Introduction by MMWD Volunteer Coordinator Suzanne Whelan
For 16 days in October the federal government ceased all but the most essential operations. But our lands and the creatures that inhabit them do not curtail their operations when we humans hit a budget impasse. Luckily for MMWD, interns from the Golden Gate National Parks Conservancy, who unexpectedly found themselves with free time, volunteered with MMWD for two days in October helping with habitat restoration and vegetation monitoring on the watershed. We were so happy to provide meaningful work and training for them and to benefit from their enthusiastic assistance.
The following summary of the two-day event is by Jaimie Baxter, a former MMWD Americorps intern and watershed aide. She is currently the trails stewardship manager for the Golden Gate National Parks Conservancy.
Golden Gate National Parks Conservancy Joins MMWD for Two-day Habitat Restoration and Vegetation Monitoring Event
by GGNPC Trails Stewardship Manager Jaimie Baxter
GGNRA intern pulling yellow star thistle.
On Wednesday October 9, more than 15 Golden Gate National Recreation Area (GGNRA) Park Stewardship interns and staff congregated near the top of Mt. Tamalpais at the Rock Springs area. This oak woodland and grassland area is known for its epic views, slabs of serpentine outcrops and hordes of rare plants. MMWD Volunteer Coordinator Suzanne Whelan and her two watershed aides explained the district’s mission of providing clean drinking water to their customers in south and central Marin County and protecting the 21,635 acres of watershed lands under their management. Director of Park Stewardship Sue Gardner then discussed the burgeoning Mt. Tamalpais Collaborative and the goals of all natural resource agencies in the area to join forces in the Mt. Tamalpais region.
The thistle-pulling team of GGNRA and MMWD.
After all that talking, it was time to get to work! MMWD and the Park Stewardship team strategized their assignment for the day — removing invasive, non-native yellow-star thistle (Centaurea solsitialis). Spreading out like a fan, the group surveyed the area for this invasive species, pulled and eventually bagged the prickly plant. The group was later joined by MMWD Vegetation Ecologist Andrea Williams, who discussed the interesting geology and ecology of serpentine soils, what makes a plant rare and ways that MMWD manages invasive species. And this was just the first day Park Stewardship collaborated with MMWD!
The following day the same team plus a few Park Trails interns jumped to the north side of Mt. Tamalpais to the Sky Oaks Ranger Station. Thursday’s mission was to identify and map the non-native, perennial grass species in Sky Oaks meadow. This meadow ecosystem, which has been heavily managed in the past, is a good example of an oak woodland ecosystem. The meadow is relatively healthy as it is mostly free of French broom, has woody species that do not overcrowd each other and has at least three species of oaks.
However the meadow is not without its problems, including Sudden Oak Death (Phytophthora ramorum) and non-native, perennial grasses. Our crew learned how to identify a multitude of these species including velvet grass (Holcus lanatus), sweet vernal grass (Anthoxanthum odoratum), wild oat grass (Avena fatua) and many more. The team then split into groups and headed off to map the non-native grasses using GPS-enabled cameras, compasses and datasheets. The team worked all morning and after lunch until they became cross-eyed from looking at SO many grasses! The day ended with a hike to Alpine and Bon Tempe lakes where much of MMWD’s drinking water is stored.
The Park Stewardship team is grateful to have a partner such as the Marin Municipal Water District. Thank you, MMWD, for your time, expertise and hosting Park Stewardship during the federal shutdown. We welcome any opportunity to join you in your efforts on the Mt. Tamalpais Watershed!
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