GEOG 2EI3 Lecture Notes - Lecture 12: Peregrine Falcon, Bald Eagle, Tropical Vegetation
21 May 2020
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Document Summary
More species are becoming endangered than what is natural. Impacts from modern society cannot be excluded. World"s plants never tested for human potential: 99. 8 percent. Tropical plants is 90% of the world"s food supply. Of the top 150 prescribed drugs in the u. s : 56 percent have ingredients from wild species. Pollination of plants required for: 30% of all food produced. 1. 2% billion per year of loss if bees were loss. Aferintrohtion use in 1970s lead to lack of bees speicies. More than 70% of prairie wetlands drained. Remaining water has been affected by farmlands. Ducks species have decreased because of this. For freshwater species: pollution is 2nd most important cause of danger. Decrease in peregrine falcon and bald eagle. There are (toxic) chemicals found in their eggs. Cities: convention on international trade in endangered species of wild fauna and flora. Ratified by 120 cities : instrumental in restricting trade in certain endangered wildlife species.
