We report presence of low levels of alkaloids in “undefended” poison frogs (Hyloxalus, Allobates, Leucostethus, Solverstoneia, Rheobates [!!], also Amazophrynella, Eleutherodactylus…)
We provide a perspective about what this means for origins of chemical defense
1/5
Passive accumulation of alkaloids in putatively non-toxic frogs challenges paradigms of the origins of acquired chemical defenses https://t.co/dt47yXqfSk #biorxiv_evobio
Un hito extraordinario para la anfibiología
Alcanzamos las 9000 especies de anfibios a nivel global.
El número de especies aumenta gracias al trabajo de taxónomos en todo el mundo que descubren y describen nuevas especies.
La lista completa está disponible en AmphibiaWeb: https://t.co/gp2I3fxiSk
Para evitar que la única población conocida de Jambato sea sacrificada por el atropello del populismo pseudodesarrollista de Lulu, se necesita de urgencia geólogo o ingeniero civil para asesorar acerca del uso de dinamita en la construcción de la carretera Angamarca - El Corazón
Atelopus ignescens (the jambato) is a sentinel for environmental health. Please help us protect it https://t.co/nYKBl50H7U
If you are a geologist/engineer who could help advise on dynamite use for road construction pls DM me ASAP (urgent need)
✨ Join us in celebrating another year of Field Inclusive! ✨
We’re thrilled to invite you to our Field Inclusive Anniversary Webinar featuring Dr. Carolyn Finney, author of Black Faces, White Spaces.
📅 Date: Saturday, August 23, 2025 🕕 Time: 6:00–7:00pm ET 📍 Location: Zoom
Dr. Finney is a cultural geographer whose work reimagines the relationship between African Americans and the outdoors. You won't want to miss this important conversation.
🗓️ Public registration opens July 23, 2025!
A huge thank you to our generous sponsors who make this event possible: 🌲 Sierra Club Foundation ($2,000) 🧬 Tangled Bank Conservation ($500) 🟧 The Land at Hawkins Loop ($250)
Your support helps us keep our programs accessible and inclusive for all.
👉 Follow us for updates and register soon to save your spot!
In Ecuador, most reagents cost twice as much as they do in other countries. This is a hindrance to our scientific development.
Perhaps manufacturers could help with price
controls? @NEBiolabs
En Ecuador la mayoría de reactivos cuestan el doble de su costo comercial en otros países.
Es un freno a nuestro desarrollo científico. Será posible que los fabricantes ayuden con control de precios?
Later that day I’ll tell you about why dendrobatid poison frogs have the largest and smallest anuran genome measured to date! 🐸🧬
Tues June 24 4:00 pm Parthenon 2
6/7 #Evol2025
Tuesday we have two talks. First is Adri Jeckel who will provide an enticing first look at toxin feeding experiments in Epipedobates poison frogs. Can juveniles 👶 sequester as much toxins as adults? Come find out!
Tues June 24 2:45 pm Parthenon 2
6/7 #Evol2025
The Egan lab @RiceUniversity is presenting work at @evolmtg! Come see @MaryamRFaghihi talk about resource variation & sexual dimorphism in wasps today at 11am & Michaela Butler give a poster tomorrow on how oak hybridization influences soil microbial communities! #Evol2025
We are now seeking new grad students to serve in the 2026 cohort! GSAC represents student and postdoc interests to SSE Council and facilitates interaction among students, postdocs, and mentors at #Evol2025 and throughout the year. Apply by July 24!
Stop by and visit us at the Joint Student Committee Booth in the Grand Hall during #Evol2025. We have also set up a job posting board for students to find postdoc position information.