ecology

He majored in ecology.

他主修生态学。

"Only a small percentage of alien species cause problems in their new habitats,'' said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.

“只有一小部分外来物种会在它们的新栖息地引发问题。”田纳西大学生态学和进化生物学教授唐·史密斯说。

Oil pollution could damage the fragile ecology of the coral reefs.

石油污染可能破坏珊瑚礁脆弱的生态环境。

It was in the 1970's, with strong government support through tax incentives and rapid depreciation, as well as growing interest in ecology issues, that recycling became a major factor on the urban scene.

到了20世纪70年代，在政府对税收优惠和快速折旧的有力支持下，以及对生态问题日益增长的兴趣，回收成为城市景观的一个主要因素。

He was motivated by the radical ecology movement.

他受到激进的生态保护运动的鼓舞。