Kat Receives Louise Constable Hoover Fellowship

Kat received a Louise Constable Hoover Fellowship from the Department of Biology! This fellowship is awarded annually to three senior graduate students in the Evolution, Ecology, and Behavior graduate program to support research expenses. Congratulations, Kat!

Kat and Beth Awarded CISAB Predoctoral Fellowships

Kat and Beth received predoctoral fellowships from Indiana University’s Center for the Integrative Study of Animal Behavior (CISAB)! This fellowship is awarded annually to outstanding IU graduate students who exemplify an integrative approach to the study of animal behavior through their research, teaching and other professional activities. Way to go, ladies!

For more information about CISAB, visit their website here.

Clarissa Publishes Manuscript in Journal of Experimental Biology

Clarissa’s manuscript on the effects of photoperiod on the gut microbiome and aggression was recently published in the Journal of Experimental Biology! In this study, Clarissa found that SD males and females exhibited distinct changes in the relative abundance of gut bacterial phyla and families, and that these changes were associated with aggressive behavior. Collectively, her findings suggest a role for the gut microbiome in modulating social behavior in seasonally breeding animals.

A link for the manuscript can be found under the “Publications” page and can also be accessed here.

Kat and Beth Present at SICB 2020

Earlier this month, Kat and Beth gave oral presentations at SICB 2020, the annual meeting of the Society for Integrative and Comparative Biology, in Austin, Texas! Beth shared her recent findings on how maternal gut dysbiosis via antibiotic administration affects offspring behavior in Siberian hamsters. Kat was selected to compete for the Division of Comparative Endocrinology’s Aubrey Gorbman Award for Best Student Oral Presentation, where she discussed how melatonin modulates seasonal changes in neurosteroid levels and territorial aggression in male Siberian hamsters. Way to go, ladies!

Happy Holidays from the Demas Lab!

On Saturday, members and friends of the lab gathered at Greg’s house for our annual Christmas party, featuring a delicious BBQ-themed meal and a fun white elephant gift exchange! From all of us at the Demas Lab, we wish you a wonderful holiday season!

Sarah and Eamonn Awarded Hutton Honors College Research Grants

Demas Lab undergraduate students Sarah and Eamonn were recently awarded Research Grants from IU’s Hutton Honors College to support their independent research projects! These grants are awarded each semester to exceptional IU undergraduate students to allow them to pursue serious academic inquiry, develop intellectual independence, and build research skills and techniques. Congratulations, Sarah and Eamonn!

Kat Publishes Manuscript in Hormones and Behavior

Kat’s manuscript on the role of melatonin in mediating seasonal transitions in aggressive behavior and circulating androgen profiles was recently published in Hormones and Behavior! In this study, Kat showed that male hamsters given a long-term, short day (SD)-like melatonin signal, either via timed melatonin injections or exposure to a SD light cycle, elevate territorial aggression and reduce circulating androgen levels in response to an aggressive interaction. Together, these findings suggest that SD males transition from synthesis to metabolism of circulating androgens following an aggressive encounter, a response that is modulated by melatonin and culminates in increased aggression.

A link for the manuscript can be found under the “Publications” page and can also be accessed here.

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