• 结果编制出扁野生种群动态生命

    Results Established movements lifes table of wild Polygonum aviculare population.

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  • 表明,这这些野生种群自我繁殖结果

    This suggests the result of wild populations reproducing on their own.

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  • 较大的个体已经野生种群中消失并且整个物种预期寿命都已经下降

    Bigger individuals have been removed from the wild population and the overall life expectancy of the species has fallen.

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  • 保护工作已经取得了显著成绩野生种群达200多只。

    Crested Ibis protection has gained great achievements that the number of the species has exceeded 200.

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  • 不幸的是,由于它们失去了栖息地,人们对它们的过度捕捞,使这种野生种群数量处于困境。

    Unfortunately, habitat loss and over-harvesting are hurting the wild population numbers.

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  • 平均体型变小了;较大的个体已经野生种群中消失并且整个物种预期寿命都已经下降

    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.

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  • 淡水中心种群、前洲种群野生种群遗传距离分别为0.04210.0809。

    The genetic distances between wild population and two cultured populations were 0.0421 and 0.0809, respectively.

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  • 雌性大熊猫生产至两只幼因此,增大野生种群一个艰难缓慢过程

    A female giant panda produces about one to two cubes biannually, so strengthening the wild population is a difficult and slow process.

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  • 新的乃至更加强大的工具或许基因驱动技术这种遗传机制可以野生种群中迅速传播一种性状

    A new and even more powerful tool may be gene drives, which are genetic mechanisms that rapidly propagate a trait through a wild population.

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  • 几十年来,由于栖息地受到严重破坏以及捕猎等原因,黑野生种群分布范围数量逐渐缩小。

    In the last several decades, due to destruction of habitat and hunting pressure, the distribution range and population size of this muntjac have been continued declining.

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  • 这些连同其它人工养殖动物(其它动物的养殖必须野生种群的保护提供资金)每年该州财政收入贡献达2千万美元。

    These, together with farmed animals (farms must also contribute financially to the wild population) generate $20m in revenue for the state every year.

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  • 但是所属的种群人数众多时,不能整个种群一起追踪野生动物

    But when you have a large population, well, the whole population can't just get up and move to follow a wild herd of animals.

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  • 对此,斯科特表示这种疾病“已经野生的袋獾种群造成非常严重影响科学家们相信眼下段时期内,袋獾不会从塔斯马尼亚的栖息地灭绝

    The disease "is having a very serious impact on the wild population, but at this stage we don't believe that the species is headed for extinction," Scott said.

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  • 知识可持续性草药产品材料采集野生植物种群种植药用植物

    Knowledge and sustainability: Herbal materials for products are collected from wild plant populations and cultivated medicinal plants.

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  • 散落各处野生大熊猫种群质量由于近亲繁殖已经岌岌可危,研究人员希望放归的熊猫可以和这些熊猫融合一起。

    The hope is that pandas can be released into small isolated wild populations that are in danger of being weakened by in-breeding.

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  • 药用植物通过收集野生生物种群栽培植物来提供

    Medicinal plants are supplied through collection from wild populations and cultivation.

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  • 曾有种群居性野生犬科动物——灰狼,已经发生了急剧变化并形成一种独特的动物。

    What was once another one of the wild social canids, the grey wolf, has been altered radically, to the point that it has become its own unique animal.

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  • 来自加拿大研究宣称野生鲑鱼一些种群来说一种威胁

    A study from Canada says fish farms are a threat to some populations of wild salmon.

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  • 1971年世界野生动物联合会西班牙建立一个羚羊保护区之后将其种群分开希望能够提高其存活率

    The World Wildlife Federation set up a Mhorr gazelle reserve in Spain in 1971, but later split the herd in hopes of giving the species a better chance of survival.

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  • 估计,世界现存野生西伯利亚大约 400-500只,最新研究显示种群数量较为稳定。

    There are an estimated 400 to 500 Siberian tigers living in the wild, and recent studies suggest that these numbers are stable.

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  • 楚科奇鱼类野生动物组织未来目标防止阿拉斯加北极熊两个种群进一步减少

    The conservation goal of the Fish and Wildlife Service over the next five years is to prevent further decline of Alaska's two polar bear populations, the southern in Beaufort and in the chukchi.

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  • 他们研究显示如果(海)爆发继续当地野生种群几近消失

    Their research suggests that if these outbreaks continue, local populations of wild pink salmon will all but disappear.

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  • 所以我们认为鸟舍野生的乌鸦发声相似更多是与生俱来的,所以基本上内化乌鸦种群中。

    So we think that their vocalizations that are similar, aviary and wild, are more innate, so basically naturally inside of them.

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  • 野生动物学家种群生态学杂志中报告20世纪最后十年里毛皮猎人捕获越来越少

    Wildlife biologists report in the journal Population Ecology that fur trappers have caught fewer and fewer wolverines over the last decades of the 20th century.

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  • 野生动物学家种群生态学杂志中报告20世纪最后十年里毛皮猎人捕获越来越少

    Wildlife biologists report in the journal Population Ecology that fur trappers have caught fewer and fewer wolverines over the last decades of the 20th century.

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