Pollinator Post 2/18/23

Q: Thank you to…

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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Someone has been weeding the edges of the paved road to the Water Tower, mindlessly tossing some clumps of grass onto a blooming Hillside Gooseberry, Ribes californicum. I relieve the branches of their unwanted weights and pause to admire the delicate hanging flowers.

The genus Ribes includes gooseberries and currants. The gooseberries are easily distinguished by their spiny stems. The charming hanging flowers have sepals that are reflexed, or folded backwards along the length of the flower. The petals are white and extend forward to form a loose tube from which the stamens emerge. The plant is known to attract bees, butterflies, hummingbirds and other pollinators.

A couple of bees are buzzing around me noisily, occasionally landing to feed on the flowers. They are stout-bodied, all gray, about the size of worker bumble bees. I push my camera shutter frantically to match the break-neck speed of these bees. See the bee exiting the left of the frame? These are some of the most exasperating bees to photograph.

A lucky shot of a bee landing to take nectar from a Gooseberry flower. It is a male Digger Bee, in the genus Habropoda (family Apidae). Lately I have been seeing these bees around the early flowers of the Silverleaf Lupine at Skyline, on Ceanothus flowers in various places, and on the Ribes in my own garden.

How do I know that it is a male? It has a large white patch on its face which the females lack. Also his antennae are somewhat longer. A female would have a pale scopa (special pollen-collecting hairs) on her hind legs. There are 12 species of Habropoda in California. Habropoda depressa is widespread and common, active February through May. Habropoda are generalist foragers, visiting flowers from several plant families. As the common name implies, females construct nests in the ground. The males usually emerge first in early spring. They ply the ground listening for the females to emerge. And if they hear one, they will dig down to meet her. No patience whatsoever.

Species Habropoda depressa – BugGuide.Net

Habropoda depressa – BugGuide.Net

I stop by the vivid green patch of Common Chickweed, Stellaria media that I have photographed on 2/12. There are now more flowers, and more ant activity on the sprawling plants.

An Argentine Ant, Linepithema humile enters a Common Chickweed flower eagerly.

In reaching down into the corolla to access the nectar, the ant’s body invariably comes in contact with the reproductive structures of the flower. Note the pollen grains on the ant’s legs. I am sure that the Common Chickweed relies on ants for pollination.

Curious about the Pollinator Posts?

Who created the Pollinator Posts?Jeffrey Samorano2025-12-09T10:27:17-08:00

Who created the Pollinator Posts?

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?Jeffrey Samorano2026-01-06T09:08:09-08:00

How were the photos taken?

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?Jeffrey Samorano2025-12-08T15:17:07-08:00

In what area, locations, and when were the photos taken?

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?Jeffrey Samorano2025-12-08T15:16:39-08:00

How can the Posts help me garden for wildlife?

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?Jeffrey Samorano2025-12-08T15:16:05-08:00

How can I search the posts?

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?Jeffrey Samorano2025-12-08T15:15:11-08:00

Can I use the photographs or text in these Posts?

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…Jeffrey Samorano2025-12-09T10:28:01-08:00

Thank you to…

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.