PPT-Chapter 11 Sustaining Aquatic Biodiversity

Case Study Protecting Whales A Success Story So Far 1 Cetaceans Toothed whales and baleen whales 8 of 11 major species hunted to commercial extinction by 1975 1946 International Whaling Commission IWC. Petritz Director that all persons shall have equal opportunity and access to the programs and facilities without regard to race color sex religion national origin age marital status parental status sexual orientation or disability Purdue University To overcome this constraint Andean people have always had to be strategic to ensure that they have enough food and enough of the right kinds of food Instead of fighting the restrictions that their location and climate impose on food production they From Biodiversity . to Ecotoxicology. Professor John O’Halloran. School of Biological, Earth & Environmental Sciences . &. Environmental Research Institute. 1. The value of forest ecosystems. Sustaining Aquatic Biodiversity. Core Case Study: A Biological Roller Coaster Ride in Lake Victoria. Lake Victoria has lost their endemic fish species to large introduced predatory fish.. Figure 12-1. Win . Maung. Chairman. Myanmar Environment Institute (MEI). To . protect . ecosystem services, biodiversity conservation is . essential. -(. supporting services. —e.g. nutrient cycling, soil formation, primary production; . Organisms and Niches. Estuaries. Definition. A partially enclosed area of coastal water where sea water mixes with freshwater.. Salt Marshes. The ground here is saturated with water and there is little oxygen, so decay takes place slowly. It has a surface inlet and outlet, and contains many invertebrates. It is also the breeding ground for many ocean animals. Ex. crabs and shellfish.. The Nile Perch. Core Case Study: A Biological Roller Coaster Ride in Lake Victoria. Loss of biodiversity and cichlids. Nile perch: deliberately introduced. Frequent algal blooms. Nutrient runoff. Spills of untreated sewage. The Nile Perch. Core Case Study: A Biological Roller Coaster Ride in Lake Victoria. Loss of biodiversity and cichlids. Nile perch: deliberately introduced. Frequent algal blooms. Nutrient runoff. Spills of untreated sewage. Miller and . Spoolman. (2010). Core Why Should We Care about Coral Reefs?. Coral reefs. form in clear, warm coastal waters of the tropics and subtropics.. Among the oldest, most diverse, and most productive ecosystems.. Coral reefs form in clear, warm coastal waters in tropical areas. Tiny animals (polyps) and algae have a mutualistic relationship. Polyps secrete calcium carbonate shells, which become coral reefs. Core Case Study: Why Should We Care about Coral Reefs?. Jason . Zheng. 8-1: What is the General Nature of Aquatic Systems. The Earth is made mainly of Water.. Saltwater covers around 71% of the earth’s surface.. Freshwater occupies only about 2.2%. Global Ocean: is a single and continuous body of water, geographers divide it into four large areas- Atlantic, Pacific, Arctic, and Indian.. All seven species in danger through:. Trawler fishing. Destroyed many coral gardens that are turtle feeding grounds. Turtles hunted for leather. Eggs taken for food. Pollution of ocean water. Case Study: The Plight of Sea Turtles. The Species Approach. Core Case Study: Polar Bears and . Global Warming. Polar Bears. 20,000-25,000 . in the . Arctic. Most calories in winter from seals on sea . ice. Environmental impact on polar bears. The Ecosystem Approach. Individuals Matter: Wangari Maathari and Kenya. ’. s Green Belt Movement . Green Belt Movement: 1977. Self-help group of women in Kenya. Success of tree planting. 50,000 members planted 40 million trees.