Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aau9460 |
Herbivores as drivers of negative density dependence in tropical forest saplings | |
Forrister, Dale L.1; Endara, Maria-Jose1,2; Younkin, Gordon C.1; Coley, Phyllis D.1,3; Kursar, Thomas A.1,3 | |
2019-03-15 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6432页码:1213-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Ecuador; Panama |
英文摘要 | Ecological theory predicts that the high local diversity observed in tropical forests is maintained by negative density-dependent interactions within and between closely related plant species. By using long-term data on tree growth and survival for coexisting Inga (Fabaceae, Mimosoideae) congeners, we tested two mechanisms thought to underlie negative density dependence (NDD): competition for resources and attack by herbivores. We quantified the similarity of neighbors in terms of key ecological traits that mediate these interactions, as well as the similarity of herbivore communities. We show that phytochemical similarity and shared herbivore communities are associated with decreased growth and survival at the sapling stage, a key bottleneck in the life cycle of tropical trees. None of the traits associated with resource acquisition affect plant performance, indicating that competition between neighbors may not shape local tree diversity. These results suggest that herbivore pressure is the primary mechanism driving NDD at the sapling stage. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461329000048 |
WOS关键词 | MASS-SPECTROMETRY DATA ; SPECIES COEXISTENCE ; FUNCTIONAL TRAITS ; LEAF DEVELOPMENT ; PLANT DIVERSITY ; MECHANISMS ; MORTALITY ; GENUS ; COMMUNITIES ; SIMILARITY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200969 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Utah, Sch Biol Sci, Salt Lake City, UT 84112 USA; 2.Univ Tecnol Indoamer, Ctr Invest Biodiversidad & Cambio Climat BioCamb, Fac Ciencias Medio Ambiente, Quito, Ecuador; 3.Smithsonian Trop Res Inst, Balboa, Ancon, Panama |
推荐引用方式 GB/T 7714 | Forrister, Dale L.,Endara, Maria-Jose,Younkin, Gordon C.,et al. Herbivores as drivers of negative density dependence in tropical forest saplings[J]. SCIENCE,2019,363(6432):1213-+. |
APA | Forrister, Dale L.,Endara, Maria-Jose,Younkin, Gordon C.,Coley, Phyllis D.,&Kursar, Thomas A..(2019).Herbivores as drivers of negative density dependence in tropical forest saplings.SCIENCE,363(6432),1213-+. |
MLA | Forrister, Dale L.,et al."Herbivores as drivers of negative density dependence in tropical forest saplings".SCIENCE 363.6432(2019):1213-+. |
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