Type:
- Article
Year:
1991
Source:
- Conservation Biology
Category:
- Monarch research, Resource use
Full Reference:
Weiss SB, Rich PM, Murphy DD, Calvert WH, Ehrlich PR. 1991. Forest canopy structure at overwintering monarch butterfly sites - measurements with hemispherical photography. Conservation Biology 5: 165-175.
Online citation:
Study Setting:
- Field
Geographic Focus:
- Western Overwintering