G. Lewis

Changes in stream chemistry associated with insect defoliation in an old-growth hemlock-hardwood forest
Lewis, G. P., and Gene E. Likens. 2007. “Changes in Stream Chemistry Associated With Insect Defoliation in an Old-Growth Hemlock-Hardwood Forest”. For. Ecol. Manage. 238: 199-211.
Low stream nitrate concentrations associated with oak forests on the Allegheny High Plateau of Pennsylvania
Lewis, G. P., and Gene E. Likens. 2000. “Low Stream Nitrate Concentrations Associated With Oak Forests on the Allegheny High Plateau of Pennsylvania”. Water Resour. Res. 36: 3091-94.
Response of stream chemistry to forest insect defoliation on the Allegheny high plateau, Pennsylvania
Lewis, G. P. 1998. “Response of Stream Chemistry to Forest Insect Defoliation on the Allegheny High Plateau, Pennsylvania”. New York, Cornell University.