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Intraspecific variation in functional strategy and leaf shape of Campanula elatinoides reveals adaptation to climate
Flora ( IF 1.9 ) Pub Date : 2020-07-01 , DOI: 10.1016/j.flora.2020.151605
Luca Giupponi

Abstract Recent research has shown that the intraspecific variability of plant competitor–stress tolerator–ruderal (CSR) functional strategy can represent an adaptive response to climate. This research analysed the CSR strategy of Campanula elatinoides Moretti and the shape of its leaf blades at an intraspecific level. Results were related to the environmental characteristics of the various sampling areas in order to highlight the adaptation of this species to the environment and to climate in particular. CSR strategy analysis was evaluated considering seven sampling areas located in the Italian Alps where this species grows. The analysis of leaf blade shape was carried out on the same leaves used for the analysis of the CSR strategy, while the environmental characteristics of the sampling areas were evaluated by synecological analysis. Campanula elatinoides presents more stress tolerant and competitive individuals (C = 46.6 %, S = 31.4 %, R = 22.0 %) with cordate leaf blades wider at the base in the sampling area at the lowest elevation where it grows with more thermophilic, heliophilous and xerophilous species. These characteristics represent adaptations of this species to the climatic conditions of that area. This research has shown that the intraspecific variability of CSR strategy could be greater than previously thought and that functional strategy analysis can be useful to understand the adaptation of plants to climate.

中文翻译:

Campanula elatinoides 功能策略和叶形的种内变异揭示了对气候的适应

摘要 最近的研究表明,植物竞争者-胁迫耐受者-粗野 (CSR) 功能策略的种内变异性可以代表对气候的适应性响应。本研究在种内水平分析了风铃草的 CSR 策略及其叶片的形状。结果与各个采样区的环境特征相关,以突出该物种对环境和特别是气候的适应性。考虑到位于该物种生长的意大利阿尔卑斯山的七个采样区域,对 CSR 战略分析进行了评估。对用于 CSR 策略分析的相同叶片进行叶片形状分析,同时通过共生态分析评估采样区域的环境特征。Campanula elatinoides 具有更强的抗压能力和竞争能力(C = 46.6 %,S = 31.4 %,R = 22.0 %),在最低海拔的采样区域的基部具有更宽的心形叶片,在那里它以更多的嗜热、嗜热和耐旱种。这些特征代表了该物种对该地区气候条件的适应。这项研究表明,CSR 策略的种内可变性可能比以前认为的要大,功能策略分析可用于了解植物对气候的适应。嗜日菌和嗜旱菌种。这些特征代表了该物种对该地区气候条件的适应。这项研究表明,CSR 策略的种内可变性可能比以前认为的要大,功能策略分析可用于了解植物对气候的适应。嗜日菌和嗜旱菌种。这些特征代表了该物种对该地区气候条件的适应。这项研究表明,CSR 策略的种内可变性可能比以前认为的要大,功能策略分析可用于了解植物对气候的适应。
更新日期:2020-07-01
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