Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ajb2.1126 |
Rapid alignment of functional trait variation with locality across the invaded range of Sahara mustard (Brassica tournefortii) | |
Winkler, Daniel E.1,2; Gremer, Jennifer R.3; Chapin, Kenneth J.4; Kao, Melanie5; Huxman, Travis E.1 | |
通讯作者 | Winkler, Daniel E. |
来源期刊 | AMERICAN JOURNAL OF BOTANY |
ISSN | 0002-9122 |
EISSN | 1537-2197 |
出版年 | 2018 |
卷号 | 105期号:7页码:1188-1197 |
英文摘要 | PREMISE OF STUDY: Mechanisms by which invasive species succeed across multiple novel environmental contexts are poorly understood. Functional traits show promise for identifying such mechanisms, yet we lack knowledge of which functional traits are critical for success and how they vary across invaded ranges and with environmental features. We evaluated the widespread recent invasion of Sahara mustard (Brassica tournefortii) in the southwestern United States to understand the extent of functional trait variation across the invaded range and how such variation is related to spatial and climatic gradients. METHODS: We used a common garden approach, growing two generations of plants in controlled conditions sourced from 10 locations across the invaded range. We measured variation within and among populations in phenological, morphological, and physiological traits, as well as performance. KEY RESULTS: We found nine key traits that varied among populations. These traits were related to phenology and early growth strategies, such as the timing of germination and flowering, as well as relative allocation of biomass to reproduction and individual seed mass. Trait variation was related most strongly to variation in winter precipitation patterns across localities, though variations in temperature and latitude also had significant contributions. CONCLUSIONS: Our results identify key functional traits of this invasive species that showed significant variation among introduced populations across a broad geographic and climatic range. Further, trait variation among populations was strongly related to key climatic variables, which suggests that population divergence in these traits may explain the successful colonization of Sahara mustard across its invaded US range. |
英文关键词 | Brassicaceae Brassica tournefortii common garden desert evolution functional traits greenhouse invasion multiple generations Sahara mustard |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000441289100009 |
WOS关键词 | DESERT WINTER ANNUALS ; PHENOTYPIC PLASTICITY ; INVASIVE PLANT ; NORTH-AMERICA ; SEED-GERMINATION ; BROMUS-TECTORUM ; MOJAVE DESERT ; POPULATION-DYNAMICS ; BIOSPHERE RESERVE ; GENETIC DIVERSITY |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | United States Geological Survey ; University of California, Davis |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207483 |
作者单位 | 1.Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA; 2.US Geol Survey, Southwest Biol Sci Ctr, Moab, UT 84532 USA; 3.Univ Calif Davis, Dept Evolut & Ecol, Davis, CA 95616 USA; 4.Univ Calif Davis, Dept Neurobiol Physiol & Behav, Davis, CA 95616 USA; 5.Univ Calif Irvine, Undergrad Program Publ Hlth, Irvine, CA 92697 USA |
推荐引用方式 GB/T 7714 | Winkler, Daniel E.,Gremer, Jennifer R.,Chapin, Kenneth J.,et al. Rapid alignment of functional trait variation with locality across the invaded range of Sahara mustard (Brassica tournefortii)[J]. United States Geological Survey, University of California, Davis,2018,105(7):1188-1197. |
APA | Winkler, Daniel E.,Gremer, Jennifer R.,Chapin, Kenneth J.,Kao, Melanie,&Huxman, Travis E..(2018).Rapid alignment of functional trait variation with locality across the invaded range of Sahara mustard (Brassica tournefortii).AMERICAN JOURNAL OF BOTANY,105(7),1188-1197. |
MLA | Winkler, Daniel E.,et al."Rapid alignment of functional trait variation with locality across the invaded range of Sahara mustard (Brassica tournefortii)".AMERICAN JOURNAL OF BOTANY 105.7(2018):1188-1197. |
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