species diversity

基本解释

"But hybridization driven by human activities tends to occur quickly and to reduce genomic and species diversity," Kelly and his team write.
“但是由人类活动驱使的杂交行为却有迅速发展并减少基因与物种多样性的趋势，”Kelly和他的研究团队写道。
The release of non-native fish is controversial, because big predators like blue catfish almost certainly alter food webs and species diversity in areas where they are introduced.
放生非野生鲶鱼目前还是有争议的，因为像蓝鲶这样的大型捕食者几乎肯定会改变其引入地区的食物网和物种多样性。
Most scientists have assumed that, as carbon dioxide levels increase and the Earth warms, plant species diversity in the rainforests will start to dwindle, with plantsunable toadapt to the heat.
大多数科学家原先猜想随着二氧化碳量的增加和地球变暖，因为植物不能适应提高的温度，雨林中的植物物种种类会开始萎缩。

Patterns of species diversity are biased: they are based on the species we know about, which tend to be large, visible animals like butterflies, birds and mammals.
ECONOMIST: Green.view: Finger on the spot The
Compared with the species diversity in these patches when the final count was made, the number of species in the culled patches of woodland was down by about a quarter.
ECONOMIST: Ecology: Under the mistletoe

生物多样性
Results indicate that the macrozoobenthos in Zhalong Wetland with high species diversity are abundant. A total of 64 species of macrozoobenthos,belonging to 3 phyla and 6 orders,were found in the study area.
研究结果表明,扎龙湿地自然保护区大型底栖动物种类丰富,生物多样性较高,共发现大型底栖动物64种,隶属于3门6纲。
物种分异度
物种多样性

物种多样性
Human being affected the species diversity of forest communities.
人为因子的干扰对青城前山森林植被的物种多样性有较大的影响。
植物多样性
Based on analysis of main climatic factors in Yuanmou dry-hot valley,soil physical and chemical properties,growth conditions,natural regenernation,species diversity among plantations. Then evaluate stability of the plantations synthetically and quantificationally,get the most stability plantation model.
本研究通过分析元谋干热河谷地区主要气象因子变化、各类型人工林土壤理化性质、林分生长状况、天然更新状况、林下植物多样性，定量评价各人工林稳定程度，得出最稳定的人工林模式，并针对该地区人工林的现状提出生态系统管理对策。
地球科学
物种多样性