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Clonal plants in disturbed mountain forests: Heterogeneity enhances ramet integration
Perspectives in Plant Ecology, Evolution and Systematics ( IF 3.5 ) Pub Date : 2020-05-13 , DOI: 10.1016/j.ppees.2020.125533
Scott B. Franklin , Paweł Olejniczak , Ewa Samulak , Mária Šibíková , Tomáš Bacigál , Juraj Nechaj , Jozef Šibík

Clonal plants confer a range of ecologically important traits related to local heterogeneity (e.g., foraging and integration). Disturbances generally impact heterogeneity at a variety of scales, but there is a paucity of research linking disturbance, heterogeneity, and clonal plant response. Further, there is a growing need to understand how different plants respond to changing disturbance regimes if stewards want to predict ecosystem response and successfully manage public lands. Thus, we examined clonal plant response to disturbance in the Tatra Mountains (Western Carpathians, Slovakia and Poland) at both the community and population levels. We collected 30 plots (10 m × 10 m) of data from four disturbance site types (DR = windthrow and not salvaged; DS = windthrow salvaged; NF = Forest without gap; NG = forest with canopy gap) in the Western Carpathians. Collected data included cover of all species, heterogeneity metrics, soil temperature 10 cm beneath the surface and clonal connectedness data (through dye experiments on selected species). Windthrow (DR) sites that were not salvaged had the greatest heterogeneity while forest sites with full canopy cover (NF) had the least. We found distinct differences in community composition and structure among the four treatments; however, floristic clonal dominance and the type of clonal growth organ did not change but made up over 90% of cover throughout. Clonal integration was related to disturbance and heterogeneity for Calamagrostis villosa and Rubus idaeus; R. idaeus had greater distances among ramets in the more heterogenous windthrown sites. Clonal plant growth was also related to compositional richness for C. villosa, having greater numbers of ramets under higher diversity pressure. These data suggest the dominance of clonal plants in the understory of mountain spruce forests in the Tatras are responding to changes in heterogeneity through growth and integration but in a species-specific manner.



中文翻译:

受干扰的山区森林中的克隆植物:异质性增强了分株整合

克隆植物赋予了一系列与当地异质性相关的重要生态特征(例如,觅食和整合)。干扰通常会在各种规模上影响异质性,但是缺乏将干扰,异质性和克隆植物反应联系起来的研究。此外,越来越需要了解如果管理员想预测生态系统响应并成功管理公共土地,则不同的植物如何响应不断变化的干扰状况。因此,我们研究了塔特拉山(西喀尔巴阡山脉,斯洛伐克和波兰)在社区和人口水平上对干扰产生的克隆植物响应。我们从四种扰动点类型(DR =被风吹而未被打捞; DS =被风吹地被抢救; NF =没有间隙的森林;以及无障碍的森林)收集了30个样地(10 m×10 m)数据。NG =西喀尔巴阡山脉的带林冠间隙的森林)。收集的数据包括所有物种的覆盖率,异质性指标,地表以下10 cm的土壤温度和克隆连通性数据(通过对选定物种进行的染料实验)。未打捞的Windthrow(DR)地点的异质性最大,而具有完全树冠覆盖(NF)的森林地点的异质性最小。我们发现这四种治疗方法在群落组成和结构上存在明显差异。但是,植物区系的优势度和克隆生长器官的类型没有改变,但覆盖了整个植物区系的90%以上。克隆整合与干扰和异质性有关 表层以下10 cm的土壤温度和克隆连接性数据(通过对选定物种进行的染料实验)。未打捞的Windthrow(DR)地点的异质性最大,而具有完全树冠覆盖(NF)的森林地点的异质性最小。我们发现这四种治疗方法在群落组成和结构上存在明显差异。但是,植物区系的优势度和克隆生长器官的类型没有改变,但覆盖了整个植物区系的90%以上。克隆整合与干扰和异质性有关 表层以下10 cm的土壤温度和克隆连接性数据(通过对选定物种进行的染料实验)。未打捞的Windthrow(DR)地点的异质性最大,而具有完全树冠覆盖(NF)的森林地点的异质性最小。我们发现这四种治疗方法在群落组成和结构上存在明显差异。但是,植物区系的优势度和克隆生长器官的类型没有改变,但覆盖了整个植物区系的90%以上。克隆整合与干扰和异质性有关 植物区系的优势度和克隆生长器官的类型没有变化,但覆盖了整个植物区系的90%以上。克隆整合与干扰和异质性有关 植物区系的优势度和克隆生长器官的类型没有变化,但覆盖了整个植物区系的90%以上。克隆整合与干扰和异质性有关ama蒲悬钩子; R.树莓曾在多个异构windthrown网站分株之间更大的距离。克隆植物的生长也与C. villosa的成分丰富有关,在较高的多样性压力下分株的数量更多。这些数据表明,在塔特拉山的云杉林林下,克隆植物的优势正在通过生长和整合以物种特异性的方式响应异质性的变化。

更新日期:2020-05-13
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