摘要
在回顾中国淡水与土壤有壳肉足虫研究历史的基础上 ,根据最新分类系统修订了已报道淡水与土壤有壳肉足虫的分类 ,共计 3纲 3目 2 0科 38属 2 4 4种 (包括 5 2亚种 )。其中淡水种类 37属 2 33种及亚种 ,土壤种类 18属 6 4种及亚种 ,淡水与土壤共有 17属 5 3种及亚种。首次对中国淡水有壳肉足虫进行区系分析 ,用Jaccard共同系数分析西藏、贵州梵净山、湖南索溪峪、湖北东湖、江苏南京等 5个地区的淡水有壳肉足虫区系相似性 ,区系相似性系数在 0— 0 2 5或 0 2 5— 0 5范围内 ,表明各地区间的区系为极不相似或中等不相似。采用模糊等价矩阵聚类法分析 5个地区间的区系远近关系 ,结果表明其他 4个地区与西藏的相似程度和地区间距离呈反比 :西藏—贵州梵净山(0 35 8) >西藏—湖南索溪峪 (0 32 4 ) >西藏—湖北东湖 (0 2 2 8) >西藏—江苏南京 (0 0 94 )。
The Testacea or testate amoeba comprises those amoeboid protozoas which are enveloped by a shell,within which the body can be completely withdrawn.sub Testacea belong to Kingdom Protozoa:Phylum Sarcomastigophora:Subphylum Sarcodina:Superclass Rhizopoda, including part of the Class Lobosea,Class Filosea and Class Granuloreticulosea.Ever since the 1920s,the collecting and studying of Testacea have been carried out in Nanjing,China by Chia Chi Wang.Subsequently,research areas were expanded to Beijing,Hubei,Tibetan Plateau,et al.Many papers and monographs were published in which 26 new species and subspecies belonging to 10 genera have been described.However,for many taxa,we knew nothing except the fact of their existence.It demands a great deal of further work in this field.The authors have listed all the species or genera of freshwater and soil Testacea reported in China.Removed some synonyms,244 taxa were presented.According to the current classification system,there were 244 species and subspecies belonging to 38 genera and 20 families.While 233 species and subspecies belonging to 37 genera were freshwater Testacea, 64 species and subspecies belonging to 18 genera were soil Testacea.This catalogue is the most comprehensive in China, therefore it will help to further advances in the researching of Testacea.Besides, in order to understand the biogeography of these organisms, the faunal similarity of freshwater Testacea in five areas(Xizang; Fanjingshan, Guizhou; Suoxiyu, Hunan; Lake Donghu, Hubei; Nanjing, Jiangsu) were analyzed using Jacard's coefficent of similarity.The similarity value arranged in order of size between any two areas were 0.358 (Xizang-Fanjingshan) > 0.324 (Fanjingshan-Suoxiyu) > 0.282 (Xizang-Suoxiyu) > 0.228 (Fanjingshan-Donghu) > 0.194 (Suoxiyu-Donghu) > 0.140 (Xizang-Donghu)>0.094(Donghu-Nanjing)>0.091(Suoxiyu-Nanjing)>0.090 (Xizang-Nanjing) > 0.081 (Fanjingshan-Nanjing).The results, in the range of 0.081 to 0.358, suggested significant or medium difference in the faunal similarity between any two areas.Based on Jacard's coefficent of similarity, a fuzzy matrix cluster analysis was performed.Data from the cluster analysis showed that the similarity relationships between Xizang and other four areas were Xizang-Fanjingshan (0.358) > Xizang-Suoxiyu (0.324) > Xizang-Lake Donghu (0.228) >Xizang-Nanjing (0.094).The similarity values showed obviously negative correlation with the field distance.But the topography and climatology need to be considered to reasonably explain the geographical distribution of the freshwater Testacea in five areas.
出处
《水生生物学报》
CAS
CSCD
北大核心
2004年第4期426-433,共8页
Acta Hydrobiologica Sinica
基金
中国科学院知识创新工程项目 (KSCX2 2 0 6)
国家自然科学基金 ( 3 973 0 0 70
3 0 2 70 185 )
中国科学院东湖湖泊生态系统实验站开放研究基金 ( 2 0 0 2 0 2 )资助
