Higher incidence rate and higher population of men.
Highest incidence rate and highest population of mosquitoes.
You illustrated that as the number of them goes up so does the number of casualties, so in order to fairly compare men and bears or men and mosquitoes you need to include that incidence per populations and/or per interactions in your comparison.
Low incidence rate and low population of bears.
Higher incidence rate and higher population of men.
Highest incidence rate and highest population of mosquitoes.
You illustrated that as the number of them goes up so does the number of casualties, so in order to fairly compare men and bears or men and mosquitoes you need to include that incidence per populations and/or per interactions in your comparison.