DeWalt R Edward, Ower Geoffrey Donald
Insects. 2019 Apr 6;10(4):99. doi: 10.3390/insects10040099.
Stoneflies (Insecta: Plecoptera) provide ecosystem services as indicators of water quality, as food for predators, as mediators of energy flow and nutrient cycling, and through cultural services related to recreation and artistic creativity. The Plecoptera Species File (PSF) aggregates stonefly nomenclature, distribution, and literature to help society and scientists understand the value of services stoneflies provide. Using PSF data, we examined global and regional diversity, compared species description rates, and predicted future species description numbers through the year 2100. Through 2018, extant species totaled 3,718 with Temperate Asia having the greatest regional diversity at 1178 species. The Perlidae was the most species-rich of the 16 families at 1120 species. The recent global rate of species description was 43.6 species/yr, with Temperate Asia having the highest regional rate at 13.7 species/yr, followed by China and South America adding approximately 9.0 species/yr. We predicted that 1140 ± 130 new species would be described globally by 2050, and 2130 ± 330 by the year 2100, most of the increase occurring in China and South America. We discuss the possibility of reaching these predicted values.
石蝇（昆虫纲：襀翅目）作为水质指标、捕食者的食物、能量流动和养分循环的调节者，并通过与娱乐和艺术创作相关的文化服务，提供生态系统服务。襀翅目物种档案（PSF）汇总了石蝇的命名法、分布和文献，以帮助社会和科学家了解石蝇所提供服务的价值。利用PSF数据，我们研究了全球和区域多样性，比较了物种描述率，并预测了到2100年未来的物种描述数量。截至2018年，现存物种总数为3718种，亚洲温带地区的区域多样性最高，有1178种。在16个科中，卷襀科的物种最为丰富，有1120种。最近全球物种描述率为43.6种/年，亚洲温带地区的区域描述率最高，为13.7种/年，其次是中国和南美洲，每年增加约9.0种。我们预测，到2050年全球将描述1140±130个新物种，到2100年将描述2130±330个新物种，大部分增加将发生在中国和南美洲。我们讨论了达到这些预测值的可能性。
