species number

A number of features discriminate this species from others.

有许多特征使这一物种与其他物种区别开来。

Both species number and abundance of the metazoan zooplankton were dominated by the small-sized species, and decreased with body mass, while biomass distribution had a peak in the medium size class, 4.39 μ g to 8.78 μ g.

后生浮游动物的种类和数量均是以小个体为主，并且随着体重增大逐渐减少，而生物量则在4·39~8·78μg这一中等个体体重的位置上出现峰值。

Acarid of 134 species , individual number of which amounts to 4396, have been collected.

按个体数多寡, 甲螨类>革螨类>辐螨类>粉螨类.

Sp 1, were presented in the seawater samples, accounting for 11.6% of total dinoflagellate species number and 0-51.3% of dinoflagellate cell density found in the water column during the sampling period.

sp1，几乎全是该潮间带底栖甲藻的优势种，占水样中甲藻种数的11.6%。个体数占海水样品中甲藻总个体密度的0～51.3%，具有明显的季节性。

Many forest tree species have multiple archegonia which, after fertilization produce a number of proembryos.

许多林木树种都有颈卵器, 受精以后便产生许多原胚.

We can see a number of rare and endangered species breeding here.

我们可以看到一些稀有的濒临灭绝的物种在这里繁衍生息.

There was an obvious seasonal trend in the species number of epiphytic algae: spring> autumn> summer> winter.

附生藻类的种类数也表现出了明显的季节性，大致趋势为：春季＞秋季＞夏季＞冬季。

Sequence and Copy Number Variation of Oleate Desaturase Gene ( FAD2) in Brassica Species

芸薹属作物油酸脱饱和酶基因（FAD2）拷贝数和序列变异分析

The species number of arthropod on the grape trees in intensive management grapery was not significantly different from that in extensive management grapery, while on the ground vegetation, it was significantly different ( P < 0.05).

葡萄树上节肢动物物种数差异不显著，地面植被上物种数差异显著（P<0.05）；

The components of the species number have a significant seasonal change during the year. The quantity of Ardeidae and Laridae reaches the highest level in summer.

水鸟的数量组成中，以鹭类和鸥类最大；水鸟种类组成有较明显的季节性变化，其中鹭类和鸥类的鸟类数量和种类均在夏季达到最高值。

The seasonal order of phytoplankton species number from high to low was summer, spring, autumn, winter, while the spatial order was north, west, southwest, middle of the lake, south and east.

2浮游植物总种类数的季节变化特点为夏季春季秋季冬季，空间分布特征为北部西部西南部湖心区域南部东部。

China has the world's largest number of terrestial vertebrates, with a total of 1,800 species, which accounts for approximately one-tenth of the same species of vertebrates in the world.

中国陆栖脊椎动物种类居世界第一位，有1,800种，约占世界同类动物总数的十分之一。

The species number in the Bohai Sea is higher than in Jiao Zhou Bay , China.

此外,渤海的物种数量要明显地高于胶州湾.

Arthropods communities were extremely significant difference among the tree layer, shrub layer, herbaceous layer and leaf litter layer, the individual number, species number, species diversity and evenness index of Arthropods were the maximum in herbaceous layer.

节肢动物群落在林冠层、灌木层、草间层和枯落物层4个垂直层次之间有极显著差异，草间层具有最高的物种数、个体数、多样性指数和均匀度指数。

The result of the research showed that the species number has a slight change over 30 years in the fragment, while the index of species diversity decreases by 24%.

结果表明，该片断森林经30多年的演化，物种数变化不大，但物种多样性指数降低24%。

Species number is bigger in the south slope than that of the north slope.

阳坡物种数目总体要大于阴坡的物种数量；

The total number of species on the planet appears to be growing by leaps and bounds.

地球上的物种数目似乎正飞速增长。

The result shows that there are obvious difference in the colonization rate, density and species number of AMF when the inocula are soil from the different plant community.

结果表明：用不同植物群落的土样作为接种物，三叶草菌根侵染率和根际AMF种类和密度有很大差异，但菌根真菌种类数目较多；

This includes 30,000 species of land animals-including humans-and a similar number of ray-finned fish, the scientists found.

科学家们发现这些动物包括3万种陆地动物，和一小部分鳍刺类鱼。