ENVIRSC 2EI3 Lecture Notes - Lecture 14: Canadian Biodiversity Strategy, Peregrine Falcon, Bald Eagle
6 Feb 2017
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Document Summary
More species are becoming endangered than what is natural. Ex: blanding turtle, 100% loss compared to the normal 62-64% Impacts from modern society cannot be excluded. Extinction is a natural process that occurs at certain rates over time: valuing biodiversity: economic values. World"s plants never tested for human potential: 99. 8% Tropical plants are 90% of the world"s food supply. Of top 150 prescribed drugs in us, 56% have ingredients from wild species. Pollination of plants is required for 30% of all food produced, costing 1. 2 billion dollars per year. Fenitrothion use led to the collapse of the berry market in the 1970s: habitat change. More than 70% of prairie wetlands have been drained. Remaining wetlands are affected by farming, including the ducks in wetland ponds, which experienced a 33% decline since 1960s. Southern ontario, southern prairies are more populated. High risk areas are where the habitats have been changed.
