Term Paper Presentation Schedule Wed. Nov. 12Fri. Nov. 14Mon. Nov. 17 Sarah M.Jack A.Inez P. Claire D.Emily P.Jane H-M. Kaung K.Leslie C.Viet N. Eunice V.Nathan H.Nick B. Katie W.Matt S.Zoe M. Economics of Conservation Resources nonrenewable resources - resources for which the supplies are finite and exhaustible renewable resources - resources which renew themselves and which will last indefinitely if they are used wisely Value of Renewable Living Resources Plants and animals (and algae and fungi) harvested from the earths farmlands, rangelands, forests and waters and sold at market account for a sizable portion of the worlds total economic activity - In the US, they represent about 15-20% of our total economy, about $2.25 to 3 trillion per year Harvest of Living Renewable Resources Value of Wild Species the harvest of wild species accounts for about 4.5% of the US gross domestic product about $675 billion per year today Wild Pollinator Species Wild Forage Species Subsistence Living Bolivia Wild Pig - Sarawak Village in Amazonia Complex Agriculture in Amazonia Goods and Services Goods usually refer to something that can be consumed by humans thus goods have consumptive uses Services refer to things provided to us exclusive of consumption thus services have nonconsumptive uses Oak Tree Services Lawn Chairs, Hyde Park, London Trees Storm Damage Marsh Value Conservation Easement Riparian Conservation Easement Lion Amboseli National Park Wolf Yellowstone National Park Contingent Valuation One way of determining the value of species is to use a method called contingent valuation - this is a survey-research method in which people are asked direct questions that attempt to determine the values of people with regard to a particular issue Contingent Valuation Bald Eagle in Maine Contingent Valuationcenter/gifts/Species- Adoptions.aspx?sc=AWY1200WCGA1&gc lid=CI6rr_fq8MECFQYGaQodJxEAkAhttp://gifts.worldwildlife.org/gift- center/gifts/Species- Adoptions.aspx?sc=AWY1200WCGA1&gc lid=CI6rr_fq8MECFQYGaQodJxEAkA Potential Values Potential Values - Dogbanes Potential Values Teosinte and Corn Potential Values - Forest Siberia Existence Value - Sperm Whale Existence Value -Bristlecone Pine Costs of Conservation Explicit costs - this is the price we pay to restore or maintain a species or ecosystem Implicit costs are costs that arise because of a lost economic opportunity; the loss of an opportunity to use a resource to make money Explicit Costs California Condor ~ $1 million per year Explicit Costs Restoration of the Everglades - $ million over 20 years Implicit Costs - Douglas-fir Douglas-fir Logs Value up to $20,000 per hectare Northern Spotted Owl Require ~ 1000 hectares old growth forest Douglas-fir Distribution