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PODCAST

In Defense of Plants Podcast

In Defense of Plants

Plants are everything. They are also incredibly interesting. From the smallest duckweed to the tallest redwood, the botanical world is full of wonder. Tune in for a podcast celebrating everything botany.

science & medicine natural sciences

All Episodes

01:08:00

Ep. 479 - Insights into Nightshade Defenses

In Defense of Plants Podcast ·

2024/06/23

Plants cannot run away from the herbivores that eat them, therefore plants have evolved numerous strategies to defend themselves from being consumed. Plant defenses are as varied as the plant kingdom and the ways in which they operate will blow your mind. We are joined by Dr. Rupesh Kariyat who studies plant defenses in a variety of nightshade relatives including the tomato. Tune in as we discuss how these plants defend against herbivory and learn how human activities such as mowing may have

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01:01:08

Ep. 478 - Milkweed Defense De-Escalation

In Defense of Plants Podcast ·

2024/06/16

Plant defense compounds are great for the plants that produce them as they can ward off herbivore attacks. But what happens when a group of specialists evolves a way to utilize said compounds? Such is the case for milkweeds (Apocynaceae) and milkweed butterflies (Danaina). A long evolutionary history together kicked off an evolutionary arms race driven by chemical ecology that is turning into a case of chemical de-escalation for many plants within this family. Join me and Dr. Tanya Livshultz as we

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00:53:45

Ep. 477 - Juncus, What a Rush!

In Defense of Plants Podcast ·

2024/06/09

Join Chief Botanist for NatureServe Wes Knapp and me as we take a deep dive into an all-too-often overlooked group of plants - the rushes (genus Juncus). Rushes are fascinating and beautiful plants when you get to know them, and the genus has a lot of secrets waiting to be revealed. From their unique morphological characters to what it takes to describe a new species, who better to talk to than one of North America's rush experts. This episode was produced in part by Robert, Thomas, Valerie, Joan,

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00:29:26

Ep. 476 - Ashes, Roses, and the Great Southern Brood

In Defense of Plants Podcast ·

2024/06/02

Conservation Biologist Sara Johnson returns to the podcast to talk about some of the botanical rabbit holes we have been exploring in recent weeks. We discuss ash (Fraxinus spp.) and rose (Rosa spp.) diversity and wax poetic about our time experiencing the majesty of the Great Southern Brood of periodical cicadas. This episode was produced in part by Valerie, Joan, Mohsin Kazmi Photography, Cathy, Simon, Nick, Paul, Charis, EJ, Laura, Sung, NOK, Stephen, Heidi, Kristin, Luke, Sea, Shannon, Thomas,

en-US

00:47:26

Ep. 475 - Island Restoration Needs Plants

In Defense of Plants Podcast ·

2024/05/26

Islands are hotbeds for unique biodiversity. Strange and unique island plants form the foundation of strange and unique ecosystems. Sadly, the human hand has not been kind to Earth's island ecosystems, especially in recent times. The introduction of invasive species like rats, cats, and goats have brought many islands to the brink of collapse and that is why organizations like Island Conservation exist. Join me and Head of Innovation David Will as we discuss what he and his colleagues are doing to

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00:58:31

Ep. 474 - Untangling Cryptic Diversity

In Defense of Plants Podcast ·

2024/05/19

Sometimes the differences between species are vast (e.g., a maple and an oak) but other times they are subtle to the point of requiring a trained eye and essentially learning a new language. So-called cryptic species are extremely challenging to understand, but that is why spending time in the field can be so rewarding. Moreover, to understand cryptic species is to better understand biodiversity on Earth. Join me and botanist Brett Budach as we explore four genera (Lupinus, Xyris, Dichanthelium, and

en-US

00:39:49

Ep. 473 - Root Evolution Revisited

In Defense of Plants Podcast ·

2024/05/12

There is no denying that roots are one of the most important organs on a plant. However, unless its an epiphyte, root activity takes place underground, largely out of site and out of mind. This has not stopped my guest today from trying to understand the origin and evolution of these amazing structures. We revisit a conversation with plant evolutionary biologist Dr. Sandy Hetherington whose work spans hundreds of millions of years of root history. Join us as we explore the early days of root

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00:53:15

Ep. 472 - Snorkelwort & Friends are X-Treme!

In Defense of Plants Podcast ·

2024/05/05

Any organism that ephemeral gravel puddles home must be ready to deal with extremes. That is what makes snorkelwort (Gratiola amphiantha) and its aquatic neighbors so darn cool. It's what also makes it so very rare. Join me and Anna Wyngaarden as we take a deep dive into how she is trying to solve some of the many mysteries surrounding how plants like snorkelwort, mat-forming quillwort (Isoetes tegetiformans), and black-spored quillwort (I. melanospora) eke out a living in tiny granite pools. This

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00:44:52

Ep. 471 - Chasing Rare Oaks

In Defense of Plants Podcast ·

2024/04/28

Boynton/Alabama sandstone (Quercus boyntonii) and Georgia oaks (Q. georgiana) are among the rarest oaks in North America and yet we know so little about them. This paucity of knowledge can make conservation difficult, but that doesn't stop people like Patrick Thompson from trying. Join us as we discuss the multifaceted efforts aimed at keeping these trees from going extinct.This episode was produced in part by Mohsin Kazmi Photography, Cathy, Simon, Nick, Paul, Charis, EJ, Laura, Sung, NOK, Stephen,

en-US

00:51:05

Ep. 470 - Rethinking Water Lettuce

In Defense of Plants Podcast ·

2024/04/21

Water lettuce (Pistia stratiotes) has long been maligned for its invasive tendencies. This floating aquatic aroid grows fast and responds well to poor water quality, and because of this, states like Florida spend lots of time and money on trying to eradicate it. However, a combination of fossil end recent genetic evidence suggests that we should rethink our approach to water lettuce in Florida. Join me and Dr. Jason Evans as we discuss how data tell a different story that suggests at least some

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00:42:54

Ep. 469 - Blue Butterworts & Friends

In Defense of Plants Podcast ·

2024/04/14

The Southeast is one of North America's biodiversity hotspots. Any trip through this region will be rewarded with lots of botanical splendor if you know where to look. Join Conservation Biologist Sara Johnson and me as we reminisce about a recent botanical excursion and learn about a fraction of the botanical diversity we met along the way. This episode was produced in part by Mohsin Kazmi Photography, Cathy, Simon, Nick, Paul, Charis, EJ, Laura, Sung, NOK, Stephen, Heidi, Kristin, Luke, Sea,

en-US

00:41:25

Ep. 468 - Plants, Structure, and Habitat

In Defense of Plants Podcast ·

2024/04/07

I have said it before, and I will say it again: plants ARE habitat. Nowhere is this fact more apparent than in the field of wildlife ecology. From food to shelter, one simply can't understand the innerworkings of nature without understanding plants. Join me and Wildlife Ecologist Dr. Chris Moorman as we look at why plants are so important to conservation efforts. This episode was produced in part by Mohsin Kazmi Photography, Cathy, Simon, Nick, Paul, Charis, EJ, Laura, Sung, NOK, Stephen, Heidi,

en-US

00:55:09

Ep. 467 - Roots & the Struggle for Nutrients

In Defense of Plants Podcast ·

2024/03/31

Competition for nutrients is a major driver of plant evolution, especially in nutrient-poor soils. As such, plants have evolved myriad ways of getting a "root up" on the competition. Dr. Jim Dalling joins us to discuss two recent discoveries related to two species with distinct and incredible root adaptations aimed at maximizing nutrient capture in highly competitive tropical ecosystems. This episode was produced in part by Cathy, Simon, Nick, Paul, Charis, EJ, Laura, Sung, NOK, Stephen, Heidi,

en-US

00:48:57

Ep. 466 - Fire in the Mountains

In Defense of Plants Podcast ·

2024/03/24

The Appalachian region may not readily seem like a fire-prone region, but parts of it certainly are. Fire can be an important tool in sustaining biodiversity, but modern understanding of its role is limited. That is why people like Dr. Don Hagan study the effects of prescribed fire in the Appalachian Mountains and beyond. Join me and Dr. Hagan as we explore fire as a tool for ecosystem restoration and find our just how much we still have to learn. This episode was produced in part by Cathy, Simon,

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00:52:12

Ep. 465 - Studying Ancient Wildfires

In Defense of Plants Podcast ·

2024/03/17

Wildfires are familiar to those living on Earth today, but what about in the past? How does one go about studying ancient wildfires through deep time? Some of the answers lie in coal deposits. Join me and Dr. Ian Glasspool as we explore how he studies wildfire events dating back hundreds of millions of years and marvel at the amazing stories his data are able to tell! This episode was produced in part by Cathy, Simon, Nick, Paul, Charis, EJ, Laura, Sung, NOK, Stephen, Heidi, Kristin, Luke, Sea,

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00:53:43

Ep. 464 - Back from the Brink

In Defense of Plants Podcast ·

2024/03/10

Good news is hard to come by in the world of plant conservation, but it is out there! Take, for instance, some recent examples on Santa Cruz Island in which the recovery of a handful of endangered plants, including island bedstraw (Galium buxifolium) and Santa Cruz Island Dudleya (Dudleya nesiotica), has been so successful, they have been delisted. That doesn't mean conservationists no longer have to worry. Join me and John Knapp from The Nature Conservancy as we explore the ins and outs of plant

en-US

00:38:13

Ep. 463 - Digitizing an Extinct Tree

In Defense of Plants Podcast ·

2024/03/03

How does one breath life into an extinct tree only known from fossils? There are a lot of answers to this question, but my guest today decided to go digital. Tim Stonesifer is the Assistant Director for Media Technology at Colby College and the person responsible for creating the 3D reconstruction of Sanfordiacaulis densifolia that was discovered by Dr. Gastaldo and colleagues (Ep. 462). Join us as we explore his process and what it was like to take a dive into paleobotanical reconstructions. This

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00:55:10

Ep. 462 - Resurrecting an Ancient Toilet Brush Tree

In Defense of Plants Podcast ·

2024/02/25

Fossil hunting is like playing the lottery, your odds of hitting big are infinitesimal, but it can happen. Such was the case for Dr. Bob Gastaldo and colleagues when they unearthed the remains of Sanfordiacaulis densifolia, an extinct tree from the Carboniferous Period unlike anything we have ever seen. Join me and Dr. Gastaldo as we take a deep dive into why this tree is so strange and what it can tell us about an ancient ecology. This episode was produced in part by Cathy, Simon, Nick, Paul,

en-US

00:42:24

Ep. 461 - Litter Trappers Revisited

In Defense of Plants Podcast ·

2024/02/18

Litter trapping plants don't worry about soil, they make their own! Because so many species in the tropics grow either epiphytically or in nutrient poor soil, some of them have turned to alternative solutions. Their anatomy is such that they collect everything from dead leaves to bird droppings. A diverse community of soil microbes and invertebrates can then go to work to create nutrient rich humus. What's more, litter trapping abilities can be found in plants as distantly related as ferns and

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01:07:29

Ep. 460 - Floral Chemistry Revisited

In Defense of Plants Podcast ·

2024/02/11

For Dr. Rob Raguso, the phrase "stop and smell the roses" takes on a whole new meaning. Dr. Raguso studies the intricate world of floral chemistry. You are undoubtedly familiar with some of the wonderful odors flowers produce but such tantalizing smells are only the beginning. The world of floral chemistry is quite remarkable and the function of the myriad substances they produce go much deeper than simply pollination. We revisit a conversation that will put a whole new spin on your appreciation of

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319 results

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