Island Biogeography

1. Organism whose presence or absence reflects the health of an environment.
3. Conditions where a species cannot survive at all.
6. The set of conditions where a species performs best.
8. The role and position a species has in its environment, including its behavior and interactions.
9. The actual conditions a species occupies due to competition or other limitations.
10. Study of species distribution on islands, affected by size and distance from the mainland.
12. Graph showing the relationship between habitat size and number of species supported.
14. Environmental changes and species interactions at the boundaries of ecosystems.
16. Environmental conditions where a species survives, but experiences reduced growth or reproduction.

2. The spectrum of environmental conditions a species can endure.
4. Species that shape ecosystems by creating or modifying habitat.
5. Species with broad niches that can thrive in many environments.
7. A species with a critical role that greatly affects ecosystem structure and function.
11. Species with narrow niches and specific habitat or resource needs.
13. A species’ ability to survive environmental changes and stressors.
15. The full range of environmental conditions a species could theoretically use.