Ian Brennan

Ian Brennan is a Fellow at The Australian National University, affiliated with the Research School of Biology in the Department of BIO. His research focuses on evolutionary biology and ecology, particularly within the context of reptiles and amphibians. Brennan is a member of the Keogh Group and is associated with the Division of Ecology and Evolution. He has received several awards, including the ARC Discovery Early Career Researcher Award (DECRA) in 2025 and the Ernst Mayr Award in 2018. His contact details are available at ian.brennan@anu.edu.au, and his profile page provides further information on his work and publications.

Ian G. Brennan is a Postdoctoral Researcher at The Australian National University, specializing in macroevolution, phylogenetics, comparative methods, and herpetology. His research explores evolutionary processes across diverse taxa, with a focus on lizard and frog diversification. Brennan's work investigates how geological and ecological factors, such as mountain formation and biome turnover, influence speciation and morphological evolution. He employs phylogenomic and comparative approaches to uncover patterns of diversification, hybridization, and biogeography. His studies often highlight the role of competition and geographic barriers in shaping biodiversity, particularly in regions like the Andes and Australia. Brennan also emphasizes the importance of open science and taxonomic rigor in addressing the biodiversity crisis.