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a Sonoma Land Trust stewardship blog

Mountains + Molehills focuses on the adventures of the Sonoma Land Trust stewardship crew, and the day-to-day challenges and blessings that they face. The daily schedule of each crew member may involve working with power shovels, connecting with landowners, hiking around the Sonoma Valley Wildlife Corridor, building habitat for burrowing owls, avoiding skunks, trooping through poison oak, and so much more. Every day is an adventure, and we hope to share those adventures with you!

a change of scene at Sears Point

11/19/2015

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by Julian Meisler

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​Changing scenery and new visitors at Sears Point                         


Some 1,000 people visited Sears Point on October 25 to watch the tides return to the baylands, diked off and separated from the bay more than a century ago. It was a wonderful day of celebration that we called “Sea Change.”
 
Indeed, change will be the theme at Sears Point in the years and decades to come. Today, it is a 960-acre saltwater lake overlying land that dropped six feet during its twelve decades of isolation. As time passes, we will watch and measure ongoing change as the tides deposit sediment year after year with every cycle of the tides until, one day, the elevation of the site will be high enough to grow a marsh throughout. We expect that to take 15–30 years depending on the amount of sediment available and the pace of sea level rise.   

​Wildlife treats and surprises


​While a fully developed marsh will benefit a wide diversity of fish and wildlife as well as people, its benefits as habitat have already begun. With at least eight miles of new and muddy shoreline, plus hundreds of marsh mounds emerging from the depths, the shorebirds are making a showing. Stilts, avocets and curlews are among the species taking advantage of the new habitat.  Wintering ducks will be in for a surprise when they arrive but, until then, mallards, pintails and shovelers are already taking advantage. These are just a few of the more obvious species.
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It would be a treat, but not a surprise, to see a harbor seal or two breaking the water’s surface; there is a haul-out nearby and this new open water may be attractive to them. River otters, too, will almost certainly explore here. We don’t yet know which wildlife species are below the surface, but it’s a good bet that there are bat rays and even leopard sharks exploring this new habitat. 
 
Last week, while I was inspecting the new levee, I encountered a new visitor. I noticed a group of turkey vultures congregating at the water line and wondered what they were eating. I walked down and found what appeared to be the carcass of a spawning salmon! ​
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​Clearly, this fish was confused and it probably had followed the new current in. Perhaps it floated in, dead before arrival. Regardless, it was interesting to see. As the marsh develops and the interior channels mature, Sears Point will provide excellent nursing habitat for young salmon preparing for their entry into the Pacific Ocean.    
 
The coming years will be full of surprises and the new trail opening next year will be a terrific place from which to watch for them. Look for a trail opening in 2016 and begin your own exploration.
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    Sonoma Land Trust is a local nonprofit based in Santa Rosa, CA, that conserves scenic, natural, agricultural and open lands in Sonoma County for the benefit of the community and future generations. This blog focuses on SLT's stewardship team, whose members do hands-on work to directly protect, restore, and safeguard the land for generations to come.

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