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安徽省赤链蛇的资源现状及种群分布特征
Resource Status nd Distribution Pattern of Dinodon rufozonatum in Anhui Province
鲍方印,周勇,王帮正,王松,肖明松,崔峰
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作者单位:(安徽科技学院生命科学学院,安徽凤阳233100)
中文关键字:安徽省;赤链蛇;种群生态;资源
英文关键字:Anhui province; Dinodon rufozonatum; population ecology; resources
中文摘要:20095~20105月采用样带法对安徽省的赤链蛇种群资源现状和生态特征分区进行了调查,结果表明:赤链蛇在安徽全省分布较广,水平分布具有随机性和间断性,垂直分布的海拔下限为15 m,上限1300 m;赤链蛇种群密度为皖南山区>江淮丘陵>沿江平原>淮北平原>大别山区,最高3.00 /hm2,最低1.55 /hm2;全省赤链蛇总体数量估算值在22.46~44.58万条。对小地形和小生境的分布情况分析表明,赤链蛇喜分布在平地和山底山脊和上坡绝少分布;各类生境均有分布,但以农田和灌丛为主。对皇甫山(江淮丘陵)和鹞落坪(皖西大别山)赤链蛇种群的年龄和性比分析,表明两地赤链蛇年龄结构特点及种群结构比较稳定,种群总体处于增长状态;性别比例基本平衡,种群处于健康发展之中。
英文摘要:Population ecology and distribution of Dinodon rufozonatum in Anhui province were investigated by belt transect methods from May 2009 to May 2010.The result indicates: D. rufozonatum was widely distributed in Anhui province, and its horizontal distribution was random and discontinuous. Theminimum altitude of the vertical distribution was 15 m and the maximum was 1300 m. The population density of D. rufozonatum in Anhui was: Wannan hills>Jianghuai hills> River valley>Huaibei plain>Dabie Mountains, with a maximum density of 3.00 ind./hm2 and a minimum density of 1.55 ind./hm2. Approximately the overall amount of D. rufozonatum in Anhui was between 224.6 thousand and 445.8 thousand.The study of the distribution in small terrains and niches shows that D. rufozonatum was likely to be distributed in the plains and valleys rather than in the ridges and hills. D. rufozonatum was found in various habitats but mostly in the fields and shrubs. The analysis of population age and sex ratios from Huangfu Mountain (Jianghuai) and Dabie Mountains (in the West) shows: the populations of D. rufozonatum had a relatively stable structure, the majority of the populations were in a growth state, the gender ratio is relatively balanced and the population is increasing normally.
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国内统一连续出版物号:51-1193/Q |国际标准出版物号:1000-7083
主管单位:四川省科学技术协会  主办单位:四川省动物学会/成都大熊猫繁育研究基金会/四川省野生动植物保护协会/四川大学
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