BSC 3052 Lecture Notes - Lecture 3: Endangered Species Act Of 1973
Document Summary
How many species are there: rough esimate of between 10 million and 100 million, dominated by bacteria, roundworms, insects, and mites. Undescribed species: major issue ignorance is always barrier to conservaion. Mainly found in tropics: mostly invertebrates (insects, bacteria), although many well- known groups (birds, mammals) produce new species every year, limited taxonomic work exacerbates the problem. Short comings of red list approach (discussion: lack of info, only what people tell them, don"t understand much about life history, doesn"t really talk about ecosystems, soluions. Iucn red list: not policy based (not law) Nixon signed endangered species act into law in 1973: endangered species act. Instrumental values of species: assigning value to species based upon human needs or wants, economic values. Services: spiritual values, scieniic and educaional values, ecological values, strategic values. Realized vs. potenial (instrumental) value: ignorance is not bliss, potenial is unknown for most species, diicult problem to deal with essenial requires a save em" all approach.
