Upload
stephanie-beck
View
104
Download
2
Tags:
Embed Size (px)
Citation preview
Sustaining Aquatic
Biodiversity
Sustaining Aquatic
Biodiversity
Ch. 11, part 2Ch. 11, part 2
WetlandsWetlands Very high biodiversity Very important ecological
services: Natural filters
Trap and clean human and animal waste so water stays clean
Very high biodiversity Very important ecological
services: Natural filters
Trap and clean human and animal waste so water stays clean
WetlandsWetlands Disappearing
worldwide We drain, fill in,
and cover these areas for crops, cities, etc.
Vulnerable to global warming - rising sea levels drown them
Disappearing worldwide
We drain, fill in, and cover these areas for crops, cities, etc.
Vulnerable to global warming - rising sea levels drown them
Freshwater ecosystems - HIPPCO
Freshwater ecosystems - HIPPCO
Affected by: Dams Pollution Overfishing Invasives
http://www.kqed.org/quest/television/restoration-of-the-san-joaquin-river Friant Dam in Fresno
Affected by: Dams Pollution Overfishing Invasives
http://www.kqed.org/quest/television/restoration-of-the-san-joaquin-river Friant Dam in Fresno
How do we protect
freshwater ecosystems
How do we protect
freshwater ecosystems
Protect the watershed
Watersheds deliver pollutants, nutrients, leaves, feces, etc to rivers
Protect the watershed
Watersheds deliver pollutants, nutrients, leaves, feces, etc to rivers
Laws and Economic Incentives
1968 - National Wild & Scenic Rivers Act Wild = only accessible by
trail Scenic - pretty,
undeveloped Only 0.2% of all US rivers
protected Only 2% of those
protected as free flowing
Laws and Economic Incentives
1968 - National Wild & Scenic Rivers Act Wild = only accessible by
trail Scenic - pretty,
undeveloped Only 0.2% of all US rivers
protected Only 2% of those
protected as free flowingThe Tuolumne river
Priorities for sustaining biodiversity and ecosystem
services
Priorities for sustaining biodiversity and ecosystem
services1. Map all the world’s life
so we know what we have
1. Map all the world’s life so we know what we haveTo keep every cog
and wheel is the first precaution of
intelligent tinkering
Aldo Leopold
Encyclopedia of Life
http://education.eol.org/who/what_is_eol
Priorities for sustaining biodiversity and ecosystem
services
Priorities for sustaining biodiversity and ecosystem
services2. Keep/protect all the
remaining old growth forests
2. Keep/protect all the remaining old growth forests
Priorities for sustaining biodiversity and ecosystem
services
Priorities for sustaining biodiversity and ecosystem
services3. ID hotspots and areas
where ecosystem services are no longer functioning properly
3. ID hotspots and areas where ecosystem services are no longer functioning properly
The Aral Sea
Priorities for sustaining biodiversity and ecosystem
services
Priorities for sustaining biodiversity and ecosystem
services4. Protect/restore all rivers
and lakes - the most threatened of all ecosystems
4. Protect/restore all rivers and lakes - the most threatened of all ecosystems
Priorities for sustaining biodiversity and ecosystem
services
Priorities for sustaining biodiversity and ecosystem
services5. Restore damaged
ecosystems to give some back to wildlife
5. Restore damaged ecosystems to give some back to wildlife
Priorities for sustaining biodiversity and ecosystem
services
Priorities for sustaining biodiversity and ecosystem
services6. Make conservation economically attractive
6. Make conservation economically attractive