Tamara Ann Hiltunen

Doctoral Researcher

Ecology and Genetics
Faculty of Science

Tamara Hiltunen

Originally from South Africa, I have always been interested and involved in Ecology. I am a registered professional natural scientist with the South African Council for Naural Scientific Professions (SACNASP). I specialized in wildlife management, Protected area proclamation, management, and auditing as well as environmental management. On moving to Finland in 2017, I decided to reinitiate my academic career by studying Ecology at the University of Oulu. My Masters Thesis focused on the "Svalbard reindeer winter diets: interannual variation and long-term changes based on serum δ13C and δ15N values". I am now doing my Ph.D. on the "Foraging ecology of semi-domesticated reindeer in a changing climate" with Profession Jeffery Welker in the Arctic Ecology and Biogeochemistry research group. The principal objective of this project is to determine the current foraging ecology of semi-domesticated reindeer in response to climate change perturbations using stable isotopes and GPS telemetry. Essentially, has climate change affected where reindeer forage and what they eat?

Research interests

  • Reindeer food webs, vegetation and climate interactions
  • Foraging Ecology
  • Movement Ecology
  • Reindeer diets
  • Stable Isotopes
  • Ecosystem Ecology
  • Herbivory

Researcher information

Contact information



Visiting address

University of Oulu
Arctic Ecology & Biogeochemistry Lab
Ecology and Genetics Research Unit
Pentti Kaiteran street 1
FI-90014 Oulu

Postal address

University of Oulu
P. O. Box 4300
90014 University of Oulu