Rebecca Tarvin's guest appearances

Rebecca Tarvin

They Blinded Me with Science

Aquarium of the Pacific AquaCast

Lecture Archive 2017

Mark Martinez

Ruth Gates

Daniel Goldman

Kerry Kriger

Andrew Pershing

Judith Kildow

Rick Moonen

Alex Hall

Murray Fisher

Ken Kurtis

Jonathan White

Christine Whitcraft

Robert Schallmann

Sandy Trautwein

Lee Kats

OwlTail

Rebecca Tarvin recorded this Aquacast at the Aquarium on October 12, 2017. Tarvin is a Ph.D. student in the Evolution, Ecology, and Behavior program at the University of Texas at Austin. She has studied frogs in Ecuador and Colombia and studies in the evolution of toxicity in poison frogs.

Rebecca Tarvin - Why Don’t Frogs Poison Themselves?

Lecture date: October 12, 2017. Rebecca Tarvin discusses how animals like poison dart frogs evolve genetic resistance to toxins and how this can affect whether they become toxic.

Lecture Archive: Rebecca Tarvin

Rebecca Tarvin’s doctoral research focuses on the evolution of chemical defense and resistance to self-intoxication in poison frogs (Dendrobatidae), which are native to Central and South America. Chemically defended poison frogs sequester distasteful alkaloids from insects in their diet and secrete these chemicals from dermal glands for defense. Dendrobatids are often brightly colored to warn potential predators, and the levels of toxicity vary considerably from one species to the next and from one population to another. Rebecca discusses her work on how the genetic and physiological basis of alkaloid resistance relate to phylogenetic and ecological patterns across Dendrobatidae. Tune in to learn about how poison frogs evolved the ability to resist their own toxins!  

<p><a href="http://www.rebeccatarvin.com/" rel="nofollow" target="_blank">Rebecca Tarvin</a>’s doctoral research focuses on the evolution of chemical defense and resistance to self-intoxication in poison frogs (<a href="http://amphibiaweb.org/lists/Dendrobatidae.shtml" rel="nofollow" target="_blank">Dendrobatidae</a>), which are native to Central and South America. Chemically defended poison frogs sequester distasteful alkaloids from insects in their diet and secrete these chemicals from dermal glands for defense. Dendrobatids are often brightly colored to warn potential predators, and the levels of toxicity vary considerably from one species to the next and from one population to another. Rebecca discusses her work on how the genetic and physiological basis of alkaloid resistance relate to phylogenetic and ecological patterns across Dendrobatidae. Tune in to learn about how poison frogs evolved the ability to resist their own toxins!  </p>

Monday, February 23rd, 2015 - Rebecca Tarvin talks about how poison frogs avoid poisoning themselves