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野生黄山短尾猴雄性睾酮的季节性变化

夏东坡 李进华 朱勇 陈燃 孙丙华   

  1. 安徽大学生命科学学院;安徽省生态工程与生物技术重点实验室;安徽省生态经济技术研究中心,合肥 230039
  • 出版日期:2008-10-09 发布日期:2008-07-07

Seasonal variations of testosterone in wild adult male Tibetan macaques (Macaca thibetana)at Huangshan,China

XIA Dongpo LI Jinhua ZHU Yong CHEN Ran SUN Binghua   

  1. School of Life Sci ence,Anhui University ;Anhui Key Laboratory of Eco-engineering and Bio-technique;Anhui Research Center of Eco-economy Technology, Hefei 230039,China
  • Online:2008-10-09 Published:2008-07-07

摘要: 本文研究了黄山短尾猴野生群体雄性睾酮的变化规律。采用放射性免疫分析方法,对黄山短尾猴鱼鳞坑YA2 群成年雄性个体在交配期(2005 年10 月至2006 年1 月;2006 年7 月至9 月)与非交配期(2006 年2 月至6 月)的粪便睾酮水平进行了测定,共采集到5 只雄性个体的新鲜粪便样品426 个。结果表明:在群体水平,黄山短尾猴成年雄性睾酮浓度交配季节(12.283 ± 5.745 ng/ ml)显著高于非交配季节(9.424 ± 4.987 ng / ml),季节性变化显著(P < 0.01);个体水平上,不同个体雄性睾酮均呈现显著的季节性变化(P < 0.01);成年雄性睾酮分泌水平与生境温度变化呈显著正相关关系(P < 0.05),且在交配季节初期雄性睾酮浓度最高,交配季节末期降到最低。研究结果支持短尾猴季节性繁殖的结论,且环境温度是影响短尾猴雄性睾酮浓度的可能因素。

关键词: 短尾猴 雄性 睾酮 季节性变化

Abstract: This study was conducted to help clarify seasonal changes in fecal testosterone of wild Tibetan macaques (Macaca thibetana). The study was conducted over a 12-month period (October 2005 - September 2006)at the Huangshan National Park. The study period encompassed the 7-month mating season as well as the 5-month non-mating period. A total of 426 fecal samples from five wild,adult male Tibetan macaques were collected. Fecal testosterone was analyzed via radioimmunoassay (RIA)following standardized procedures. The results showed that testosterone levels varied significantly across the 12 months in the Yulinkeng YA2 troop (P <0.01),and that the concentration of fecal testosterone during mating season [12.28 ± 5.75 ng/ ml (Mean ± SD)]was significantly greater (P < 0.01)than during non-mating season (9.42 ±4.99 ng/ ml). Testosterone levels were significantly different between mating season and non-mating season for all the five adult males (P <0.01). There also were positive correlations between fecal testosterone and environmental temperature (P< 0.05),and were highest or lowest in the early or later parts of the mating season,respectively. These results support earlier reports that wild Tibetan macaques display seasonal breeding. Further,seasonal variation in testosterone appears to be influenced by environmental temperature.

Key words: Fecal testosterone Male Seasonal variation Tibetan macaques (Macaca thibetana)