Intraspecific trait variability mediates the effect of nitrogen addition and warming on aboveground productivity

• DOI: 10.1111/oik.09559
• Publication Date: 2023-01-05T09:57:37Z
• Authors: Li Zhang; Seraina Lisa Capp...; Mengjiao Huang; Xiang Liu; Yao Xiao; Françoise Cardou; Yizhong Rong; Shurong Zhou
• Keywords: Trait; Dominance (genetics)

Recent studies have shown that intraspecific trait variability is an important source of total variation. However, the contribution to ecosystem functions in face global change remains unknown. We quantified relative intra‐ and inter‐specific functional changes on productivity 48 plots subjected eight years nitrogen addition warming a Tibetan alpine meadow. The mean (community weighted mean) variation (Rao's quadratic entropy) values response were separated into driven by interspecific variations using variance partitioning method. found showed hump‐shaped addition, with highest at intermediate levels addition. This was mediated plant structure. A community having higher height individuals producing bigger leaf area can increase via niche complementary dominance effects, respectively. Warming reduced directly marginally decreased individuals' which suppressed indirectly. Our research suggests non‐negligible role maintaining functions, especially change.