ArticleEcology and evolution2026
Turnover-Dominated β-Diversity and Its Temperature and Trophic Drivers of Scarabaeoidea Assemblages Along an Elevational Gradient in a Tropical Island Rainforest in China.
Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Mountains serve as ideal natural laboratories for investigating biodiversity patterns along elevational gradients. This study examined α-diversity (species richness and abundance) and β-diversity (overall compositional dissimilarity and its turnover and nestedness) of Scarabaeoidea along an elevational gradient in a tropical rainforest, China. Scarabaeoidea assemblages were sampled continuously from early March to late November 2024 across 32 plots along an elevational gradient (371-1472 m a.s.l.) using ground and canopy traps. The aims were to evaluate the effects of potential drivers (temperature, humidity, litter biomass) and predator community (diversity and composition) on α- and β-diversity. Scarabaeoidea species richness showed no significant relationship with elevation but increased with litter biomass. Scarabaeoidea abundance exhibited a pronounced mid-elevational peak primarily driven by temperature, reflecting the strong thermal sensitivity of these ectotherms. Multisite β-diversity was high (
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