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California Native Plant Society

Santa Clara Valley Chapter

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Forty Years of Change in a Serpentine Grassland, a talk by Lauren Hallett 
Tuesday, June 11, 2024 07:00pm

jrbp serpentine

Zoom registration:

Serpentine grasslands support a relatively high proportion of California’ endemic plant diversity, providing a colorful display every spring. Which species – and which colors – we see every year are highly variable. Here Professor Hallett shares findings from 40+ years of annually observing species composition in a serpentine grassland at Jasper Ridge Biological Preserve ‘Ootchamin ‘Ooyakma. She describes how gopher disturbance and climate variability generating a shifting mosaic of species abundances over space and time. While serpentine grasslands have largely resisted invasion by non-native grasses due to their harsh soil conditions, she outlines how atmospheric nitrogen deposition, especially in conjunction with high rainfall years, can facilitate invasion into the system. She will close with a discussion of management options to maintain serpentine plant diversity into the future.

Lauren Hallett is an associate professor in the Biology Department and Environmental Studies Program at the University of Oregon. Her lab aims to produce “usable” science to improve ecosystems.

This talk will be live streamed on YouTube ( - registration NOT required) and Zoom ( - registration required)

Location  Zoom registration:
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Upcoming Events

Sun Jun 23 @ 9:00AM - 12:00PM
Bird and Plant ID Walk at Lake Cunningham Park (San Jose)
Tue Jun 25 @ 7:00PM - 09:00PM
Native Plant ID
Fri Jun 28 @ 9:00AM - 12:00PM
Friday Edgewood Restoration
Fri Jun 28 @ 7:00PM - 08:50PM
Photography Group - Photo Sharing Meeting
Sat Jun 29 @ 8:00AM - 10:00AM
Lake Cunningham Native Garden
Sat Jun 29 @ 9:00AM - 11:00AM
Community Work Day at the Native Plant Garden in Kirk Park
Fri Jul 05 @ 9:00AM - 12:00PM
Friday Edgewood Restoration
Sat Jul 06 @ 8:00AM - 10:00AM
Lake Cunningham Native Garden
Sat Jul 06 @ 9:00AM - 11:00AM
Community Work Day at the Native Plant Garden in Kirk Park
Tue Jul 09 @ 7:00PM - 08:30PM
Conservation Committee