envs 100 lecture 10

envs 100 lecture 10 - Today Your findings go to...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 10/14/10 Today Your findings go to the EPA tomorrow Case study closure: Coyote Ridge WriAng Assignment 2 (WA2) STRESSORS/THREATS climate change overconsumption TARGETS/VALUES animals enjoyment TOOLS/INTERVENTIONS restoration education lack of env ed in school mountaintop removal toxics pest damage crops coastal ocean public lands villages, families rivers and streams clean E techologies dam removal policy, law, hard work international relations miseducation/distortion production of mined goods underfunding/ lack of green incentives pollution unsustainability privatization industrial food overpopulation indigenous knowledge agroecology biodiversity emissions reduction people's dignity beauty Earth biofuels innovation water conservation communication advocacy politics litigation Why conserve the environment? WHY? Intrinsic UAlitarian Intrinsic UAlitarian Ethical Moral Spiritual convicAon Religious convicAon “ObligaAon to endure” Food, lumber, fiber RecreaAon Clean air, clean water Beauty? OpAons for future generaAons? Knowledge that there are Agers out there? Ability to worship at a sacred tree? 1 10/14/10 Another pair of reasons •  Biodiversity •  Ecosystem services Nature’s contribu/ons to quality of human life Another pair of reasons •  Biodiversity •  Ecosystem services Intrinsic UAlitarian Are these the same as Intrinsic UAlitarian biodiversity ecosystem services •  Anthropocentric •  Biocentric ? What you found •  What is extent of federally recognized N polluAon threat to ESA ­protected and candidate species? •  What types of species, where? •  (later) What are mechanisms of impact? •  (later) Is the problem more extensive? N poses extinction risks! "   At least 85 listed & candidate species with documented impacts of N loading" "   These species NOT confined to high N deposition areas " 2 10/14/10 Recognized N threats to listed species N impacts on listed and candidate species! By Region" By Taxa" n=85! n=85! Listed & candidate species with N documented as factor in decline! located in a single state! located in multiple states! CMAQ 2002 Annual Total N Deposition! Problem statement Problem statement •  How do we conserve places like Coyote Ridge? •  What do we need to know? •  What tools are available to miAgate damage locally (proximate threats)? •  What tools to miAgate larger drivers? •  How do we conserve places like Coyote Ridge? •  What do we need to know? •  What tools are available to miAgate damage locally (proximate threats)? •  What tools to miAgate larger drivers? Nitrogen deposiAon (Climate change) Invasive species Nitrogen deposiAon (Climate change) Invasive species Stewardship of CR’s natural grasslands RestoraAon of CR’s natural grasslands •  RestoraAon: the process of assis/ng the recovery of ecosystems that have been damaged (SERI 2006) redirecAon, intervenAon •  What is our target condiAon/goal? •  How long do we commit to its pursuit? •  Ca]le •  Herbicides •  Prescribed burning •  Hands off or ? or ? 3 10/14/10 The present (and the future) do not resemble the past Grazing as restoraAon tool •  How well does it work? •  Will it work indefinitely? •  What is it not addressing? Steffen et al. 2004 Problem statement Target condiAon/ goals •  Defining success: –  Dollars spent on restoraAon (intervenAon measure) –  Maximum exoAc cover (stressor measure) –  Minimum naAve plant diversity, abundance (target measure) –  Bu]erfly populaAon growth rates (target measure) –  One measure or several? •  How do we conserve places like Coyote Ridge? •  What do we need to know? •  What tools are available to miAgate damage locally (proximate threats)? •  What tools to miAgate larger drivers? Nitrogen deposiAon (Climate change) Invasive species MulAple stressors require mulAple tools to conserve habitat Biodiversity as a means and an end •  AdapAve capacity (evoluAonary, ecological) •  Maintaining dominant and minor species Create reserves (halt shrinkage) Tackle proximate stressors (restoraAon) Tackle regional stressors (policy) AnAcipate long ­term effects of global drivers (planning, policy) •  Do we give up at some point? How do we decide? (triage, allocaAon of scarce resources) •  •  •  •  Santa Clara Valley dudleya: federally endangered 4 10/14/10 Pop quiz •  5 minutes •  Turn it in to YOUR TA at beginning of break •  Turn it in! You get points for trying. 5 ...
View Full Document

This note was uploaded on 09/15/2011 for the course ENVS 100 taught by Professor Zavaleta,e during the Fall '08 term at UCSC.

Ask a homework question - tutors are online