高度级和基径级分析表明群落内中等大小个体具有保守的生活史策略， 优势种杜鹃为远期衰退种群。
The analysis of height and base area classes of the shrub layer indicated mid-size individuals had conservative life strategies in this community, and R. simsii was a future declining population.
污染物对蛙类生殖腺发育的影响会导致两栖动物种群的衰退。
The influence of pollutants on the frog gonad growth might lead to decline of amphibian animal population.
随着二倍体致死当量的增加，灵敏度指数也升高，种群的衰退速度加快。
The sensitive index would increase and population decline would be speeded up as the increase of lethal equivalents per diploid.
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