What type of map would most likely be used to depict grizzly bear population density in glacier national park?

Thematic map  

A thematic map is a type of map that gives importance to a particular topic or data set such as rainfall. It shows the population (distribution) of a particular elements or organisms that relates to a certain theme or geographical aspect. There are different types of thematic maps which include; choropleth map, proportional symbols, dot map and isarithmic map.

Thematic map would most likely be used to depict grizzly bear population density in Glacier National Park because thematic map shows population.