Details

Autor(en) / Beteiligte

• Peng, Qiutong
• Huo, Bingbing
• Yang, Hui
• Xu, Zhiyan
• Mao, Hongzhi
• Yang, Shiwen
• Dai, Yuitai
• Li, Zhongqiang
• Deng, Xuwei

Titel

Increased invasion of submerged macrophytes makes native species more susceptible to eutrophication in freshwater ecosystems

Ist Teil von

• The Science of the total environment, 2024-01, Vol.909, p.168658-168658, Article 168658

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Invasion and eutrophication are considered to pose serious threats to freshwater biodiversity and ecosystem function. However, little is known about the synergistic effects of invasion density and nutrient concentration on native submerged macrophytes. Here, we selected a common invasive species (Elodea nuttallii) and two native plants (Hydrilla verticillata and Potamogeton maackianus) to elucidate the effects of invasion density and eutrophication on native submerged plants. We found that (1) high nutrient concentrations inhibited the growth of both invasive and native species, but E. nuttallii, with a wide ecological niche, was more tolerant to eutrophication than the two native species. (2) High invasion density had a remarkable negative effect on the growth of the two native species under the medium and high nutrient concentrations. (3) Medium and high invasion densities of E. nuttallii made native macrophytes more susceptible to eutrophication. (4) The two native macrophytes had species-specific responses to medium and high invasion densities under medium and high nutrient concentrations. Specifically, a high invasion density of E. nuttallii significantly delayed the growth of H. verticillata rather than P. maackianus. Thus, it is necessary to consider the synergistic effects of invasion with eutrophication when assessing invasion in freshwater ecosystems. And our results implied that invasion with eutrophication was a powerful factor determining the results of interspecific competition among submerged macrophytes, which could change the biodiversity, community structure and functions of freshwater ecosystems. [Display omitted] •High nutrient inhibits the growth of submerged plants, regardless of native or invasion species.•High invasion under high nutrient can lead to the shift in dominance patterns of macrophytes.•The increase in invasion density of E. nuttallii delayed the growth of H. verticillata.•The increase in invasion density reduced the ecological niche and biomass of native species.