Kerry Knudsen is a Lichen Biologist who originated outside of academia and worked in construction until becoming fascinated by the natural world and immersing himself in desert lichens.In this episode we talk about the modern human approach to the living world, why the study of natural sciences is becoming increasingly popular among people outside of academia, the biosphere as a living machine, self-education using the internet, and more.  

A lichen is the symbiosis between a fungus and algae or cyanobacteria, many of which can go dormant for extremely long periods of time and tolerate harsh winds, drying out, being blasted with UV radiation, and slowly cooked on the rocks that they grow on. Some of them can live for thousands of years.

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What happened to the transgenic American Chestnut? In January of 2024 news broke out that a "lab error" had "compromised years of research" regarding the re-introduction of American Chestnuts into Eastern North American forests, this time with a simple 700 base-pair gene for blight-resistance inserted into the tree's genome. For those that don't know, an invasive fungus from Asia that was unintentionally introduced to North America devastated the entire population of American Chestnuts, rendering the species "functionally extinct". Within the last decade, however, through genetic engineering, the insertion of a single gene from the wheat plant that can break down oxalic acid has made chestnut blight nothing but a minor pest to the trees whose genome has been altered with it. 

In this episode, we talk with PhD student Erik Carlson from SUNY Syracuse's College of Environmental Sciences and Forestry about this "lab error", how it really wasn't that big of a deal on the long run, and how the project is still on track.

In this episode we talk about how we are explicitly NOT condoning it, how to harvest mycorrhizae from soil duff, what is "KNR" and what "IMO"s are, the paucity of study concerning mushroom diversity in the Davis Mountains and how some species there might be eventually extirpated due to the drying climate, the fungal genus Tarzetta, and more. The episode is polished off by a 40 question botany quiz.

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In this episode I sit down withAdam Black about planting fruit trees in the park, how to save the honeybees, why invasive species don't exist, and how to properly apply a glue-on moustache and select proper attire so as to "fit in" when botanizing in West Texas. /s

Adam Black is a field botanist and researcher with Bartlett Tree Research Laboratories and Arboretum who has traveled to numerous continents and countries researching oaks and conifers (he has nothing to do with permaculture, that is just a sick joke on my part).

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In this lecture we rant about Invasion Biology, Continents as Ecosystems, the concept of a "Living Machine", and David Bowie's package in The Labrynth.

PDF download for this rant : 

https://drive.google.com/file/d/1rL5WP8zI0-Oqh4DYkRFBpjk0tBrcP9Hl/view?usp=drivesdk

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This was a conversation I had with my friend Martin Grantham about how humans relate to the living world around them (or rather, how most of them don't) and the factors that influence it.

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How do plants evolve? How do plants speciate? What is allopatric speciation? What is sympatric speciation? How do plants like the Hawaiian silverswords evolve to be such big weird bastards while their ancestors on the mainlaind (the tarweeds) are so small? What the hell happened with the genus Echium (Boraginaceae) when it got to the Canary Islands? Why were islands the big reveal for how natural selection might work when Darwin saw his finches and what the shit? How can geology cause a new plant species to evolve? We cover all that and more in this here episode. Textbooks recommended in this podcast if you wanna be less of a dummy : Ecology of Plants by Gurevitch (3rd Edition) Evolution : Making Sense of Life by Carl Zimmer (the edition with the bunny on the cover). Both downloadable in PDF form from www.libgen.is

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Codi Lazar is a Professory of Geology at California State University San Bernardino and a passionate and utterly hilarious geologist. In this episode, we get into the weeds talking about a wide variety of topics such as how limestone forms, why some plants might be restricted to it, what "serpentinite" is, what's in story for the state of Nevada in the next few dozen million years, how related the granite that's beneath Joshua Tree National Park might be to the granite in the Sierra Nevadas (very), the former love affair between the African continent, Scottland, Newfoundland and Appalachia, and much more.

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The genus Baccharis is one of the largest and most diverse in the Composite Family, Asteraceae. It originated in South America a few dozen million years ago and has diversified and spread throughout South and North America and adapted to a variety of different habitats due to a number of key innovations such as tufted trichomes that secrete sticky wax, the abundant production of wind-dispersed seeds, and rapid growth, among other traits. When I was working for the railroad and frequently visiting abandoned industrial corridors in California, the genus Baccharis was one of the only native plants that was able to hold its own amidst the concrete, pollution and toxic soil of former industrial sites.

Today we talk with Baccharis researcher Gustavo Heiden from Southern Brazil about his research and study of this tough and remarkable genus, where it originated and what makes it so successful.

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Rants about scrub oaks in the sand dunes of West Texas, 500 million-year-old granite in Lawton Oklahoma and the obesity epidemic aflicting prairie dogs in nearby communities, plants that only grow on Limestone, arbutoid mycorrhizae and symbiosis between madrones and ecomycorrhizale soil fungi, the lack of large-scale native plant growers in Texas, etc.

Species featured here : 
Stenaria pooleana
Quercus aff. gravesii
Arbutus xalapensis
Cirsium turneri
Petrophytum caespitosum
Cercocarpus breviflorus
Baccharis pteronioides
Penstemon baccharifolius
Garrya goldmanii
Eriogonum hieraciifolium