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Relationship between moth (night active Lepidoptera) diversity and vegetation characteristics in southern Sweden
Journal of Insect Conservation ( IF 1.9 ) Pub Date : 2020-10-06 , DOI: 10.1007/s10841-020-00270-y
Torbjörn Tyler

The diversity and community composition of moths (both macro- and micromoths) at 32 sites, representing a wide range of habitat types (forests, grasslands, wetlands, agricultural and urban areas) within a restricted region in central Scania,southern-most Sweden, was investigated by use of light moth traps and compared with vascular plant species richness and habitat characteristics. The results revealed a highly significant general association between vegetation composition and thecomposition of the moth community and multivariate (CCA) analyses indicated light availability and soil fertility parameters (pH and macronutrients) to be the habitat characteristics that best correlated with moth community composition. Less strong,but still significant, positive relationships between moth abundance and local vascular plant diversity were also revealed. Moth species richness was positively correlated with diversity of woody plant genera in the neighborhood, but not with localvascular plant diversity in general. As for more general site characteristics, there were tendencies for higher moth richnessand abundance at sites with more productive soils (well-drained, high pH, high nutrient availability), while shading/tree canopy cover, management, soil disturbance regimes and nectar production appeared unrelated to moth community parameters. It is concluded that local moth assemblages are strongly influenced by site characteristics and vegetation composition. Implications for insect conservation: The results show that obtaining moth data on a local scale is useful for conservation planning and does not need to be very cumbersome. Local moth assemblages monitored are indeed related to local site characteristics of conservation relevance. (Less)

中文翻译:

瑞典南部蛾类(夜间活动的鳞翅目)多样性与植被特征的关系

32 个地点的飞蛾(包括大型飞蛾和小飞蛾)的多样性和群落组成,代表了瑞典最南部斯堪尼亚中部限制区域内的各种栖息地类型(森林、草原、湿地、农业和城市地区),通过使用轻型飞蛾陷阱进行调查,并与维管植物物种丰富度和栖息地特征进行了比较。结果显示植被组成与飞蛾群落组成之间存在高度显着的普遍关联,多变量 (CCA) 分析表明光照可用性和土壤肥力参数(pH 值和常量营养素)是与飞蛾群落组成最相关的栖息地特征。还揭示了蛾类丰度与当地维管植物多样性之间不那么强烈但仍然显着的正相关关系。蛾类丰富度与邻域木本植物属多样性呈正相关,但与局部维管植物多样性总体上不相关。至于更一般的立地特征,在土壤生产力更高(排水良好、pH 值高、养分利用率高)的地方,蛾类丰富度和丰度趋于更高,而遮荫/树冠覆盖、管理、土壤干扰机制和花蜜生产出现了与蛾群落参数无关。得出的结论是,当地的蛾类组合受到场地特征和植被组成的强烈影响。对昆虫保护的影响:结果表明,获取局部范围内的飞蛾数据对于保护规划很有用,并且不需要非常麻烦。监测到的当地蛾类群落确实与具有保护意义的当地遗址特征有关。(较少的)
更新日期:2020-10-06
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