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首页> 外文期刊>Biology Bulletin >The Reproductive Ecology of the Bank Vole Myodes (Clethrionomys) glareolus Schreb.in North Periphery of Its Areal: Ⅰ.Sex Cycles, Course, Dates, and Intensive Reproduction
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The Reproductive Ecology of the Bank Vole Myodes (Clethrionomys) glareolus Schreb.in North Periphery of Its Areal: Ⅰ.Sex Cycles, Course, Dates, and Intensive Reproduction

机译：银行vole肌的生殖生态（Clethrionomys）Glareolus Schreb.In其区域的北方周边：Ⅰ.Se.Se.Sex循环，课程，日期和密集繁殖

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摘要

A characterization of long-term station and field studies (1958-2017) on the tiaga in northwestern Russia is given for the population-ecology features of reproduction of the bank vole, including those associated with its habitat at the northern borders of its distribution: reproductive cycles and the timing, course, and intensity of reproduction. According to the dates, including from the results of histological examination of the gonads, under the conditions of the northern periphery of its range, the bank vole has a long breeding period from April to September with the very intensive participation of young fertile voles, especially early spring-summer births. The male reproductive cycle has a stage of passive spermatogenesis with a rapid increase in the epithelium and the appearance of spermatocytes of both orders. From April, active spermatogenesis occurs, during which the epithelium of germinal becomes layered and mature spermatozoa appear in the tubules and appendages of the testis. Ovulation in females, apparently, is spontaneous, as is evidenced by cases of the presence of a false corpus luteum in adult (overwintered) females, as well as in newcomers, the reproduction of which is interrupted by seasonal depression. The average duration of the sexual cycle is 5-6 days; the maximum is about two weeks. In this article a function of population autoregulation, which depends on the initial population density of the adaptive shift involved in the reproduction of age-related generations of animals, is revealed.
机译：在俄罗斯西北部的TIAGA上的长期站点和田间研究（1958-2017）的表征是对银行群体的繁殖的人口生态特征，包括与其分销北部边界有关的人：生殖循环和时序，过程和再现强度。根据该日期，包括从Gonads的组织学检查结果，在其范围北方的条件下，银行牧口在4月至9月的繁殖期与年轻肥沃群体非常密集的参与，特别是早春夏季诞生。雄性生殖循环具有被动精子发生的阶段，并且上皮的快速增加以及两个订单的精子细胞的外观。从4月开始，发生活性精子发生，在此期间发芽的上皮变为分层，并且成熟的精子出现在睾丸的小管和阑尾。雌性排卵，显然是自发的，如成人（过度烧结的）女性在成人（过次）的女性中，以及新人，其繁殖是由季节性抑郁症中断的。性循环的平均持续时间为5-6天;最大是大约两周。在本文中，揭示了群体自动调节的函数，这取决于涉及年龄相关的动物的繁殖中涉及的自适应转变的初始群体密度。

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  • 来源
    《Biology Bulletin》 |2020年第5期|535-547|共13页
  • 作者

    Ivanter E. V.;

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    Petrozavodsk State Univ Petrozavodsk 185910 Russia;

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