Abstract

The results of bird counts averaged over the first half of summer (May 16 to July 15) from 1880 to 2019 have been analyzed to identify the spatial-typological structure and organization of the ornithocomplexes of Northern Eurasia (with interruptions, and mainly since 1960). A total of 354 researchers participated in the collection of material (over 110 years). Data processing is carried out using multivariate statistics methods, including cluster analysis and linear qualitative approximation of communication matrices. The main territorial trends in bird assemblages and environmental factors correlating with them are identified, and the relationship between the spatial variability of ornithocomplexes and the heterogeneity of habitats is assessed. The fractality of the spatial differentiation of the bird assemblageis shown.

中文翻译：

---

欧亚大陆北部夏季鸟类群落的生态和地理组织与结构

摘要

对 1880 年至 2019 年夏季上半月（5 月 16 日至 7 月 15 日）平均鸟类数量的结果进行了分析，以确定欧亚大陆北部鸟类群的空间类型结构和组织（有中断，主要自 1960 年以来） . 共有 354 名研究人员参与了材料收集（超过 110 年）。数据处理采用多元统计方法进行，包括聚类分析和通信矩阵的线性定性逼近。确定了鸟类组合的主要地域趋势和与之相关的环境因素，并评估了鸟类复合体的空间变异性和栖息地的异质性之间的关系。显示了鸟类组合空间分化的分形性。