Diagrama do fluxo de energia através de níveis tróficos
<a href="//commons.wikimedia.org/wiki/User:MarceloTeles" title="User:MarceloTeles">MarceloTeles</a>
CC BY-SA 3.0
<a href="//commons.wikimedia.org/wiki/File:EnergyFlowTransformity.jpg" title="File:EnergyFlowTransformity.jpg">File:EnergyFlowTransformity.jpg</a> by <a href="//commons.wikimedia.org/wiki/User:Thompsma" title="User:Thompsma">Thompsma</a> (Mark David Thompson)