Final answer:
Julian Steward is the anthropologist known for developing the cultural ecology approach, emphasizing the adaptation of humans to their environments and shaping core cultural features.
Step-by-step explanation:
The anthropologist named as a cultural ecologist is Julian Steward, who developed an approach called cultural ecology in the 1950s. This approach recognized the importance of environmental factors and focused on how humans adapt to different environments. Steward highlighted how humans develop core cultural features that enable them to make a living in each environmental zone. A similar thought was presented by Marvin Harris, who developed cultural materialism, which focuses on how technology and economic factors are fundamental to culture and shape other aspects of society such as family life, religion, and politics.