Macroinvertebrate along Vestari-Jökulsá Iceland

1. Background: The impact of climate change on the longitudinal distribution of macroinvertebrates in glacier‐fed streams has been the subject of increasing awareness in recent years. Despite prior intensive research on the longitudinal distribution of macroinvertebrates in glacier-fed ecosystems, long-term studies in glacier-fed rivers of arctic regions, that investigate the temporal change of macroinvertebrate communities during periods of rapid climate change, are largely missing, although climate change is expected to cause large shifts in arctic ecosystems. Especially in the arctic rivers of Iceland, where the aquatic macroinvertebrate fauna is very poor in species, and glacier-fed rivers have the lowest density and diversity of benthic invertebrates of all river groups, the response of benthic macroinvertebrates to future environmental change may differ distinctly from those in low-latitude climate regions. Here we present the results of a pilot study investigating the changes of ...1. 研究背景：气候变化对冰川补给溪流中大型无脊椎动物（macroinvertebrates）的纵向分布的影响，近年来已成为学界日益关注的研究课题。尽管此前针对冰川补给生态系统中大型无脊椎动物的纵向分布已开展了大量深入研究，但在北极地区的冰川补给河流中，针对气候快速变化时期大型无脊椎动物群落时间动态的长期研究仍较为匮乏，尽管气候变化预计将对北极生态系统造成显著的生态格局转变。尤其在冰岛的北极河流中，其水生大型无脊椎动物区系的物种丰富度极低，且冰川补给河流的底栖无脊椎动物密度与多样性在所有河流类型中处于最低水平，因此底栖大型无脊椎动物（benthic macroinvertebrates）对未来环境变化的响应，可能与低纬度气候区的同类群存在显著差异。本研究介绍了一项试点研究的成果，该研究旨在探讨……