| 1. | Man would have to assist in the maintenance of species populations by habitat manipulation .
人类仍将通过居住地管理来帮助保持种群体。 |
| 2. | The number of mixed species population is twice as many as single species population
4只左右。混合群的数量是单种群数量的2倍。 |
| 3. | Spatial distribution pattern of tree species populations and interspecific association in fraxinus mandshurica and juglans mandshurica forest community
水胡林群落树木种群空间分布及种间关联性 |
| 4. | Already resources are depleting , with the report showing that vertebrate species populations have declined by about one - third in the 33 years from 1970 to 2003
资源正逐渐被耗尽。报告显示，从1970年到2003年的33年间，脊椎物种种群已经减少了近三分之一。 |
| 5. | The objective of the baseline monitoring work is to detect change in underlying environmental conditions and species populations to act as a warning system against any adverse impacts
基线监测工作的目的是要监测潜在环境情况和种群的转变，以作为防避所有负面影响的警告系统。 |
| 6. | Protection of biodiversity should aim at both habitats sites and individual species , so that species populations that are not found in protected areas could also be afforded protection
保护生物多样性应兼顾生境地及个别物种的存护，让分布于保护地区以外的种群也可得到适当的存护。 |
| 7. | The crash of freshwater biodiversity - with more than a 50 % decline in species populations since 1970 - says it all : wetlands and rivers are the source of life and they are being destroyed fast
淡水中生物多样性的衰减? ?自1970年以降，物种数量以逾50 %的速度递减? ?总的说来：沼泽和江河是生命的起源，但是它们被很快摧毁。 |
| 8. | If sites are encroached into , or species populations threatened , by unavoidable development , compensation mitigation in the form of recreated habitats and or species re - introduction should be undertaken to ensure that total biodiversity is not adversely impacted
若因不可避免的发展破坏该等生境，或威胁生物种群的存活，有关方面应实行补偿计划，包括重建生境区及或重新引入物种，确保生物多样性不受负面影响。 |
| 9. | Dusky thrush ( turdus naumanni ) , common magpie ( pica pica ) , bohemian waxwing ( bombycilla garrulus ) , grey - faced woodpecker ( picus canus ) mainly consists of single species , and the average population size is 6 . 26 individuals ( 1989 - 1990 ) and 7 . 44 individuals ( 2001 - 2002 ) , the mixed species population mainly consists of great tit ( parus major ) , marsh tit ( parus palustris ) , eurasian nuthatdch ( sitta europaed ) , the average species number is about 3 , average number is 7 . 4 individuals
冬季鸟类的集群明显，单种群主要为长尾山雀、斑鸦、喜鹊、太平鸟和黑枕绿啄木鸟群，每群平均个体数为6 26只门? 1990年）和7 44只（ 2001 2002年） ，混合群主要由大山雀、沼泽山雀和普通幅构成，每群平均种数在3种左右，平均个体数在7 |
