Saturation of a biotope is of special interest to the ecologist . 生境小区的饱和对生态学家是特别有意义的。
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The ecologists say that is a very productive kind of waterfront . 生态学家们认为那儿是一块非常丰饶的滨水区。
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The ecologist warned us that petroleum was not merely a blessing but also a curse 那个生态学家警告我们，石油不只是福，它也是灾祸。
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In order to understand the nature of the ecologist ' s investigation ， we may think of the density - dependent effects on growth parameters as the “ signal ” ecologists are trying to isolate andinterpret ， one that tends to make the population increase from relatively low values or decrease from relatively high ones ， while the density - independent effects act to produce “ noise ” in the population dynamics 为了能理解生态学家们所从事的研究的性质，我们可以把那些作用于增长参数的密度依赖效应视作生态学家们力图将其分离并予以解释的“信号” ，正是这一信号倾向于使种群从相对较低的数值递增，或从相对较高的数值递减；而与此同时，那些密度独立效应起到的作用则构成了种群动态变化中的“噪音” 。
