March Visit (3/5/2020)

At the beginning of March I set off to hike the full loop up to Blue Ridge, down the spine of the ridge, past the homestead and back along the creek trail. It is only a five mile hike, but one that I generally do not have time to do given that I stop to draw to frequently. Blissfully ignorant of the new reality that was about to descend on all of us, I marveled at the opportunity to get the full perspective of high and low habitats at the Reserve.

I started by trying something new: marking the spots where I stopped to draw and noting the thing that had caught my attention there. (I drew the map in advance and added the cartoons of the flowers after the fact.)

StebbinsSketchbook1_2020Mar5

I was extremely pleased to find California pipevine in bloom! Last year, I caught the flowers once they had dried out, so was determined to find them fresh this year. They look so stunning when backlit with the light glowing through their hollow, yellowy-green bodies veined in red.

StebbinsSketchbook2_2020Mar5

Variable checkerspot caterpillars were plentiful on the ridge. I originally misidentified the first one I saw, but realized my mistake when I came on a crowd of them feeding on woolly paintbrush, one of their main host plants.

StebbinsSketchbook3_2020Mar5

Two of my favorite tiny wildflowers—purple sanicle and miniature lupine—were growing in bright exposed areas along a steeper part of the trail.

StebbinsSketchbook4_2020Mar5

An anise swallowtail (originally misidentified in the drawing) held still long enough for me to do a careful drawing. The grey hairstreak was not so patient, so I drew it based on memory as it flitted from twig to twig.

StebbinsSketchbook5_2020Mar5

This is the first year I’ve seen fruits on the manzanitas that were burned!

StebbinsSketchbook6_2020Mar5

So many beautiful colors on the hike: so hard to remember to keep moving and not try to draw every single new flower I see.

StebbinsSketchbook7_2020Mar5

The effects of our extremely dry February were abundantly evident in the creek, which was incredibly low and filled with algae. It was completely dry near the entrance to the Reserve.

StebbinsSketchbook8_2020Mar5

Now that I know that this was my last visit for a long time, with Stebbins closed to support the shelter-in-place rules, I am so grateful for this wonderful gift of a hike.

How is the Reserve Doing 3 Years After the Fire? (12/12/2018)

In December, I visited Stebbins along with two UC Davis Natural Reserves directors: Jeffrey Clary (Associate Director) and Sarah Oktay (Director of Strategic Engagement and Stebbins Cold Canyon Director).  They graciously agreed to walk some of the creek trail with me to tell me about how the fire response at the reserve has compared to expectations and answer the questions that I’ve had over the last few years of site visits.

Following are pages from my sketchbook outlining our discussion, written and illustrated after the fact.  At the end of this post, I’ve included the field notes I made during our walk.

illustratednotes1_2018dec12 2

Text from page 1:

1. The fire follower whispering bells (Emmenanthe penduliflora) was out in large numbers after the fire and hadn’t been seen at the reserve since the last fire 30 years ago.

2. Seedlings of buckbrush (Ceanothus cuneatus) were only seen this last spring (2018), which was three springs after the fire.  It may be that they had reseeded/germinated earlier, but only just became noticeable.

3. Hairy-leaf ceanothus (C. oliganthus) should also be in the reserve.  It may be up in the high draws and less obvious.

4. It is unclear how the manzanitas in the reserve are doing – there has not been a lot of resprouting or reseeding (parry manzanita, Arctostaphylos parryana).

5. Red ribbons (Clarkia concinna) can be seen regularly in the reserve, but never before in the numbers in which it was present the two springs after the fire.  It is usually only up on the slopes and showed up both on the slopes and in the canyon after the fire.

6. The interior live oaks (Quercus wislizeni) in the canyon are doing pretty well with resprouting but it is not as clear how well the blue oaks (Q. douglasii) uphill are doing.  Blue oaks tend to grow on the hillsides and live oaks in the canyon – blue oaks have a higher tolerance for low water conditions than do live oaks.

illustratednotes2_2018dec12 2

Text from page 2:

7. Many of the gray pines (Pinus sabiniana) were completely killed by the fire.  Gray pines are relatively intolerant to fire but return to the area easily in between fires.

8. American robins (Turdus migratorius) come in all at once and eat the berries off of the toyons (Heteromeles arbutifolia) over a couple of days.

9. Species composition in the reserve is back to about 80% of what it was before the fire.  The habitat structure is still very different, with much more understory and much less canopy.  Some cover has come back by now, though, and wildflowers were already much less numerous last spring than in the first two springs after the fire.

10. Chaparral currant (Ribes malvaceum) will be blooming soon.

11. The perennial vines in the reserve (wild cucumber – Marah fabaceus; western morning glory – Calystegia occidentalis; pipestem clematis – Clematis lasianthus) are less numerous in the mature community than they have been in the years right after the fire, when there has been abundant light and climbing support in the form of bare branches.

12. Yerba santa (Eriodictyon californicum) seeds germinate readily after fire and can also resprout after fire.

 

Here are the field notes I took while we walked (color added later):

fieldnotesall_2018dec12