jrbp serpentine

Zoom registr ation: https://us02web.zoom.us/meeting/register/tZwuce2sp z4qEtJfI-9iP1_BVneCmErf0Vdw

Serpentine grasslands support a rel atively high proportion of California’ endemic plant diversity, providing a colorful display every spring. Which species – and which colors – we see e very year are highly variable. Here Professor Hallett shares findings from 40+ years of annually observing species composition in a serpentine grassla nd at Jasper Ridge Biological Preserve ‘Ootchamin ‘Ooyakma. She describes h ow 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 co nditions, she outlines how atmospheric nitrogen deposition, especially in c onjunction with high rainfall years, can facilitate invasion into the syste m. She will close with a discussion of management options to maintain serpe ntine plant diversity into the future.

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

This talk will be live streamed on You Tube (https://www.youtube.com/@CNPSS antaClaraValley - registration NOT required) and Zoom (https:/ /us02web.zoom.us/meeting/register/tZwuce2spz4qEtJfI-9iP1_BVneCmErf0Vdw - registration required)

jrbp
serpentine

Zoom registration: https://us02web.zoom.us/meeti ng/register/tZwuce2spz4qEtJfI-9iP1_BVneCmErf0Vdw

Serpentine gra sslands support a relatively high proportion of California’ endemic plant d iversity, providing a colorful display every spring. Which species – and wh ich 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 ‘Ooy akma. She describes how gopher disturbance and climate variability generati ng a shifting mosaic of species abundances over space and time. While serpe ntine grasslands have largely resisted invasion by non-native grasses due t o their harsh soil conditions, she outlines how atmospheric nitrogen deposi tion, especially in conjunction with high rainfall years, can facilitate in vasion into the system. She will close with a discussion of management opti ons to maintain serpentine plant diversity into the future.

L auren 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 (https://www.y outube.com/@CNPSSantaClaraValley - registration NOT required) and Zoom (https://us02web.zoom.us/meeting/register/tZwuce2spz4qEtJfI-9i P1_BVneCmErf0Vdw - registration required)