理学 >>> 数学 信息科学与系统科学 物理学 化学 天文学 地球科学总论 大气科学 地球物理学 地理学 地质学 水文学 海洋科学 生物学 科学技术史
搜索结果: 1-10 共查到理学 body size相关记录10条 . 查询时间(0.205 秒)
Smaller-bodied ruminants forage primarily for the highest energy intake, while equids -- which tend to be larger -- choose to forage in areas close to surface water, with less attention to forage cond...
A new study shows that the body size of the iconic gigantic or megatooth shark, about 15 meters (50 feet) in length, was indeed anomalously large compared to the body sizes of its relatives.Formally c...
There is increasing evidence for variation in rates of nucleotide substitution among divergent taxonomic groups. Here, we summarize published rate data and show a strong relationship between substi...
The nutrients excreted by fish in their “pee” may be critical to the health of coastal ecosystems. But knowing whether generalizations can be made about how to predict these nutrient levels in various...
Zooplankton are not uniformly distributed in space but are patchy at multiple scales as a result of interactions between their directed motion and both large- and small-scale water currents. Using &#...
We analyzed size-dependent variations in spatial patchiness of the eight numerically dominant euphausiid species in the California Current System (Euphausia pacifica, Nematoscelis difficilis, Nyctiph...
Sardine (Sardina pilchardus) is one of the most important species among Turkish fisheries and is broadly distributed along its coastal waters. In the present study, mitochondrial DNA sequences from th...
题目:S15-4 Large body size in island-dwelling passerines: the roles of insular specialization, niche expansion and ecological release 作者:Ian P.F. OWENS, Susan N. SCOTT, Sarah I. ROBINSON, Sonya M. CL...
5 April 2007,Scientists have discovered a sequence of canine DNA key to the great diversity in the body size of dogs, from Chihuahuas to Grant Danes, according to research in the 6 April issue of Scie...
Strong body size correlates, wing and thorax lengths, of Drosophila melanogaster populations from the Eastern Mediterranean were measured and tested for the presence of autocorrelation, i.e. nonrandom...

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...