Sharnoff Photos
Home Page
Air Quality Study with Lichens
Go to: Flying Squirrel Nests and Boreal Owls
Back to: Biological Field Research Index
Sharnoff Photos Home Page |
Air Quality Study with Lichens Back to: Biological Field Research Index |
|
| These photos were taken in 1990 and a bit later, in coastal Alaska, on a number of USDA Forest Service research plots where biologists Linda Geiser and Chiska Derr were establishing baseline studies of lichen diversity. Lichens are used to study air-quality because different species have different responses to pollutants, so mapping the lichens in an area can give a detailed picture of what chemicals are in the air. These photos are model-released. |
Image 1. Boarding a float plane
Image 2. Linda Geiser and Chiska Derr in a muskeg in Southeast Alaska,
Image 3. Looking at lichens in a study plot
Image 4. Chiska Derr and Linda Geiser examining lichens Image 5. Linda Geiser examines the lichens on a muskeg tree
Image 6. Linda Geiser and Chiska Derr examining lichens
Image 7. Chiska Derr taking notes in a coastal forest. The rifle is required by the Forest Service in case of an encounter with a grizzly bear.
Image 8. Chiska Derr collecting lichens
Image 9. Chiska Derr and a helper tagging a tree in a study plot
Image 10. Linda Geiser measuring the diameter of a tree in a study plot
Image 11. Chiska Derr collecting lichens in a forest
Image 12. Chiska Derr collecting lichens in a coastal tundra study plot |
Sharnoff Photos Home Page |
Go to: Flying Squirrel Nests and Boreal Owls Back to: Biological Field Research Index |
|
