Biology I
Ecology Part II Vocabulary
*Ecology Part 2 flashcards are due by Wednesday, September 21st.
*Ecology Part 2 Quiz is Monday, September 26th.
*Ecology Part 2 Test is Thursday, September 29th.
Use the textbook to define the following terms and make flashcards. Some words may not be highlighted or in bold.
1. Habitat pg. 428
2. Ecological niche pg. 428
3. competitive exclusion pg. 429
4. immigration pg. 440
5. Emigration pg. 440
6. Carrying capacity pg. 442
7. Limiting factor pg. 443
8. Population crash pg. 442
9. Primary succession pg. 446
10. Secondary succession pg. 447
11. Dynamic equilibrium- a state of stability in an ecosystem when the populations do not change very much
12. Pioneer species pg. 446
13. Nonrenewable resources pg. 485
14. Renewable resources pg. 485
15. Biodegradable- objects that easily decompose in the environment
16. Algal bloom- an excessive growth of algae due to fertilizer run-off
17. Conservation- preserving and restoring natural habitats
18. Pollution pg. 488
19. Smog pg. 488
20. Global warming pg. 492
21. Ozone layer – a layer in the upper atmosphere that protects the earth’s surface from UV radiation
22. 03 -what the ozone layer is made of, three oxygens
23. CFC’s (chlorofluorocarbons)- a compound used in aerosol cans that destroy the ozone layer
24. Biomagnification pg. 495
25. Introduced/invasive species pg. 500
26. Habitat fragmentation pg. 499
27. Climax community- the final community in an ecosystem once it becomes stable
28. Ponds are never climax communities.
29. Pioneer species are usually lichens.
30. Lichens- algae and fungi living in a symbiotic relationship, helps breakdown rocks into soil
31. Logistic growth- natural population growth that follows an S-shaped pattern
32. Exponential growth- unrestricted population growth that follows a J-shaped pattern
33. Population crash-pg. 442
34. Density dependent factors- limiting factors that depend on the number of organisms in a population; examples: available food, water, habitat
35. Density independent factors - limiting factors that do not depend on the number of organisms in a population; examples: natural disasters or human activities