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- Number of species and individuals, species diversity index and evenness, and proportion of wader birds decreased from bay-mouth to bay-head, and was lowest in midbay. 其中灣口的水鳥(niǎo)物種數、個(gè)體數量、多樣性指數、均勻度指數以及涉禽所占比例均為最高，灣底次之，灣中部最低。
- The species diversity index of second generation stand was small higher than the first . 二代林分喬木層物種多樣性指數、均勻度比一代林分略大；
- Number of species and individuals, species diversity index and evenness, and proportion of wader birds decreased from baymouth to bay-head, and was lowest in midbay. 其中灣口的水鳥(niǎo)物種數、個(gè)體數量、多樣性指數、均勻度指數以及涉禽所占比例均為最高, 灣底次之, 灣中部最低。
- The species diversity index of the tree layer was a bit low, and the general trend was shrub layer > treelayer > herb layer. 喬木層物種多樣性指數偏低,垂直結構各層次間物種多樣性大小依次為灌木層>喬木層>草本層。
- The species richness and species diversity index of the tree layer and shrub layer are obviously bigger than those of the herb layer. 喬木層、灌木層的物種豐富度、物種多樣性指數均明顯大于草本層。
- Densities (ind./hm2) were respectively 8.23, 5.76, 3.22, 4.18 in summer, and 18.86, 11.32, 6.34, 8.13 in winter. The index of bird species diversity were also increased in winter. 冬季為18.;86;11
- Generally, the order of the magnitude of species diversity was: shrub layer>tree layer>herb layer. 總體來(lái)看,栲屬群落物種多樣性在群落不同層次的變化規律為:灌木層>喬木層>草本層;
- It had obvious relationship between community stability and species diversity of shrubbery, the higher the index of shrubbery species diversity was, the more stabile the community was. 灌木層物種多樣性與群落穩定性之間存在顯著(zhù)關(guān)系,即灌木層多樣性指數越高,群落越穩定;
- It is suggested that the area is the main determinant and the best predictor of species diversity for Raniformes on Zhoushan archipelago. 我們認為，島嶼面積是舟山群島蛙類(lèi)物種多樣性的主要決定因素和最佳預測者。
- Seed mortality due to predation by animals may affect plant fitness, population dynamics, community structure and maintenance of species diversity. 因動(dòng)物捕食引起的種子死亡率影響植物的適合度、種群動(dòng)態(tài)、群落結構和物種多樣性的保持。
- Measurements of species diversity of plant communities along both DCCA axis 1 and an altitudinal gradient in the northern slopes of Qilian mountains was carried out. 利用DCCA排序和海拔高程排序相結合的方法 ,對祁連山北坡中段植物群落物種多樣性垂直分布格局進(jìn)行了初步研究。
- Based on the analysis of the major characters of species diversity in Anhui Province, this paper has discussed the problems about the conservation of biodiversity. 在分析安徽省物種多樣性主要特征的基礎上，著(zhù)重探討了生物多樣性保護的對策問(wèn)題。
- The species diversity of Castanopsis communities was not affected by altitude, which indicates the consistency of species diversity in Jinggang Mountain. 群落物種多樣性沒(méi)有表現出一個(gè)明顯的隨海拔高度的變化規律,這表明了井岡山栲屬群落物種多樣性的一致性;
- Different latitudinal patterns of species diversity were given in previous studies and therefore mechanisms have been put forward to explain these patterns. 摘要滇西北地區是全球25個(gè)生物多樣性保護熱點(diǎn)地區之一，是驗證生物多樣性理論的理想場(chǎng)所。
- A person's face is often an index of his mood. 一個(gè)人的臉部表情常常反映這個(gè)人的情緒。
- The objective was to test how similarity in species composition can explain the effects of species diversity on interannual variability in total aboveground biomass. 而隨著(zhù)均勻度的增加,生物量的變異性盡管在均勻度中等程度時(shí)似乎保持在同一水平,但總體上呈下降趨勢;
- According to the results of the forefathers, the classified index of species was rearranged and at the same time the problem and insufficiency in the study of plants of Coptis Salisb were put forward. 根據前人的研究結果，重新編排了該屬植物的分種檢索表，同時(shí)提出了目前該屬植物研究中存在的問(wèn)題和不足。
- Secondly, we have simulated the responses of species diversity to spatial and spatio-temporal heterogeneity of habitat destruction by the integration of cellular automata and fractal geometry. 并將元胞自動(dòng)機與分形相結合模擬了物種多樣性對生境毀壞空間異質(zhì)性和時(shí)空異質(zhì)性的響應；
- The species diversity is not only exhibited the complexity of flora in the HNNR, but also showed richness of species in communities and various types of animals and plants with economic value. 該區不僅擁有豐富的動(dòng)植物區系成分多樣性，而且具有高度的群落物種多樣性和經(jīng)濟類(lèi)型多樣性。
- The increasing sale of luxury goods is an index of the country's prosperity. 奢侈商品銷(xiāo)售量日增是該國繁榮的標志。
