关键词: 螺髻山, 非飞行小型哺乳动物, 海拔, 多样性

Abstract: We surveyed elevational diversity of nonvolant small mammals in Luoji Mountains Nature Reserve during April to August,2009. We sampled nonvolant small mammals using in kill traps in seven sites at elevations varying from 1 800 to 4 150 m. Within each site, we sampled along three separate transects. In 10 500 trap nights, we captured 491 individuals representing 15 species,8 genera, and 5 families. We found correlations between elevation and relative abundance, abundance and diversity index of nonvolant small mammals. We found that sampling sites on cool (generally northerly) aspects slopes and near to nearest water source had higher richness and diversity than those on warm (sunny) slopes and far from nearest water source. Maximum richness and diversity occurred at mid-elevations (2 200 - 2 600 m) where precipitation was richest and several types of plants reached their maximum diversity and richness. Richness and diversity were lowest at high (> 3 800 m) and low elevations (< 2 000 m). Highest diversity and richness was also associated with mid-and lowelevation deciduous broad-leaved forests, and with subtropical theropencedrymion sampling sites;low diversity and richness with alpine scree,alpine meadow and river valley tussock sites.

Key words: Elevation, Diversity, Luoji Mt, Nonvolant small mammals