The decrease in species richness in North America


The species richness map shows historic and current species richness for 17 species that experienced range contractions over more than 20% of their historic range. The change map was created by subtracting the current from the historic species richness map.



Via cof.orst.edu
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Alex E

“Maps are like campfires – everyone gathers around them, because they allow people to understand complex issues at a glance, and find agreement about how to help the land.”