湖北农业科学 ›› 2022, Vol. 61 ›› Issue (20): 105-110.doi: 10.14088/j.cnki.issn0439-8114.2022.20.020

• 畜牧·兽医 • 上一篇    下一篇

张广才岭东部两种姬鼠两性异形比较研究

李殿伟, 孟繁星, 刘佳慧, 刘阳, 单洪佳, 金志民, 杨彬彬   

  1. 牡丹江师范学院生命科学与技术学院,黑龙江 牡丹江 157011
  • 收稿日期:2022-01-17 出版日期:2022-10-25 发布日期:2022-11-23
  • 作者简介:李殿伟(1979-),男,黑龙江穆棱人,副教授,博士,主要从事野生动物保护与利用研究,(电话)13804808045(电子信箱)swxldw@126.com;共同第一作者,孟繁星(1996-),女,黑龙江牡丹江人,硕士研究生,主要从事野生动物生态学研究,(电话)15246312055(电子信箱)2746090608@qq.com。
  • 基金资助:
    黑龙江省自然科学基金项目(SS2021C006); 黑龙江省高校基本科研业务费科研项目(1451PT007); 牡丹江师范学院国家级课题培育项目(GP2021006)

Comparative study of two sexual dimorphisms of two species of Apodemus in the east of Zhangguangcailing

LI Dian-wei, MENG Fan-xing, LIU Jia-hui, LIU Yang, SHAN Hong-jia, JIN Zhi-min, YANG Bin-bin   

  1. College of Life Science and Technology, Mudanjiang Normal University, Mudanjiang 157011, Heilongjiang, China
  • Received:2022-01-17 Online:2022-10-25 Published:2022-11-23

摘要: 为了解朝鲜姬鼠(Apodemus peninsulae)和黑线姬鼠(Apodemus agrarius)的两性异形特征,在黑龙江省张广才岭东部农林交错区,采用铗日法采集同域分布的两个优势物种朝鲜姬鼠和黑线姬鼠,分别测量其外部形态和内脏特征等形态指标,并对其两性异形比较研究。结果表明,两种姬鼠的外部形态和内脏特征的两性异形差异不显著,均属于雌雄同形,表现出雄性的主要形态特征略大于雌性的,朝鲜姬鼠雄性前足长、心脏重、脾脏重均大于雌性的;黑线姬鼠雄性体长、后足长、体重、心脏重、肝脏重均大于雌性的。朝鲜姬鼠和黑线姬鼠的雄雌体长比值分别为1.021和1.043,体长两性异形程度指数分别为0.021和0.041;雄雌体重比值分别为1.065和1.161,两性异形程度指数分别为0.061和0.139。两种姬鼠两性的部分局部形态特征均与其体长以及体重呈显著正相关。

关键词: 两性异形, 朝鲜姬鼠(Apodemus peninsulae), 黑线姬鼠(Apodemus agrarius), 形态特征, 同域分布

Abstract: In order to understand the sexual heteromorphism of Apodemus peninsulae and Apodemus agrarius, the two dominant species of Apodemus peninsulae and Apodemus agrarius, which were distributed in the same region, were collected in the agricultural and forestry zone in the east of Zhangguangcailing in Heilongjiang Province. Apodemus agrarius, measured its external morphology and visceral characteristics and other morphological indicators, and compared their male and female dimorphisms. The results showed that the external morphology and visceral characteristics of the two species of Apodemus were not significantly different between the sexes, and they all belonged to hermaphroditism. The main morphological characteristics of males were slightly larger than those of females. The length of the forefoot, the weight of the heart and the weight of the spleen of the male Apodemus peninsulae were larger than those of the female. The male and female body length ratios of Apodemus peninsulae and Apodemus agrarius were 1.021 and 1.043, respectively. The body length hermaphrodite degree indexes were 0.021 and 0.041; the male and female body weight ratios were 1.065 and 1.161, and the hermaphrodite degree indexes were 0.061 and 0.139, respectively. Part of the local morphological characteristics of the two species of Apodemus were significantly positively correlated with their body length and weight.

Key words: sexual dimorphism, Apodemus peninsulae, Apodemus agrarius, morphological characteristics, sympatric distribution

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