Red Book of vascular plants along oil pipelines in Yaroslavl Region
E.A. Snegin, A.S. Barkhatov
Section: Population ecology
On the basis of morphometric, phenetic and molecular genetic methods, the population structure of the Pelophylax
ridibundus inhabiting the urbanized environment of Belgorod and its environs (Russia) was studied. The obtained results
confirmed the previously stated assumptions, according to which under the conditions of anthropogenic load the
color morph “striata” dominates (the proportion of individuals on impact territories was 70 to 93%). In relatively pure
biotopes, the color morph “maculate” prevailed (58–67%). The morphometric characteristics revealed a significant differentiation
of populations, caused by heterogeneity in the urban environment. For most morphometric indices, ANOVA
showed significant differences between groups (p < 0.05), which is probably a consequence of the heterogeneity of the
urban environment, especially in terms of contamination and food supply. But the index of genetic differentiation (Fst)
at allozyme loci averaged 0.264, and the level of gene flow between populations (Nm) ranged from 0.107 to 32 individuals
per generation. This indicates an obvious panmixia among the populations of P. ridibundus in the study area. Occasionally
nonspecific allozyme loci were noted, indicating the hybrid origin of the individuals (hybrids between P. ridibundus and
P. lessonae). The high of genetic diversity indices (He = 0.394±0.061, I = 0.629±0.100) and the low inbreeding values in
populations (IF = -0.112±0.075) indicate an increased viability of the amphibian groups studied in the study area, which
is a consequence of the adaptations of populations of P. ridibundus to inhabitation in urban conditions.
ISSN 1995-4301
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