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Pollinator Post 3/24/23 (2)

On the side of Skyline Trail, this burrow has been neatly maintained by trimming the vegetation around the entrance.  The burrow is too big for most bees.  Maybe a False Tarantula, Calisoga longitarsis? 
 
The Henderson’s Shooting Stars, Primula hendersonii must have been pollinated.  The nodding flowers are beginning to turn to  face the sky.  Bumble Bees and Digger Bees are capable of buzz pollinating these unusual flowers.  
Just a few feet away on the same moist bank, the California Saxifrage, Micranthes californica are blooming.   The clusters of tiny flowers are borne on a long peduncle arising from a basal rosette of thick, toothed oval leaves.  
Easily overlooked because of their small size, the flowers are actually breath-takingly colorful when seen up-close. 
The flower has five green to reddish sepals, five small white petals, and ten stamens with bright red anthers.  The center of the flower appears translucent – like green jelly.  This is part of the pistil, consisting of two separate styles protruding from it.   The colors are provided by the reproductive parts of the flower!  I wonder who pollinate these flowers?
About a stone’s throw from Siesta Gate, I always look down on the ground for this spider hole near a tree stump.  Although I have never seen the occupant, I am almost sure it is a False Tarantula, Calisoga longitarsis.  On sunny days after some rain, the spider often cleans out its burrow.  It is fun to see what it has thrown out.
Aah, the spider’s last meal appears to be a Pillbug!  Note the segments of exoskeleton that have been discarded.  Farthest on the left is the first thoracic segment of the prey.   

Curious about the Pollinator Posts? 

Who created the Pollinator Posts?2025-12-09T10:27:17-08:00

The Pollinator Post is a photo journal created by May Chen, a local naturalist.  It started many years ago, as simple e-mails sharing the excitement of discovery with fellow hikers and gardeners.  The burgeoning readership eventually necessitated the creation of the Google Group, the Native Gardeners three years ago.  Now the journal has found a permanent home at our website, with easy access to all.  Let May guide you through the miniature world of the creepy crawlies, regaling you with the drama that is happening right under our noses.  Enjoy!

May likes to describe herself as a career volunteer.  She has been a docent at Martin Griffin Preserve in West Marin for more than 20 years.  Her passion for plants and insects has led her naturally to the study of pollination biology.  She has taught docent-training classes on pollination at the Regional Parks Botanic Garden.  As a volunteer with the Friends of Sausal Creek, May has helped in the native plant nursery and tended the BridgeView Pollinator Garden.  She enjoys exploring the East Bay parks and gardens, and shares her observations on the Pollinator Post.  

Because of her initial focus on pollinators, especially bees, May has titled her missives “Pollinator Post”.  However, over the years of observation, she realized that we should view the botanical world as an interconnected whole that embraces other plant-insect interactions that are often overlooked – e.g. predator/prey, decomposer/recyclers, host/parasites, each contributing to the health and stability of the collective.  Too often we are quick to judge insects as “good” or “bad”, ignoring their true roles in the ecosystem.  We need to understand these relationships if we were to be good stewards of our gardens, our farms and wild lands.

To see more of May’s work, see the following article and videos:

The Buzz in My Garden by May Chen, originally published in the Regional Parks Botanic Garden quarterly newsletter Manzanita in 2018

Life and Death on Milkweed

Life and Death on Silverleaf Lupine

How were the photos taken?2026-01-06T09:08:09-08:00

The photos in the older Pollinator Posts were taken with a series of Canon Power Shot point-and-shoot cameras with built-in macro capabilities.  Once May discovered the amazing convenience of the iPhone camera in 2019, she gave away all her other camera equipment.  Since then she has taken all her photos with her trusty iPhone 11Pro.  The close-ups are taken with a Sandmarc attachable 10X macro lens.  “Anybody with a cell phone can do it!”

 

There are countless other attachable macro lens available on Amazon, some as inexpensive as $30, that also work  well.  In fact, here’s one recommended by a bee enthusiast friend, Emil. The disadvantage of this lens, when compared to the Sandmarc, is that it clips on, and the clip could get in the way. 

In what area, locations, and when were the photos taken?2025-12-08T15:17:07-08:00

The photos in the Posts were taken in the East Bay of the San Francisco Bay Area; they were taken at Crab Cove and Bay Farm Island in Alameda, Skyline Gardens and the Bridgeview Pollinator Garden in Oakland, Mendocino Park in Richmond, numerous sites in the East Bay Regional Park District, such as the Regional Parks Botanic Garden, and Inspiration Point, other open space areas in Alameda and Contra Costa counties. and occasionally at private gardens, among other locations..

The Pollinator Posts began on July 12, 2019. Post creation is paused at the end of each year, during the quiet time for insects, and resumes in the following spring.

How can the Posts help me garden for wildlife?2025-12-08T15:16:39-08:00

Browse the Posts to see what insects you might look for in your own garden on certain plants at a specific time of year. For example, you could search on “August”, and among the results you’ll see that you could be looking for leaf cutter bees on aster and, early in the morning, male longhorn bees sleeping on buckwheat or tarweed. If you have soap plant (aka soaproot) you might see the caterpillar of the western brown elfin butterfly, or dance flies.

Search on ‘pale swallowtail caterpillar” and you’ll see that it can be found on coffee berry, as can miner bees, hover flies, lady beetles, and more. Try it! Search on “clarkia,” “sunflower,” “gum plant,” or “acmon blue butterflies” and see what you discover!

How can I search the posts?2025-12-08T15:16:05-08:00

The search engine looks at every word in a post: you can search on an insect, such as caterpillar, a plant, like lupine, a month, or a location.

Can I use the photographs or text in these Posts?2025-12-08T15:15:11-08:00

The photographs and text in the Pollinator Posts are licensed as

CC BY-NC (Creative Commons: Attribution-NonCommercial). Basically, this means that the content can be used by others as long as they properly attribute it to © May Chen, and use it for non-commercial purposes.

Thank you to…2025-12-09T10:28:01-08:00

May Chen, for allowing her work to be made available to the general public on the Bringing Back the Natives Garden Tour’s website. 

David Faden, for solving the technical aspects of how to get the Posts, which were in an invite-only email Google Group, onto the Tour’s website. This was complicated, as you can see here.

Jeffrey Samorano, owner of Fearless Digital Journey, for integrating the posts into WordPress and making them functional and attractive.

Michael May, Clytia Curley, and Robin Mitchell for their help with earlier versions of this project. 

It was a pleasure working with all of them on this project. 

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