生态学者

例句：

1. 1. Ecological studies are crucial for understanding the impact of human activities on the environment.
   生态学研究对于理解人类活动对环境的影响至关重要。
2. 2. The ecologist has conducted research on the effects of pollution on wildlife.
   这位生态学家进行了关于污染对野生动物影响的研究。
3. 3. The environmentalist believes in preserving natural habitats to protect endangered species.
   环保主义者相信保护自然栖息地以保护濒危物种。