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首页> 外文期刊>Biology Bulletin >The Influence of Anthropogenic Factors on Reproduction of Rana temporaria and Rana arvalis
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The Influence of Anthropogenic Factors on Reproduction of Rana temporaria and Rana arvalis

机译：人为因素对林蛙和林蛙繁殖的影响

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摘要

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.
机译：莫斯科市产卵水体的研究表明，与郊区人口相比，普通蛙（蛙）和沼蛙（蛙）的城市人口少，它们的个体过着隐蔽的生活方式。与郊区人口的同一指标相比，莫斯科市若干人口中女性的繁殖力的记录增加可能伴随着卵直径的增加或保持。在研究期间，雌性产生许多小卵的种群死亡。最富裕的人口是市区的褐蛙种群，其雌性产卵量各异。我们认为这些离合器的形成是对冲策略的一种体现，可以弥补不利和不稳定环境条件下的死亡率。

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