Alpine Grassland Ecological Restoration Approaches Shape Insect Trophic Guild Diversity: A Multi-Dimensional Assessment from Alpha to Dark Diversity.

ABSTRACT: The severe degradation of alpine grasslands on the Qinghai-Tibet Plateau poses a significant threat to regional ecological security. While insects are critical for ecosystem functions, their responses to restoration measures in these fragile habitats are poorly documented. This study assessed the initial impacts of four restoration approaches-grazing exclusion fencing (FE), no-till reseeding (FR), planting grass (GC), and grazing control (CK)-on insect trophic guilds (herbivores, predators, saprophagous, and omnivores) in the Qilian Mountains. Using a multi-dimensional indicator (alpha, zeta, and dark diversity), we systematically assessed community assembly and recovery potential. The results revealed the following: (1) FE supported the highest insect abundance, dominated by phytophagous

SUBMITTER: Tang K 

PROVIDER: S-EPMC12653117 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature