Category Nuances for biogeography:

• complementary,
• single,
• biological,
• scientific,
• appropriate,
• cognate,
• major,
• basic,
• observational,
• environmental,
• theoretical,
• related,
• logical,
• evolutionary,
• social,
• ecological,
• systematic,

Simple Categories for biogeography:

• field,
• biology,
• discipline,
• topic,
• science,
• issue,