Taking A Walk On The Lichen Side In Portland, OR

On Saturday, March 28th, come explore the fuzzy and funky world of lichens in Portland, OR.

a textured tree bark background with the words 'land of the lichen, with science friday and the world forestry center', with different lichen textures featured inside the word 'lichen'When: March 28th, 2020 from 3:30 – 5:00 p.m. Doors open at 3:00 p.m.

Where: World Forestry Center – Miller Hall, 4033 SW Canyon Rd, Portland, OR 97221

Tickets: $15. This is a family-friendly event.

This event has been postponed due to concerns over the spread of COVID-19.


Portland, we’ve really taken a lichen to you. That’s why we’re coming to the World Forestry Center for a day full of those fuzzy growths on trees, roofs and gravestones: lichens! Join Science Friday and the World Forestry Center as we highlight these special symbiotic organisms. Meet experts in the forests, see select specimens from near and far, and maybe even discover your favorite lichen that you didn’t know existed.

This event will feature an on-stage presentation and interactive stations. Come early to stop by all the tables!

Meet The Experts

  • Sarah Jovan is a Research Ecologist with the U.S. Forest Service in Portland, Oregon. She uses bioindicator data in collaboration with air quality managers, regulators, land managers, and local universities to inform policy, track emissions sources, and establish management guidelines.
  • Linda Geiser is the Program Leader for the U.S. Forest Service Air Program in Washington, D.C. She has coordinated lichen monitoring on national forests since 1987, published air pollution thresholds for lichens, and promoted use of lichen data by federal land management agencies to assess and protect air quality.
  • Hannah Prather is a Postdoctoral Research Associate with the Ramirez Lab at Reed College. She received her PhD from Portland State University, researching the human impacts on biodiversity and ecology in the urban communities of lichen and moss (they’re important too!).
  • Ed Jahn is OPB’s Executive Editor for Science and Environment as well as the Executive Producer of OPB’s outdoor program, “Oregon Field Guide.” He is a fellow with the Institutes for Journalism and Natural Resources and an advocate and teacher of better science communication.

Interactive Station Hosts

Included with your event ticket is free admission to the World Forestry Center Discovery Museum from 10:00 a.m. – 3:00 p.m. the day of the event.

Event attendees will have the opportunity to sign up for a post-event nature walk through the Hoyt Arboretum with one of their knowledgeable volunteers. Tours run about 90 minutes and explore a variety of themes.

This event is a co-production with the World Forestry Center.

a logo featuring the words 'word forestry center' and a hand with a halo of leaves around it, in the shape of a tree

This event is also presented in partnership with OPB and Science Talk. We are a part of Science Week 2020!

logo for oregon public broadcasting, featuring the letter O, P, B with backgrounds in blue, light green and dark green respectively logo for oregon public broadcasting, featuring the letter O, P, B with backgrounds in blue, light green and dark green respectively


World Forestry Center’s Miller Hall is ADA accessible. Please inquire for any special assistance needs.


Meet the Writer

About Diana Plasker

Diana Plasker is the Experiences Manager at Science Friday, where she creates live events and partnerships to delight and engage audiences in the world of science.

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