Category Nuances for biogeography:

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

Simple Categories for biogeography:

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