Citation Impact
Citing Papers
Gene Flow and the Geographic Structure of Natural Populations
1987 StandoutScience
Checkerspot Butterflies: A Historical Perspective
1975 Science
Works of Michael Johnson being referenced
The Population Biology of the Butterfly, Euphydryas editha VII. Has E. editha Evolved a Serpentine Race
1968
THE POPULATION BIOLOGY OF THE BUTTERFLY, EUPHYDRYAS EDITH A VII. HAS E. EDITH A EVOLVED A SERPENTINE RACE?
1968