The first last SLEWS day of the year

Davis Senior High School at Yolo Bypass Wildlife Area
SLEWS Program | Sacramento Valley | February 4, 2020

Participating School
Davis Senior High School

Yolo County Resource Conservation District
Yolo Basin Foundation

Aaron Haiman, Environmental Scientist and Tribal Liaison, Sacramento-San Joaquin Delta Conservancy
Brian Keegan, Sacramento State Graduate Student
Randy Wittorp
Xerónimo Castañeda, Conservation Project Associate, Audubon CA

Summary of the Day
Of all the SLEWS projects so far this season, the two coldest days have BOTH been with Davis High School at the Yolo Bypass Wildlife Area! Our third and final field day was quite chilly and windy, but Davis students simply put on an extra layer and didn’t seem to mind. We attempted to warm up with a game of PVC golf (all four mentor groups were able to successfully transport the golf ball into the goal!) before heading out to finish our SLEWS project.

We had 106 container plants and 15 plugs to plant, and did quality control (securing tree tubes after some severe wind) on every plant on the four trestles. We thought we’d be lucky to finish all that before lunch. Imagine my surprise when the group finished…at 10:30am! Finishing early gave us time to to do some wildlife observation, and we were in luck because mentor Aaron Haiman is an excellent birder. He showed students how to use and focus their binoculars, and we set off on a birding adventure. Species we spotted included Horned Lark, Savannah Sparrow, Northern Harrier, Peregrine Falcon, Prairie Falcon, White-crowned Sparrow, Red Tailed Hawk, Western Meadowlark, blackbirds, and White-throated Swifts.

We also had time to do a reflection activity. Students found a spot to sit by themselves and had the opportunity to write a thank you card to someone who made their SLEWS experience possible. Students wrote note to mentors, restoration partners, their teacher, funders, guest speakers, and parent drivers – all people who were essential components of this project.

Since it was the last SLEWS Field Day, we had a mini celebration at lunch, complete with cupcakes decorated with trestle mounds and deer antlers! It was a throwback to photos students saw at the beginning of this project, an aerial view of deer trapped on a trestle mound taken when the bypass flooded last year. When the bypass floods next time, hopefully those stranded animals will find it to be much more suitable habitat, thanks in part to Davis students!

After lunch, students gathered to hear from Yolo Basin Foundation’s Corky Quirk, a bat expert. Corky even brought 3 live bats to show students (a pallid bat, a Mexican free-tailed bat, and a big brown bat). Students were absolutely enthralled by her presentation, and asked tons of excellent questions. Do all bats live in colonies? (No) How many babies do they have? (our native species tend to have just one per year) Does pregnancy affect their flight? (probably!) Are bats blind? (no) Do vampire bat bites hurt? (not really – their saliva contains an analgesic!) Corky discussed bats in the bypass and all around the world, and touched on topics like rabies, and white nose syndrome.

Like our first field day, during closing circle, we shared our favorite moment of SLEWS. On the first field day, however, many students answer was “the burritos!”. This time, only one student mentioned burritos – most students mentioned planting, birding, and bats as some of the highlights of their experience. What a great season with Davis High!

An invertebrate-heavy day in Winters

Winters High School at Putah Creek Dry Creek Confluence
SLEWS Program | Sacramento Valley | January 10, 2020

Participating School
Winters High School

Yolo County Resource Conservation District
Valerie Whitworth and Michael Barbour

Josh McCabe, Restoration Coordinator at ACRT Pacific
Lea Pollack, UCD Graduate Student
Marisa Alcorta, Apprenticeship Program Manager, Center for Land-Based Learning

Summary of the Day
Our second field day at the confluence of Putah and Dry Creek in Winters brought us many eager students, both familiar and new to the program.

A guest speaker joined us for opening circle – Jessa of the Xerces Society, an organization focused on invertebrate conservation. She spoke about the alarming decline in the population of the Western Monarch Butterfly (population down 86% from 2017 to 2018) and how the results of this restoration project will help support monarchs in their migration. We finished our opening circle with a game of “Where the Wind Blows” to identify similarities within our group.

After dividing into mentor groups and gathering our tools for the day, we headed down to the project site for our planting demonstration. Amy Williams of Yolo County Resource Conservation District began by introducing students to four of the plants we’d be planting that day – deerweed, toyon, fuschia, and wild rose. As these plants were passed around, students learned their ecological benefits and how to identify them. Then Amy demonstrated the main task of the day, planting trees, shrubs, and forbs. Each plant would be planted in specific spots along the irrigation line, and an emitter would be installed next to it to provide the plant with adequate water.

Mentor groups enthusiastically tackled this job in different areas, with some groups following to install “spaghetti” line to ensure the water would reach the plants. Once groups finished planting the larger plants, Amy showed them how to plug plant smaller “plugs” by poking holes in the ground using a “dibble”. We were all impressed by how much we accomplished by lunchtime!

After lunch, mentor Lea Pollack gave a presentation on the work she’s doing in her Ph.D. program. She studies behavioral ecology and works with black widow spiders. Students were surprised to learn that black widows have personalities! The more “aggressive” (not to people – to other spiders and prey) spiders build their webs in a different way than less aggressive individuals, and you can actually see the difference when the webs are sprayed with water! Mentor groups were each given a misted web (without a widow in it) and counted the number of “gum footed” lines in the web to figure out whether the spider that made it was aggressive or not.

During closing circle, students reflected on what they had learned that day. Many students shared facts about monarch migration, others shared the planting techniques they learned, and even more mentioned black widows – that they have personalities, that only the females build webs, and that the web structure can tell us about their behavior!

The final SLEWS day of the (school) year

Sacramento Charter High School at Clark Ranch 1
SLEWS Program | Sacramento Valley | April 17, 2019

Participating School
Sacramento Charter High School

Yolo Resource Conservation District
Rominger Brothers Farms
Bruce Clark

Bob Ream, retired
Corey Shake, Partner Biologist, Point Blue Conservation Science, NRCS
Dana Stokes
Jess Rudnick, UC Davis graduate student

Summary of the Day
For the final Field Day with Sacramento Charter High School (and final Field Day of the 2018 – 2019 SLEWS season!) we were back at our original site, Clark Ranch. Our first Field Day was here back in December, but for our second day we installed irrigation at a site in Woodland. It had been over 4 months since our day at this site and it was remarkable how much had changed. In December the site was so muddy we couldn’t bring vehicles in, and it rained intermittently throughout the day. This time, it was plenty dry to drive on and at eighty degrees was the hottest SLEWS day of the season!

Students were excited during breakfast to find a native butterfly we identified as a Painted Lady. We played PVC golf to connect with our mentor groups before heading out to see the plants we had planted back in December. As this site had experienced a lot of wind and some flooding with the stormy winter we had, our task was to replace bamboo poles, adjust tubes and emitters, and weed around the plants to increase their chance at survival. One student found caterpillars while working along the hedgerow and wondered if they might be Painted Ladies – the same species we saw earlier in the adult (butterfly) form.

After completing our restoration work, mentor Jessica Rudnick, a UC Davis Graduate Student, led the students in a fun educational activity. She explained that they would be investigative journalists, and their assignment was to figure out how the farm was addressing environmental issues. Students rotated between stations learning about pollination (and native habitat benefits!), weeds and cover crops, irrigation, and predators on the farm. Students got to try immature almonds and were surprised to find they tasted like cucumbers! And appropriately, as mentor Corey Shake was discussing predators on the farm, a Swainson’s Hawk flew overhead.

Once students had had a chance to learn about all aspects of the farm, they compiled their reports. Some students elected to share their findings – one memorable and report was a student who chose to be a critical reporter and delivered a hilariously negative story about the almond orchard.

After lunch, we celebrated student Jordan’s birthday before ending the day with a closing circle. Many students remarked that they really enjoyed seeing how much their plants had grown in the past four months!