Battle Has Been Joined, The War Has Begun Anew

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Photo by Philip, https://www.flickr.com/photos/21202718@N00/, CC BY-NC-SA 2.0

And so it goes.

Today Steward Linda Felt found a patch of the invasive weed Yellow Star Thistle on the Overlook Trail. I had been watching for it, but eagle-eyed Linda gets the prize for First Sighting of the Season (there is no prize, actually, merely recocgnition). With this new information, I redoubled my efforts to find it and indeed found some small, not yet flowering, plants on the upper meadow.

Thus begins the 2015 campaign to rid the Overlook Trail of this non-native plant, an effort that has been going on for years. Steward Rich Gibson, a Biologist and retired Ranger, ably leads the effort. He schedules group work days to tackle it, bringing snacks, gloves, sacks, and camaraderie. We also pull the weed individually, since group work days are insufficient to completely eradicate it.

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Photo by Roy Tennant, Stewards Joanna Kemper and Rich Gibson pictured.

Last year we likely had our best year yet, as we continued to pull throughout late Spring, Summer, and into early Fall until none could be found on the main trail. However, we had to leave some very infested patches near Norrbom Road (around the water tank and on up to nearly the Rattlesnake Cutoff trail). We’re aiming to knock those back this year, as well as keep the main trail thistle-free.

Word is that to eradicate it completely takes up to five years of concerted, thorough, eradication efforts. Then vigilance is required, as it could try to re-establish at any time.

Linda Felt is active in the effort to eradicate Jack London State Park of Yellow Star Thistle and she reports that it is already well engaged this season there. So lock and load, people. The battle has begun.

Watch for flyers at the trailhead for group work days. We’d love to see you there.

Dragonflies Aplenty

I’ve always been fascinated with dragonflies — their often bright coloration, their way of darting about when flying, their large size for an insect. So I was delighted to get photos of two specimens on today’s hike — one on the Overlook Trail and another on the Montini Preserve.

dragonfly1The first one I saw was this Flame Skimmer (Libellula saturata), perched in a dead bush. I stayed on the trail and used my 30x camera zoom to get in close. The lacy wings are particularly beautiful in full size (click on the image).

Dragonflies are actually quite ancient. According to Wikipedia, fossils have been found from 325 million years ago. They were much, much bigger back then, with wingspans of up to nearly 30 inches. They are capable of four different styles of flight, which allows them to fly in six directions: upward, downward, forward, backward, to the left, and to the right.

dragonfly2I then encountered this Bison snaketail (Ophiogomphus bison) sitting on the Holstein Hill trail on the Montini Preserve, where it crossses the meadow at the top of the hill.

Dragonfly feeding habits? According to Wikipedia: “They are almost exclusively carnivorous, eating a wide variety of insects ranging from small midges and mosquitoes to butterflies, moths, damselflies and smaller dragonflies. A large prey item is subdued by being bitten on the head and is carried by the legs to a perch. Here the wings are discarded and the prey usually ingested head first. A dragonfly may consume as much as a fifth of its body weight in prey per day.”

Dragonflies have inspired a lot of art, from Tiffany stained glass lamp designs to Haiku, such as this poem by Matsuo Basho:

Crimson pepper pod
add two pairs of wings, and look
darting dragonfly

May you see a dragonfly or two the next time you hike the trails. You will be glad you did.

How to Make Friends and Stay Healthy

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Stewards pulling the invasive Yellow Star Thistle.

Being a volunteer trail steward is not nearly as glamorous and high-paying as it sounds. It clearly isn’t all wine and roses. Or even giggles and grins. But it is nonetheless very rewarding to those who volunteer to maintain these beautiful trails and properties we are blessed with in Sonoma Valley.

The Overlook Trail Stewards are a group of about a dozen people who meet four times a year but who also keep in fairly constant email communication about the needs of the trails and the properties they traverse. There is also a group of volunteers (some who are also Overlook Trail stewards), who help out on the contiguous Montini Open Space Preserve. Here are just some of the jobs we do for the Overlook:

  • Lead informational hikes. Some of us are trained as docents and lead groups from local schools on trail hikes to learn about the local ecology and related issues such as land stewardship. Also, we have name tags so when we are hiking the trail hikers will know our role and feel free to ask us questions about the trail or the plant and animal life they see.
  • Install and maintain signs. Proper signage is important for hikers to know their options as they reach junctions. Signs are also used to prevent hikers from using cutoffs that can be unsightly and create erosion problems. On the Overlook Trail, we also have signs that identify significant trees and plants of the area.
  • Maintain the integrity of the trail and the property. We put a lot of effort into preventing hikers from taking shortcuts which can lead to erosion and unsightly degradation of the property. We may also at times need to fix portions of the trail that are washing away or otherwise deteriorating.
  • Assure appropriate water drainage. As the trail is used over time, it tends to create a creek-like impression that rain happily uses to run downhill. To prevent serious erosion, it’s necessary to cut drainage paths on the downhill side of the trail to drain the water from the trail. These cuts need to be cleared out each Fall as rocks and debris tend to collect in them.
  • Reduce and eradicate non-native plants. Invasive species such as Scotch Broom and Star Thistle are found on the Overlook and Montini properties, and must be pulled from the ground by hand. In the Spring and Summer we often will have a work party that goes out with large grain sacks and gloves and pulls these invasive plants to provide a better habitat for our native flora. Individual stewards also go out independently to work to eradicate these plants from the properties. Eradication is only possible over a span of years of such focused activity.
  • Coordinate with local agencies. The City of Sonoma owns these properties, and has contracted with the Sonoma Ecology Center to maintain the Montini Open Space property as well as to serve as the fiscal agent for the Sonoma Overlook Trail. The Chair of the Stewards as well as others communicate with these agencies on a regular basis — for example, if a tree falls across the trail, the City Public Works department needs to be informed so they can come out and cut it. We also communicate with the Chief of Police about violations of the law on the trail (for example, dogs and bikes).
  • Raise money. Maintaining the trails as well as creating such things as stone benches for hikers requires money. We solicit donations from hikers for general maintenance needs and larger donations to sponsor benches.
  • Advocate for appropriate management rules and laws. The trails are governed by City ordinances that are, at least in part, grounded in official agreements with agencies such as the Sonoma County Open Space District. At times these ordinances are challenged by those who wish to change the rules (for example, the prohibition against dogs on the trails is now being called into question). It is our role as stewards to protect the values for which the land was originally set aside and the trails created.

Although that sounds like a lot, and some days it sure feels like it is, many of these activities get us out on the trails and working, which keeps us healthy and happy.  Meanwhile, we get to know each other and form lasting friendships with others who are committed to improving this valley and the lives of the people who live here. And what’s not to like about that? As a volunteer organization, there are no job requirements, no test to take, no application process. If you like what we’re about and want to help, join us!

Butterflies are Free

swallow2“I only ask to be free. The butterflies are free.” – Donald Gershe, Butterflies Are Free

As a child of the 70s (I turned 18 in 1975) perhaps I can be forgiven for taking my blog title from the Goldie Hawn movie of 1972, based on a play by Donald Gershe. But hey, butterflies are free. In some ways they epitomize freedom, as they flit and flitter from flower to flower in a seemingly random fashion. No one, and I mean no one tells a butterfly what to do.

However, you won’t find me jealous for the life of a butterfly. Depending on the species, the adult butterfly lives anywhere from a week to no more than a year. Given that, I think I’m just fine with where I sit in the circle of life. But as part of that I can certainly admire the beauty and apparent freedom of the many butterflies that grace our trails. Chief among them, in my opinion, given their size and color, are the Swallowtails (Papilionidae). They come in a number of varieties, and I’ve captured photos of at least two different kinds in recent days.

swallow4The Western Tiger Swallowtail (pictured above) is eye-catching with it’s yellow-and-black patterning. But there is also the black-and-yellow patterning called (naturally enough) the Black SwallowtailAny way you look at it, we have a plethora of butterflies in a variety of colors and sizes (as well as moths and other interesting insects such as dragonflies) on our Sonoma Valley trails. Keep a sharp eye out and you may see something you haven’t seen before.

ButterllyBlueDicksMeanwhile, butterflies may be free, but in the end we are even more free. We can observe these amazing creatures year after year, generation after generation. Perhaps we can’t flit from one flower to another on a whim, but we are blessed in many other ways.

Lizards Everwhere!

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An Alligator Lizard.

Wild flowers are not the only things now gracing the hills above Sonoma that a network of trails traverse. Lizards of a number of different varieties are out in profusion as well. Many times on the trail I’ve thought I would surely step on one, but they zip down the trail or off into the underbrush with a speed that is astonishing given how low to the ground they are.

The wide variety of lizards always has me checking to see if I’ve seen that type before, and recently I’ve been rewarded with seeing some quite beautiful types. The California Alligator Lizard is certainly one of the largest you will see on the trail, and also one of the most colorful with it’s stripes of alternating colors.

lizardBut there are many other varieties as well. A very useful web site for identifying lizards is the CaliforniaHerps.com, which provides a visual index to try to spot the one you saw on the trail.

Since lizards are cold-blooded and must regulate their body temperature by careful but frequent sun exposure, you can sometimes see them sunning themselves on a rock (pictured at left) or on the trail. If you have a camera with a long enough optical zoom (say 20-30x), you can sometimes get in close with the camera without scaring the little guy off. This is important, as they are easily scared by us giant humans thundering down the trail.

lizardRecently I saw a multi-colored lizard smack in the middle of the trail just below the Overlook Trail meadow (pictured at right). I’m not very good at identifying lizards, but I think this fellow is one of the types of Fence Lizard.

But whatever the types, there are clearly at least half-a-dozen or more different species of lizard that can be found on the Sonoma Overlook Trail and Montini Open Space Preserve, and that’s just fine by me. Most days you’ll find me hiking the trail with an eye scoping the ground, partly to avoid rattlesnakes, but also to avoid stepping on these little guys. Sure, they’re quick, but I still worry.