
#18: Kerry Knudsen - The Magic of Lichen
04/12/21 • 55 min
1 Listener
You’re gonna be liken this episode. Well, let me rephrase that - you’re going to like this episode about lichen.
What’s a lichen? If you’ve hiked just about anywhere, you’ve probably seen one. They are colorful organisms that grow on rocks, tree branches, and even fence posts. Around where I live, I see lichens growing on people’s roofs, too!
I called them organisms because they are complicated. Sometimes they are characterized as symbiotic relationships between a fungi and an algae. But it’s much more interesting than that.
And there are few people better to help us learn about lichens and how to find them than Kerry Knudsen, a lichenologist at the University of Life Sciences in Prague.
Kerry’s personal story is equally fascinating as lichens themselves. Kerry got started in lichens later in life after a health condition derailed a long career in construction. And he’s gone on to discover over 60 new lichen species that were previously undescribed, founded the lichen collection at the University of California, Riverside, and has 161 peer reviewed publications on ResearchGate and more elsewhere.
So get ready to learn about lichens, how they live, what they do, how they propagate, how wildfire impacts them, and much more.
So, as Allie Ward likes to say in her Entertaining Ologies podcast, despite my preparation and research, I had a lot of freedom to ask a smart person stupid questions, and I thank Kerry for his patience and detail in his answers.
SHOW NOTESLinks
Andre Breton - the founder of Surrealism kept a lichen collection just for the beauty and inspiration
California Lichen Society
Rick Halsey of the California Chaparral Institute. See my past interview with Rick.
Steven Levitt - University of Chicago economist who analyzed the ranching use of the Amazon rainforest. He had a podcast episode with his solution.
Theodore Payne Foundation - Kerry mentioned working here for a period
Univ. of California Riverside Herbarium
Books
A Field Guide to California Lichens - Stephen Sharnoff
Macrolichens of the Pacific Northwest - Bruce McCune
Usnea is a genus with over 600 species, and is difficult to identify in the field
Support Us On Patreon!
Buy our Merch!
Music: Spellbound by Brian Holtz Music
License (CC BY 4.0): https://filmmusic.io/standard-license
Artist site: https://brianholtzmusic.com
Discover the Jumpstart Nature Podcast - entertaining and immersive, it's the nature fix we all need.
Check past Nature's Archive episodes for amazing guests like Doug Tallamy, Elaine Ingham, and Rae Wynn-Grant, covering topics from bird migration to fungi to frogs and bats!
You’re gonna be liken this episode. Well, let me rephrase that - you’re going to like this episode about lichen.
What’s a lichen? If you’ve hiked just about anywhere, you’ve probably seen one. They are colorful organisms that grow on rocks, tree branches, and even fence posts. Around where I live, I see lichens growing on people’s roofs, too!
I called them organisms because they are complicated. Sometimes they are characterized as symbiotic relationships between a fungi and an algae. But it’s much more interesting than that.
And there are few people better to help us learn about lichens and how to find them than Kerry Knudsen, a lichenologist at the University of Life Sciences in Prague.
Kerry’s personal story is equally fascinating as lichens themselves. Kerry got started in lichens later in life after a health condition derailed a long career in construction. And he’s gone on to discover over 60 new lichen species that were previously undescribed, founded the lichen collection at the University of California, Riverside, and has 161 peer reviewed publications on ResearchGate and more elsewhere.
So get ready to learn about lichens, how they live, what they do, how they propagate, how wildfire impacts them, and much more.
So, as Allie Ward likes to say in her Entertaining Ologies podcast, despite my preparation and research, I had a lot of freedom to ask a smart person stupid questions, and I thank Kerry for his patience and detail in his answers.
SHOW NOTESLinks
Andre Breton - the founder of Surrealism kept a lichen collection just for the beauty and inspiration
California Lichen Society
Rick Halsey of the California Chaparral Institute. See my past interview with Rick.
Steven Levitt - University of Chicago economist who analyzed the ranching use of the Amazon rainforest. He had a podcast episode with his solution.
Theodore Payne Foundation - Kerry mentioned working here for a period
Univ. of California Riverside Herbarium
Books
A Field Guide to California Lichens - Stephen Sharnoff
Macrolichens of the Pacific Northwest - Bruce McCune
Usnea is a genus with over 600 species, and is difficult to identify in the field
Support Us On Patreon!
Buy our Merch!
Music: Spellbound by Brian Holtz Music
License (CC BY 4.0): https://filmmusic.io/standard-license
Artist site: https://brianholtzmusic.com
Discover the Jumpstart Nature Podcast - entertaining and immersive, it's the nature fix we all need.
Check past Nature's Archive episodes for amazing guests like Doug Tallamy, Elaine Ingham, and Rae Wynn-Grant, covering topics from bird migration to fungi to frogs and bats!
Previous Episode

#17: Alvaro Jaramillo - Birding Your Best Life
My guest today is Alvaro Jaramillo. Alvaro is a highly regarded ornithologist and birder with a long list of authored books and published papers. Born in Chile, raised in Canada, he’s lived in California for the last several years where he operates “Alvaro’s Adventures”, a birding-centric tour company that specializes in combining birding with local cultures across the globe.
Alvaro has a BS in Zoology and a masters in Evolutionary Biology, and is an affiliated senior biologist with the San Francisco Bay Bird Observatory. Alvaro has a wealth of world-wide birding knowledge, is a contributor to Bird Watcher’s Digest, and actively engages in many birding forums. He even helped to identify a new bird species, Oceanites pincoyae (Pincoya Storm-Petrel), found in Chile.
In today’s episode we discuss how Alvaro developed his interest in birds. From authoring his guide to New World Blackbirds, to a fortuitous encounter in Canada that led him to the world of arranging and guiding tours, it is clear the avian adventures were a calling for Alvaro.
We discuss the origins of Alvaro’s Adventures, and some of his amazing global trips, such as his annual journey to Bhutan. And check out his Birds and Wine trip to Chile and Argentina as another great example.
We also talk about pelagic birding - he leads numerous pelagic trips in Northern California each year. If you are unaware of pelagic voyages, they take you far offshore onto the ocean to look for bird species that are next to impossible to see from land. And if that weren’t fun enough, you’ll often encounter whales, porpoises, sunfish, and many other amazing oceanic creatures.
We discuss the groundbreaking impact his Birds of Chile guide had on accelerating Chile’s birding evolution.
After a couple decades of engaging with the public in these capacities, he also has a lot of insight into helping people interpret, enjoy, and see the value of nature - and he offers a few tips and approaches that we can all use.
And while COVID-19 has been challenging, he has turned it into an opportunity to increase his outreach. In addition to many in-depth online workshops, he’s launching a new subscription based online birding community, called “Birding Your Best Life”. Its primary goal is to help people enjoy birds more, regardless of their circumstances and goals. It will include discussion communities, equipment reviews, video tutorials, and much more. As you’ll hear, he has big plans - you can sign up here to be notified of progress.
Other Links/Mentions
Alvaro's Facebook
Birds of Chile - field guide Alvaro, Peter Burke, David Beadle created that helped accelerate Chilean birding
Birdwatchers Digest - Alvaro has written for this publications for many years
National Audubon Society
New World Blackbirds - Alvaro's distraction from his PhD
Colombian Audubon
Debi Shearwater - Alvaro was a spotter with Debi Shearwater, the well known pelagic leader
Eagle Eye Tours - Canadian tour company Alvaro helped start
Field Guides - the larger tour company Alvaro joined after Eagle Eye Tours
Next Episode

BONUS Short: Leading Great Nature Field Trips
Today's episode is a short bonus that I've been planning for quite awhile - How to Create a Great Nature Field Trip. I cover many best practices, including creating a theme that ties your trip together, and to the organization you represent, how to pace your trip, both in content and activities, and tons of useful tips and tricks I've learned over the years in my professional life, as a guide, and in obtaining my Certified Interpretive Guide certification from the National Association of Interpretation (NAI).
The full transcript and show notes are at my Nature's Archive Podcast website.
I also briefly talk about the City Nature Challenge, which is coming up on April 30 through May 3, 2021. This is a friendly challenge between cities to document as much biodiversisty as possible using iNaturalist. It's a great activity for individuals or families, and serves as a great excuse to take note of interesting things all around us that are often overlooked. The aforementioned show notes discuss this further.
And I'll be back to my standard episodes on May 3, 2021. As a sneak preview, in the next couple of months you'll get to hear about prairies, bird observatories, mountain lions, feathers, and more.
Nature's Archive - #18: Kerry Knudsen - The Magic of Lichen
Transcript
[00:00:00] Michael Hawk: You're going to be liken this episode. Well, let me rephrase that. You're going to like this episode about lichen. So what's a lichen. If you've hiked just about anywhere, you've probably seen one. They are colorful organisms that grow on rocks, tree branches, and even fence posts and around where I live I see lichens growing on people's roofs, too.
[00:00:19] I called them organisms because they're complicated. Sometimes they're characterized a
If you like this episode you’ll love
Episode Comments
Generate a badge
Get a badge for your website that links back to this episode
<a href="https://goodpods.com/podcasts/natures-archive-205241/18-kerry-knudsen-the-magic-of-lichen-21191675"> <img src="https://storage.googleapis.com/goodpods-images-bucket/badges/generic-badge-1.svg" alt="listen to #18: kerry knudsen - the magic of lichen on goodpods" style="width: 225px" /> </a>
Copy