We can get an idea of changes in the size of a typical population of another species by looking at the Living Planet Index. Here is a plot of the data (in red), along with my own projection of it (in blue).

 

 

 

© Copyright 2011 Bradley Jarvis. All rights reserved.

 

 

 

 

 

 

 

 

© Copyright 2011 Bradley Jarvis. All rights reserved.

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