous forests (MDF) especially in the mountainous area. None of these flies were trapped in an urban area.

scholarly journals Spatial Distribution of Forensically Significant Blow Flies in Subfamily Luciliinae (Diptera: Calliphoridae), Chiang Mai Province, Northern Thailand: Observations and Modeling Using GIS

Insects ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 181
Author(s):  
Tunwadee Klong-klaew ◽  
Ratchadawan Ngoen-klan ◽  
Kittikhun Moophayak ◽  
Kom Sukontason ◽  
Kim Irvine ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Relative Humidity ◽  
Light Intensity ◽  
Deciduous Forest ◽  
Blow Fly ◽  
Chiang Mai ◽  
Northern Thailand ◽  
Blow Flies ◽  
Mixed Deciduous Forest ◽  
Chiang Mai Province

Blow flies of the subfamily Luciliinae (Diptera: Calliphoridae) are one of the main forensically important subfamilies globally. In addition to being used to estimate the minimum post-mortem interval (PMImin), assuming colonization occurred after death, blow fly specimens found infesting a human corpse are used to determine if the corpse was relocated or if the individual ingested narcotics prior to death. The presence of these blow flies in a given area is strongly influenced by abiotic and biotic factors, such as temperature, elevation, and habitat. Having this information, along with geographical distributions and the characteristics of preferred habitats, is necessary to better understand the biology of this group. This study aimed to characterize the spatial distribution of Luciliinae throughout 18 sampling sites within six ecozones (disturbed mixed deciduous forest, mixed deciduous forest, mixed orchard, paddy field, lowland village, and city/town) in central Chiang Mai Province, northern Thailand over one year (May 2009–May 2010). The purpose of the study was to elucidate the relationship of blow fly species composition with environmental abiotic factors (e.g., temperature, relative humidity, light intensity), and to predict the distribution of the common species within this subfamily using GIS. Adult collections were performed biweekly, baited with one-day-old beef offal. A total of 2331 Luciliinae flies trapped, comprising eight species, of which the four predominant species were Hemipyrellia ligurriens (Wiedemann) (n = 1428; 61.3%), Lucilia porphyrina (Walker) (n = 381; 16.3%), Hemipyrellia pulchra (Wiedemann) (n = 293; 12.6%), and Lucilia papuensis Macquart (n = 129; 5.5%). Population density across species varied seasonally, peaking in August 2009 coinciding with the rainy season. Predicting population composition was based on a model developed with ArcGIS 9.2, which utilized environmental variables (temperature, relative humidity, and light intensity) in conjunction with abundance data. Models indicated H. ligurriens had the most widespread geographic distribution, while H. pulchra was predicted to occur largely in mixed orchards and lowland villages. Lucilia porphyrina and L. papuensis were less widespread, restricted mainly to mixed deciduous forest. This model, along with knowledge of forensic information, may be useful under certain investigations where the corpse may have been relocated.

scholarly journals TWO NEW RECORDS OF Isomyia paurogonita FANG AND FAN, 1986 AND Sumatria latifrons Malloch, 1926 (DIPTERA: CALLIPHORIDAE) FROM NORTHERN THAILAND, WITH REVISED KEY TO THE SPECIES OF Isomyia

2014 ◽  
Vol 56 (2) ◽  
pp. 175-177
Author(s):  
Nophawan Bunchu ◽  
Kittikhun Moophayak ◽  
Sangob Sanit ◽  
Kabkaew L. Sukontason ◽  
Kom Sukontason ◽  
...  
Keyword(s):  
Rare Species ◽  
New Records ◽  
Blow Fly ◽  
Chiang Mai ◽  
Northern Thailand ◽  
Chiang Mai Province ◽  
First Time

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.

scholarly journals SPECIES COMPOSITION OF CARRION BLOW FLIES IN NORTHERN THAILAND: ALTITUDE APPRAISAL

2014 ◽  
Vol 56 (2) ◽  
pp. 179-182 ◽  
Author(s):  
Kittikhun Moophayak ◽  
Tunwadee Klong-Klaew ◽  
Kom Sukontason ◽  
Hiromu Kurahashi ◽  
Jeffery K. Tomberlin ◽  
...  
Keyword(s):  
Species Composition ◽  
Chiang Mai ◽  
Northern Thailand ◽  
Blow Flies ◽  
Chrysomya Megacephala ◽  
Predominant Species ◽  
Forested Areas ◽  
Sweep Net

Distribution and occurrence of blow flies of forensic importance was performed during 2007 and 2008 in Chiang Mai and Lampang Provinces, northern Thailand. Surveys were conducted in forested areas for 30 minutes using a sweep net to collected flies attracted to a bait. A total of 2,115 blow flies belonging to six genera and 14 species were collected; Chrysomya megacephala (Fabricius) (44.7%), C. pinguis (Walker) (15.1%), C. chani Kurahashi (9.3%), C. thanomthini Kurahashi & Tumrasvin (0.3%); Achoetandrus rufifacies (Macquart) (10.5%), A. villeneuvi (Patton) (2.2%); Lucilia papuensis Macquart (2.2%), L. porphyrina (Walker) (12.4%), L. sinensis Aubertin (0.7%); Hemipyrellia ligurriens(Wiedemann) (1.3%), H. pulchra(Wiedemann) (0.1%); Hypopygiopsis infumata (Bigot) (0.6%), Hy. tumrasvini Kurahashi (0.2%) and Ceylonomyia nigripes Aubertin (0.4%). Among them, C. megacephala was the predominant species collected, particularly in the summer. The species likely to prevail in highland areas are C. pinguis, C. thanomthini, Hy. tumrasvini, L. papuensis and L. porphyrina.

Forensic and phylogeographic characterization of mtDNA lineages from northern Thailand (Chiang Mai)

2009 ◽  
Vol 123 (6) ◽  
pp. 495-501 ◽  
Author(s):  
Bettina Zimmermann ◽  
Martin Bodner ◽  
Sylvain Amory ◽  
Liane Fendt ◽  
Alexander Röck ◽  
...  
Keyword(s):  
Chiang Mai ◽  
Northern Thailand ◽  
Mtdna Lineages

scholarly journals Impact of Comingled Heterospecific Assemblages on Developmentally Based Estimates of the Post-Mortem Interval—A Study with Lucilia sericata (Meigen), Phormia regina (Meigen) and Calliphora vicina Robineau-Desvoidy (Diptera: Calliphoridae)

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 280
Author(s):  
Krystal R. Hans ◽  
Sherah L. Vanlaerhoven
Keyword(s):  
Growth Rate ◽  
Development Time ◽  
Lucilia Sericata ◽  
Phormia Regina ◽  
Calliphora Vicina ◽  
Immature Stages ◽  
Post Mortem ◽  
Blow Fly ◽  
Blow Flies ◽  
Post Mortem Interval

Estimates of the minimum post-mortem interval (mPMI) using the development rate of blow flies (Diptera: Calliphoridae) are common in modern forensic entomology casework. These estimates are based on single species developing in the absence of heterospecific interactions. Yet, in real-world situations, it is not uncommon to have 2 or more blow fly species developing on a body. Species interactions have the potential to change the acceptance of resources as suitable for oviposition, the timing of oviposition, growth rate, size and development time of immature stages, as well as impacting the survival of immature stages to reach adult. This study measured larval development and growth rate of the blow flies Lucilia sericata (Meigen, 1826), Phormia regina (Meigen, 1826) and Calliphora vicina Robineau-Desvoidy (Diptera: Calliphoridae) over five constant temperatures (15, 20, 25, 30, 35 °C), in the presence of conspecifics or two-species heterospecific assemblages. Temperature and species treatment interacted such that L. sericata larvae gained mass more rapidly when in the presence of P. regina at 20 and 30 °C, however only developed faster at first instar. At later stages, the presence of P. regina slowed development of L. sericata immatures. Development time of C. vicina immatures was not affected by the presence of P. regina, however larvae gained mass more slowly. Development time of P. regina immatures was faster in the presence of either L. sericata or C. vicina until third instar, at which point, the presence of L. sericata was neutral whereas C. vicina negatively impacted development time. Phormia regina larvae gained mass more rapidly in the presence of L. sericata at 20 °C but were negatively impacted at 25 °C by the presence of either L. sericata or C. vicina. The results of this study indicate that metrics such as development time or larval mass used for estimating mPMI with blow flies are impacted by the presence of comingled heterospecific blow fly assemblages. As the effects of heterospecific assemblages are not uniformly positive or negative between stages, temperatures or species combinations, more research into these effects is vital. Until then, caution should be used when estimating mPMI in cases with multiple blow fly species interacting on a body.

scholarly journals A25 Collections of adult black flies attracted to human and to buffalo in Chiang Mai, northern Thailand

2002 ◽  
Vol 53 (Supplement) ◽  
pp. 42
Author(s):  
H. Takaoka ◽  
C. Aoki ◽  
M. Fukuda ◽  
C. Wej ◽  
J. Atchariya
Keyword(s):  
Black Flies ◽  
Chiang Mai ◽  
Northern Thailand

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

Acta Tropica ◽  
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

scholarly journals Effect of Air Quality on Cardio-Respiratory Systems in Northern Thailand (Chiang Mai, Chiang Rai and Nan Province)

2020 ◽  
Vol 19 (4) ◽  
Author(s):  
Ketwarang Leelasittikul ◽  
◽  
Patcharee Koonkumchoo ◽  
Sasipa Buranapuntalug ◽  
Karan Pongpanit ◽  
...  
Keyword(s):  
Air Quality ◽  
Chiang Mai ◽  
Northern Thailand ◽  
Respiratory Systems
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