Jeff Welker and his Team Caribou deep in the Alaska Brooks Range

Jeff Welker in the Arctic

Field Research in Alaska

Jeff Welker


UArctic Research Chair, Professor
Arctic Ecology and Biogeochemisry

209 peer reviewed publications in international journals. The publications have been cited 16358 times, of which the most cited publication accounts for 1005 citations. The author has a h-index of 54.00. (Research Gate)



Research interests

  • Arctic Water Isotope Cycle and Sea Ice Interactions
  • Caribou & Reindeer food webs, vegetation and climate interactions
  • Pan Arctic Precipitation Isotope geochemistry and atmospheric processes
  • Ecohydrology of Arctic tundra and moisture sources of shrubs & trees
  • Arctic carnivore diet ecology, land and sea-scape use
  • High Arctic ice-river-nearshore marine foodweb interactions
  • Winter biophysical ecology and snow-vegetation ungulate interactions


Professional and community activities

  • UArctic Research Chairship
  • MOSAiC Arctic water isotope vapor network leader
  • NSF Geosciences Directorate Advisory Committee member
  • US Arctic Icebreaker Coordination Committee member
  • US ITEX Principal Investigator (since 1994)

Research groups

  • Leader, Arctic Ecology and Biogeochemistry