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。
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 and1.161,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.
作者
李殿伟
孟繁星
刘佳慧
刘阳
单洪佳
金志民
杨彬彬
LI Dian-wei;MENG Fan-xing;LIU Jia-hui;LIU Yang;SHAN Hong-jia;JIN Zhi-min;YANG Bin-bin(College of Life Science and Technology,Mudanjiang Normal University,Mudanjiang 157011,Heilongjiang,China)
出处
《湖北农业科学》
2022年第20期105-110,187,共7页
Hubei Agricultural Sciences
基金
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)。
