Salt Creek Tiger Beetle Educator Guide

There's the atlas beetle that's black and shiny like a newly washed Harley Davidson motorcycle. There's leafcutter ants that slice leaves off of trees with a cut as clean as a butcher's knife would make. (Those leaves become fungi, which is actually what they eat.) I'd never seen anything like a violin mantis before. This bark-colored creature flexes at the joints as it moves to make it seem more like a robot.

"Eewww!!" That's what a lot of people say when they see bugs. Kay Klatt, Supervisor of the Butterfly and Insect Pavilion at Omaha's Henry Doorly Zoo, says, "That's perfect. That's what gets people interested, especially young people. What is that? What does it do? How does that work? That's what might motivate someone to want to work with insects when they grow up."

The staff couldn't stop telling me about the creatures as they showed them to me. They talked about how many times they've been bitten or what species have bitten them, but they even did that with enthusiasm. I learned a lot about many types of bugs in a short amount of time. But the other thing I learned is that rare and fragile creatures like Salt Creek tiger beetles are in good hands when people like this are looking out for them. The odds are stacked against the tiger beetles, but if they make it, it will be because there are people with a passion to help them.

The passion will be a test of patience for the next several months. All the staff can do with the Salt Creek tiger beetle larvae is feed it. To do that, its food is placed at the top of a tube of soil, then the larvae will come to the top to get it. I was surprised to learn that's about all the staff can do — watch and wait until (hopefully) the larvae turn into beetles and then can be released into saline habitats near Lincoln next spring.

The Salt Creek tiger beetle is one of the most endangered species in the United States, with only two to five hundred beetles left. They're found only in a small saline wetland area just north of Lincoln, Nebraska. We visited the wetland with Mitch Paine, a former research assistant at the University of Nebraska, Lincoln who worked with the beetles and comes back every summer to photograph the Salt Creek tiger beetles.

Produced by Diego Moreno / QUEST Nebraska. Beetle photographs by Mitch Paine.

Generally speaking, these habitats are the marshes, sand beaches, mudflats and the shallow waters of our rivers and creeks whose soil is saturated with moisture either permanently or seasonally; such areas may also be covered partially or completely by shallow pools of water.

They are also nature’s best defense against climate change and subsequent sea-level rise, because of two important functions they perform: they help reduce the concentrations of greenhouse gases through their ability to sink carbon; and store and regulate water. In other words, they act as sponges absorbing any overflow of water.

The federal government came to understand how biologically productive wetlands are and in 1977 enacted the Clean Water Act, the primary federal law in the US governing water pollution and limiting wetlands destruction. The law also created requirements that if a wetland had to be drained, developers at least had to offset the loss by creating artificial wetlands.

Wetlands have historically been the victim of large-scale draining efforts for real estate development, flooding them for use as recreational lakes or agriculture. Ironically, wetlands absorb and protect the surrounding ecosystem from the polluted run-off coming from the agricultural lands that displaced them.

Since 2000, more than 300 wetland restoration projects have been commissioned, varying in size from the 0.7-acre large 12^th Street Reconstruction Project in Alameda County to more than 13,000 acres being restored as a part of the South Bay Salt Pond Restoration Project in San Mateo County. However, the collective size of the projects (58,889.5 acres across California) is dwarfed when you consider that the state has lost 95 percent of its wetland habitat in the past 125 years.

Worldwide, it is estimated that by 1993 half of the Earth’s wetlands had been drained, according to a report published in the New Scientist.

Below you’ll find a map detailing the restoration projects taking place in the San Francisco Bay Area that shows information of their size, location and construction status.

View Wetland Restoration Projects–Northern California in a larger map

Listen to The Changing Bay radio report online.

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This is one of those environmental stories where one event, seemingly far in the past, can have a surprising ripple effect into the future. Most of us think of the Gold Rush and picture prospectors panning for gold in streams and rivers. But some miners used more industrial techniques like hydraulic mining. Using massive, pressurized hoses, they washed down entire mountainsides to get to the gold. (Check out this clip from the KQED special "Saving the Bay" for more).

As a result, millions of tons of sediment washed into rivers and streams in the Sierra foothills and made its way down to San Francisco Bay.  Amazingly, that process has taken decades, creating a murkier bay in the meantime.  Ten years ago, scientists at the US Geological Survey noticed the bay was clearing. While that can have many causes, scientists believe that the sediment pulse from the Gold Rush had finally worked its way out of the system.

It seems like the story would end there, but sediment has a complex role in the bay. Some ecosystems, especially wetlands, depend on sediment.  Salt marshes are built on every high tide by sediment that gets trapped in the plants.  These wetlands are also continually sinking as the soil settles, so this growth is key for keeping them at the right elevation. Less sediment in the bay means there's less for the wetlands, which could be an issue. But there's one thing that makes it worse: sea level rise. Some estimates say that the bay could rise by 55 inches by the end of the century.  That means sediment will have an increasingly important role in the future, one that state agencies are just starting to plan for.

Listen to The Changing Bay radio report online.

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Dave Feliz calls it "the bird highway in the sky."

Feliz works for California Department of Fish and Game, as area manager for the Yolo Bypass Wildlife Area, and he's talking about the Pacific Flyway.

Millions of migratory birds travel the same route every year, called the Pacific Flyway, stretching from the north slope of the Brooks Range in Alaska down to the tip of South America. An important stopover for all of those birds on the Flyway is the Central Valley, and the Yolo wildlife area in particular. Traveling south in the winter, it's the first large area for landing that’s not frozen. The Sacramento Delta, flat and wet and full of reeds, provides lots of food and shelter. And so do the thousands of acres of rice fields in the Central Valley.

The Yolo Bypass area is actually a flood-control zone, a mix of native vegetation and stubble from harvested rice fields. So it serves many uses, and has many "stakeholders" working together – farmers, county engineers, wildlife biologists, state and local governments.

And another, more unexpected stakeholder: children. Over the past 10 years, says Robin Kulakow, executive director of the Yolo Basin Foundation, more than 30,000 grade-school students have toured the levees and ponds of the Yolo Bypass Wildlife Area.

Peak migration season is now. It started in November and lasts till the spring rains come, usually in March. Migratory birds are at the wildlife area year-round, because so many types of birds migrate at different times of year, to different locales. And whichever birds migrate south for the winter, those same birds migrate north after the winter. But right now, through March, is the best time to view the waterfowl and migratory birds at Yolo, wildlife experts say.

Migrating birds can be hazards for aircraft. Listen to the Birds vs. Planes radio report online. You can also check out photos from the story below, or see the full set on flickr.com.

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Quest Educational Resources

 Print Guide - Crissy Field

 Crissy Field KML file

 Tips to get the kids in your life out into nature

 Designing an Exploration on Google Maps

Additional Links

• Golden Gate National Parks Conservancy — Crissy Field Center