American Naturalist
| Impact factor | SJR | SNIP | |
| 2016 | 4.167 | 2.672 | 1.610 |
| 2015 | 3.148 | 2.867 | 1.330 |
| 2014 | 3.832 | 3.269 | 1.600 |
| 2013 | 4.454 | 3.161 | 1.650 |
| 2012 | 4.552 | 3.427 | 1.660 |
| 2011 | 4.725 | 3.865 | 1.670 |
| 2010 | 4.736 | 4.244 | 1.760 |
| 2009 | 4.796 | 3.971 | 1.760 |
| 2008 | 4.670 | 4.021 | 1.740 |
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