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Variation in Features of the Cranium of the Musk Deer Moschus moschiferus L. in Different Phases of the Population Cycle

机译:麝香鹿Moschus Moschiferus L.在人口周期的不同阶段中的特征变异

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摘要

The variation in four characters (three craniometrical and one nonmetric with supplemental bones) was investigated in 105 craniums of musk deer in different phases (depression and growth) of the population cycle from the East Sayan mountains. The duration of the cycle was 50 years, which corresponds to ten generations of animals. The results obtained show the multidirectional relation of skull sizes (craniometric variation) with phases in the population number in animals of different sexes. The variability of nonmetric characteristics of the skull is characterized by the greatest frequency of manifestation and the maximum quantity of additional bones during the phase of population depression in animals of both sexes, a gradual decrease in their quantity during the growth phase, and then complete loss of supplemental bones when there is an increase in population numbers. The revealed phene of the skull is a key cranial variation and may be used as a way for monitoring natural populations of rare and disappearing subspecies of musk deer.
机译:在来自东门山的不同阶段(抑郁和生长)的不同阶段(抑郁和生长)中,研究了四个角色(三个颅体和骨骼)的变化,从东门山的不同阶段(抑郁和生长)。循环的持续时间为50年,这对应于十几代动物。获得的结果显示了不同性别动物中群体数量中的颅尺(颅尺度变化)的多向关系。颅骨的非微粒的变化特征在于,最大的表现频率最大,并且在两性动物的动物抑郁症期间的额外骨骼的最大数量,在生长期期间逐渐减少,然后完成损失当人口数量增加时,补充骨骼。展示的颅骨是一个关键的颅骨变化,可以用作监测稀有和消失的麝鹿群的自然群体的一种方式。

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  • 来源
    《Biology Bulletin》 |2020年第5期|497-500|共4页
  • 作者

    Prikhodko V. I.;

  • 作者单位

    Russian Acad Sci Severtsov Inst Ecol & Evolut Moscow 119071 Russia;

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  • 正文语种 eng
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