Global distribution of earthworm diversity
Global distribution of earthworm diversity
复制标题
DOI：
10.1126/science.aax4851
复制
发表时间：
2019-10-25
期刊：
影响因子：
56.9
通讯作者：
Eisenhauer, Nico
中科院分区：
文献类型：
--
作者：
Phillips, Helen R. P.;Guerra, Carlos A.;Eisenhauer, Nico
包括蚯蚓在内的土壤生物是陆地生态系统的重要组成部分。然而，人们对它们的多样性、分布和影响它们的威胁知之甚少。我们汇编了57个国家6928个地点的蚯蚓群落样本的全球数据集，作为预测蚯蚓多样性、丰度和生物量模式的基础。我们发现，当地物种的丰富度和丰富度通常在高纬度达到顶峰，表现出与地上生物相反的模式。然而，热带地区物种的高度差异性可能导致整个热带地区的多样性比其他地区更高。研究发现，气候变量在塑造蚯蚓群落方面比土壤特性或栖息地覆盖更重要。这些发现表明，气候变化可能会对蚯蚓群落及其提供的功能产生严重影响。
Soil organisms, including earthworms, are a key component of terrestrial ecosystems. However, little is known about their diversity, their distribution, and the threats affecting them. We compiled a global dataset of sampled earthworm communities from 6928 sites in 57 countries as a basis for predicting patterns in earthworm diversity, abundance, and biomass. We found that local species richness and abundance typically peaked at higher latitudes, displaying patterns opposite to those observed in aboveground organisms. However, high species dissimilarity across tropical locations may cause diversity across the entirety of the tropics to be higher than elsewhere. Climate variables were found to be more important in shaping earthworm communities than soil properties or habitat cover. These findings suggest that climate change may have serious implications for earthworm communities and for the functions they provide.