Publication: Landmark and outline-based geometric morphometrics analysis of three Stomoxys flies (Diptera: Muscidae)
Issued Date
2016-01-01
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18036465
00155683
00155683
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2-s2.0-85017809148
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Mahidol University
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SCOPUS
Bibliographic Citation
Folia Parasitologica. Vol.63, (2016)
Suggested Citation
Tanasak Changbunjong, Suchada Sumruayphol, Thekhawet Weluwanarak, Jiraporn Ruangsittichai, Jean Pierre Dujardin Landmark and outline-based geometric morphometrics analysis of three Stomoxys flies (Diptera: Muscidae). Folia Parasitologica. Vol.63, (2016). doi:10.14411/fp.2016.037 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/40897
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Title
Landmark and outline-based geometric morphometrics analysis of three Stomoxys flies (Diptera: Muscidae)
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Abstract
© Institute of Parasitology, Biology Centre CAS. Adult flies of the genus Stomoxys Geoffroy, 1762 (Diptera: Muscidae), especially S. pullus Austen, 1909, S. uruma Shinonaga et Kano, 1966 and S. indicus Picard, 1908, are morphologically similar and sometimes difficult to distinguish when using external morphological characteristics. These species may act as vectors and/or potential vectors of many pathogens (virus, bacteria and protozoa). Their correct identification is important to target the vectors involved in the transmission of the pathogens and also helps in the fly control program.The aim of the present study was to distinguish three species which are difficult to separate using traditional diagnostic characters for species of Stomoxys such as colour patterns and body proportions. Modern morphometrics, both landmark and outline-based, was used to access wing geometry of S. pullus, S. uruma and S. indicus. A total of 198 and 190 wing pictures were analysed for landmark- and outline-based approaches, respectively. Wing shape was able to separate species and sexes of the three Stomoxys flies with highly significant difference of Mahalanobis distances. The cross-validated classification scores ranged from 76% to 100% for landmark and 77% to 96% for outline-based morphometrics. The geometry of wing features appears to be a very useful, low-cost tool to distinguish among the vectors S. pullus, S. uruma and S. indicus.