[Ccb_faculty] FW: CalBotSoc Speaker October 13 (THIS THURSDAY!): Noah Teller

Tue Oct 11 14:21:09 PDT 2022

CalBotSoc Speaker October 13 (THIS THURSDAY!): Noah Teller

Please join us to hear Noah explain his work!

*From:* The California Botanical Society [mailto:membership at calbotsoc.org]
*Sent:* Tuesday, October 11, 2022 10:10 AM
*To:* Amy Litt <amy.litt at ucr.edu>
*Subject:* CalBotSoc Speaker October 13 (THIS THURSDAY!): Noah Teller

Botany Speaker Series

Upcoming talk:

Noah Teller
This Thursday!

*October 13th, 2022*
7-8 pm PT

"Plant community structure responses
to invasive grass removal in wet meadows of the Sierra Nevada*"*

<https://calbotsoc.us7.list-manage.com/track/click?u=c632809fa2b75323f2418bb1e&id=28b3e4fa9a&e=b69ac08598>

Talk Description

While invasive plant management is an important part of any land
conservation program, the methods used to control invasive plants can
create conditions that are conducive to reinvasion, or invasion by a
secondary species. Many invasive plant management projects focus entirely
on eradicating a target invader, without significant follow-up to
understand how the invader's removal has impacted the local ecosystem. One
example of this is the Kern Velvetgrass project initiated by the Vegetation
Management branch of Sequoia National Park. In 2006, the invasive
bunchgrass *Holcus lanatus* (Velvetgrass) was observed by wilderness ranger
Laura Pilewski in wet meadows and riparian areas near the southern border
of the park. Further surveys revealed a significant infestation of
Velvetgrass throughout the 12 miles of the canyon within the park, as well
as along riverbanks to the south in Sequoia National Forest. Technicians
began treating infestation sites, primarily by manually removing
Velvetgrass using a small hand adze*. *This effort increased in size and
scope from crews of 3 to crews of 15-18, living in the wilderness and
removing Velvetgrass for 3 months of the year, and continued at this level
for almost 15 years. While it is clear that Velvetgrass populations have
dramatically declined and been replaced by mostly native plants, no
systematic plant survey had been conducted as of 2018 to evaluate the
recovery of ecosystem characteristics like species richness and
biodiversity, nor to evaluate whether recovering communities ultimately
resembled uninvaded areas.

In 2019, I conducted a scientific survey of treatment sites and nearby
uninvaded areas using Modified Whitaker plots, which measure species
richness in nested plots at increasing scales to provide data for species
accumulation curves. I additionally overlaid traditional 1m^2 plots with 50
grid intersections in each subplot to evaluate relative cover and
diversity. I used linear mixed effects models to evaluate differences in
summary characteristics, and Nonmetric Multi-Dimensional Scaling alongside
PERMANOVA to evaluate compositional changes. I found that across all
measures - species richness, biodiversity, composition, and rate of species
accumulation, that post-invasion sites were not significantly different
from nearby uninvaded areas. This shows that significant amounts of
trampling and soil disturbance over more than a decade ultimately did not
cause any undesirable changes in treated areas, indicating a resounding
success for this conservation effort.

*Join us this Thursday*
*October 13th, 2022*
*7-8 pm PT*

*Zoom link*
<https://calbotsoc.us7.list-manage.com/track/click?u=c632809fa2b75323f2418bb1e&id=316b4135b2&e=b69ac08598>

Bio

Noah Teller is a PhD candidate in the Loralee Larios Restoration Ecology
Lab at UC Riverside and a Burned Area Emergency Response (BAER) technician
at Sequoia & Kings Canyon National Parks. His academic work focuses on
understanding and mitigating the unintended consequences of land management
actions in the context of invasive species, including post-fire scenarios
and delicate wilderness areas. Before coming to UCR, he received
a Bachelor's degree in Biology from Whitman College, where he studied the
impact of cattle grazing on the distribution of *Viola adunca*, the host
plant of the endangered Myrtle's Silverspot Butterfly (*Speyeria zerene*)
at Point Reyes National Seashore for his thesis. After graduating Noah
worked as a Wilderness Ranger for the US Forest Service in Colorado, an
ADA/wilderness trail construction technician at Prairie Creek and Humboldt
Redwoods State Parks, and a Biological Science Technician at Sequoia &
Kings Canyon National Parks. He grew up in Berkeley, California and
developed an interest in wilderness and conservation through backpacking
and visiting Berkeley Tuolumne Family Camp in the summers with his family.
He is currently living in Richmond, California, and looking for new
opportunities to branch out into the conservation job market in the San
Francisco Bay Area.

*Talk Zoom link: *
*https://ucr.zoom.us/j/98594151297?pwd=NXlJQ1YrVW10a2N5d1BnRWVrMVdkZz09
<https://calbotsoc.us7.list-manage.com/track/click?u=c632809fa2b75323f2418bb1e&id=1df186b94c&e=b69ac08598>*

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*Upcoming dates! *

*2022 Botany Speaker Series *
October 13: Noah Teller, UC Riverside
November 10: Phebian Odufuwa, Boise State University
December 8: Brooke Rose, UC Riverside

*Are **YOU** an early career botanist?*

*Want to give a talk in 2023?Email us at membership at calbotsoc.org
<membership at calbotsoc.org;%20rlolliff at berkeley.edu?subject=Botany%20Speaker%20Series%20Talk>*

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