Chapter 8: Aquatic Biodiversity
|
Section 1: What is the General Nature of Aquatic Ecosystems?
Concept 8-1A: Saltwater and freshwater aquatic life zones cover almost three-fourths of the earth's surface, with oceans dominating the planet. Concept 8-1B: The key factors determining biodiversity in aquatic systems are temperature, dissolved oxygen content, availability of food, and access to light and nutrients necessary for photosynthesis. Section 2: Why Are Marine Ecosystems Important?
Concept 8-2: Saltwater ecosystems provide major ecosystem and economic services and are irreplaceable reservoirs of biodiversity. |
Section 3: How Have Human Activities Affected Marine Ecosystems?
Concept 8-3: Human activities threaten aquatic biodiversity and disrupt ecosystem and economic services provided by saltwater systems. Section 4: Why Are Freshwater Ecosystems Important?
Concept 8-4: Freshwater ecosystems provide major ecosystem and economic services, and they are irreplaceable reservoirs of biodiversity. Section 5: How Have Human Activities Affected Freshwater Ecosystems?
Concept 8-5: Human activities threaten biodiversity and disrupt ecosystem and economic services provided by freshwater lakes, rivers, and streams. |
Files:
|
| ||||||
Key Terms:
|
|