摘要
采用系统抽样技术和样带法及标记重捕法,对浙江7个重点两栖动物的种群数量进行了研究.初步查清了这7个两栖动物的分布区范围、种群出现密度和种群数量,分别为:中华大蟾蜍,全省分布,32.06只/km2,326.37×104只;黑眶蟾蜍,浙南分布,9.68只/km2,28.50×104只;沼蛙,浙南分布,36.25只/km2,106.75×104只;黑斑蛙,全省分布,121.61只/km2,1237.99×104只;棘胸蛙,全省大陆分布,4.35只/km2,43.44×104只;虎纹蛙,全省分布,5.40只/km2,54.97×104只;镇海棘螈,仅分布于宁波市北仑区,9.87条/km2,共有成体592条.进而对种群资源现状进行了评价.
By means of systematical sampling and belts sampling, and mark release recapture, a research on the quantity of population of predominant amphibians in Zhejiang Province was conducted. According to the investigation and calculation, the distribution range, appearance density and population quantity of 7 amphibians may be summarged as below: Bufob. gargarizans is distributed over the whole Zhejiang, 32.06 ind./km^2 and 326.37×10~4 individuals totally; B. melanostictus is distributed over the south of Zhejiang, 9.68 ind./km^2 and 28.50×10~4 individuals; Rana guentheri is distributed over the south of Zhejiang, 36.25 ind./km^2 and 106.75×10~4 individuals; R. nigromaculata is distributed over the whole Zhejiang, 121.61 ind./km^2 and 1237.99×10~4 individuals; R. spinosa is distributed over the continent of Zhejiang, 4.35 ind./km^2 and 43.44×10~4 individuals; R. tigrina rugulosa is distributed over the whole Zhejiang, 5.40 ind./km^2 and 54.97×10~4 individuals; Echinotriton chinhaiensis is distributed only over Beilun District of Ningbo City, 9.87 ind./km^2 and 592 individuals. The authors further give an appraisal on the population resources of amphibians in Zhejiang.
出处
《浙江大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2004年第5期536-540,共5页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
"九五"国家重点资源普查项目
浙江省省长基金资助项目.
关键词
种群出现密度
种群出现量
两栖动物
浙江省
appearance density of population
quantity of population
amphibian
Zhejiang province
