April 12, 2017, 3:30 p.m.
Building 8 Auditorium - PLEASE NOTE CHANGE OF LOCATION
DUE TO RENOVATION OF BUILDING 3 AUDITORIUM
U.S. FOREST SERVICE
"Lichens and Mosses as
Global Indicators of Ecosystem Health"
In 2016, moss monitoring burst
into public awareness with national news of metal contamination
in Portland, Oregon neighborhoods. The Oregon Dept. of
Conservation responded with instrumented measurements and
improvements to the regulation of the glass blowing industry.
The study, led by US Forest Service research scientists, is part
of a long legacy of biomonitoring conducted by the agency to
assess and map air pollution. In fact, lichens and mosses are
used world-wide to assess fertilizing and acidifying air
pollutants, metals, persistent organic compounds, to indicate
intensity of climate change on the landscape, and to track
changes in biodiversity. In this talk you will be introduced to
the beauty and diversity of lichens and mosses and how to ‘read
the trees’ to assess environmental health. Dr. Geiser will show
examples from studies conducted by the agency across the US and
in collaboration with European researchers.
About the Speaker:
Dr. Linda Geiser is the National Program Leader for the US
Forest Service Air Program. From 1989-2014 she served as an
ecologist for the Pacific Northwest and Alaska national forests.
She has studied lichen response to air pollution and climate,
using lichen community surveys, lichen elemental analysis, and
passive sampling to assess air quality status and trends in
national forests and parks throughout the western US. She is an
author of over 60 related scientific articles and books
including Macrolichens of the Pacific Northwest (2009) and
Biology of Lichens–Symbiosis, Ecology, Environmental Monitoring,
Systematics and Cyber Applications (2010). She contributed to
Pardo et al. (2010) Assessment of Nitrogen Deposition Effects
and Empirical Critical Loads of Nitrogen for Ecoregions of the
US and was lead author for the ecological effects chapter of the
Landers et al. (2008) Western Airborne Contaminants Assessment
Project report. Nature and lichens are her passion and she
enjoys sharing that joy with others.
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