陕西师范大学学报(自然科学版)
陝西師範大學學報(自然科學版)
협서사범대학학보(자연과학판)
JOURNAL OF SHAANXI NORMAL UNIVERSITY(NATURAL SCIENCE EDITION)
2010年
2期
73-75,82
,共4页
王宏元%柴丽红%李忻怡%张育辉
王宏元%柴麗紅%李忻怡%張育輝
왕굉원%시려홍%리흔이%장육휘
两栖纲%有尾目%生存状况%中国
兩棲綱%有尾目%生存狀況%中國
량서강%유미목%생존상황%중국
amphibia%caudata%conservation status%China
依据有尾两栖动物的年繁殖次数、产卵量、栖息地等自然生存特点和分布区域以及地理隔离等生物特征设定10个因子,将每个因子划分4个等级,该因子的等级越低对动物生存影响越小,等级越高对动物生存的影响越大.对中国常见的11种有尾两栖动物10个因子的统计结果表明,其平均值从1.2到1.9不等,73%的物种平均值都大于1.5.说明中国大多数有尾两栖类动物都面临着生存威胁,属于渐危物种.建议通过建立自然保护区等措施加强保护.
依據有尾兩棲動物的年繁殖次數、產卵量、棲息地等自然生存特點和分佈區域以及地理隔離等生物特徵設定10箇因子,將每箇因子劃分4箇等級,該因子的等級越低對動物生存影響越小,等級越高對動物生存的影響越大.對中國常見的11種有尾兩棲動物10箇因子的統計結果錶明,其平均值從1.2到1.9不等,73%的物種平均值都大于1.5.說明中國大多數有尾兩棲類動物都麵臨著生存威脅,屬于漸危物種.建議通過建立自然保護區等措施加彊保護.
의거유미량서동물적년번식차수、산란량、서식지등자연생존특점화분포구역이급지리격리등생물특정설정10개인자,장매개인자화분4개등급,해인자적등급월저대동물생존영향월소,등급월고대동물생존적영향월대.대중국상견적11충유미량서동물10개인자적통계결과표명,기평균치종1.2도1.9불등,73%적물충평균치도대우1.5.설명중국대다수유미량서류동물도면림착생존위협,속우점위물충.건의통과건립자연보호구등조시가강보호.
Ten factors, including annual reproductive times, clutch size and habitat range, etc. , were used to assess the living status of 11 Chinese urodeles. Each factor was divided into four grades. The values, 0, 1, 2, and 3, were assigned respecitvely to the grades. The values are indicators of magnitude of the grade. The higher the grade is, the bigger the threat of animals is. The average values of the 11 factors were ranged from 1.2 to 1.9. Based on the assessments the average values of 73% species are larger than 1.5, which indicates that most urodele amphibians are in danger in China. Natural reserves should be established to protect these endangered animals as soon as possible.