Biodiversity
Across
- 3. Gigantic fishing nets and long lines of hooks catch non target species, which are thrown overboard dead. These species are called_______.
- 5. Habitat _________: Large, continuous area of habitat is reduced in area and divided into smaller, more scattered, and isolated “habitat islands”; includes roads, logging, agriculture, urban development
- 6. A stand of trees resulting from natural secondary ecological succession.
- 8. Surface fires that go underground and burn partially decayed leaves or peat.
- 10. Rivers or segments of rivers that are readily accessible by road and may have some dams or developments along their shores
- 12. Deliberately Introduced Species that can wipe out some native species, disrupt ecosystems, and cause large economic losses
- 14. This allows destruction of existing wetlands as long as an equal area of the same type of wetland is created or restored.
- 16. Clear-cutting a strip of trees along the contour of the land, with the corridor narrow enough to allow regeneration within a few years. After regeneration, loggers can cut another strip above the first, and so on.
- 17. Rivers or segments of rivers that are relatively inaccessible and untamed and are not permitted to be widened or dammed
- 18. Burn only undergrowth and leaf filter on the forest floor.
Down
- 1. Removing all tree species.
- 2. abbreviation for most important causes of premature extinction
- 4. Overfishing leads to ________ _________, which occurs when it is no longer profitable to continue fishing the affected species.
- 7. Also called Gene banks; preserve genetic information and endangered plant species by storing their seeds in refrigerated, low-humidity environments
- 9. Mature trees in an uneven-aged forest are cut singly or in small groups.
- 11. Rivers or segments of rivers that are free of dams, mostly undeveloped, accessible in only a few places Old growth forest/ An uncut or regenerated forest that has not been seriously disturbed by any humans or natural disasters for at least several hundred years.
- 13. type that is found nowhere else on earth; is especially vulnerable to extinction
- 15. Extremely hot fires that may start on the ground but eventually burn whole trees and leap from treetop to treetop.