3 Biodiversity Species diversity Genetic diversity Species richness Species evennessHow do you study these factors?Are they equally important?Genetic diversityAffects a populations ability to adapt when faced with environmental change.
4 Benefits of Biodiversity Why is your quality of life impacted by the extinction of species?
5 Environmental Issues Pollution Smog Ozone thinning Global warming Nitrogen oxides, sulfur oxides, organics, ozoneOzone thinningCFC’s deplete ozoneCould lead to new cases of skin cancerGlobal warmingA complex issue.
6 Ozone Layer What is it? Why is it important? What factors seems to affect the ozone layer?
12 Ecosystem imbalancesSome species are critical to the functioning of ecosystems.These species are called keystone species.Ever built the arch at the Science Center?Can the arch stand without the keystone?
13 Keystone speciesPrairie Dogs have long been vilified by ranchers and others who believe that they damage the range and take valuable forage away from cattle and other livestock. In fact, prairie dogs are what is known as a keystone species, a species whose very presence contributes to the diversity of life and whose extinction would result in the extinction of species dependent on it.
14 The grazing and burrowing activities of prairie dogs improve forage quality, conserve water and improve soil
15 Human Resource UseHuman’s use 55% of the primary production of the EarthEcological footprint: human impact on ecosystemsSustainability: the ability to meet human needs in such a way that a human population can survive indefinitely. (what is the Earth’s Carrying Capacity?)
16 Environmental Solutions Conservation Biology: identify, protect and manage areas that still have biodiversity.Restoration Biology: repair damaged ecosystems (have you seen the “Prairie Restoration” signs on the highway?)
17 Species and HabitatsBioindicators: species that are very sensitive to environmental change.Ex. Amphibians,
18 Whooping Crane In 1935 only about 15 individuals left. 2011 census indicates around 600 individuals.Is this a conservation success story?
19 Protecting Ecosystems Biodiversity HotspotsRegions richest in biodiversity but in need of protection.
20 Governments and Laws: protect endangered species, set aside land to protect habitats, clean up pollution, regulate destructive activities such as mining.Ecotourism: a way for developing countries to protect their biodiversity.