EE BIOL 116 Lecture Notes - Lecture 6: Elephant Hunting In Chad, Keystone Species, Beta Diversity

• School: UCLA
• Department: Ecology and Evolutionary Biology
• Course: EE BIOL 116
• Professor: Rundel, P.W.Wayne, R.

Document Summary

Arguing now a great, extreme source of conservation and to spend resources. A threshold loss of amount of species catastrophic. 40/45,000 ft elevation with glaciers on them; despite being close to equator. Lauca national park altiplano of northern chile. Some communities have relatively low species richness despite population sizes. Even seemingly low diversity ecosystems can be home to huge number of organisms (desert: biodiversity and ecosystem stability. Hydrologic flow: runoff, infiltration, transpiration deforestation the rainfall drops: regulation of sediment transfer vegetation, biogeochemical cycles of nitrogen. Process of ammonia, to nitrite to nitrate, all process are regulated by bacteria; human activities have a marked effect with environmental consequences: organic matter and carbon cycles. Increased heating from carbon dioxide and methane; 10x more effective in greenhouse effect. Erosion control, streambank protection, and dune stabilization. Huge mudflows that can clog everything, can go up to the roof of a house.