She is noted for discovering, with her then-husband Kenneth C . Brugger, the location of the overwintering sites of the Monarch butterfly, " Danaus plexippus"
12.
Here the population of white morphs of the " Danaus plexippus " butterfly have risen over a period of 20 years due to predation of the orange morphs by these bulbuls.
13.
The tropical monarch, Danaus plexippus, evolved to migrate northward to take advantage of a vast resource : the milkweed on which its caterpillar feeds, and which imparts a foul-tasting poison to birds, the theory goes.
14.
The "'Monarch butterfly "'( " Danaus plexippus " ) is a milkweed butterfly and perhaps the best known of all North American butterflies ( though it sometimes wanders to Oceania and Europe ).
15.
Diapause may occur in a completely immobile stage, such as the pupae and eggs, or it may occur in very active stages that undergo extensive migrations, such as the adult Monarch butterfly, " Danaus plexippus ".
16.
These toxic species, such as the cinnabar moth ( " Tyria jacobaeae " ) and monarch ( " Danaus plexippus " ) caterpillars, usually advertise themselves with the danger colors of red, yellow and black, often in bright stripes ( see aposematism ).
17.
""'Flight of the Butterflies " "'is a 2012 Dr . Fred Urquhart's nearly 40-year-long scientific investigation into the monarch butterfly " ( Danaus plexippus ), " tracking the details of what is considered one of the longest known insect migrations : the flight of the monarch butterfly from Central Mexico to the United States and Canada and back.
