Abstract— The results of bank vole population censuses taken in the Ilmen reserve in 1982 to 2018 were analyzed in relation to changes in climatic parameters over the period from 1928 to 2017. The total amounts of precipitation in December to March and April to May and monthly average temperatures in May and April did not change significantly during the above period, and no significant dependence of bank vole population dynamics on these parameters was revealed. Changes in the amplitude and frequency of population waves in this species may be due to increase in the length of frost-free period observed in the reserve during the past decades.

中文翻译：

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伊尔门自然保护区银行田鼠的长期种群动态

摘 要：对伊尔门保护区 1982-2018 年田鼠种群普查结果与 1928-2017 年气候参数变化进行了分析。 5 月和 4 月的平均气温在上述时期没有显着变化，并且没有揭示银行田鼠种群动态对这些参数的显着依赖性。该物种种群波幅和频率的变化可能是由于过去几十年在保护区观察到的无霜期长度的增加。