Come to the dark side-- we are seeking graduate students

Sept. 11, 2023

We are currently seeking exceptional and highly motivated graduate students to join the Johnson laboratory ( )! We are looking for an independent, self-motivated student who is passionate about pursuing research in aquatic ecology and conservation. Students in the lab can employ a diverse range of approaches, including laboratory...

frog body

It’s what’s in the frog that matters!

Sept. 22, 2023

The Johnson laboratory necropsy crew were hard at work this summer dissecting a total of 1,710 amphibians! Specifically this team dissected Pacific tree frog ( Pseudacris regilla ), western toad ( Bufo boreas ), California newt ( Taricha torosa ), rough-skinned newt ( T. granulosa ), and the American bullfrog...


What is in the water

Sept. 21, 2023

California faced an atypically wet season this year in which the Bay Area was hit with 9 atmospheric rivers resulting in San Francisco facing the second highest amount of rainfall in a single day throughout in the city’s history. With this increased rainfall in the winter, we wondered how this...

Jasmine at ASP

American Society of Parasitologists in Kansas City

Sept. 8, 2023

Research technician and recent undergraduate, Jasmine Groves, attended the 98 th annual meeting of the American Society of Parasitologists in Kansas City from July 13 th to the 16 th . Jasmine represented the Johnson laboratory by presenting her undergraduate research project titled, “A survey of the diversity of endohelminths...

jamie cut

Osprey's at the Denver Nature and Science Museum

June 7, 2022

Laboratory Manager Dana Calhoun MS, LVT, and Research Technician, Jamie Curtis, were invited to the Denver Nature and Science Museum to dissect P. Haliaetus commonly known as osprey. Rough dissections were made at the facility to remove the gastrointestinal tracts of five ospreys. Back in the lab, Dana has been...

thumnail field

That's a wrap!

Aug. 25, 2021

Field season for 2021 is offically over! This year the CA mega-drought was raging. In fact 45 ponds went dry in total, nearly half of our sites! Interestingly, 37 of those were dry before our second visit which typically occurs in July. We are exicted to investigate how amphibians parasites...