Bigger individuals have been removed from the wild population and the overall life expectancy of the species has fallen.
较大的个体已经从野生种群中消失，并且整个物种的预期寿命都已经下降。
And one antelope in particular, the Arabian Oryx, which was hunted to near extinction, now has a wild population of over 1,000.
特别地，被猎杀至近乎灭绝的一种羚羊——阿拉伯羚羊，现在野生数量已超过1000只。
Where deaths have occurred among the wild population due to H5N1 infection, only a minority of birds appear to have been affected.
在出现因感染H5N1死亡野禽的地区，表现出感染症状的鸟只是少数。
These, together with farmed animals (farms must also contribute financially to the wild population) generate $20m in revenue for the state every year.
这些，连同其它人工养殖的动物（其它动物的养殖也必须为其野生种群的保护提供资金）每年为该州的财政收入贡献达2千万美元。
The genetic distances between wild population and two cultured populations were 0.0421 and 0.0809, respectively.
淡水中心种群、前洲种群与野生种群间的遗传距离分别为0.0421和0.0809。
Compared with the wild population, the cultivated population has a lower percentage of polymorphic loci and heterozygosity.
与野生群体相比，养殖群体的多态位点比例和杂合度都有不同程度的降低。
Rescued orangutans, of whom more than 300 are in her care centre in the park, could be freed without danger to the wild population.
如果这个项目得以实施的话，公园里她所救援和照料的300多只猩猩就可以被放归野外，而不会对野生猩猩群体产生危害。
A new and even more powerful tool may be gene drives, which are genetic mechanisms that rapidly propagate a trait through a wild population.
一种新的乃至更加强大的工具或许是基因驱动技术。这种遗传机制可以在野生种群中迅速传播一种性状。
Female turtles have also become smaller on average; bigger individuals have been removed from the wild population and the overall life expectancy of the species has fallen.
雌龟的平均体型变小了；较大的个体已经从野生种群中消失，并且整个物种的预期寿命都已经下降。
The key to save the wild Chinese Alligator is to know the breeding mechanism of the remaining wild population and its survival strategy under such a serious human pressure.
因此，对野生扬子鳄种群繁殖机理和长期存在于高强度人为活动的压力之下的生存对策的研究，是恢复野生扬子鳄种群数量，使其免遭灭绝的关键。
Last week, the first Asian ministerial conference on tiger conservation, in Hua Hin, Thailand, set a goal of doubling the wild population by the start of the next tiger year, in 2022.
亚洲第一届以老虎保护为议题的部长级会议上周在泰国的华欣召开。会上制定的目标是，到2022年，即下一个虎年年初，使野生老虎数量翻倍。
Last week, the first Asian ministerial conference on tiger conservation, in Hua Hin, Thailand, set a goal of doubling the wild population by the start of the next tiger year, in 2022.
亚洲第一届以老虎保护为议题的部长级会议上周在泰国的华欣召开。会上制定的目标是，到2022年，即下一个虎年年初，使野生老虎数量翻倍。
应用推荐