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Сравнительная характеристика динамики численности красной и красно-серой полевок в верховье Колымы и Северном Приохотье

7 октября 2024 / 19:22

DOI: 10.38006/00187-838-4.2024.159.160

А. Н. Лазуткин - Институт биологических проблем Севера ДВО РАН, Магадан

A comparative analysis of the simultaneous long-term dynamics of the number of two species of voles – redbacked and gray red-backed voles, in three geographically separated regions of the North-East of Siberia was carried out. No similarity in population changes in both species in the regions of the Kolyma and the Northern Priokhotye, which are 400 km apart, is shown. In two districts of the Northern Priokhotye, located 250 km apart, from each other, changes in the number of red-backed voles turned out to be strictly synchronous, with high reliable connection. The dynamics of the number of gray red-backed voles coincided in half of the observation period and differed in another part of the period. It was concluded that there is no single rhythm of fluctuations in the number of studied species within the entire region. Nevertheless, in smaller areas, within the same geographical zone, the populations of individual species of voles can have a unified population dynamics.