species diversity

基本解釋

"But hybridization driven by human activities tends to occur quickly and to reduce genomic and species diversity," Kelly and his team write.
“但是由人類活動(dòng)驅(qū)使的雜交行為卻有迅速發(fā)展并減少基因與物種多樣性的趨勢，”Kelly和他的研究團(tuán)隊(duì)寫道。
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.
放生非野生鯰魚目前還是有爭議的，因?yàn)橄袼{(lán)鯰這樣的大型捕食者幾乎肯定會(huì)改變其引入地區(qū)的食物網(wǎng)和物種多樣性。
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.
大多數(shù)科學(xué)家原先猜想隨著二氧化碳量的增加和地球變暖，因?yàn)橹参锊荒苓m應(yīng)提高的溫度，雨林中的植物物種種類會(huì)開始萎縮。

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

生物多樣性
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.
研究結(jié)果表明,扎龍濕地自然保護(hù)區(qū)大型底棲動(dòng)物種類豐富,生物多樣性較高,共發(fā)現(xiàn)大型底棲動(dòng)物64種,隸屬于3門6綱。
物種分異度
物種多樣性

物種多樣性
Human being affected the species diversity of forest communities.
人為因子的干擾對(duì)青城前山森林植被的物種多樣性有較大的影響。
植物多樣性
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.
本研究通過分析元謀干熱河谷地區(qū)主要?dú)庀笠蜃幼兓?、各類型人工林土壤理化性質(zhì)、林分生長狀況、天然更新狀況、林下植物多樣性，定量評(píng)價(jià)各人工林穩(wěn)定程度，得出最穩(wěn)定的人工林模式，并針對(duì)該地區(qū)人工林的現(xiàn)狀提出生態(tài)系統(tǒng)管理對(duì)策。
地球科學(xué)
物種多樣性