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Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
Sierra Club
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Sierra Club

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Presentation made to the Loma Prieta Chapter of the Sierra Club as Acterra Chief Steward.

Presentation made to the Loma Prieta Chapter of the Sierra Club as Acterra Chief Steward.

Published in: Travel, Sports
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  • 1. The Keepers of the Hall Caring for Natural Resources and the Acterra Stewardship Program
  • 2. Biodiversity in California <ul><li>Over 1,800 rare animal species, more than 5,000 native plant species. </li></ul><ul><li>Extinction rate: 3 rd highest in US. </li></ul><ul><li>135 imperiled species found in San Francisco Bay Area. </li></ul><ul><li>Primary threat: habitat alteration (Nature Conservancy, 2003. </li></ul>
  • 3. &nbsp;
  • 4. Invasive Species <ul><li>Economic impacts &gt; 137 billion / yr. (Wilson, 2004) </li></ul><ul><li>Ranked 2 nd most severe threat to biodiversity in US today (TNC, 1996). </li></ul><ul><li>Outcompetition, habitat dominance and displacement of native species. </li></ul><ul><li>Alter ecosystem processes; fire, water cycles, and erosion. </li></ul><ul><li>Hybridize with native species and alteration of the gene pool. </li></ul>
  • 5. Are any of these familiar?
  • 6. The elephant in the Preserve
  • 7. Stewardship <ul><li>From Old English stigweard ; the keeper of the hall. ¹ </li></ul><ul><li>“ The concept of land as a resource, our responsibility to wisely manage that resource, and our responsibility to future generations for the condition of that resource when we leave it.” ² </li></ul><ul><li>Preserve, connect, protect, restore. </li></ul>1. http:// dictionary.reference.com /browse/stewardship 2. http://dnr.maryland.gov/criticalarea/glossary.html
  • 8. Pearson-Arastradero Preserve <ul><li>622 acres </li></ul><ul><li>Palo Alto Foothills </li></ul><ul><li>Owned by City of PA, Environmental Stewardship by Acterra. </li></ul><ul><li>Free, open 365 days, allows biking, hiking, fishing, horseback riding, nature study. </li></ul><ul><li>3 primary habitat types. </li></ul>
  • 9. Oak Woodland <ul><li>Plant Species </li></ul><ul><li>5 oak species </li></ul><ul><li>California bay laurel </li></ul><ul><li>Herbacious native and non-native understory </li></ul><ul><li>Animal Species </li></ul><ul><li>Acorn Woodpecker </li></ul><ul><li>Garter Snake </li></ul><ul><li>Bobcat </li></ul>
  • 10. Importance of Oaks <ul><li>Support vast amounts of biodiversity. </li></ul><ul><ul><li>300 terrestrial vertebrate species </li></ul></ul><ul><ul><li>1,100 vascular plants </li></ul></ul><ul><ul><li>370 fungal species </li></ul></ul><ul><ul><li>5,000 arthropod species </li></ul></ul><ul><li>Promote watershed health. </li></ul><ul><ul><li>Regulate water flow </li></ul></ul><ul><ul><li>Protect soils from erosion </li></ul></ul><ul><ul><li>Maintain water quality </li></ul></ul>This slide and the next are courtesy of Lynne Trulio’s ENVS 191 class, SJSU, Spring, 2008.
  • 11. Valley Oak ( Quercus lobata) <ul><li>Deciduous </li></ul><ul><li>Trunk: d ull brown bark, thick, deep creases. </li></ul><ul><li>Leaves: d eep lobes, </li></ul><ul><li>faded green, velvety texture </li></ul>(http://images.google.com/imgres?imgurl=http://lh3.google.com/ ( http://bss.sfsu.edu/holzman/courses/Fall02%20projects/valley_oak.html )
  • 12. Riparian and Ponds <ul><li>Plant Species </li></ul><ul><li>Willows </li></ul><ul><li>Cattails </li></ul><ul><li>Invasive and native herbaceous understory </li></ul><ul><li>Animal Species </li></ul><ul><li>Herons and egrets </li></ul><ul><li>Dusky footed woodrat </li></ul><ul><li>Pacific tree frog </li></ul>
  • 13. Poison Hemlock ( Conium maculatum) <ul><li>Introduced from Europe as an ornamental, now found in 46 of the contiguous states. </li></ul><ul><li>Produces between 5,000 and 38,000 seeds per plant. </li></ul><ul><li>Can grow from 3-10 feet in one year. </li></ul>
  • 14. Oak Savannah <ul><li>Plant Species </li></ul><ul><li>Native tarweeds and willow-herb. </li></ul><ul><li>Isolated oaks </li></ul><ul><li>Wildflowers </li></ul><ul><li>Invasive and native grasses </li></ul><ul><li>Animal Species </li></ul><ul><li>Coyote </li></ul><ul><li>Western Rattlesnake </li></ul><ul><li>Pacific Black-tailed deer </li></ul>
  • 15. Purple Needlegrass ( Nasella pulchra) <ul><li>Most native California grasses grow in a bunch pattern that provides higher habitat value in the form of forage, nesting, and travel lanes. </li></ul><ul><li>Many native grasses are perennial. Green all year, they provide defensible space against wildfires. </li></ul>
  • 16. Do you know your natives?
  • 17. What we do – Acterra’s Stewardship Program <ul><li>At Pearson-Arastradero Preserve </li></ul><ul><li>Invasive weed management </li></ul><ul><li>Interpretive hikes </li></ul><ul><li>Seed collection </li></ul><ul><li>Watershed-specific outplanting </li></ul><ul><li>Research &amp; information sharing </li></ul><ul><li>At other sites </li></ul><ul><li>Native Plant Nursery </li></ul><ul><li>Restoration Database </li></ul><ul><li>Fundraising, community relationships and logistics. </li></ul><ul><li>Young Earth Stewards </li></ul>
  • 18. Volunteers! <ul><li>Backbone of Acterra’s Stewardship Program at Pearson-Arastradero Preserve. </li></ul><ul><li>Community service, interns, corporations, individuals. </li></ul><ul><li>Adopt-a-plot, workdays, weed warriors, logistics. </li></ul><ul><li>Avg. 750 people/yr with 4,000 hours donated! </li></ul>
  • 19. What you can do <ul><li>WEED ABATEMENT </li></ul><ul><li>Contact city and county governments and transportation agencies and ask them to control weeds like Dittrichia and Italian Thistle on rights-of-way, roadside areas, and public lands. </li></ul><ul><li>NATIVE PLANTS </li></ul><ul><li>Advocate and practice the use of native plants for landscaping where you live, play, work, shop, visit, and recreate. </li></ul><ul><li>RECREATE RESPONSIBLY </li></ul><ul><li>Stay on trails! Learn about native ecosystems and the dangers to them. Don&apos;t be a weed-seed or Sudden Oak Death source; clean boots, clothes, pets, tires, and vehicles whenever you go from one park or preserve to another. Leave no trace! This includes microtrash (i.e. orange peels) as well as garbage. </li></ul>
  • 20. Wait, there’s more! <ul><li>CARBON REDUCTION </li></ul><ul><li>Carpool, bike ride, and take public transportation whenever possible. Purchase carbon credits when you can&apos;t. Buy local foods and products. Visit www.acterra.org for more ideas. </li></ul><ul><li>VOLUNTEER AND DONATE! </li></ul><ul><li>Participate in habitat restoration, trail maintenance, bird-box monitoring, weed eradication, and public education and outreach. If you don&apos;t have time to volunteer, make a donation to your favorite park or preserve on a regular basis. </li></ul><ul><li>HABITAT RESTORATION </li></ul><ul><li>Acterra hosts habitat restoration events every second and fourth Saturday from 9-1, as well as Wednesday evenings from 6-8 PM. For information on what to wear, what to bring with you, and directions to the Preserve please see: http:// www.acterra.org/arastradero/volunteer.html . </li></ul>
  • 21. We are the keepers of the hall
  • 22. Contact <ul><li>Miriam Sachs Martín, Chief Preserve Steward. </li></ul><ul><li>[email_address] / (408)597-7830. </li></ul><ul><li>www.Acterra.org </li></ul><ul><li>3921 East Bayshore Road Palo Alto CA 94303-4303 USA. </li></ul><ul><li>650-962-9876 (Front Desk). </li></ul>

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