Spider foraging strategy affects trophic cascades under natural and drought conditions
文献类型：期刊论文
| 作者 | Yang, Xiaodong ; Chen, Jin
|
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015 |
| 卷号 | 5页码:- |
| 关键词 | GRASSLAND ECOSYSTEM FUNCTION LITTER DECOMPOSITION FOREST-FLOOR FUNCTIONAL DIVERSITY CLIMATE-CHANGE SOIL BIODIVERSITY COLLEMBOLA COMMUNITY ALTERS |
| ISSN号 | 2045-2322 |
| 中文摘要 | Spiders can cause trophic cascades affecting litter decomposition rates. However, it remains unclear how spiders with different foraging strategies influence faunal communities, or present cascading effects on decomposition. Furthermore, increased dry periods predicted in future climates will likely have important consequences for trophic interactions in detritus-based food webs. We investigated independent and interactive effects of spider predation and drought on litter decomposition in a tropical forest floor. We manipulated densities of dominant spiders with actively hunting or sit-and-wait foraging strategies in microcosms which mimicked the tropical-forest floor. We found a positive trophic cascade on litter decomposition was triggered by actively hunting spiders under ambient rainfall, but sit-and-wait spiders did not cause this. The drought treatment reversed the effect of actively hunting spiders on litter decomposition. Under drought conditions, we observed negative trophic cascade effects on litter decomposition in all three spider treatments. Thus, reduced rainfall can alter predator-induced indirect effects on lower trophic levels and ecosystem processes, and is an example of how such changes may alter trophic cascades in detritus-based webs of tropical forests. |
| 学科主题 | Science & Technology - Other Topics |
| 原文出处 | 10.1038/srep12396 |
| 语种 | 英语 |
| 公开日期 | 2015-09-18 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/9248]  |
| 专题 | 西双版纳热带植物园_土壤生态组 西双版纳热带植物园_动植物关系组 |
| 通讯作者 | Yang, Xiaodong |
| 推荐引用方式 GB/T 7714 | Yang, Xiaodong,Chen, Jin. Spider foraging strategy affects trophic cascades under natural and drought conditions[J]. SCIENTIFIC REPORTS,2015,5:-. |
| APA | Yang, Xiaodong,&Chen, Jin.(2015).Spider foraging strategy affects trophic cascades under natural and drought conditions.SCIENTIFIC REPORTS,5,-. |
| MLA | Yang, Xiaodong,et al."Spider foraging strategy affects trophic cascades under natural and drought conditions".SCIENTIFIC REPORTS 5(2015):-. |
入库方式： OAI收割
来源：西双版纳热带植物园
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