Subject
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Host plants
1
Hybridization
1
INFECTIONS
1
Ice storms
1
Incense cedar
1
Insect-plant relationships
1
Invasive species
1
Jack pine
1
Karst
1
Land classification
1
Land management
1
Land ownership
1
Landscape architecture
1
Landscape conservation
1
Landscape protection
1
Legislation
1
Livestock
1
Livestock feeding
1
Lumber
1
Mammals
1
Maple syrup industry
1
Maples
1
Markets
1
Measurement
1
Methodology
1
Migration
1
OLD GROWTH
1
Oak
1
Old growth forests
1
Oleoresins
1
Organic materials
1
Owls
1
Paleoecology
1
Paleontology
1
Permits
1
Pine
1
Pleistocene
1
Policy
1
Pollen
1
Pollination
1
Poplar
1
Prevention and control
1
Public lands
1
Pulp and Paper
1
Quality
1
Rating systems
1
Recycling
1
Red pine
1
Reforestation
1
Regulations
1
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