1. Microbial Ecology 16.2-
Microbiology

2. 16.3 Marine Habitats Coastal 7% of area, but most life Open Ocean
Pelagic-top layers
Demersal-bottom

3. 16.3 Planktonic Communities
Plankton-base of the food web
Phytoplankton-photoautotrophs
Produce 70% of all O2
Zooplankton-heterotrophs
Bacterioplankton-decomposers

4. 16.3 Demersal Plankton Extremophile Chemosynthetic Microbes
Hydrothermal vents
Cold seeps

5. 16.3 Zooxanthellae Symbiotic Corals Most diverse marine ecosystems
Very sensitive to changes in temperature or pH (bleaching)

6. 16.4 Biogeochemical Cycles
Carbon Cycle
Decomposers
Methanogenesis
Nitrogen Cycle
Nitrogen Fixation
Nitrification
Denitrification
Phosphorus Cycle
Algal bloom
Sulfur Cycle
Iron Cycle

7. 16.5 Microbial Symbiosis Mutualism Commensalism Parasitism
Both benefit
Commensalism
One benefits, other is unharmed
Parasitism
One benefits, other is harmed

8. 16.5 Microbial Symbiosis Ruminant Herbivores
Large herbivores have large capacity many- chambered stomachs which house microbes that can break-down cellulose

9. 16.5 Microbial Symbiosis
Squid-Aliivibrio Symbiosis
Bioluminescence

10. 16.5 Microbial Symbiosis Fungal Symbiosis Mycorrhiza in roots Lichens
Pioneer Species
Insects
Termites & ants

11. 16.5 Microbial Symbiosis
Rhizobia
Legume Roots- Nitrogen fixation

12. 16.6 Microbial Bioremediation
Ore Leaching
Petroleum biodegradation
Water and Soil detoxification