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This page has information about the Echinacea Project paper that was published in PNAS on 18 Sept 2023.
Updated 2 October 2023.   Reliable forecasts and accurate assessments of current conditions are critical for conducting prescribed burns. We are fortunate to have many weather resources. Here are the sources I use for planning and conducting prescribed burns.
We are still monitoring the fate of the lone patch of Hill’s thistle at Hegg Lake WMA. It is the only patch in our study area, as far as we know. On 8 September 2021, Jared & Stuart used a stake file to find corners of the plot that was shot in 2014. We flagged the corners and did not see any flowering rosettes within. We shot coordinates for five basal rosettes. Two rosettes were outside of the plot near the SW corner. We scanned nearby and saw no more rosettes outside the plot. One Asclepias viridiflora plant was flagged within the plot. I regret I took no photos.
You can find more information about our experiment on how fire affects the fitness of Cirsium hillii on previous flog posts regarding this experiment and on the background page for this experiment. Alondra, Connor, Maeve, and Marina finished their mini-internships with us. It was a great experience for them and us. We appreciate their contributions to science and conservation and they gained valuable experience. As part of their plant biology class, Alondra, Connor, Maeve, and Marina, who are juniors and seniors at Lake Forest College, worked on two projects to assess effects of prescribed fires on reproduction in Echinacea. In the lab, they gained hands-on experience in seed biology over three Wednesday afternoons, including cleaning, scanning, counting, developing hypotheses, and data management. To test their hypotheses, they developed a dataset and summarized their results. In class they presented posters and they are attached here. It was a wonderful mini-internship–thanks to Alondra, Connor, Maeve, and Marina, as well as Prof. Westley! Here are photos of insects I observed on Echinacea heads today.
The style-eating beetle was in or under a bagged head at SGC. Team Echinacea is off to a great start. We had a wonderful first week. We got a lot done and laid the foundation to work well as a team to accomplish much more this summer. This summer we aim to learn bunches and make many contributions to science and conservation. Look at our new shirts… Emma wasn’t in this shot, she getting ready for the state track meet. Best wishes from Team E to Emma & AAHS track and field team at the state meet today!!! Happy Juneteenth to all! None of us is free until we’re all free. Here’s the third version of our COVID-19 preparedness plan. So far, so good. We want to be a safe. Here’s the COVID-19 preparedness plan that we developed for summer fieldwork. It’s a work in progress, but we intend for this plan will guide our first week. At the end of the week we will discuss how it works, how it doesn’t, and make modifications for the following week. It’s been a long  …and just in time to avoid the snow in the forecast. It’s raining. We searched for sweet clover south of p1 (experimental plot 1) and pulled about 70 stems. We started walking through p1 and encountered three clumps of bird’s-foot trefoil in rows 31 & 32 near position 878. As we were extracting the three bad plants with garden knives, the skies unleashed a downpour. We hastily gathered the leguminous carnage and headed back to the Hjelm house. |
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