BIOL 111 Lecture 6: 6.2 HIPPO15
Document Summary
Learning outcomes: explain how hippo factors contribute to population changes. Readings: read about daniel pauly and overfishing linked on the week 6 module. Also watch the linked eo wilson ted talk. Nitrogen is contained in all living things: proteins, dna and rna. Nitrogen must be fixed into nitrate (no3 (nh4+) to be used by plants: n fixation occurs in the soil by bacteria (sometimes in symbiotic association with certain plant roots, ammonium can be assimilated or converted into nitrite. ) by bacteria can be assimilated by plants through their roots: no3. Dead eutrophic zones can occur along coastal areas, in estuaries (where rivers drain into large bodies of water) and in lakes. Questions to solve this: what has caused the high concentration of decomposers? (what do they feed on?) You need to answer all these questions and put the answers all together to understand how eutrophication works.
