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首页> 外文期刊>Ecological Applications >Relatedness and environment affect traits associated with invasive and noninvasive introduced commelinaceae
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Relatedness and environment affect traits associated with invasive and noninvasive introduced commelinaceae

机译：亲缘关系和环境影响与入侵和无入侵的introduced科相关的性状

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摘要

Understanding the traits of invasive species may improve the ability to predict, prevent, and manage invasions. I compared morphological and performance traits of five congeneric pairs of invasive and noninvasive Commelinaceae across a factorial experiment using a range of water and nutrient availabilities. Invasive species had greater fecundity and vegetative reproduction than their noninvasive relatives. The invasive species also had higher relative growth rates, greater specific leaf area, and more plastic root-to-shoot ratios than noninvasive species. However, whether a trait was associated with invasiveness often depended on both environment and relatedness. Invasives had greater sexual and vegetative reproduction, higher specific leaf area, and greater relative growth rates than noninvasive congeners, but only in some environments. Differences between invasive and noninvasive taxa were greatest at high nutrient availabilities. These results. suggest that studies of invasive species' traits must incorporate information on conditions under which the trait was measured. In addition, incorporating information on relatedness improved our ability to detect associations between species traits, such as specific leaf area and relative growth rate, and invasiveness, suggesting that such information may be required for a complete understanding of what makes a species invasive.
机译：了解入侵物种的特征可能会提高预测，预防和管理入侵的能力。我在一系列使用水和养分利用度的因子分析实验中，比较了五个入侵对和非入侵对Com科的同类对的形态和性能特征。入侵物种比非​​入侵物种具有更大的繁殖力和营养繁殖能力。与非侵入性物种相比，侵入性物种还具有更高的相对生长速率，更大的比叶面积和更大的根系/茎高比。但是，一个特征是否与侵袭性相关通常取决于环境和关联性。入侵者比非入侵者具有更大的有性和无性繁殖，更高的比叶面积和更高的相对生长率，但仅限于某些环境。在高养分利用率下，侵入性和非侵入性分类单元之间的差异最大。这些结果。建议对入侵物种的性状进行研究时必须纳入有关测量该性状的条件的信息。此外，整合有关性的信息可以提高我们检测物种特征（例如特定叶面积和相对生长率）与入侵性之间的关联的能力，这表明可能需要此类信息来全面了解使物种入侵的原因。

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