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JRBP('O'O) July-August 2025 Newsletter

Goats grazing
 
July-August 2025
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ANNOUNCEMENTS
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Jasper Ridge presentations at ESA 2025!
Jorge Ramos will be attending the Ecological Society of America annual meeting in Baltimore, MD, next week. If you are attending, find Jorge at the various ESA SEEDS events; Wednesday‪ Panel on Careers at a Research Station withOBFS friends; and Thursday poster session to learn about our new wildfire resilience initiatives at JRBP ('O'O).
 
2025 Mosquito treatment days at Searsville Reservoir
The County Mosquito and Vector Control will be carrying out their annual spraying to control mosquito larvae in Searsville at Jasper Ridge Biological Preserve ('Ootchamin 'Ooyakma). The second date only serves as a back-up in case there are technical issues. Next dates include: 
  • Thursday, September 4th and 5th
  • Thursday, October 2nd and 3rd
 
Leslie Shao-ming Sun Field Station Renovation Updates
Building construction is set to resume the second week of August and is expected to be completed by the end of October 2025. 
 
New weather station
PG&E has installed a weather station on an existing utility pole between the field station road and the Sand Hill fence.  This station joins the network of 1,300 weather stations PG&E has constructed in California to monitor local weather and improve wildfire safety.  The link is Synoptic Data ViewerThis complements the existing weather resources provided by Jasper Ridge.
 
New Publications
Frangos C., Kamets, B., Sonawane, C., & Dirzo, R. (2025). Acorn dispersal location and predation risk beneath nurse plants in a Californian oak woodland. Forest Ecology and Management594, 122978
Student researcher and Mellon grant awardee, Chrysanthe Frangos, investigated the interaction between acorn dispersal location and predation risk beneath nurse plants in the Californian oak woodland at Jasper Ridge.
 
Congratulations, Kiara, for your Award for Outstanding Research in Earth Systems!
Kiara Fufunan was awarded the Earth Systems Award for Outstanding Research for her undergraduate honors thesis “Assessing the biogeochemical impacts of prescribed fire on nitrogen cycling in chaparral: Implications for ecosystem recovery and land management”. Kiara worked with Dr. Alandra Lopez, Katie Huy, and Prof. Scott Fendorf. Click here to read her honors thesis.
 
New blog!
Read the new blog summarizing the highlights of Jasper Ridge Biological Preserve ('Ootchamin 'Ooyakma) during the Environmental Justice Through the Lens of Indigenous Peoples: Research Agendas to Address Unanswered Questions Conference. Presenters included Joey Torres, Richard Torres, and Bernadette Quiroz, members of the Muwekma Ohlone Tribe, who shared some of their current collaborative projects with JRBP ('O'O)
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IN THE NEWS
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Chinmay Sonawane, Maya Xu, Natalie Ward, and Rodolfo Dirzo, a team of Stanford University students, faculty and Jasper Ridge affiliates published a new article titled Global decline of apex scavengers threatens human health in PNAS. The Stanford Report wrote a wonderful summary of their article, read more here.
 
Professor Barnabas Daru was named a 2025 Sloan Research Fellow and was elected as a Fellow of the Linnean Society of London earlier this summer. Dr. Barnabas Daru is being recognized for his major contributions to plant biogeography and biodiversity science.
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RESEARCH
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New Research
Research using Oakmead Herbarium specimens is on the rise!
Rong Liu, a postdoctoral scholar in the Dept. of Biology with the Daru lab, is investigating relationships between plant functional traits (e.g. specific leaf area) at large biogeographic scales.
 
Norzin Tenzin, PhD student in the Dept. of Biology in the Guzman lab, is investigating interactions between arthropods and native and introduced plants across Central Asia and Turtle Island using herbarium specimens.
 
Emily Humphreys, PhD student in the Tribble lab at the U. of Washington, is investigating the role of abiotic stress tolerance in botanical evolution onto specialist substrates, using onions (Allium) as a test case. 
 
Once postdocs at Stanford, professors at other universities return to Jasper Ridge to revisit their studies
Bernard Kim, Asst. Prof. at Princeton University was a postdoctoral scholar with Prof. Dmitri Petrov, and they are now collaborating to build an encyclopedia of North American fruit flies (Drosophila). 
 
Cherie De Vore, Asst. Prof at U. of Arizona was a postdoctoral scholar with Prof. Scott Fendorf, and she revisited 2021 and 2022 sites to compare soil biogeochemistry in the serpentine and chert grasslands at the preserve.
 
Research project highlight of the month
Learn about the Jasper Ridge Microclimate Sensor Array project being conducted by Prof. Jeff Dukes.
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EDUCATION
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Educational visits brought six summer programs and their student cohorts to Jasper Ridge, along with docents from Año Nuevo State Park! Student cohorts from the Doerr School of Sustainability programs SURGE, SESUR, and Young Investigators came to the Ridge. We also had programs from the Wu Tsai Neuroscience Institute and Ohlone College's Summer STEM Bridge return. For the first time, we hosted pre-college students enrolled in the course "Spiritual Ecologies" at the Humanities Institute, and we enjoyed the rich discussions about our place in nature.  
 
In all, approximately 150 students had the experience of morning guided tours at Jasper Ridge. During the month of July, docents fostered camaraderie and shared with guests learning and teaching experiences about the preserve's ecosystems and research.   
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STEWARDSHIP
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Summer is here, and we are excited for the third summer of our Stewardship Intern Program! Starting in June, two Stanford students, Atash Heil and Jaime Yu (docent class of 2025!) will be interning at the preserve for 10 weeks this summer to help to continue collecting data from the fuel reduction monitoring plots, support invasive species management, and explore independent projects. Stop by to say hi to Atash and Jaime! They will be presenting their final research projects on the main campus on Aug 28, 2025.
 
Wildfire Resilience at JRBP('O'O)
  • Maintenance of the perimeter fuel break was completed on July 23 primarily focused on the Westridge boundary. Stanford University and JRBP('O'O) are committed to maintaining the shaded and fuel breaks along the previously treated perimeters. To read more about this update, read Sheena’s latest blog: Westridge Fuel Reduction Maintenance completed July 2025. A big thank you to our colleagues from Wildfire Resilience for their support!
     
  • Goats and sheep returned to the preserve for annual maintenance in the Boething area.  Grazing will be completed next week. Blog header picture by Jorge Ramos
 
  • Our neighbor, SLAC National Accelerator Laboratory, will be carrying out their annual tree maintenance under the SLAC lines within JRBP('O'O). The work will be carried out during the month of August.
 
Invasive plant species management.
Sheena continues to develop the first preserve-wide invasive species assessment and mapping effort with the help of Atash and Jaime. Additionally, Sheena has been initiating and coordinating management events with staff, docents, and volunteers, focusing on two priority species: stinkwort (Dittrichia graveolens) and Fuller’s teasel (Dipsacus sativus). Please reach out to Sheena if you are interested in supporting invasive management and participating in future management events.
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THANK YOU! GRACIAS!
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Your support is essential in all of our research, educational and stewardship activities!
 
Thank you, docents, for helping researchers with their projects: Jerry Hearn, Dan Quinn, Teal Derrer
 
Thank you to the docents who lead educational tours in June and July—your energy, time and support are greatly appreciated! Adelaide Nye, Alix Marduel, Atessa Anoshiravani, Bob Siegel, Catherine Magill, Christine Martens, Claire Elliott, Dan Quinn, Dawn Neisser, Esther Tok, Geoff Baker, Helen Quinn, Jackie Magno, Jane Moss, Jerry Hearn, Kelly Benitez, Klaus Porzig, Mary Bernstein, Orianna Min, Paul Heiple, Sarah Macway, Stu Kortez, and Teal Derrer.
 
Thank you to all docents who have supported stewardship related projects, which included field work and trainings: Rebecca Reynolds, Mary Bernstein, Paul Heiple, Kit Gordon, Perry McCarty, Alice Cummings, Teal Derrer, Nona Chiariello, Catherine Magill, Diane Renshaw, Dawn Neisser, John Rawlings.
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SUPPORT JASPER RIDGE
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To support JRBP ('O'O) in its new challenges, please visit our Donate page (link here), thank you!
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PICTURE OF THE MONTH
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Summer is here, and we are excited for the third summer of our Stewardship Intern students, Atash Heil and Jaime Yu! Read the blog to learn more about Atash and Jaime. They will be focusing on stewardship efforts at the preserve and working with researchers, faculty, and docents. Photo credit: Sheena Sidhu.