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Glen Park: Home to the Red-back Jumping Spider

April 28, 2011 by Elizabeth Weise

By Murray Schneider, Glen Park News

High above Alms Road on April 27th, with the Miraloma Improvement Club behind him, Dylan Hayes, Recreation and Parks gardener, demonstrated to six Friends of Glen Canyon Park volunteers the art of pulling invasive Italian thistle, wild radish and poison hemlock that threaten native Douglas iris and aromatic yarrow.

Red-backed Jumping Spider

Hayes’s tutorial took place in Fox Meadow, a sequestered part of Glen Canyon Park that recreational walkers rarely see. Strewn with bushy coastal brush, hydra-coiled Cape ivy, and thorny blackberry, Fox meadow, home to wild coyotes, is one of the few pristine natural areas in San Francisco, according to Hayes.

“This habitat marks the beginning of time,” Hayes pointed out to a volunteer. “It is priceless and deserves generational understanding and respect.”

Hayes leaned down, observing a spider that crawled along his yellow pop-up bag.

“It’s a Red-back Jumping Spider, the largest jumping spider in North America,” Hayes said.

The largest jumping spider in North America!

In Glen Canyon?

As Hayes pointed to the swath of red skin on the arachnid’s dorsal side, the spider vaulted from his fingers and burrowed beneath a stand of poison oak, a sanctuary from pursuing hands.

“What do they eat?” quizzed the volunteer, incredulity writ large on his face.

“Anything smaller than it is,” said Hayes, a City gardener for 14 years, six with the Natural Areas Program. “They’re predators!”

The volunteer’s eyes widened.

Taking the bait, Hayes opined, “They’re ferocious.”

Replacing the high stepping spider wasn’t difficult for Hayes, his head shaded with a wide-brimmed gardener’s hat and his hands protected by a tight-fitting blue rubber gloves. He next nabbed a Box Elder beetle camouflaged among coyote brush. The insect crawled along his extended finger, a more benign resident of one of the most naturally wild places within San Francisco’s 49 square miles.

A red tailed hawk sailed above, eyeing a gopher Hayes had earlier pointed out.

Hayes’ colleague, gardener Randy Zebell, said, “It’s amazing that 800,000 people live in a place and share it with such nature.”

Under Hayes and Zebell’s supervision, the volunteers collected their tools: mattocks and rakes. They stuffed the extricated hemlock, radish and thistle into three separate pop-up bags and then headed down the slope that would eventually wend its way past Silver Tree Day Camp. Below them the songs of sparrows combined with the laughter of Glenridge Nursery school children.

Hayes led the way, then momentarily stopped. He turned around, looking puzzled.

“You know,” he said, “There should be a place such as this where a person can get lost.”

Try Fox Meadow.

But watch out for the jumping spider of San Francisco County.

Filed Under: Uncategorized

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IMPORTANT UPCOMING DATES

Arlington Path Planting
Saturday, Nov 22, 10 a.m. to noon
Plant Ceanothus, Coyote Brush
and more along the Arlington Path.
Location: Mid 500-block of Arlington Street
Plants, planting demonstration,
tools, gloves and coffee provided!


Plant the Canyon with SFPUC!
Tuesday, Dec. 9
9:15 a.m. to 12:30 p.m.
Click here to learn more and sign up
Click here to read the GPN story about the tree removal and habitat restoration




NERT Calendar:

Meetings, Trainings & Events


Monthly cleanup on the Greenway
First Saturday of the Month (usually).
Click here to learn more


Friends of Glen Canyon’s
Glen Canyon Habitat Restoration
Every third Saturday 9:30 a.m to noon
Sign up here

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Click the above button or here to see all upcoming Glen Park Branch Library events. Subscribe to the Glen Park Library monthly newsletter to get events highlights in your inbox.

Glen Park Rec Center

Glen Canyon Park sign
Click image above or here to see
the latest Glen Park Rec Center schedule.



Saturdays 3-4:45 p.m.
Questions? Call 415-239-4007

Renew Your Glen Park Association Membership for 2025

Join the Glen Park Association and help promote our community’s interests. Together, we can secure improvement funds, publicize neighborhood concerns and strive to speak as one voice on neighborhood and city issues.

Membership in the Glen Park Association is only $10 annually and can be purchased online.

Glen Park Association Advertising Sponsors

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Center for Creative Exploration - child
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TreeKeeper SF Ad
JE_Digital Small Space Ad
Diamond Heights Digital Ad
GPA Ad- Perez Construction ad 6.27.22 v Glen Park
moroco
Center for Creative Exploration - child
Bird & Beckett Books drawing
TreeKeeper SF Ad
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Glen Park Association is at Glen Park Recreation Center.
5 days ago
Glen Park Association

FREE MOVIE NIGHT! Tuesday, November 18th, 6PM at the Glen Park Rec Center!

ACADEMY AWARD winning 2019 movie “PARASITE” will be showing!

🎥 70 Elk Street (indoors)

#glenpark #glenparkrec #freemovie #sfrecpark #sanfrancisco #funcheapsf
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FREE MOVIE NIGHT! Tuesday, November 18th, 6PM at the Glen Park Rec Center! 

ACADEMY AWARD winning 2019 movie “PARASITE” will be showing!

🎥 70 Elk Street (indoors)

#glenpark #glenparkrec #freemovie #sfrecpark #sanfrancisco #funcheapsf
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Glen Park Association is in Glen Park.
5 days ago
Glen Park Association

The @glenparkassociation and
@glen_parkmerchantssf would like to thank all the volunteers who helped pick up trash today!

13 bags of trash outta here!
We’ve picked up 1090 bags of trash since May 2022 🙌🏽

A big thank you to @avenuegreenlight for their generous support for our snacks and refreshments, @canyonmarket for their wonderful fruit, @pebblescafesf for their delicious coffee, @critterfritterspetfood for hosting, @sfpublicworks for the supplies and trash pick up, and @refuserefuses for their continued support in bringing our community together!

Our next Clean up is DECEMBER 13th, Saturday 10AM.
Meet at @critterfritterspetfood, 670
Chenery Street.

#refuserefusesf #glenpark #glenparksf #keepsfclean #dontlitter #sanfrancisco #community
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The @glenparkassociation and
@glen_parkmerchantssf would like to thank all the volunteers who helped pick up trash today! 

13 bags of trash outta here! 
We’ve picked up 1090 bags of trash since May 2022 🙌🏽

A big thank you to @avenuegreenlight for their generous support for our snacks and refreshments, @canyonmarket for their wonderful fruit, @pebblescafesf for their delicious coffee, @critterfritterspetfood for hosting, @sfpublicworks for the supplies and trash pick up, and @refuserefuses for their continued support in bringing our community together!

Our next Clean up is DECEMBER 13th, Saturday 10AM.
Meet at @critterfritterspetfood, 670
Chenery Street.

#refuserefusesf #glenpark #glenparksf #keepsfclean #dontlitter #sanfrancisco #community
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Blog Roll

Coyote Yipps
Friends of Upper Noe Recreation Center
Glen Park Neighborhoods History Project
Open SF History
Sunnyside Conservatory
Sunnyside History
Sunnyside Neighborhood Association
Tramps of San Francisco
Upper Noe Neighbors

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