abstract |
For many
years, research on the species composition of small
mammals and monitoring of their abundance on the
basis of Donetsk biostation (Zmiyiv district Kharkiv
region) have been conducted by students of Kharkov
University during summer practice and by employees
of the Kharkiv Regional Sanitary-Epidemiological
Station. Despite the large amount of accumulated
data, recent research did not cover the whole range
of habitats typical for this area and, accordingly,
modern ideas about the small mammals of these places
are extremely incomplete. During 2017–2018, 10 types
of habitats were investigated including different
types of oak forests, meadows, forest edges, and
agricultural lands. Subsequently, 9 species of mouse-like
rodents and 3 species of insectivores were recorded,
among which Sylvaemus tauricus, Myodes glareolus,
Apodemus agrarius, and S. uralensis
dominated. Using the method of trapping by vertical
cylinders, the species Neomys fodiens was
first recorded for the studied territory and Terricola
subterraneus, which has not happened here for
the past 10 years. It is worth noting that the T.
subterraneus avoided getting into the traps
of Hero, which were repeatedly placed near its colonies.
Sylvaemus uralensis was noted only in floodplain
biotopes and did not occur in the oak forests. For
some species, in particular, the Myodes glareolus
and Sorex araneus, their migration to wetter
habitats is indicated in the summer. The largest
species of small mammals is noted on the meadows
surrounded by the oak forests, if they have not
been systematically disposed of. In the summer,
the largest share of caught individuals was recorded
in agrocenoses, in particular, especially in crops
of early grain crops. A rather low number of caught
specimens is noted on the edges of the oak forests,
which border on the floodplain meadows — there are
mainly two types of mouse — Sylvaemus tauricus
and S. sylvaticus. Results suggest a significant
decline in the abundance of small mammals in 2018
compared to previous year, which was manifested
by the complete lack of caught individuals in the
spring and a slight increase in numbers in the second
half of 2018.
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