Arid
DOI10.1111/1365-2656.12614
Precipitation alters interactions in a grassland ecological community
Deguines, Nicolas1,2; Brashares, Justin S.2; Prugh, Laura R.1
通讯作者Deguines, Nicolas
来源期刊JOURNAL OF ANIMAL ECOLOGY
ISSN0021-8790
EISSN1365-2656
出版年2017
卷号86期号:2页码:262-272
英文摘要

1. Climate change is transforming precipitation regimes world-wide. Changes in precipitation regimes are known to have powerful effects on plant productivity, but the consequences of these shifts for the dynamics of ecological communities are poorly understood. This knowledge gap hinders our ability to anticipate and mitigate the impacts of climate change on biodiversity.


2. Precipitation may affect fauna through direct effects on physiology, behaviour or demography, through plant-mediated indirect effects, or by modifying interactions among species. In this paper, we examined the response of a semi-arid ecological community to a fivefold change in precipitation over 7 years.


3. We examined the effects of precipitation on the dynamics of a grassland ecosystem in central California from 2007 to 2013. We conducted vegetation surveys, pitfall trapping of invertebrates, visual surveys of lizards and capture-mark-recapture surveys of rodents on 30 plots each year. We used structural equation modelling to evaluate the direct, indirect and modifying effects of precipitation on plants, ants, beetles, orthopterans, kangaroo rats, ground squirrels and lizards.


4. We found pervasive effects of precipitation on the ecological community. Although precipitation increased plant biomass, direct effects on fauna were often stronger than plantmediated effects. In addition, precipitation altered the sign or strength of consumer-resource and facilitative interactions among the faunal community such that negative or neutral interactions became positive or vice versa with increasing precipitation.


5. These findings indicate that precipitation influences ecological communities in multiple ways beyond its recognized effects on primary productivity. Stochastic variation in precipitation may weaken the average strength of biotic interactions over time, thereby increasing ecosystem stability and resilience to climate change.


英文关键词arthropods conditional outcomes Dipodomys ingens dryland ecological non-monotonicity food web path analysis rain San Joaquin antelope squirrel
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000397968700010
WOS关键词CLIMATE-CHANGE ; SPECIES INTERACTIONS ; WATER AVAILABILITY ; POPULATIONS ; ECOSYSTEMS ; IMPACTS ; DESERT ; SOIL ; CONSERVATION ; BIODIVERSITY
WOS类目Ecology ; Zoology
WOS研究方向Environmental Sciences & Ecology ; Zoology
来源机构University of California, Berkeley
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200002
作者单位1.Univ Washington, Sch Environm & Forest Sci, Winkenwerder Hall,W Stevens Way NE, Seattle, WA 98195 USA;
2.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Mulford Hall,Hilgard Way, Berkeley, CA 94720 USA
推荐引用方式
GB/T 7714
Deguines, Nicolas,Brashares, Justin S.,Prugh, Laura R.. Precipitation alters interactions in a grassland ecological community[J]. University of California, Berkeley,2017,86(2):262-272.
APA Deguines, Nicolas,Brashares, Justin S.,&Prugh, Laura R..(2017).Precipitation alters interactions in a grassland ecological community.JOURNAL OF ANIMAL ECOLOGY,86(2),262-272.
MLA Deguines, Nicolas,et al."Precipitation alters interactions in a grassland ecological community".JOURNAL OF ANIMAL ECOLOGY 86.2(2017):262-272.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Deguines, Nicolas]的文章
[Brashares, Justin S.]的文章
[Prugh, Laura R.]的文章
百度学术
百度学术中相似的文章
[Deguines, Nicolas]的文章
[Brashares, Justin S.]的文章
[Prugh, Laura R.]的文章
必应学术
必应学术中相似的文章
[Deguines, Nicolas]的文章
[Brashares, Justin S.]的文章
[Prugh, Laura R.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。