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首页> 外文期刊>Journal of Medical Entomology >Seasonal Fluctuations in Sarcophagidae (Diptera: Calyptratae) Assemblages in the Humid Chaco Ecoregion, Argentina
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Seasonal Fluctuations in Sarcophagidae (Diptera: Calyptratae) Assemblages in the Humid Chaco Ecoregion, Argentina

机译：Sarcophagidae（Diptera：Calyptratae）在阿根廷潮湿的Chaco Ecoregion中的季节性波动

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摘要

The seasonal fluctuations of flesh fly (Diptera: Sarcophagidae) assemblages were investigated from March 2015 to February 2016 in five habitat types in the Humid Chaco ecoregion, Chaco Province, Argentina. Three of the habitats were anthropized: an urban area, a cattle farm, and an alfalfa crop; and two were natural: a savanna and a forest. Flesh flies were collected monthly at 25 sampling points, five per habitat. In total, 5,790 male specimens comprising 55 species distributed in 15 genera were collected. The assemblage composition of flesh flies in each habitat and season was analyzed in terms of abundance, species richness, and diversity. In addition, the correlation between these community parameters and climatic factors (precipitation 7 and 14 d before samplings, temperature, and relative humidity) were evaluated in each habitat. The highest abundance and species richness of Sarcophagidae were registered in May (autumn) and June (winter), respectively. The lowest diversity values were observed between August and September (end of winter and early spring) in all habitats. However, flesh flies were present and well represented (in terms of species richness) throughout the year in all habitat types. Fluctuations in the abundance of the most abundant species collected were analyzed. The climatic factors were correlated with diversity and species richness in the urban, cattle farm, and savanna habitats. This study revealed that flesh fly assemblages differed temporally between different types of habitats in accordance with climatic factors and microclimate conditions.
机译：2015年3月至2016年2月，在阿根廷查科省潮湿查科生态区的五种栖息地类型中，对肉蝇（双翅目：麻蝇科）组合的季节波动进行了调查。其中有三个栖息地是人为的：一个城区、一个养牛场和一种苜蓿作物；其中两个是天然的：一片稀树草原和一片森林。每月在25个采样点收集果蝇，每个栖息地5个。共收集到5790份雄性标本，包括15属55种。从丰富度、物种丰富度和多样性方面分析了每个栖息地和季节果蝇的组合组成。此外，在每个栖息地评估了这些群落参数与气候因素（采样前7天和14天的降水量、温度和相对湿度）之间的相关性。5月（秋季）和6月（冬季）分别记录了石棺科的最高丰度和物种丰富度。8月至9月（冬末和早春），所有栖息地的多样性值最低。然而，在所有栖息地类型中，全年都有果蝇存在，并有很好的代表性（就物种丰富度而言）。对收集到的最丰富物种的丰度波动进行了分析。气候因素与城市、牛场和稀树草原栖息地的多样性和物种丰富度相关。这项研究表明，不同类型栖息地的果蝇群落在时间上因气候因素和小气候条件而异。

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