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首页> 美国卫生研究院文献>Journal of Medical Entomology >Spatial Structuring of Triatoma infestans (Hemiptera Reduviidae) Populations from Northwestern Argentina Using Wing Geometric Morphometry
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Spatial Structuring of Triatoma infestans (Hemiptera Reduviidae) Populations from Northwestern Argentina Using Wing Geometric Morphometry

机译：利用翼几何形态计量学分析阿根廷西北部的无足小夜蛾（HemipteraReduviidae）种群的空间结构

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Wing geometric morphometry was used to study the spatial structuring of populations of Triatoma infestans from different villages, ecotopes, and sites within a village in northwestern Argentina. A total of 308 male and 197 female wings of T. infestans collected from peridomestic and domestic ecotopes in March 2000 was analyzed. On average, female bugs had a significantly larger wing size than males. Triatomines collected from domiciles or structures associated with chickens had larger wings than bugs collected from goat or pig corrals. The wing size of bugs did not differ significantly between villages. Discriminant analyses of wing shape showed significant divergence between villages, ecotopes, and individual collection sites. The study of metric variation of males between sites belonging to the same ecotope also revealed significant heterogeneity. Indeed, within the same section of the village the difference between two goat corrals was sometimes greater than that between neighboring goat and pig corrals. Thus, morphometric heterogeneity within villages may be the result not only of ecotope and host associations, but also of physical isolation between subunits. The strong structuring of T. infestans populations in the study area indicates that recolonization could be traced back to a small geographic source.
机译：机翼几何形态学用于研究阿根廷西北部不同村庄，生态位和村庄内地点的三角藻感染的种群的空间结构。分析了2000年3月从家畜和家园生态环境中采集的308个男性和女性197个T. infestans侧翼。平均而言，雌虫的翅膀尺寸明显大于雄虫。与从山羊或猪的畜栏收集的虫子相比，从与鸡相关的住所或建筑物中收集的三氟甲烷磺酸盐的翅膀更大。虫子的翅膀大小在各个村庄之间没有显着差异。机翼形状的判别分析表明，村庄，生态环境和单个收集地点之间存在显着差异。相同生态位点之间雄性的度量变异研究也显示出显着的异质性。确实，在该村的同一地区，两个山羊畜栏之间的差异有时大于邻近的山羊畜栏之间的差异。因此，村庄内部形态的异质性不仅可能是生态位和寄主联系的结果，而且还可能是亚基之间物理隔离的结果。在研究区域中，T。infestans种群的强大结构表明，重新定殖可以追溯到一个小的地理来源。

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