Effects of simulated herbivory and resource availability on the invasive plant, Alternanthera philoxeroides in different habitats
文献类型：期刊论文
| 作者 | Sun, Yan1,2; Ding, Jianqing1; Rena, Mingxun1 |
| 刊名 | BIOLOGICAL CONTROL
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 48期号:3页码:287-293 |
| 关键词 | Alligator weed Alternanthera philoxeroides Tolerance Compensatory response Simulated herbivory Fertilization Habitat |
| ISSN号 | 1049-9644 |
| DOI | 10.1016/j.biocontrol.2008.12.002 |
| 英文摘要 | In biological control programs, the insect natural enemy's ability to suppress the plant invader may be affected by abiotic factors, such as resource availability, that can influence plant growth and reproduction. Understanding plant tolerance to herbivory under different environmental conditions will help to improve biocontrol efficacy. The invasive alligator weed (Alternanthera philoxeroides) has been successfully controlled by natural enemies in many aquatic habitats but not in terrestrial environments worldwide. This study examined the effects of different levels of simulated leaf herbivory on the growth of alligator weed at two levels of fertilization and three levels of soil moisture (aquatic, semi-aquatic, and terrestrial habitats). Increasing levels of simulated (manual) defoliation generally caused decreases in total biomass in all habitats. However, the plant appeared to respond differently to high levels of herbivory in the three habitats. Terrestrial plants showed the highest below-above ground mass ratio (R/S), indicating the plant is more tolerant to herbivory in terrestrial habitats than in aquatic habitats. The unfertilized treatment exhibited greater tolerance than the fertilized treatment in the terrestrial habitat at the first stage of this experiment (day 15), but fertilizer appears not to have influenced tolerance at the middle and last stages of the experiment. No such difference was found in semi-aquatic and aquatic habitats. These findings suggest that plant tolerance is affected by habitats and soil nutrients and this relationship could influence the biological control outcome. Plant compensatory response to herbivory under different environmental conditions should, therefore, be carefully considered when planning to use biological control in management programs against invasive plants. (C) 2008 Elsevier Inc. All rights reserved. |
| 资助项目 | Chinese Academy of Sciences ; National Science Foundation of China[30871650] |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Entomology |
| 语种 | 英语 |
| WOS记录号 | WOS:000263739100011 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1052]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Ding, Jianqing |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Wuhun Bot Inst, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Yan,Ding, Jianqing,Rena, Mingxun. Effects of simulated herbivory and resource availability on the invasive plant, Alternanthera philoxeroides in different habitats[J]. BIOLOGICAL CONTROL,2009,48(3):287-293. |
| APA | Sun, Yan,Ding, Jianqing,&Rena, Mingxun.(2009).Effects of simulated herbivory and resource availability on the invasive plant, Alternanthera philoxeroides in different habitats.BIOLOGICAL CONTROL,48(3),287-293. |
| MLA | Sun, Yan,et al."Effects of simulated herbivory and resource availability on the invasive plant, Alternanthera philoxeroides in different habitats".BIOLOGICAL CONTROL 48.3(2009):287-293. |
入库方式： OAI收割
来源：武汉植物园
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