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Copulatory behavior of semifree-ranging Amur tigers (Panthera tigris altaica)

QIAO Zhenglei ZHANG Honghai WANG Xiaoming   

  1. College of Life Science,Q ufu Normal University,Qufu 273165 ,China)
  • Online:2008-10-09 Published:2008-07-07

半散养状态下东北虎交配行为的观察

乔征磊 张洪海 王晓明   

  1. 曲阜师范大学生命科学学院,曲阜 273165

Abstract: We used behavioral sampling to investigate mating behavior and copulatory patterns of 7 semi-free-ranging Amur tigers (Panthera tigris altaica;4 males,3 females)housed in a 2 ha enclosure at the Taishan Amur Tiger Park. We observed no copulatory locks during 22 days of observation;males usually ejaculated following a single intromission after several thrusts. Approximately 74% of ejaculations within a 1-hour period were repeated ejaculations. Amur tigers had a copulatory pattern with no lock,thrusting,multiple intromission,and a single ejaculation,consistent with No 11 in Dewsbury’s copulatory-patterned system. Females averaged 28 ±3 sexual solicitations/day,lasting 20.0 ± 1.2 seconds. Males averaged 14 ± 1 mounts of females/ day. The mean duration of thrusting was 20.9 ± 0.5 seconds,and the mean mating duration was 45.2 ±1.3 seconds.

Key words: Amur tiger (Panthera tigris altaica) Copulatory pattern Mating behavior

摘要: 在2006 ~2007 年,采用行为取样法对泰山东北虎园7 只(3 雌,4 雄) 半散养状态下(园区占地面积20 000 m2 )的东北虎的交配活动进行了为期22 d 的观察,旨在了解无人干扰下东北虎的交配过程及其交配模式。结果显示:东北虎在交配过程中无锁结现象,雄虎通常在一次爬跨多次抽动后即出现射精。在1 h 内出现2次射精次数的比例占总射精次数的74.0% 。东北虎的交配模式属于Dewsbury 分类系统中的第11 种,即无锁结、有抽动、单次插入、多次射精。交配期内,每只雌虎平均日邀配28 ± 3 次,平均邀配持续时间为20.0 ± 1.2 s;每只雄虎平均日爬跨14 ± 1 次。平均抽动持续时间为20.9 ± 0.5 s,平均交配持续时间为45.2 ± 1.3 s。

关键词: 东北虎 交配行为 交配模式