- 生态学家 shēngtàixuéjiā ecologistspecialist in ecology; environmentalist
- 动物生态学 dòngwùshēngtàixué animal ecologyThe branch of biology that studies the relationships between animals and their environments; also called zooecology
- 环境生态学 huánjìngshēngtàixué environmental ecologyThe study of the relationships between organisms and their environment, specifically the impact of environmental factors on ecological systems; environmental ecology