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- Title
The influence of anthropogenic factors on reproduction of Rana temporaria and Rana arvalis.
- Authors
Severtsova, E.; Kormilitsin, A.; Severtsov, A.
- Abstract
Studies of spawning water bodies in the city of Moscow have shown that the urban populations of common ( Rana temporaria) and moor ( R. arvalis) frogs are small compared with suburban populations, and their individuals lead a hidden mode of life. The recorded increase in the fecundity of females from several populations of the city of Moscow may be accompanied by an increase or the preservation of the diameter of eggs as compared with the same indicator for suburban populations. The populations in which the females produced many small eggs died out during the study period. The most prosperous populations are urban populations of brown frogs whose females spawned eggs of various sizes. We consider the formation of these clutches as a manifestation of the bet-hedging strategy compensating for mortality in adverse and unstable environmental conditions.
- Subjects
MOSCOW (Russia); RANA temporaria; SPAWNING; MOOR frog; BODIES of water; AMPHIBIAN mortality; REPRODUCTION
- Publication
Biology Bulletin, 2016, Vol 43, Issue 7, p654
- ISSN
1062-3590
- Publication type
Article
- DOI
10.1134/S1062359016070165