Arnott aquatic ecology Lab


My research team uses empirical approaches to understand the factors that regulate the abundance and distribution of organisms across the landscape. Using a combination of experimental studies and the analysis of spatial and temporal data, we investigate how local environmental conditions (biotic and abiotic) and dispersal influence biodiversity. We are also interested in determining what role biodiversity plays in maintaining ecosystem function and how biodiversity and function are influenced by the addition and removal of disturbances.

In our current research program, we are investigating these ecological processes in the context of several environmental stressors impacting lakes on the Canadian Shield: 

1)  factors influencing the recovery of lakes from acidification,

2)  the impact of declining calcium on zooplankton communities,

  1. 3) the effect of the exotic invertebrate predator, Bythotrephes, on aquatic food webs

  2. 4)the influence of climate change on lakes.


Our Research

Summer jobs for undergraduates - there are several opportunities for summer research projects this year.  Visit our undergraduate research page for details.

Jan 12, 2016 - Our paper investigating variation in the effect of Cu on Daphnia life-history responses to Chaoborus kairomones is now available.  Congratulations on your paper, Colleen - but more importantly - congratulations on the birth of your daughter last week!

Nov 26, 2015 - James’ propagule pressure paper available as an On-line First article in Biological Invasions, DOI 10.1007/s10530-015-1022-0

Nov 14, 2015 - Shakira’s review on Bythotrephes and Ca decline is now on-line at Environmental Reviews.

October 18, 2015 - Congratulations James Sinclair and Amelia Cox!  “The quick and the dead: copepods dominate as cladocerans decline following invasion by Hemimysis anomala” accepted for publication in CJFAS.

April 19, 2015 - Congratulations Phil Anderson for accepting a 6 month field position at the ELA and Sarah Lamb for a 5-month invasive species job with the Alberta government.

April 19, 2015 - Paper based on Kate Joslin’s (formerly Turner) MSc thesis just published (Ecology 96:1074-1083).  Congratulations Kate and Brandon Schamp (co-supervisor).