Responses of four submerged macrophytes to freshwater snail density (Radix swinhoei) under clear-water conditions: A mesocosm study
文献类型：期刊论文
| 作者 | Zhi, Yongwei1,2,3; Liu, Yang1,2,3; Li, Wei2,3; Cao, Yu2,3 |
| 刊名 | ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2020-06-23 |
| 页码 | 10 |
| 关键词 | antiherbivory clear water negative effects snail density species-specific submerged macrophytes |
| ISSN号 | 2045-7758 |
| DOI | 10.1002/ece3.6489 |
| 英文摘要 | Macrophytes play a key role in stabilizing clear-water conditions in shallow freshwater ecosystems. Their populations are maintained by a balance between plant grazing and plant growth. As a freshwater snail commonly found in shallow lakes,Radix swinhoeican affect the growth of submerged macrophytes by removing epiphyton from the surface of aquatic plants and by grazing directly on macrophyte organs. Thus, we conducted a long-term (11-month) experiment to explore the effects of snail density on macrophytes with distinctive structures in an outdoor clear-water mesocosm system (with relatively low total nitrogen (TN, 0.66 +/- 0.27 mg/L) and total phosphorus (TP, 36 +/- 20 mu g/L) and a phytoplankton chlorophylla(Chla) range of 14.8 +/- 4.9 mu g/L) based on two different snail densities (low and high) and four macrophyte species treatments (Myriophyllum spicatum,Potamogeton wrightii,P. crispus, andP. oxyphyllus). In the high-density treatment, snail biomass and abundance (36.5 +/- 16.5 g/m(2)and 169 +/- 92 ind/m(2), respectively) were approximately twice that observed in the low-density treatment, resulting in lower total and aboveground biomass and ramet number in the macrophytes. In addition, plant height and plant volume inhabited (PVI) showed species-specific responses to snail densities, that is, the height ofP. oxyphyllusand PVI ofM. spicatumwere both higher under low-density treatment. Thus, compared with low-density treatment, the inhibitory effects of long-term high snail density on macrophytes by direct feeding may be greater than the positive effects resulting from epiphyton clearance when under clear-water conditions with low epiphyton biomass. Thus, under clear-water conditions, the growth and community composition of submerged macrophytes could be potentially modified by the manual addition of invertebrates (i.e., snails) to lakes if the inhibitory effects from predatory fish are minor. |
| 资助项目 | National Natural Science Foundation of China[31870345] ; National Natural Science Foundation of China[31670368] |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000547960400001 |
| 出版者 | WILEY |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/15448]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Cao, Yu |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Wuhan Bot Garden, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhi, Yongwei,Liu, Yang,Li, Wei,et al. Responses of four submerged macrophytes to freshwater snail density (Radix swinhoei) under clear-water conditions: A mesocosm study[J]. ECOLOGY AND EVOLUTION,2020:10. |
| APA | Zhi, Yongwei,Liu, Yang,Li, Wei,&Cao, Yu.(2020).Responses of four submerged macrophytes to freshwater snail density (Radix swinhoei) under clear-water conditions: A mesocosm study.ECOLOGY AND EVOLUTION,10. |
| MLA | Zhi, Yongwei,et al."Responses of four submerged macrophytes to freshwater snail density (Radix swinhoei) under clear-water conditions: A mesocosm study".ECOLOGY AND EVOLUTION (2020):10. |
入库方式： OAI收割
来源：武汉植物园
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