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- Nor can we any longer fall back on our historical trump card of geographic isolation. 我们也不再能依靠天然屏障的历史王牌。
- They maintain their identities in nature mainly because of geographic isolation. 它们在自然界保持了各自的鉴别特征,主要因为地理上的隔离。
- Those research shows that geographic isolation plays a more important role than genetic isolation in the phyogenesis of Abies. 研究表明 :在冷杉属树种的系统进化过程中 ;地理隔离比遗传隔离发挥了更大的作用 .
- Long time geographic isolation and breeding isolation might lead to the produce and differenciation of local population (or subspecies) and might affect the speciation. 长时间的地理隔离和生殖隔离很可能导致地方类群(或亚种)的产生和分化,并对新种的形成产生一定影响。
- Oceanic islands, due to their discrete geographic isolation, offer great opportunities for species conservation, being the natural laboratory for the study of biogeography and evolutionary ecology. 摘要海洋岛屿生态系统因具有明显的海域地理隔离而区别于陆地生态系统,被誉为生物地理与进化生态学研究的“天然实验室”。
- Classmate Rob Tyson blames Australia's geographical isolation for declining interest in foreign languages. 同学鲍勃·泰森批评澳大利亚的地理隔膜降低了对外语的兴趣。
- A provincialism that geographical isolation had forced on people for millennia was gone forever. 数千年来由于地理分隔所引起的地方主义,也随着这一变革而消失殆尽了。
- This can result in sympatric speciation, in which new species arise even though no geographical isolation has taken place. 结果导致同域物种形成,即使没有地理隔离也会产生新的物种。
- Experts say another problem faced by aboriginal communities is their geographical isolation and lack of medical workers. 专家指出,原住民社区面临的另一个问题是居住在偏僻地区,并且缺乏医疗人员。
- First, there is speciation (species-splitting or cladogenesis), caused by geographical isolation or some other mechanism. 首先,因地理隔离或其它一些机制导致物种形成(物种分裂或系枝进化)。
- The pacific herring(Clupea pallasii) populations appear discontinuous in its distributions because of geographical isolation. 摘要由于地理隔离,太平洋鲜在其分布区内常形成若干地方性种群。
- The climate of a large geographic area. 大气候广大地理区域内的气候
- The geographic occurrence or range of an organism. 生物的地理分布生物出现或分布范围的地理地区
- New Zealand's geographical isolation, historical biosecurity and strict animal quarantine practice have kept the country free from a number of pig pathogens including swine influenza. 新西兰与世隔绝的地理位置,悠久的生物安全历史及严格的动物检疫阻止了包括猪流感在内的一系列猪源性疾病在新西兰的发生。
- He examined each piece of evidence in isolation. 他分别审查每一证据。
- His isolation has made him blunt about the feelings of others. 他的孤立使他对别人的感情木然无知。
- The inland part of a political or geographic entity. 内陆一个政治或地理实体的内陆部分
- He was put in an isolation ward. 他住进了隔离病房。
- The study of the geographic distribution of organisms. 生物地理学研究有机体地理分布的学科
- Mayr emphasized the importance of allopatric speciation, where geographically isolated sub-populations diverge so far that reproductive isolation occurs. 迈尔强调异域成种的重要性;在地理上孤立的亚群产生的分歧偏离太远,以致出现生殖隔离。