BIOL 2200 Lecture Notes - Waste Treatment, Erosion Control, Species Richness
Document Summary
The human population has increased rapidly since the development of technology and it continues to rise. Extinction the end of an organism or a species that will never be recovered. Extirpation the cease of existence of a species in a geographic area. Self-interest things in which we are interested in from the use of resources of the environment: We see the environment as a service to us: Ex: grasslands: carbon storage, water regulation, water filtration, erosion control, soil formation, waste treatment, pollination, pest control. A lower amount of plant species with richness before the drought had more biomass remaining after the drought. Higher species richness = more biomass retained after the drought. Figure 26. 7 (the second graph) the higher the functional diversity the more plant biomass there was. Mass extinctions are high numbers of species dying off due to natural catastrophes.
