Abstract

Ruderal plant species typically occur and prevail in frequently disturbed areas especially in sites with pronounced direct or indirect human activity. In Greece ruderal taxa (both exclusive and non-exclusive) account for 23.9% of all recorded plant taxa. This study presents an analysis of the ruderal plant diversity patterns in the 13 floristic regions of Greece and different aspects of ruderal diversity related to alien taxa and to taxa of conservation interest. Although many ruderal plant taxa are common and widespread, their contribution to the diversity of each floristic region ranges between 27.8% in the North Central and 41.6% in the Cyclades region. Spatial distribution analysis revealed that the ruderal flora presents higher frequency of occurrence in major urban areas, in coastal and low to medium elevation mainland and island areas. The total number of ruderal taxa per floristic region is strongly correlated with the total number of taxa per region. The richness in exclusive ruderal taxa is highly correlated with surface area proportions of settlements and other built-up areas, as well as with artificial land, wetlands, sparsely vegetated land and shrublands. Ruderals account for a greater proportion of taxa in species-poor regions than in species-rich ones. Patterns of ruderal taxa diversity proved to be rather complicated and different spatial scales must be considered if ruderal biodiversity of the cultural landscapes in Greece is to be preserved.

中文翻译：

---

希腊野果植物多样性的分布模式

摘要

陆生植物通常在经常受到干扰的地区发生并盛行，特别是在人类活动直接或间接发生的地点。在希腊，实类群（排他性和非排他性）占所有记录的植物类群的23.9％。这项研究提出了对希腊13个植物区系中的eral类植物多样性模式的分析，以及与外来生物群和具有保护意义的类群有关的类生物多样性的不同方面。尽管许多仪植物类群是常见且广泛的，但它们对每个植物区系多样性的贡献在北部中部为27.8％，在基克拉泽斯地区为41.6％。空间分布分析表明，在沿海，中低海拔大陆和岛屿地区的主要城市地区，类植物的发生频率较高。每个植物区系的类群总数与每个区系的总数密切相关。专属类群的丰富程度与定居点和其他建成区的表面积比例以及人工土地，湿地，植被稀疏的土地和灌木丛高度相关。在物种贫乏的地区，比起物种丰富的地区，Ruderal在类群中所占的比例更大。事实证明，要保留希腊文化景观的标本生物多样性，标本生物多样性的模式非常复杂，必须考虑不同的空间尺度。专属类群的丰富程度与定居点和其他建成区的表面积比例以及人工土地，湿地，植被稀疏的土地和灌木丛高度相关。在物种贫乏的地区，比起物种丰富的地区，Ruderal在类群中所占的比例更大。事实证明，要保留希腊文化景观的标本生物多样性，标本生物多样性的模式非常复杂，必须考虑不同的空间尺度。专属类群的丰富程度与定居点和其他建成区的表面积比例以及人工土地，湿地，植被稀疏的土地和灌木丛高度相关。在物种贫乏的地区，比起物种丰富的地区，Ruderal在类群中所占的比例更大。事实证明，要保留希腊文化景观的标本生物多样性，标本生物多样性的模式非常复杂，必须考虑不同的空间尺度。