Regulation of population numbers in the Rana arvalis frog according to the results of long-term observations on the same population

@article{Lyapkov2006RegulationOP,
  title={Regulation of population numbers in the Rana arvalis frog according to the results of long-term observations on the same population},
  author={S. M. Lyapkov and Vladimir G. Cherdantsev and Elena M Cherdantseva},
  journal={Entomological Review},
  year={2006},
  volume={86},
  pages={S226-S239}
}
An analysis of the results of long-term stationary studies (1987–1996) on a Rana arvalis population showed that the mean body length and reproductive parameters of females increased with age. Significant interannual changes in body length and egg size (but not in fecundity and reproductive effort) were also accounted for by conditions of the warm season preceding the breeding season. The dependence of egg diameter and reproductive effort on the female body length weakened with age, and only the… CONTINUE READING