Across
- 3. refers generally to the human harvesting of wild organisms at rates exceeding the ability of populations of those species to rebound.
- 4. the amount of added nutrient, usually nitrogen or phosphorus that can be absorbed by plants without damaging ecosystem integrity.
- 6. on that is "in danger of extinction throughout all or a significant portion of its range.
- 7. services encompass all the processes through which natural ecosystems purify our air and water.
- 12. defined as the variety of different habitats, communities and ecological processes.
- 13. biodiversity islands in a sea of habitat degraded by human activity.
- 19. an organic molecule that consists of nothing else but carbon and hydrogen atoms.
- 20. a result of large amounts of nutrients being released into a nutrient deficient water body which leads to excessive amounts of aquatic plant growth
- 22. a narrow strip or series of small clumps of habitat connecting otherwise isolated patches can be extremely important for conserving biodiversity.
- 23. the fourth threat to biodiversity, global change, alters the fabric of Earth's ecosystems at regional to global scales.
- 24. those that humans move internationally or accidentally from the species native locations to new geographical regions.
- 25. economic development that meets the needs of people today without limiting the ability pf future generations to meet their needs.
- 26. a relatively small area with numerous endemic species and a large number of endangered and threatened species.
Down
- 1. number of individuals in an idealized population that experience drift at the same rate as the population understudy.
- 2. the range of different inherited traits within a species.
- 5. the translocation of a species to a favorable habitat beyond its native range to protect the species from human-caused threats.
- 8. a treatment, procedure, or other action taken to prevent the loss of a species or population before its too late and extinction occurs.
- 9. integrates ecology, physiology, molecular biology, genetics, and evolutionary biology to conserve biological diversity at all levels.
- 10. an extensive region that includes areas relatively undisturbed by humans surrounded by areas that have been changed by human activity and are used for economic gain.
- 11. warming that results when solar radiation is trapped by the atmosphere.
- 14. alteration or destruction of a habitat, some examples being agriculture, urban development, forestry, mining, and pollution.
- 15. are those that are considered likely to become endangered in the near future.
- 16. the minimal population size at which a species is able to sustain its numbers. Hint: known as (MVP).
- 17. a phenomenon that occurs because the biomass at any given trophic level is produced from a much larger biomass ingested from the level below.
- 18. the variety of life in the world or in a particular habitat or ecosystem.
- 21. a small population is vunerable to inbreeding and genetic drift, which draw the population down to an ________, toward smaller and smaller population size until no individuals survive.