Open or close the search fields display
87702 Studies found for: (NOT NOTEXT) [CITATIONS]
A similar map is available for all studies in
Click on the map below to show a more detailed map (when available) or search for studies (when map not available).
Map Legend
Region Name   Number of Studies
World 87,702  
Africa   [map]   3,240  
Central America   [map]   1,260  
East Asia   [map]   8,431  
Japan 1,463   [studies]
Europe   [map]   26,961  
Middle East   [map]   3,668  
North America 39,625  
Canada   [map]   7,029   [studies]
Greenland 1   [studies]
Mexico 1,446   [studies]
United States   [map]   35,354   [studies]
North Asia   [map]   1,932  
Pacifica   [map]   2,693  
South America   [map]   3,945  
South Asia   [map]   1,688  
Southeast Asia   [map]   2,240  

Click on a [map] link to show a map of that region.

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

Studies with no locations are not included in the counts or on the map.

Studies with multiple locations are included in each region containing locations.