
Always supportive and inspiring to all.
Always prepared and organized for students.
Encourages students to think independently.
Brings energy and passion to every lesson.
Great Professor!
Dr. Alex Callen is a Lecturer in Vegetation and Restoration Ecology at the School of Science, University of Newcastle, Australia. She earned her Doctor of Philosophy, Bachelor of Environmental Science (Honours), and Bachelor of Environmental Science from the University of Newcastle. Before joining academia full-time, Dr. Callen served as a Conjoint Lecturer from 1/2/2019 to 1/2/2020, Course Coordinator for Biological Sciences from 1/7/2018 to 31/12/2018, and Casual Academic in the School of Environmental & Life Sciences from 28/2/2014 to 30/11/2018 at the University of Newcastle. Prior to 2013, she worked for 16 years as an environmental scientist and ecologist in government and industry positions.
Dr. Callen's research centers on conservation and biodiversity (100% focus), including applied ecological research, bioacoustics, citizen science, community science, ecology, environmental management, environmental monitoring, flora identification, reintroduction science, restoration ecology, threatened species management, and vegetation survey & management. Her specific focus includes the recovery of threatened species in response to ecological restoration to mitigate multiple environmental stresses, fine-scale habitat manipulations for amphibian survival, the role of community science and science art communication in biodiversity protection, and human experience. She has published key works such as: "Looking Forward: Evaluating Management Scenarios for an Isolated Amphibian Population in a Dynamic Coastal Environment" (Ecology and Evolution, 2026); "The only way is down: placing amphibian ponds on plateaux protects against Gambusia colonization" (Restoration Ecology, 2024); "The effect of salt dosing for chytrid mitigation on tadpoles of a threatened frog, Litoria aurea" (Journal of Comparative Physiology B-Biochemical Systems and Environmental Physiology, 2023); "Severe wildfires promoted by climate change negatively impact forest amphibian metacommunities" (Diversity and Distributions, 2023); and "Uncovering inbreeding, small populations, and strong genetic isolation in an Australian threatened frog, Litoria littlejohni" (Conservation Genetics, 2023). Her scholarship is reflected in over 780 citations on Google Scholar, highlighting her influence in the field of conservation science.