昆虫多样性三十年研究进展

当前, 全球昆虫数量和多样性均处于下降趋势, 而导致这一趋势的原因主要包括人为干扰及气候变化。本文基于森林、草地、农业、水生和土壤生态系统, 以植食性、访花、捕食性、寄生性、食果以及食腐昆虫为重点功能昆虫群, 综述了近三十年来国内外昆虫多样性研究领域的主要进展, 并分析了发展趋势。近年来, 昆虫多样性的研究维度不断拓展, 形态多样性研究不断深入, 系统发生多样性、功能多样性和遗传多样性等研究也显著加强。此外, 昆虫多样性研究的空间尺度也逐步扩大, 大尺度区域性研究甚至全球范围的调查持续增长。昆虫进化历史也被引入多样性格局研究中, 并随着系统发生信息学方法的普及而被整合到生态系统建成和生物多样性形成机制研究中。未来需要加强关键昆虫类群整合分类学研究、功能性状多样性、林冠昆虫多样性、互作网络结构等方向的研究。

Research progress on insect diversity

Background & Aims: We reviewed progress on insect biodiversity research over the past 30 years and further analyzed the trends, focusing on varied study systems (e.g. forest, grassland and agriculture etc.) and important functional insect groups, such as pollinators, herbivores and predators. Progresses: Declines of insect abundance and diversity are being reported worldwide. Anthropogenic disturbance, climate change, and other factors contribute to this crisis. Strategies & Prospects: Studies of insect biodiversity have expanded from early comparisons of species richness on composition to multiple dimensions of diversity. Current studies include both in-depth work on morphological diversity and much deeper consideration of genetic, phylogenetic, and functional diversity. Moreover, the studies’ scale has expanded from local to global. The development of morphometrics and phylogenetic bioinformatics further contributes to understanding evolution and global patterns in diversity. We also need to pay more attention to topics on integrative taxonomy on functional insect groups, functional diversity, insect diversity within canopy, and species interaction networks.