Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12874 |
Bottom-up vs. top-down effects on terrestrial insect herbivores: a meta-analysis | |
Vidal, Mayra C.; Murphy, Shannon M. | |
2018 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2018 |
卷号 | 21期号:1页码:138-150 |
文章类型 | Review |
语种 | 英语 |
国家 | USA |
英文摘要 | Primary consumers are under strong selection from resource ('bottom-up') and consumer ('top-down') controls, but the relative importance of these selective forces is unknown. We performed a meta-analysis to compare the strength of top-down and bottom-up forces on consumer fitness, considering multiple predictors that can modulate these effects: diet breadth, feeding guild, habitat/environment, type of bottom-up effects, type of top-down effects and how consumer fitness effects are measured. We focused our analyses on the most diverse group of primary consumers, herbivorous insects, and found that in general top-down forces were stronger than bottom-up forces. Notably, chewing, sucking and gall-making herbivores were more affected by top-down than bottom-up forces, top-down forces were stronger than bottom-up in both natural and controlled (cultivated) environments, and parasitoids and predators had equally strong top-down effects on insect herbivores. Future studies should broaden the scope of focal consumers, particularly in understudied terrestrial systems, guilds, taxonomic groups and top-down controls (e.g. pathogens), and test for more complex indirect community interactions. Our results demonstrate the surprising strength of forces exerted by natural enemies on herbivorous insects, and thus the necessity of using a tri-trophic approach when studying insect-plant interactions. |
英文关键词 | Bottom-up fitness herbivorous insects host-plant quality meta-analysis natural enemies parasitoid predator top-down |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418133700014 |
WOS关键词 | ENEMY-FREE-SPACE ; TRADE-OFFS ; TROPHIC CASCADES ; HOST PLANTS ; ARTHROPOD COMMUNITIES ; INTRAGUILD PREDATION ; BIOLOGICAL-CONTROL ; MANDUCA-SEXTA ; FOOD-WEB ; RESPONSES |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
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/31268 |
专题 | 资源环境科学 |
作者单位 | Univ Denver, Dept Biol Sci, Denver, CO 80208 USA |
推荐引用方式 GB/T 7714 | Vidal, Mayra C.,Murphy, Shannon M.. Bottom-up vs. top-down effects on terrestrial insect herbivores: a meta-analysis[J]. ECOLOGY LETTERS,2018,21(1):138-150. |
APA | Vidal, Mayra C.,&Murphy, Shannon M..(2018).Bottom-up vs. top-down effects on terrestrial insect herbivores: a meta-analysis.ECOLOGY LETTERS,21(1),138-150. |
MLA | Vidal, Mayra C.,et al."Bottom-up vs. top-down effects on terrestrial insect herbivores: a meta-analysis".ECOLOGY LETTERS 21.1(2018):138-150. |
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