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英国Impatiens glandulifera种群的快速形态变化

A L Wyatt¹, H S Pardoe², C J Cleal^3,4

¹Geobiology and Geochemistry Division, Cardiff School of Earth and Environmental Sciences, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK. wyatta@cardiff.ac.uk.

Scientific reports

|August 20, 2024

概括

喜马拉雅香 (Impatiens glandulifera) 自从它被引入英国群岛以来已经演变. 这种入侵性植物的叶子尺寸缩小,口腔密度较低,花朵更长,影响其竞争能力.

科学领域:

生态生态学生态生态学
进化生物学进化生物学
植物学植物学

背景情况:

乳腺 (Impatiens glandulifera) 或喜马拉雅是一种在英国群岛的高度入侵性植物.
由于其具有竞争性,它对原生植物群落产生了重大影响.
很少有研究研究了入侵性植物种群在引入后的形态变化.

研究的目的:

调查Impatiens glandulifera自从它被引入英国群岛以来的形态演变.
量化植物关键特征随时间变化的量化.

主要方法:

分析了在1865年至2017年期间收集的315个Impatiens glandulifera的草本标本.
测量形态特征,包括叶子大小,花朵长度和口腔特征.

主要成果:

从1865年到2017年,总体叶子大小的显著减少被观察到.
在同一时期,口腔密度显著下降.
发现花的整体长度显著增加.

结论:

这项研究表明,在入侵性喜马拉雅香中,有可测量的进化变化.
这些形态变化可能会影响植物的竞争力和分散能力.
监测这种进化变化对于管理入侵物种至关重要.

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