几种田鼠交配行为的比较

Comparison of Copulatory Behavior in Several Cricetulus Rodents

田鼠属啮齿动物的交配行为格局多变、其多样性的起源和功能与种群的社会组织和婚配制度有关。１９９８年６月～８月．在曲阜师范大学生物系动物实验室对东方田鼠的交配行为进行了研究．结果表明．东方田鼠的交配模式属于＃１１模式。即无限制、抽动、多次插入和多次射精．但有时射精前无多次插入；射精系列间射精频率（ＥＦ）的平均值具有显著或极显著的降低；东方田鼠与其他８种田鼠属啮齿动物第１和第２射精系列的插入次数（ＩＦ）和每次插入的抽动次数（Ｔ／Ｉ）之间表现出显著的负相关（ｒ１＝－０．９６，ｒ２＝一０．９１）。

The patterns of copulatory behavior of different species of cricetulus rodents are extremely diverse.The origins and functions of this diversity are relative to the social organization. During June toOctober in 1998. the copulatory behavior of reed voles (Microtus fortis) was studied in Animal Laboratoryof Department of Biology. Qufu Normal University. The result showed that reed vole displayed patterns#l 1 (no lock. thrusting. multiple intromissions and multiple ejaculation, but sometimes multiple intromissions need not precede multiple ejaculation). The means of ejaculatory frequency (EF) between ejaculatory series decrease significantly or extremely significantly. The mean numbers of intromissionspreceding ejaculation (IF) and thrust per intromissions (T/I) in the first and the second ejaculatory seriesbetween reed voles and other & species microtine rodent are negative correlation (r1= -0. 96.r2 = - 0. 91 ).