Distinguishing between ecological and non-ecological speciation involves identification of specific species traits. Environmental interactions, for example, could consist of adaptations specific to foraging or a unique environment whereas compatibility in reproduction involves mate-recognition morphology, communication systems, or other behaviors. Ecological speciation necessitates changes in both whereas non-ecological speciation only changes compatibility in reproduction. Diagram adapted from Czekanski-Moir &amp; Rundell (2009).<sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup>
<a href="//commons.wikimedia.org/wiki/User:Azcolvin429" title="User:Azcolvin429">Andrew Z. Colvin</a>
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