Relationship of number of food-plant species recorded per bumblebee species to number of bee records per bumblebee species.

Abstract

<p>For species of the subgenera <i>Megabombus</i> (black spots), <i>Pyrobombus</i> (triangles), <i>Melanobombus</i> (circles), and <i>Bombus s</i>. <i>str</i>. (squares). Species with few food-plant-species records relative to the number of bee records are interpreted as more specialised in their fewer food-plant choices (Data from North China [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0132358#pone.0132358.ref014" target="_blank">14</a>]).</p