Deficiency in African plant distribution data - missing pieces of the puzzle
Deficiency in African plant distribution data - missing pieces of the puzzle
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DOI：
10.1111/j.1095-8339.2006.00494.x
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发表时间：
2006-03
影响因子：
2.4
通讯作者：
Wolfgang Küper;J. Sommer;J. Lovett;W. Barthlott
中科院分区：
文献类型：
--
作者：
Wolfgang Küper;J. Sommer;J. Lovett;W. Barthlott
生物多样性在空间上的分布是不均匀的，关于其空间格局的信息也是如此。关于物种出现情况的信息分布不均是养护生物多样性的一个重要障碍。基于185 427收集记录的5873种植物在撒哈拉以南非洲地区，我们分析了分布数据的可用性，适合于基于GIS的植物多样性格局的制图在一个度的分辨率。使用生物气候模型GARP，每个物种的分布范围进行了建模。为了确定数据不足的地区，比较了记录和模拟的多样性模式。只有少数几个著名的植物多样性中心有相对较多的数据收集记录。对于几个地区的采集记录很少，如几内亚山地森林，西北部的刚果低地森林，南部艾伯丁裂谷山地森林，该模型预测的物种丰富度远高于目前记录。在许多缺乏数据的地区，科学研究的困难条件似乎限制了几十年的收集活动。只有战略性的实地收集才能填补这些空白。造成数据不足的另一个原因是，收集和数字化的数据不符合超区域尺度基于地理信息系统工作的质量要求。特别是，记录部分物种分布的区域数据库很少相互连接。因此，《全球植物保护战略》面临的一个挑战是建立国际合作结构和技术标准，以便分析跨越政治边界的地理模式。© 2006伦敦林奈学会，林奈学会植物学杂志，2006，150，355-368。
Biodiversity is spatially unevenly distributed and so is the information on its spatial patterns. This uneven distribution of information on species occurrences is an important impediment to the conservation of biodiversity. Based on 185 427 collection records of 5873 plant species in sub-Saharan Africa, we analyse the availability of distribution data suitable for the GIS-based mapping of plant diversity patterns at a one-degree resolution. Using the bioclimatic model GARP, distribution ranges for each species were modelled. In order to identify data-deficient areas, the documented and modelled diversity patterns were compared. Only for a few, well-known centres of plant diversity are there comparatively many data collection records available. For several of the areas with very few collection records, such as the Guinean montane forests, the north-western Congolian lowland forests, and the southern Albertine Rift montane forests, the model predicts a species richness much higher than currently documented. In many of the data deficient areas, difficult conditions for scientific research appear to have limited collection activities for decades. Only strategic field collections can fill these gaps. Another cause of data deficiency is that data collected and digitized do not match the quality requirements for GIS-based work at the super-regional scale. In particular, regional databases documenting partial ranges of species are rarely connected. One challenge for the Global Strategy for Plant Conservation is therefore to establish international collaborative structures and technical standards that will allow analysis of biogeographical patterns across political boundaries. © 2006 The Linnean Society of London, Botanical Journal of the Linnean Society, 2006, 150, 355–368.