Native Cuscuta campestris restrains exotic Mikania micrantha and enhances soil resources beneficial to natives in the invaded communities |
| |
Authors: | Hua Yu Wei-Ming He Jian Liu Shi-Li Miao Ming Dong |
| |
Institution: | (1) State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China;(2) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China;(3) Institute of Environment Research, Shandong University, Ji’nan, 250100, China |
| |
Abstract: | Nutrients in exotic species and invaded communities play a key role in determining the dynamics of invaders and the invasibility
of a receipt community. This study focused on the effects of the native holoparasite Cuscuta campestris (for short Cuscuta) on nutrients in the exotic invasive Mikania micrantha (for short Mikania) and stands invaded by Mikania. We conducted a set of field investigations on Mikania with Cuscuta parasitism for 1–4 years, and measured soil properties, community composition, and the growth and nutrient content of Mikania and Cuscuta in two types of sub-communities (i.e. with Mikania only, or with Mikania and Cuscuta). Cuscuta dramatically reduced the cover, biomass, and nutrients (i.e. N, P, and K content) of Mikania, significantly enhanced soil water, pH and nutrient content (i.e. organic matter, total N and P, available P and K), and
greatly increased the cover and species richness of native plants. In addition, N and K of Cuscuta were positively correlated with N of Mikania, which was negatively associated with soil total N, available P and K. These findings suggest that Cuscuta may be an effective measure against Mikania and be beneficial to the restoration of invaded communities. |
| |
Keywords: | Biological control Community recovery Exotic invasive species Host-parasite interaction Nutrient process Plant-soil continuum |
本文献已被 SpringerLink 等数据库收录! |
|