No abstract

The paper considers dynamics of phenological phenomena of animals in the south taiga Central Forest biosphere reserve. As initial data we used materials of meteorological and phenological observations made under the program of maintaining the nature chronicle on the basis of the meteorological post Forest reserve in the Roshydromet network. Of the 46 meteorological series only ten (22%) show significant long-term changes over the period 19902019: an increase in the average annual air temperature, temperature in May, August, September and November; a decrease of total precipitation in September and an increase in December; a positive displacement of occurrence dates of maximum temperature less than 0C and the final formation of ice on the pond, a negative shift of the phenological summer beginning dates. The authors prove that there has been a shift of time when winter comes or an increase in the duration of the frost-free period on the reserve territory over a 30-year period. For the spring phenodates of the considered animal species, there is a negative long-term linear trend in the variability of phenological phenomena towards an earlier start of events. Such signs as the first meeting of the small tortoiseshell, the first bites of the biting mosquito, the first appearance of the grass frog and the viviparous lizard are recommended to be used as indicators of the climate change. The shift of insect and amphibian phenodates is associated with a shortening of the cold season in the reserve climate system. A significant change of lizards phenological phenomenon time is caused by abiotic as well as by biotic (forage) factors.