Assertion: monarch's population | /r/HasProperty | vane-wright
Facets:
Source sentences:
text: The existence of white forms within other species of Danaus, such as the Austro-Oriental D. melanippus and all the races of the Wallacean species D. ismare, suggests that nivosus could easily have arisen independently in the widely separated Monarch (Danaus plexippus) populations (Vane-Wright 1986).