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Monthly Mt. Davidson habitat work party

When:

May 2, 2009
9am to Noon

Details:

Monthly Mt. Davidson habitat restoration work party

It’s time again for our regular “first Saturday” habitat restoration workparty at Mt Davidson with the Natural Areas Program! This is a joint activity between the City's Natural Areas Program and the San Francisco Group of the Sierra Club.

As always, a grand time will be had by all!

Kids under 12 need to be accompanied by an adult and should bring their own gear; otherwise gloves, tools, water and snacks will be provided.


Mt Davidson is the highest hill in San Francisco, and the 40 acre parcel preserved in its park is one of the largest and best of our remnant natural areas.

The trees on most of Mt D capture vast quantities of fog drip, converting the understory into a rain forest where invasive English ivy, cape ivy, blackberry, and ehrharta grass predominate. Management there involves careful thinning of diseased and failing trees to open up the understory, removal of the overburden of invasive weeds, and planting coastal scrub grasses and forbs and protecting those that arise spontaneously from the remnant seed bank in the soil.


The trees on most of Mt D capture vast quantities of fog drip, converting the understory into a rain forest where invasive English ivy, cape ivy, blackberry, and ehrharta grass predominate. Management there involves careful thinning of diseased and failing trees to open up the understory, removal of the overburden of invasive weeds, and planting coastal scrub grasses and forbs and protecting those that arise spontaneously from the remnant seed bank in the soil.

The main issue in the much drier grassland area is invasive annual grasses, though we also battle French broom and radish. Despite the invasive weeds, there is a remarkable collection of native bunchgrasses and many wildflowers still thriving in the grasslands.

The juncture between the trees and the grasslands along the north-east corner of Mt D has become one of the most important bird stopovers in the City due to the 13 different species of native berries that grow there. Unfortunately this is exactly the site where the San Francisco Public Utilities Commission planned to trench in a new water main up to the water reservoir at the top of the hill, but fortunately due to volunteer and neighborhood outcries, this plan was shifted to route the pipeline into the noncritical weedy areas under the trees. This work will happen during 2008, and we will be monitoring it closely indeed here at SF Natural Areas.

Mt Davidson currently has 166 volunteers who have subscribed to our regular email newsletters and work at this site. They have posted 76 photos and 30 posts to their blog.

We hope that our members continue to support the City's important (and underfunded) Natural Areas Program and this monthly work party.

Contact Information:

San Francisco Group Sierra Club
RSVP required. Call Suzanna Buehl (415-831-6328) or visit the website
info@sfnaturalareas.org

Directions:

For directions and Muni information, please visit the program's website at http://sfnaturalareas.org/sites/1

Read more at this website

     
     

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