Monthly Archives: February 2015

New Postdoc Joins the Mack Lab

Rebecca Hewitt recently finished her PhD with Drs. Terry Chapin and Teresa Hollingsworth at University of Alaska Fairbanks. Her dissertation investigated whether plant-fungal interactions after wildfire influenced seedling establishment at and beyond current treeline. She explored the effects of post-fire mycorrhizal community structure on the physiological performance of treeline seedlings and collaborated with the Scenarios Network for Alaska and Arctic Planning to investigate the landscape implications of her plot-level studies by implementing a mycorrhizal-submodel in simulations of tree migration using the fire-vegetation-climate model ALFRESCO. As a postdoctoral researcher in the Mack Lab at Northern Arizona University she will investigate the belowground plant traits and plant-fungal interactions that confer access to nitrogen released from thawed permafrost.

Mack Lab Welcomes a Visitor

Mélanie Jean is currently visiting the Mack Lab to process moss samples for isotope analysis that she collected near Fairbanks, Alaska. Mélanie is a Ph.D. student in Jill Johnstone’s Northern Plant Ecology Lab at the University of Saskatchewan. She is studying the functional role of mosses in driving successional dynamics of boreal forests.


Mélanie Jean sampling mosses at her study site in  Murphy Dome, Alaska.
Mélanie Jean sampling mosses at her study site in Murphy Dome, Alaska.