Congratulations to Maddie Sadler! Maddie graduates this weekend with a Masters degree from Northwestern University. Well done, Maddie! Last night the Program in Plant Biology and Conservation hosted a very nice ceremony for 17 graduates. Stuart, Gretel, and Maddie’s parents, brother, & friends attended, including Maddie DiMarco. It was great to see everyone at this joyful event.
Maddie’s thesis title: Asteraceae species richness along Minnesota prairie corridor: what types of prairie harbor the most diversity
Searching for somethingLea, Elif, and Riley at a volunteer appreciation eventLea Richardson in the prairieLea does the reverse-sauna in the freezer.Lea and AmyLea in the prairieLeah watching the Runestone Days parade.Volunteers show Sam, Lea and me how to dissect heads and count achenes. From left, Suzanne, Bill (in back), Char, me, Art, Aldo, Sam, Lea, Suzie.Lea in 2016the scholar at workTeam members learning the ways of aphids. Lea Surveys Plants at Staffanson Prairie Preserve August 2018Gina, Matt, Lea, Taylor, and Ben 2015The Team from summer 2017Lea and Alex Team Echinacea 2015First row (L to R): Lois, Art, Leslie, Amy, Laura; Second row: Susie, Char, Gretel, Anne, Stuart, Allen, Mike, Ivy, Lea, Scott, Shelley. Not pictured: Aldo, Susan, Michele, Marty, Naomi, Sam, Kathryn, Lou, Suzanne, Nicolette, Sarah.Lea and Ashley in Perkins.Interns, graduate students, volunteers, and full-time scientists convene for the Team Echinacea annual potluck! 2019
Lea Richardson died on Friday April 3rd due to complications from melanoma. She was surrounded by friends and family in a hospital in California.
Lea joined Team Echinacea in June 2015 when she participated in a Research Experience for Teachers internship at our field site in Minnesota. It was a bold move for a teacher from Los Angeles public schools to try out research in rural Minnesota. She loved working with the team and developed a passion for fieldwork. She also relished fun times like swimming at the lake after work and adventures with the team. Lea liked it so much she stayed longer than she planned that summer and returned the next summer.
Lea joined the Ph.D. program in Plant Biology and Conservation at Northwestern University and conducted research at our field site in Minnesota. Lea was a valued member of the department and looked out for those excluded from opportunities and advancement in science. She was a stellar student earning many academic honors.
Lea was an accomplished teacher and believed in the power of education to empower students—especially those from disadvantaged backgrounds. In addition to classroom teaching, Lea engaged students from diverse backgrounds in her research and conservation activities in the field and in the lab. She modeled a growth mindset in formal and informal settings.
Lea enjoyed facing the many challenges (physical, intellectual, and logistical) of conducting ecological research. Lea’s dissertation made substantial contributions to basic science and to conservation. She used multi-year experiments to investigate how prescribed fire and other disturbances affect the timing of flowering of prairie plant populations and their persistence in the face of environmental change. We are proud of Lea and of the good work she did for people, the prairie, and the planet. She made many diverse contributions through her work with Team Echinacea.
After her graduation Lea returned to California as a post-doctoral research fellow. Lea dedicated her substantial talents to science, mentoring, and conservation. She continued to collaborate with Team Echinacea on research papers and projects until she fell ill in spring 2025.
Team Echinacea gained so much from Lea. Lea will be missed.
Lea Richardson in a prairie in western Minnesota.
UPDATE: Memorial service Friday, May 8th at 2 pm All Saints Church 132 N Euclid Ave Pasadena, CA 91101
Team Echinacea has been using discord for communication during the field season, for announcements, and for organizing. If you want to join our discord server, please contact Stuart. We’d love to hear from you.
For the past several years we have been investigating effects of prescribed fire on native ground-nesting bees in remnant prairies and restorations across our fragmented prairie landscape. We have a paper about effects of fire on the abundance and diversity of nesting bees in prep for a peer-reviewed journal. We are posting recommendations from this investigation now as a one-page non-technical document.
Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) and by the National Science Foundation.
For the past few years we have been studying effects of prescribed fire on pollination, pollinators, and plants across our fragmented prairie landscape. We have a paper about effects of fire on pollen that we are preparing to submit to a peer-reviewed journal. We are posting recommendations from this investigation now as a one-page non-technical document.
Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) and by the National Science Foundation.
For the past few years we have been studying effects of prescribed fire on pollination, pollinators, and plants across our fragmented prairie landscape. We have three papers we are preparing for submission to peer-reviewed journals. From each, we have recommendations for land managers interested in conserving native prairie bees and plants. We are posting these recommendations now in a one-page non-technical format.
The first paper is about prescribed fire effects on pollination and pollinator visitation. Read the recommendations that are based on the paper.
Expect two more one-pagers tomorrow.
Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) and by the National Science Foundation.
The Echinacea Project flog has been silent since shutting down lab activities at the Chicago Botanic Garden. Even though lab work has ceased, other work has been progressing quietly. After Thanksgiving we will post updates.
We are continuing to monitor the Viola pedatifida (Prairie Violet) and Comandra umbellata (Bastard Toadflax) experiments. The Viola plants are continuing to develop new growth and produce pods consistently, with dried seed pods collected daily. Between August 20th and September 21st, 131 pods were collected! The seeds will be sorted into randomized groups for use in remnants and experimental plots. At the end of the field season, the Viola will be covered in a mulch of straw for overwintering.
The Comandra initially struggled with sun exposure in the transplant tub, but have since rebounded! There are currently 12 plants growing, alongside gallium and a large number of volunteer species. These have been left undisturbed to avoid accidentally removing any Comandra host plants. See the spreadsheet below for a full update on each plug.
As the season nears its end, the seasonal members of the Echinacea Project have all returned to school. This week, Grace flew back to California to start her junior year at UC Santa Cruz, leaving only a lone juggling ball for us to remember her by. Now only me (Maddie DiMarco) and Maddie Sadler remain as interns to conclude the field season. With measuring done in the experimental plots and (almost) all demo sites finished, our main focus is harvesting. We spent the first few days of the week harvesting whenever possible, filling up several bags with harvested echinacea heads. Soon, they will all be ready for cleaning and counting of achenes.
A monarch nectaring on thistleOne of the goats, which we have named DirtA leopard frog at ExPt02, who was not as fast as I am
However, we cannot harvest in the rain, and this week had lots and lots of rain. While we are trapped inside, Maddie and I have been working with our data, ensuring that there are no missing, duplicate, or incorrect records. During a break in the rain, I also trekked out to exPt01 to revisit some of the plants we needed to check.
Massive Chicken-of-the-WoodsA secret mushroom spotFound en route to exPt01
The rain has brought us many boones. Mushrooms were plentiful, found near the goat paddocks and the experimental plots, including a magnificent Chicken of the Woods. We have also seen our first salamanders of the season. Two eastern tiger salamanders were spotted on the roads—we shuttled them to safety. You can tell by my face how excited I was.
Me, clearly having the best moment of my lifeTiger salamander #1Tiger salamander #2 with Maddie and I
