The line transect methods are widely used in wildlife population census.

样线法是野生动物种群数量调查的常用方法之一。

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The World Wildlife Fund says more than half of the world's wildlife population has been lost.

世界自然基金会表示，全球野生动物数量减少了一半以上。

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The objective of wildlife management is to maintain the wildlife population appropriate in nature reserves.

针对我国自然保护区的现况，提出了野生动物管理的策略要点。

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And the waste produced by the islands' growing human population places an increased threat on the wildlife.

VOA: special.2009.12.16

The islands, lying between the Antarctic and Subtropical Convergences and the seas, have a high level of productivity, biodiversity, wildlife population densities and endemism among birds, plants and invertebrates.

UNESCO: Culture

In the wild, it is the most widespread species of gorilla, according to the World Wildlife Fund (WWF), with a estimated population of 100-200, 000 individuals.

CNN: First gorilla genome map offers clues to human evolution

To appease opponents of the program, the wildlife service designated the wolves as an "experimental" population, which meant they could be hunted if they became a menace to livestock.

CNN: Orders transplanted animals removed