Humans in the Biosphere Chapter 6 - PDF
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This document explores humans' interactions with the biosphere, using the Hawaiian Islands as a case study. It examines the introduction of invasive species and the impact of resource extraction, as well as important sustainable practices and ozone depletion.
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Chapter 6 Humans in the Biosphere Hawaiian Islands- Case Study 1778 explorer Captain James Cook discovered Oahu and later landed on Big Island European contact brought contagious diseases such as cholera, measles, and gonorrhea 🠶 Ships from Europe also brought 3 species of rats that were invasive...
Chapter 6 Humans in the Biosphere Hawaiian Islands- Case Study 1778 explorer Captain James Cook discovered Oahu and later landed on Big Island European contact brought contagious diseases such as cholera, measles, and gonorrhea 🠶 Ships from Europe also brought 3 species of rats that were invasive to Hawaii 🠶 Cats were later brought to control the rats, but it didn’t work 🠶 Mongooses were later brought to control the rats but they were predators to native bird species Farms in Hawaii 🠶 Much land has been cleared for farming pineapple and sugarcane Sustainable Use Practice 🠶 Practices that do not harm the environment 🠶 Example- use ladybugs to eat aphids instead of use pesticides Ozone Depletion 🠶 Chlorofluorocarbon (CFCs) from coolants and foam enter the atmosphere and degrade ozone molecules 🠶 Ozone plays an important role in blocking UV radiation from reaching Earth 🠶 Excess UV radiation leads to sunburns and cancer Ozone Depletion
