Research Program:
My research program primarily focuses on Arctic aquatic systems, which are particularly suited for research on the influence of climate on biological communities. My focus has been on quaternary environmental change, specifically on invertebrate assemblages in lake sediments. This includes both an investigation of the current limnological and biological communities within a biogeographical context, as well as using paleolimnological techniques, multivariate statistics, and modeling to develop transfer functions to reconstruct past environments. Andrew Medeiros, Ph.D.
Elders Lake, Rankin Inlet I am also interested in the cause of recent shifts in the trophic systems of lakes and ponds. Medeiros and Quinlan (2011) found a nested secondary relationship with nitrogen along with a primary temperature gradiant that explained a significant amount of variation in Chironomid assemblages (Insecta:Diptera:Chironomidae). This relationship with nitrogen could be due to increased terrestrial inputs, or possibly due to recent increases in atmospheric deposition.
In conjunction with the Nunavut Research Institute I have been developing methods to determine the level of biological contamination in a local stream that runs through Iqaluit, Nunavut. The stream has several point-source inputs from legacy contamination, airport runoff, industrial runoff, and residential wastes that enter the stream at numerious portions of its reach as it flows through urbanized areas of Iqaluit. This has caused a significant shift in the benthic community that we can detect with simple biomonitoring methods. Headwaters of Apex River, Iqaluit
Iqaluit native flowers
Summary Reports:

Benthic Monitoring Program
Biomonitoring Project

inuk translation
Inuktitut Translation

Chironomid Biogeography
Field Summary

inuk report translation
Inuktitut Field Summary

(Images ©2006 , Andrew Medeiros)
Copyright © 2006; iNORTH INC.
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