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浙江重点蛇类资源数量与生态分布研究
Research on population quantity and ecological distribution of main snakes in Zhejiang Province
【摘要】 采用系统抽样技术和样带法,对浙江12个重点蛇种的数量和生态分布进行了研究.初步查清了这12个蛇种在其分布区范围的种群出现密度和种群资源量,分别为:赤链蛇,2.97条/km2,60.47×104条;王锦蛇,4.57条/km2,93.05×104条;玉斑锦蛇,0.39条/km2,7.94×104条;黑眉锦蛇,0.83条/km2,33.80×104条;赤峰锦蛇,5.09条/km2,0.36×104条;灰鼠蛇,1.04条/km2,21.17×104条;滑鼠蛇,0.74条/km2,15.07×104条;乌梢蛇,4.08条/km2,83.07×104条;银环蛇,1.35条/km2,41.23×104条;眼镜蛇,2.80条/km2,57.01×104条;五步蛇,1.40条/km2,27.96×104条;蝮蛇,4.37条/km2,63.10×104条.生态分布的统计研究表明:在小地形类型上,下坡和山谷地带蛇类数量最多,主要为王锦蛇、灰鼠蛇、滑鼠蛇、乌梢蛇、眼镜蛇和五步蛇;平地上次之,主要是赤链蛇、蝮蛇和银环蛇;黑眉锦蛇和玉斑锦蛇在平地与下坡及山谷地带分布数量不相上下.在小生境类型上,以灌草丛上蛇类最多,主要是眼镜蛇、滑鼠蛇、五步蛇和黑眉锦蛇;农田和旱地次之,主要为赤链蛇、灰鼠蛇和银环蛇;再是园地和乔木林,玉斑锦蛇主要在园地,五步蛇集中分布在灌草丛和乔木林;乌梢蛇和王锦蛇在上述生境均有分布,在灌草丛上稍占优势;蝮蛇则多见于农田、旱地、园地和灌草丛.文末,提出了如何保护好浙江
【Abstract】 By means systematical sampling and belt sampling, a research on the quantity of population resources and ecological distribution of predominant snake species in Zhejiang Province was conducted. The figures of snakes, appearance density and their population quantity were basically found out as bellow : Dinodon rufozonatum 2. 97 ind. /km2 and 60. 47 × 104 individuals totally; Elaphe carinata 4. 57 ind./km2 and 93. 05× 104 individuals, E. mandaeina 0.39 ind./km2 and 7. 94× 104 individuals , E. tae-niura 0. 83 ind. /km2 and 33. 80×104 individuals, E. anomala 5. 09 ind. /km2 and 0. 36×104 individuals, Ptyas korros 1. 04 ind. /km2 and 21. 17× 104 individuals, P. mucosus 0. 74 ind. /km2 and 15. 07×104indi- viduals, Zaocys dhumnades 4.08 ind./km2 and 83. 07 × 104 individuals, Bungarus multicinctus 1.35 ind. /km2 and 41. 23 × 104 individuals, Naja atra 2. 80 ind. /km2 and 57. 01 × 104 individuals , Deinagk-istrodon acutus 1. 40 ind. /km2 and 27. 96× 104 individuals and Gloydiasb brevicaudus 4. 37 ind. /km2 and 63. 10 X 104 individuals in total. According to geographic distribution, majority of Elaphe carinata, Ptyas korros, P. mucosus, Zaocys dhumnades, Naja atra and Deinagkistrodon acutus lived in downhill and valley areas; Dinodon rufozonatum, Gloydiasb brevicaudus and Bungarus multicinctus were mainly distributed in plain; E. taeniura and E- mandaeina distributed in plain , which almost equals those in downhill and valley areas. According to ecological environment, shrubbery held the greatest snake species, and the main species were Naja atra, P- mucosus, Deinagkistrodon acutus and E. taeniura, farmland and dry land come the secondly and Dinodon rufozonatum, Ptyas korros and Bungarus multicinctus are more frequently seen, garden plot and arbor forest comes the third and E. mandaeina is the main one, Deinagkistrodon acutus concentrates in shrubbery and arbor forest, Zaocys dhumnades and E-laphe carinata live in every environment mentioned above but more frequently appears in shrubby, and Gloydiasb brevicaudus mostly in farmland, dry land, garden plot and shrubby. At the last part of the article, the author presented his suggestion about the strategy of snake resources protection in Zhejiang Province.
【Key words】 quantity qf population resources; ecological distribution; snakes; Zhejiang Province;
- 【文献出处】 浙江大学学报(农业与生命科学版) ,Journal of Zhejiang University(Agric.& Life Sci.) , 编辑部邮箱 ,2003年05期
- 【分类号】S862
- 【被引频次】14
- 【下载频次】240