10.26.2010 envs lecture

10.26.2010 envs lecture - E NVS100 Lecture Bioinvasions...

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10/26/2010 ENVS100 Lecture Bioinvasions policy: challenges and opportunities Causes: intentional species introduction, incidental/unintended species introductions - conceptually breaking it down into different type of policies… Policy responses: prevention (sometimes it’s too late to eradicate or get rid of the invasive species), early detection/rapid response, mitigation/eradication - species introduction, hitchhiking species, species get transported do become invasive Policy challenges: prevention intentional introduction - horticulture species - pet species - introduction for ecological restoration? Problem: controlling things that people do want. Something to reduce species transfer but it is not costless and people don’t want to deal with the economics part. Some issues are really big and it’s hard to come up with the technology to clean up (ex: dirty water) We are in the middle of this because our technology is not good enough. Not enough incentive. market pull: if government imposed regulation (command and control regulations that doesn’t say you have to use this type of technology but you have to keep up with this standard) Command and control will enhance environmental protection. Incidental introduction - agricultural procedures imports and their hitchhikers - the case of the ship ballast water Asian oyster proposed introduction to the Chesapeake Bay - they escaped from people’s gardens - people have been trying to impose a better system for controlling the types of plants/species for gardening control - right now, we have a blacklisting approach to control plant import - blacklisting approach: listed as pests/invasive/agricultural weeds - and these plants are illegal to import
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- move from blacklisting approach to whitelist approach (specifically clear of the nonindigineous species we introduce) - Jimmy carter: first to introduce whitelist approach but it didn’t work out - How might you go about making decisions introducing non native species into the Chesapeake bay? -
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10.26.2010 envs lecture - E NVS100 Lecture Bioinvasions...

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