Why is biodiversity important

Information about Why is biodiversity important

Published on April 7, 2008

Author: fazil

Source: authorstream.com

Content

Why is Biodiversity Important? Presentation Working version, December 2003 prepared by M.F. Laverty and E.J. Sterling Reproduction of this material is authorized by the recipient institution for non-profit/non-commercial educational use and distribution to students enrolled in course work at the institution. Distribution may be made by photocopying or via the institution's intranet restricted to enrolled students. Recipient agrees not to make commercial use, such as, without limitation, in publications distributed by a commercial publisher, without the prior express written consent of AMNH. All reproduction or distribution must provide full citation of the original work and provide a copyright notice as follows: "Copyright 2003, by the authors of the material, with license for use granted to the Center for Biodiversity and Conservation of the American Museum of Natural History. All rights reserved." This material is based on work supported by the National Science Foundation under the Course, Curriculum and Laboratory Improvement program (NSF 0127506), and the United States Fish and Wildlife Service (Grant Agreement No. 98210-1-G017). Any opinions, findings and conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the American Museum of Natural History, the National Science Foundation, or the United States Fish and Wildlife Service. :  Why is Biodiversity Important? Presentation Working version, December 2003 prepared by M.F. Laverty and E.J. Sterling Reproduction of this material is authorized by the recipient institution for non-profit/non-commercial educational use and distribution to students enrolled in course work at the institution. Distribution may be made by photocopying or via the institution's intranet restricted to enrolled students. Recipient agrees not to make commercial use, such as, without limitation, in publications distributed by a commercial publisher, without the prior express written consent of AMNH. All reproduction or distribution must provide full citation of the original work and provide a copyright notice as follows: "Copyright 2003, by the authors of the material, with license for use granted to the Center for Biodiversity and Conservation of the American Museum of Natural History. All rights reserved." This material is based on work supported by the National Science Foundation under the Course, Curriculum and Laboratory Improvement program (NSF 0127506), and the United States Fish and Wildlife Service (Grant Agreement No. 98210-1-G017). Any opinions, findings and conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the American Museum of Natural History, the National Science Foundation, or the United States Fish and Wildlife Service. Why is Biodiversity Important?:  Why is Biodiversity Important? Values are Subjective: Perspectives and Scales:  Values are Subjective: Perspectives and Scales Land developer Government agency Local communities Oil company Aquaculture company Environmental group The Value of Biodiversity :  The Value of Biodiversity Intrinsic/inherent value Extrinsic/utilitarian/ instrumental value Intrinsic/inherent value :  Intrinsic/inherent value The value of something independent of its value to anyone or anything else A philosophical concept Categorizing Values:  Categorizing Values Direct Use Value: Goods:  Direct Use Value: Goods Food Building Materials Fuel Paper Products Fiber (clothing, textiles) Industrial products (waxes, rubber, oils) Medicine Food:  Food Today, most people rely on ~20 types of plants, and only 3 to 4 are staple crops. Diversity is critical for developing new strains and breeds, i.e. that suit a particular environment or are resistant to pests or disease and as a source of new crops Building Materials, Paper Products, and Fuel:  Building Materials, Paper Products, and Fuel Fiber:  Fiber Source: USDA Photo b Ken Hammond  Source: USDA Cotton Program Industrial Products:  Industrial Products Medicine:  Medicine About 80% of the people in developing countries use plants as a primary source of medicine. 57% of the 150 most-prescribed drugs have their origins in biodiversity Traditional Medicine:Basis of Many Drugs :  Traditional Medicine:Basis of Many Drugs Indirect Use Values: Services :  Indirect Use Values: Services Regulating global processes, such as atmosphere and climate Soil and water conservation Nutrient cycling Pollination and seed dispersal Control of agricultural pests Genetic library Inspiration and information Scientific and educational Tourism and recreation Cultural, spiritual, and aesthetic Community Resilience Strategic Global Processes: Atmospheric Regulation:  Global Processes: Atmospheric Regulation Photosynthetic biodiversity created an oxygenated atmosphere, and also has the potential to moderate the rising amounts of atmospheric carbon dioxide linked to global climate change Global Processes: Climate Regulation:  Global Processes: Climate Regulation Forests and other vegetation modify climate: by affecting sun reflectance, water vapor release, wind patterns and moisture loss. Forests help maintain a humid environment, for example, half of all rainfall in Amazon basin is produced locally from forest-atmosphere cycle Soil and Water Conservation:  Filters excess nutrients and traps sediments that would otherwise impact neighboring marine and aquatic areas Other services: Minimizes damage from waves and floods Serves as a nursery for juvenile commercial fish Provides habitat for many birds, fish, and shellfish Soil and Water Conservation Example: Coastal wetlands and mangroves Nutrient Cycling:  Nutrient Cycling Biodiversity is critical to nutrient cycling and soil renewal Decomposers such as algae, fungi, and bacteria Pollination and Seed Dispersal:  Pollination and Seed Dispersal Many flowering plants depend on animals for pollination to produce food. 30% of human crops depend on free services of pollinators; replacement value estimated billions of dollars/year in US alone Source: Spector© AMNH-CBC Source of Inspiration or Information:  Source of Inspiration or Information Biomimicry Applied Biology Medical Models Education and Scientific Research Medical Models:  Medical Models Hibernating bears may improve the treatment of: trauma patients kidney disease osteoporosis Spiritual and Cultural Values:  Spiritual and Cultural Values The survival of natural areas and species are important to different cultures around the world. Thousands of cultural groups in the world, each have distinct traditions and knowledge for relating to natural world Aesthetic Value :  Aesthetic Value Ecological Value: Does Diversity Make Communities More Resilient?:  Ecological Value: Does Diversity Make Communities More Resilient? Resilient ecosystems are characterized by: Constancy (Lack of fluctuation) Inertia (Resistance to perturbation) Renewal (Ability to repair damage) Not all species are critical to an ecosystems function; many fill redundant roles; basis for community resilience and integrity If too many species or keystone species are lost, eventually it leads to the failure of ecosystem function Kelp Forest Food Webs:  Kelp Forest Food Webs Non-Use or Passive Values:  Non-Use or Passive Values Existence value Bequest value Potential or Option value Why Do Values Matter?:  Why Do Values Matter? Acknowledgements:  Acknowledgements

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