Unit 4 Succession and Forestry

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Across
  1. 1. (2words) PA state tree and dominant old growth tree
  2. 3. (2words) Organisms who's presence helps you know a healthy ecosystem
  3. 5. large opening in a snag for bigger animals like raccoons
  4. 7. aquatic indicator species
  5. 9. concerned with protecting the environment against logging
  6. 10. succession that starts from bare rock
  7. 12. planting only one type of tree= not good!
  8. 17. (2words) forest never disturbed by humans
  9. 18. colonizes rocks during primary succession
  10. 19. habitat created by open areas, provides cover for deer and roughed grouse
  11. 20. food coming from small trees and shrubs
  12. 23. dead tree that is still standing
  13. 24. food such as seeds, nuts, berries and acorns coming from mature trees
  14. 25. (2words) provides a base and nutrients for saplings
  15. 27. (3words) area of the US with the most amount of old growth forest left
  16. 30. (2words) creates edge in forest ecosystems, stopping point for forest fires
Down
  1. 2. (2 words) Multiple Use Management used here
  2. 4. term for variety of plant and animal species in an ecosystem
  3. 6. (2words) devastating to forests, destroys habitats and soils
  4. 8. (2words) used for preservation and recreation only
  5. 11. succession where soil is at least present
  6. 12. (3words) federal law that applies to national forest allowing for grazing, logging, mining etc.
  7. 13. (2words) indicator species and endangered bird in the PNW old growth forests
  8. 14. (2words) first organisms to show up
  9. 15. cuts down trees for money
  10. 16. (2words) helps prevent diseases, wildfires and returns nutrients to soils
  11. 21. (2words) most common old growth tree in the Pacific Northwest
  12. 22. roof of forest
  13. 26. (2words) different patches, successional stages and ages of trees
  14. 28. partly decayed plant matter that provides nutrients for the soil
  15. 29. creates holes in tress for cavity nesters