基于鳞片计数对6种钝头蛇分类的初步研究
A Preliminary Study on the Classification of Six Species in Pareas Based on Scale Counting
王湘君 1陈文 2林福星 1罗雯 1王仲楷1
作者信息
- 1. 海南热带海洋学院水产与生命学院,两栖爬行动物研究省级重点实验室,海南 三亚 572022
- 2. 海南热带海洋学院理学院,海南 三亚 572022
- 折叠
摘要
该研究旨在为钝头蛇属6个物种分类提出建议.选取58条来自6种钝头蛇的鳞片计数数据,使用形态学中的"腹鳞"、"尾下鳞"和"腹鳞+尾下鳞"3个常用指标,比较其差异系数和t检验结果;并结合地理分布信息,以及分子系统学研究结果进行综合分析.结果表明,2种统计方法结果一致性较强,其中平鳞钝头蛇与棱鳞钝头蛇,在3个形态学指标上均无明显差异;横纹钝头蛇与横斑钝头蛇钝头蛇,差异较小;缅甸钝头蛇,与其他钝头蛇都有差异.得出结论,平鳞钝头蛇与棱鳞钝头蛇亲缘关系较近,中国钝头蛇与这2种蛇较近;横纹钝头蛇与横斑钝头蛇亲缘关系较近,缅甸钝头蛇与其他钝头蛇亲缘关系较远.差异系数结合t检验法,运用于蛇类鳞片计数可以得出更有说服力的结论.
Abstract
In order to suggest the classification of Pareas,the scale data from 6 species 58 individuals have been selected.The difference coefficients and t-test results of three common indicators of morphology have been compared,including"abdominal scale","caudal scale"and"abdominal scale + caudal scale".Then,geographical distribution information and molecular systematics research results have been combined to analysis.The results show that the two statistical methods have strong consistency.There was no significant difference in the three morphological indexes between P.boulengeri and P.carinatus;and the difference between P.margaritophorus and P.macularius has been small;however,P.hamptoni has been different from other Pareas.Therefore,it is concluded that the relationship between P.boulengeri and P.carinatus is close,and it between Pareas chinensis and the first two species has been also relatively close;but the relationship between P.margaritophorus and P.macularius is close.However,the distant relative among P.hamptoni and other species has been also indicated.The difference coefficient combined with t-test method could be applied to the counting of snake scales to get more convincing conclusions.
关键词
钝头蛇属/物种/鳞片计数/t检验Key words
Pareas/Species/Scale counting/T-test引用本文复制引用
基金项目
水产学海南省省级特色重点学科建设经费()
海南省自然科学基金高层次人才项目(321RC587)
海南热带海洋学院2023年大学生志愿者暑期"三下乡"社会实践活动立项共同资助()
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据