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首页> 外文期刊>Marine ecology progress series >Patterns of distribution of annelids: taxonomic and spatial inconsistencies between two biogeographic provinces and across multiple spatial scales
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Patterns of distribution of annelids: taxonomic and spatial inconsistencies between two biogeographic provinces and across multiple spatial scales

机译：昆虫的分布模式：两个生物地理省之间以及跨多个空间尺度的分类学和空间不一致

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摘要

Issues of scale and taxonomic resolution are of fundamental importance to studies of biodiversity. To aid in measuring distributions cost-effectively, it has been widely proposed that different levels of taxonomic resolution should be used, depending on the scale of the ecological process or environmental impact being investigated. The effect of taxonomic resolution on patterns of difference in natural spatial variation and abundance of annelids associated with reefs of Sabellaria alveolata was therefore investigated in 2 different biogeographic provinces (Wales and Portugal) over scales of centimetres to 10s of kilometres to identify generality in patterns over different spatial scales and levels of taxonomic resolution. In Wales, there appeared to be some support for the model, with the amounts of small-scale variability increasing with increasing taxonomic resolution. In Portugal there was, however, no relationship between taxonomic resolution and spatial scale. Spatial patterns of annelids grouped at differing taxonomic levels were not consistent between the 2 biogeographic provinces. Any models proposed to explain variation in these patterns must account for differences in patterns among taxa within biogeographic provinces and for the same taxa between biogeographic provinces. This will make such models much more complex than many that have been traditionally proposed to explain spatial variability at different scales.
机译：规模和生物分类解决问题对生物多样性的研究至关重要。为了帮助经济有效地测量分布，已广泛提出应根据所研究的生态过程的规模或环境影响，使用不同级别的分类学分辨率。因此，在2个不同的生物地理省（威尔士州和葡萄牙），研究了生物分类学分辨率对自然空间变异和与沙棘藻礁相关的象鼻虫数量的差异的影响，其范围从几厘米到十多公里，以识别不同的空间尺度和分类分辨率级别。在威尔士，该模型似乎得到了一些支持，小规模变异的数量随着分类学分辨率的提高而增加。但是，在葡萄牙，分类学分辨率和空间规模之间没有关系。在两个生物地理省份之间，按不同分类级别分组的象鼻虫的空间格局不一致。为解释这些模式的变化而提出的任何模型都必须考虑到生物地理省份内各分类单元之间的模式差异，以及生物地理省份之间同一分类单元的模式差异。这将使这种模型比传统上用来解释不同尺度空间变异性的许多模型更为复杂。

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