Subject: Postdocs:UArizona.WildAnimalMicrobiomes. *Research Topics: Stress physiology, microbial ecology, microbiome, wild rodents, bioinformatics *Location: Petrullo Lab Department of Ecology and Evolutionary Biology University of Arizona *Description: The Petrullo Lab is hiring a postdoctoral researcher to join our NIH-funded study of the relationship between stress physiology and the gut microbiome in wild rodents. The overarching goal of this project are to use field-based experimental manipulations in wild animals to elucidate connections between ecological stimuli of the host HPA axis (e.g., population density, food availability) and downstream changes in gut microbiome communities. Other goals include: 1) identify precise microbial traits that respond to activation of the host HPA axis, including changes in microbe-microbe interactions 2) investigate immune mechanisms mediating host-microbe responses 3) begin linking these mechanisms to host health and fitness outcomes The postdoc will be involved in field work, wet lab work, bioinformatics, and other project management roles related to this work. The postdoc will also have the opportunity to develop their own independent research questions and projects using these and other data related to host-microbe interactions within an ecological and evolutionary context. *Qualifications: - Ph.D. in Biology, Ecology or related field - Demonstrated record of publications in related areas - Prior fieldwork experience, especially working with small mammals, a plus - Research/professional experience with bioinformatic approaches relevant to microbiome analyses - Enthusiasm for joining a fast-growing and multi-disciplinary lab - Excellent leadership, communication, and collaborative skills *Position: -Fully-funded by NIH -multi-year (3 year) possible position -Ideal start date is some time Spring 2026 (flexible) *How to Apply: Please send your CV and a cover letter (including a brief description of relevant experience and research interests) to Lauren Petrullo (laurenpetrullo@arizona.edu) *Deadline: Please apply by December 1st, 2025, for full consideration. *Contact: Lauren Petrullo, Ph.D. Assistant Professor Department of Ecology & Evolutionary Biology University of Arizona https://www.laurenapetrullo.com laurenpetrullo@arizona.edu "Petrullo, Lauren - (laurenpetrullo)" (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)