1. Use of lipid reserves by monarch butterflies (Danaus plexippus L.) overwintering in Mexico: implications for conservation;Alonso-Mejia;Ecol. Appl,1997
2. Notes on shifting distribution patterns and survival of immature Danaus plexippus (Lepidoptera: Danaidae) on the food plant Asclepias syriaca;Borkin;Great Lakes Entomol,1982
3. Characteristics of fall migratory monarch butterflies, Danaus plexippus, in Minnesota and Texas;Borland,2004
4. Patterns in the spatial and temporal use of Texas milkweeds (Asclepiadaceae) by the monarch butterfly (Danaus plexippus L.) during fall, 1996;Calvert;J. Lepid. Soc,1999