Park naturalists need knowledge in the following areas:

• Customer and Personal Service: Providing special services to customers based on their needs.
• Education and Training: The methods of teaching and learning.
• English Language: The meaning and use of the English language.
• Public Safety and Security: How to protect people and property.
• Biology: Cells, plants, and animals and how they function.
• Communications and Media: How to produce written, spoken or visual media.
• History and Archeology: Past events and the effects on people and cultures.
• Law, Government, and Jurisprudence: Laws, rules of the court, and the politics.
• Geography: How to describe the location, features, and relationships of land, sea, and air.