Global analysis of ecological niche conservation and niche shift in exotic populations of monkeyflowers (Mimulus guttatus, M. luteus) and their hybrid (M. × robertsii)

IF 1.7 4区生物学 Q2 PLANT SCIENCES

Plant Ecology & Diversity Pub Date : 2020-03-03 DOI:10.1080/17550874.2020.1750721

D. Da Re, Angel P. Olivares, William A. Smith, M. Vallejo‐Marín

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引用次数: 9

Abstract

ABSTRACT Background Hybridisation associated with biological invasions may generate new phenotypic combinations, allowing hybrids to occupy new ecological niches. To date, few studies have assessed niche shifts associated with hybridisation in recently introduced populations while simultaneously characterising the niche of parental species in both native and introduced ranges. Aims Here, we compared (1) the ecological niche of a novel hybrid monkeyflower, M. × robertsii, with the niches of its two parental taxa (M. guttatus, M. luteus), and (2) the ecological niches of native (Americas) and introduced parental populations (Europe and New Zealand). Methods We assembled >13,000 geo-referenced occurrence records and eight environmental variables and conducted an ecological niche model analysis using maximum entropy, principal component and niche dynamics analysis. Results We found no evidence of niche shift in the hybrid, which may result in potential competition between parental and derived taxa in the introduced range. M. guttatus showed niche conservatism in introduced populations in Europe, but a niche shift in New Zealand, while M. luteus showed a niche shift in Europe. Conclusions The comparison of native and non-native populations of parental taxa, suggests that whether invasions result in niche shifts or not depends on both taxon and geographic region, highlighting the idiosyncratic nature of biological invasions.

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猴花（Mimulus guttatus，M.luteus）及其杂交种（M.×robertsii）外来种群生态位保护和生态位转移的全球分析

摘要背景与生物入侵相关的杂交可能产生新的表型组合，使杂交种占据新的生态位。到目前为止，很少有研究评估了与最近引入的种群中杂交相关的生态位变化，同时描述了本地和引入范围中亲本物种的生态位。在这里，我们比较了（1）一种新的杂交猴花M.×robertsii的生态位及其两个亲本类群（M.guttatus，M.luteus）的生态位，以及（2）本地（美洲）和引入亲本种群（欧洲和新西兰）的生态生态位。方法我们收集了13000多个地理参考发生记录和8个环境变量，并利用最大熵、主成分和生态位动力学分析进行了生态位模型分析。结果我们没有发现杂交种生态位发生变化的证据，这可能导致引入范围内亲本和衍生类群之间的潜在竞争。guttatus在欧洲的引入种群中表现出生态位保守主义，但在新西兰表现出了生态位转变，而木犀在欧洲表现出了一种生态位转变。结论亲本类群的本地和非本地种群的比较表明，入侵是否导致生态位变化取决于分类单元和地理区域，突出了生物入侵的特殊性。

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来源期刊

Plant Ecology & Diversity PLANT SCIENCES-

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Plant Ecology and Diversity is an international journal for communicating results and novel ideas in plant science, in print and on-line, six times a year. All areas of plant biology relating to ecology, evolution and diversity are of interest, including those which explicitly deal with today''s highly topical themes, such as biodiversity, conservation and global change. We consider submissions that address fundamental questions which are pertinent to contemporary plant science. Articles concerning extreme environments world-wide are particularly welcome. Plant Ecology and Diversity considers for publication original research articles, short communications, reviews, and scientific correspondence that explore thought-provoking ideas. To aid redressing ‘publication bias’ the journal is unique in reporting, in the form of short communications, ‘negative results’ and ‘repeat experiments’ that test ecological theories experimentally, in theoretically flawless and methodologically sound papers. Research reviews and method papers, are also encouraged. Plant Ecology & Diversity publishes high-quality and topical research that demonstrates solid scholarship. As such, the journal does not publish purely descriptive papers. Submissions are required to focus on research topics that are broad in their scope and thus provide new insights and contribute to theory. The original research should address clear hypotheses that test theory or questions and offer new insights on topics of interest to an international readership.