Systematic randomised sampling along three landscape transects in the Netherlands reveals the geographically structured variation in Rubus scrubs

IF 0.8 4区生物学 Q4 ECOLOGY

Phytocoenologia Pub Date : 2014-03-01 DOI:10.1127/0340-269X/2013/0043-0564

R. Haveman, I. D. Ronde, R. Bijlsma, J. Schaminée

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引用次数: 4

Abstract

Rubus scrubs belong to the least known and understood vegetation types in Europe. At least in part this is due to the complicated taxonomy and species richness of the main genus in these scrubs. In this study, we explored the regional diversity of Rubus scrubs in the Netherlands. In order to get a clear picture on their species composition free from personal preferences, we used a systematic-randomised sampling scheme to collect data in the three main Rubus regions in the Netherlands along three 100 km long transects. In 185 releves we recorded 67 known (and three unknown) Rubus species. The releves could be assigned to seven units described in the Dutch national vegetation classification: the Rubetum grati, Rubetum silvatici, Lonicero-Rubion silvatici, Dicrano-Juniperetum, Pruno-Rubetum vestiti, Pruno-Rubion radulae, and the Basal Community Rubus armeniacus. From our study we conclude that the regional variation in Rubus scrubs is substantial, and that only a part of this variation was described in the Dutch national vegetation overview. Especially within the Rubetum silvatici and the Pruno-Rubion radulae regionally distributed types can be distinguished, which seem to be confined to old landscapes, whereas younger landscapes only harbour common types, or are even devoid of bramble scrubs. The density of releves made in this study emphasize the importance of bramble scrubs in the landscape of north-western Europe, and we advocate more awareness of the value represented by bramble dominated communities. The vast number of Rubus species, many of which having a (very) restricted distribution area, complicate the classification of these scrubs, and can easily lead to the description of countless vegetation types with only a regional distribution. On the other hand, such regionally distributed communities can be of importance for nature conservation because they can harbour rare species, and they add to the regional identity and ?-diversity, and therefore should be recognised at some level.

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沿着荷兰三个景观样带进行系统随机抽样，揭示了灌木的地理结构变化

灌木属欧洲最不为人所知和了解的植被类型。至少在某种程度上，这是由于这些灌丛中主要属的复杂分类和物种丰富。在这项研究中，我们探讨了荷兰灌木的区域多样性。为了在不受个人偏好影响的情况下清楚地了解它们的物种组成，我们采用了系统随机抽样方案，沿着三个100公里长的样带在荷兰的三个主要Rubus区域收集数据。在185个级别中，我们记录了67种已知(和3种未知)的红蝽。这些植被可划分为荷兰国家植被分类中描述的7个单位:灌木树、森林树、Lonicero-Rubion silvatici、Dicrano-Juniperetum、森林树、森林树和基础群落。从我们的研究中，我们得出结论，红毛灌木的区域差异是实质性的，只有一部分这种差异在荷兰国家植被概况中被描述。特别是在森林丛中和森林丛中，可以区分出区域性分布的类型，这些类型似乎局限于古老的景观，而年轻的景观中只有常见的类型，甚至没有荆棘灌木。本研究中绘制的地图密度强调了荆棘灌木在欧洲西北部景观中的重要性，我们提倡更多地认识到以荆棘为主的社区所代表的价值。其中许多种的分布区域(非常)有限，这使得这些灌丛植物的分类变得复杂，并且很容易导致对无数植被类型的描述仅具有区域分布。另一方面，这种区域分布的群落对自然保护具有重要意义，因为它们可以庇护稀有物种，增加了区域特征和多样性，因此应该在某种程度上得到认可。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Phytocoenologia 生物-植物科学

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Phytocoenologia is an international, peer-reviewed journal of plant community ecology. It is devoted to vegetation survey and classification at any organizational and spatial scale and without restriction to certain methodological approaches. The journal publishes original papers that develop new vegetation typologies as well as applied studies that use such typologies, for example, in vegetation mapping, ecosystem modelling, nature conservation, land use management or monitoring. Particularly encouraged are methodological studies that design and compare tools for vegetation classification and mapping, such as algorithms, databases and nomenclatural principles. Papers dealing with conceptual and theoretical bases of vegetation survey and classification are also welcome. While large-scale studies are preferred, regional studies will be considered when filling important knowledge gaps or presenting new methods.