理学 >>> 生物学 >>> 生物数学 生物物理学 生物化学 细胞生物学 生理学 发育生物学 遗传学 放射生物学 分子生物学 生物进化论 生态学 神经生物学 植物学 昆虫学 动物学 微生物学 水生生物学 病毒学 人类学 生物工程 生物学其他学科
搜索结果: 1-15 共查到生物学 River相关记录43条 . 查询时间(0.171 秒)
If we could rewind the tape of species evolution around the world and play it forward over hundreds of millions of years to the present day, we would see biodiversity clustering around regions of tect...
A new analysis of the hydrologic cycle across the North Slope of Alaska reveals significant increases in subsurface runoff and cold season discharge -- changes scientists say reflect thawing permafros...
The next time a river overflows its banks, don't just blame the rain clouds. Earth system scientists from the University of California, Irvine have identified another culprit: leafy plants.In a study ...
近日,由中国科学院水生生物研究所陈宇顺研究员等主编的《Fishery Resources, Environment, and Conservation in the Mississippi and Yangtze (Changjiang) River Basins》一书在美国大自然保护协会、 美国鱼类与野生动物局、美国地质调查局及美国阿肯色大学等机构的资助下,由美国渔业(水产)学会正式出版(htt...
New bioarchaeological evidence shows that Nubians and Egyptians integrated into a community, and even married, in ancient Sudan, according to new research from aPurdue University anthropologist.“...
The δ13C values of 51 plant species selected from eight plant communities along a moisture gradient were measured. Our results showed that all the community types that we investigated are dominated by...
BLOOMINGTON, Ind. -- Research by Indiana University geologists suggests that an intermediate amount of vegetation -- not too little and not too much -- is most effective at stabilizing freshwater rive...
We studied trophic dynamics in a warm eutrophic subtropical river (Bremer River, Australia) to determine potential sources of dissolved organic carbon (DOC) and the fate of heterotrophic bacterial pr...
The distribution of the river blenny (Salaria fluviatilis) in the Ceyhan River basin and the morphological differences between the sexes were investigated. Occurrence of the river blenny in the Ceyhan...
The karyotype of Pseudophoxinus antalyae was analyzed using G-banding, C-banding, Ag-NOR staining, and Q-banding. Chromosome analysis of this species, which lives in the Berdan River and Berdan Dam La...
In our research conducted in the River Yarqon during 2003-2006, we identified 313 taxa of algae and cyanobacteria belonging to 8 taxonomical divisions. Out of these 313 taxa, 268 taxa (85.6%) were ind...
About 100 species of Oligochaeta belonging to 7 families have been identified in the Pechora River basin, the largest waterway in the North-East of European Russia. The underlying studies were carr...
In this study, the age and growth of Himri Barbel (Barbus luteus Heckel, 1843) were determined based on specimens collected from Orontes River-Turkey, during the period from February 2004 to January 2...
Domestic buffalo and cattle are two extremely important livestock species in worldwide agricultural production. In this paper, to investigate genetic diversity and divergence among swamp buffalo, rive...
摘要通过2n=50和2n=49两种核型三品种杂交水牛繁殖记录分析和其中2n=49三品种杂交水牛联会复合体及其精子染色体研究,结果表明,后者虽然公母都是可育的,由于它产生两种正常配子(n=24,n=25)和两种异常配子(n=24+1,n=25-1),自群繁殖导致其子代染色体多态性(2n=50,2n=49和2n=48);其异常配子,与正常配子结合,则产生非整倍性,致其繁殖力降低,表现为情期配种受胎率降...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...