Change in dominance determines herbivore effects on plant biodiversity
文献类型：期刊论文
| 作者 | Koerner, Sally E.1; Smith, Melinda D.2,3; Burkepile, Deron E.4; Hanan, Niall P.5,6; Avolio, Meghan L.7; Collins, Scott L.8; Knapp, Alan K.2,3; Lemoine, Nathan P.2,3; Forrestel, Elisabeth J.9; Eby, Stephanie10 |
| 刊名 | NATURE ECOLOGY & EVOLUTION
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 2期号:12页码:1925-1932 |
| ISSN号 | 2397-334X |
| DOI | 10.1038/s41559-018-0696-y |
| 通讯作者 | Koerner, Sally E.(Sally.Koerner@uncg.edu) |
| 英文摘要 | Herbivores alter plant biodiversity (species richness) in many of the world's ecosystems, but the magnitude and the direction of herbivore effects on biodiversity vary widely within and among ecosystems. One current theory predicts that herbivores enhance plant biodiversity at high productivity but have the opposite effect at low productivity. Yet, empirical support for the importance of site productivity as a mediator of these herbivore impacts is equivocal. Here, we synthesize data from 252 large-herbivore exclusion studies, spanning a 20-fold range in site productivity, to test an alternative hypothesis-that herbivore-induced changes in the competitive environment determine the response of plant biodiversity to herbivory irrespective of productivity. Under this hypothesis, when herbivores reduce the abundance (biomass, cover) of dominant species (for example, because the dominant plant is palatable), additional resources become available to support new species, thereby increasing biodiversity. By contrast, if herbivores promote high dominance by increasing the abundance of herbivory-resistant, unpalatable species, then resource availability for other species decreases reducing biodiversity. We show that herbivore-induced change in dominance, independent of site productivity or precipitation (a proxy for productivity), is the best predictor of herbivore effects on biodiversity in grassland and savannah sites. Given that most herbaceous ecosystems are dominated by one or a few species, altering the competitive environment via herbivores or by other means may be an effective strategy for conserving biodiversity in grasslands and savannahs globally. |
| WOS关键词 | DIVERSITY DEPENDS ; RESOURCE CONTROL ; COMMUNITIES ; PRODUCTIVITY ; VEGETATION ; RICHNESS ; CONSUMER ; ECOLOGY ; IMPACT |
| 资助项目 | USDA AFRI Foundational Conference Grant[2018-67013-27400] ; Kenya Long-term Exclosure Experiment-NFS[DEB 12-56004] ; Jornada-NSF[DEB-0618210] ; Konza Prairie and Kruger National Park-NSF[DEB 0841917] ; Kruger National Park-NSF[DEB 1712786] |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000450904100020 |
| 资助机构 | USDA AFRI Foundational Conference Grant ; Kenya Long-term Exclosure Experiment-NFS ; Jornada-NSF ; Konza Prairie and Kruger National Park-NSF ; Kruger National Park-NSF |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/51444]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Koerner, Sally E. |
| 作者单位 | 1.Univ N Carolina, Dept Biol, Greensboro, NC 27412 USA 2.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA 3.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA 4.Univ Calif Santa Barbara, Dept Ecol Evolut & Marine Biol, Santa Barbara, CA 93106 USA 5.New Mexico State Univ, Jornada LTER Program, Las Cruces, NM 88003 USA 6.New Mexico State Univ, Plant & Environm Sci Dept, Las Cruces, NM 88003 USA 7.Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA 8.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA 9.Univ Calif Davis, Dept Viticulture & Enol, Davis, CA 95616 USA 10.Northeastern Univ, Dept Marine & Environm Sci, Boston, MA 02115 USA |
| 推荐引用方式 GB/T 7714 | Koerner, Sally E.,Smith, Melinda D.,Burkepile, Deron E.,et al. Change in dominance determines herbivore effects on plant biodiversity[J]. NATURE ECOLOGY & EVOLUTION,2018,2(12):1925-1932. |
| APA | Koerner, Sally E..,Smith, Melinda D..,Burkepile, Deron E..,Hanan, Niall P..,Avolio, Meghan L..,...&Zelikova, Tamara Jane.(2018).Change in dominance determines herbivore effects on plant biodiversity.NATURE ECOLOGY & EVOLUTION,2(12),1925-1932. |
| MLA | Koerner, Sally E.,et al."Change in dominance determines herbivore effects on plant biodiversity".NATURE ECOLOGY & EVOLUTION 2.12(2018):1925-1932. |
入库方式： OAI收割
来源：地理科学与资源研究所
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