biogeographic

Study on global distribution of algae biogeographic biota in early and Middle Cambrian

全球早、中寒武世藻类生物地理分区初探

Division of Carboniferous-Permian biogeographic province in Jilin province is a complicated question.

吉林省石炭二叠纪生物地理区的划分是一个复杂的问题。

Oasis is survival and development base of the people in arid area. Its changes have been the core research of biogeographic processes and human activities.

绿洲是干旱区人民生存发展的基地，其发展变化一直是干旱区生态地理过程和人类活动研究的核心。

In order to analyze the distribution pattern and biogeographic evolution in genetic diversity of domestic ducks of this marker, the mitochondrial D-loop of 106 samples collected from 9 breeds of domestic ducks were sequenced, and 31 haplotypes were identified.

通过对江淮流域9个家鸭品种106个样本的线粒体D-loop区的序列分析，探讨了各品种体现在该特征的遗传多样性的现代分布格局及其地理演化过程。

The analyzation of provinces aging differences BIOGEOGRAPHIC DIVISIONS OF CARBONIFEROUS IN YUNNAN

云南早石炭世生物地理分区

Descriptive biogeographic study on albian-campanian calcareous nannofossils

Albian－Campanian钙质超微化石描述生物地理学研究

Methods Entomological classification principle and method and biogeographic theory are used.

方法采用昆虫分类学原理和方法与生物地理学理论.

Biogeographic Patterns of Polyploid Misgurnus Anguillicaudatus in Hubei Province and Basic Studies on Its Breeding

湖北省多倍体泥鳅分布格局及泥鳅育种基础研究

For relatively well-studied groups, such as the ants, hypotheses regarding biogeographic origins can be posed based simply on the distribution of related taxa.

我国格木的地理分布与种实表型变异研究较多的类群有蚂蚁，基于相关种类的分布臆测生物地理的起源。

China is often known for bestriding Palaearctic and Oriental biogeographic realm, but the precise pision east of Qinling Mountain is not specific all the while.

我国动物地理区划向以横跨古北界和东洋界而著称，但两界在我国东部即秦岭以东地区的精确划界始终没有明确的认识。

So this area belongs to the central zone of the North Pacific in biogeographic zonations of nannoplankton as the East China Sea and the South China Sea.

tenuis的出现，表明该区钙质超微化石组合面貌与东海外陆架相似，和东海及南海都属于北太平洋中央水团组合。

The biogeographic characteristics, damage characteristic and quarantine significance of PWN were elaborated.

通过资料分析，阐述了松材线虫的世界分布、生物地理学特性、危害特点与检疫重要性；编制了松材线虫的世界分布地图。