Abstract

The results of our study of the invasive species Hordeum jubatum L. in various ecological–geographical conditions of the Southern Urals are presented. The 32 coenopopulations (CPs) of the species in the Bashkir Cis-Ural and Trans-Ural regions in Orenburg and Chelyabinsk oblasts were investigated. The populations studied were revealed to belong to several types of vegetation communities, namely, the Polygono avicularis–Hordeetum jubati association (Abramova and Golovanov, 2016), the derivate community Hordeum jubatum [Scorzonero–Juncetea gerardii], the derivate community Hordeum jubatum [Cynosurion], and the derivate community Hordeum jubatum [Artemisietea vulgaris/Stellarietea mediae]. Our study of key morphometric parameters has shown that the undisturbed CP Zamorskoye-1 (Orenburg oblast) was in the lead, where the growth conditions were favorable for the species. The most variable morphometric parameters among the populations are as follows: the number of generative shoots, the leaf length, and the quantity of seeds. In the 17 prospering CPs, the prevalence of individuals of the highest class was noted; they were located in the undisturbed or weakly disturbed habitats. One CP was attributed to equilibrium ones, and the others were depressive. By the results of our cluster analysis, three CPs located in different geographic zones and having the maximum or minimum values in the majority of their morphometric parameters are most different from the total data set. Further monitoring of the centers of invasion and distribution of Hordeum jubatum species across the territory of the Southern Urals is necessary.

中文翻译：

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南乌拉尔外来入侵种大麦（禾本科，Liliopsida）的生物学和生态学的某些特征

摘要

介绍了我们在南部乌拉尔地区各种生态地理条件下对入侵种大麦（Hordeum jubatum L.）的研究结果。调查了奥伦堡和车里雅宾斯克州的巴什基尔顺乌拉尔地区和反乌拉尔地区的32种共存种群。所研究的种群被发现属于几种植被群落，即：Polygono avicularis–Jordatitum jubati协会（Abramova和Golovanov，2016），衍生的大麦[ Scorzonero–Juncetea gerardii ]，衍生的大麦[ Cynosurion]。 ]，以及派生部落大麦（Hordeum jubatum） [普通青蒿/恒星草]。我们对关键形态参数的研究表明，不受干扰的CP Zamorskoye-1（奥伦堡州）处于领先地位，其生长条件对该物种有利。群体中形态参数变化最大的是：芽的数量，叶长和种子的数量。在17个繁荣的CP中，注意到了最高阶层的人的普遍性。它们位于未受干扰或微扰的栖息地。一个CP归因于平衡的CP，而另一个则是抑郁的。根据我们的聚类分析结果，位于不同地理区域并在大多数形态计量参数中具有最大值或最小值的三个CP与总数据集最大不同。横跨南乌拉尔地区的大麦种是必要的。