TY  - RPRT
TI  - The effect of canopy cover and seasonal change on host plant quality for the endangered Karner blue butterfly (Lycaeidesmelissasamuelis)
AU  - Ralph Grundel
AU  - Noel B. Pavlovic
AU  - Christina L. Sulzman
PY  - 1998
DO  - 10.1007/s004420050442
UR  - https://pubs.usgs.gov/publication/1000773
ID  - 1000773
ER  -