Abstract

The regional diversity and characteristics of rheophilic macrozoobenthos communities in the western Tien Shan are described based on 370 original quantitative samples from lotic waters in the western Tien Shan (Kyrgyzstan). We have determined altitudinal differences in the composition and structure of the communities in three zones ranging from 1000 to 3700 m above sea level. Twenty-three types of revealed communities were assigned to the previously identified five classes: rhithral (hard-bottom substrates with a rapid flow), crenal (mosaic substrates of small springs and brooks), pelal (soft-bottom substrates), ripal (mosaic substrates of the water edge), and ephemeral (temporary biotopes). It is shown that the communities of the low mountains in Tien Shan are structurally similar to the communities of other low mountains in southern Palearctic regions (Caucasus and Balkans), the communities of the middle mountains are similar to those of the low Arctic (Kola Peninsula and Yamal), and the communities of the high mountains are similar to those of the high Arctic (Svalbard). Thus, the effects of altitudinal and latitudinal zonation on mountain lotic communities in the Palearctic are generally similar and mainly mediated by summer water temperature.

中文翻译：

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天山西部的嗜红巨嘴兽社区

摘要

基于天山西部（吉尔吉斯斯坦）抽水水域的370份原始定量样本，描述了天山西部嗜水型大型动物的群落多样性和特征。我们已经确定了海拔1000至3700 m的三个区域中群落组成和结构的海拔差异。二十三个类型的揭示群落被分配到先前确定的五类中：鼻状（快速流动的硬底基质），颅骨（小泉水和小溪的马赛克基质），骨（软底基质），口岸（马赛克基质）水边缘的底物）和短暂的（临时生物群落）。结果表明，天山的低山群落在结构上与南部古太平洋地区（高加索和巴尔干半岛）的其他低山群落相似，中山的群落与北极低层（科拉半岛）相似。和亚马尔），高山社区与北极高地（斯瓦尔巴特群岛）相似。因此，海拔和纬度分区对古北美洲山区抽水群落的影响大致相似，并且主要由夏季水温介导。