在2003年发表的一份报告中，帕尔梅桑教授推断有一半的物种早就开始改变自身的行为或转移它们的活动范围以适应全球气温升高。
In a paper published in 2003, Professor Parmesan concluded that half of all species were already altering their behaviour or shifting their range in response to global warming.
也许，蝴蝶生物学家卡米尔·帕尔·梅桑的研究和建议在美国境内有足够的依据，适合美国动物保护的实际。
It may be the case that the research and advice of the butterfly biologist Camille Parmesan has sufficient basis in America to make it suitable for the reality of American animal conservation.
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