1090 record(s) found with the tag "biology" (multi-year projects are grouped):
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Nahanni Aster Status Report
Principal Investigator: Harris, Allan G
Licenced Year(s): 2012
Summary: The objective of this research project is to conduct fieldwork to determine the population size, distribution, and habitat of Nahanni Aster. Fieldwork will involve helicopter access to hotspring habitats. Presence/absence of Nahanni Aster will be recorded, stems counts will be conducted, and habitat and potential threats will be described. There are possible opportunities to promote the Nahanni ...


Carbon Cycling Linkages of Permafrost Systems [CYCLOPS]
Principal Investigator: Williams, Mathew
Licenced Year(s): 2014 2013 2012
Summary: The ultimate aim of the proposed project is to develop and evaluate a detailed process-based model of vegetation-soil-permafrost interactions using data collected through directed field campaigns in the discontinuous and sporadic permafrost zones of western Canada. The research team will (i) elucidate the role of plant biodiversity in controlling permafrost status in contrasting ecosystems with di...


Non-toxic arsenic in mushrooms and plants from Yellowknife
Principal Investigator: Reimer, Kenneth J.
Licenced Year(s): 2012
Summary: The objectives of this research is to: determine total arsenic and arsenic species in edible and non-edible mushrooms from contaminated and uncontaminated locations (mine properties and roadsides/parks); determine total arsenic and arsenic species in plants including Labrador tea, horsetails, buffaloberry, fireweed and berries (if available) from contaminated and uncontaminated locations (mine pro...


Ecological Structure of Northern Arthropods: Assessing community structure and biodiversity across an environmental gradient
Principal Investigator: Buddle, Chris
Licenced Year(s): 2012 2011
Summary: The objectives of this research project are: (1) To test how and to what degree the structure of arthropod communities changes between the northern boreal and sub-arctic zones. This will provide us with a contemporary geographic profile of species and group distributions as well as estimates of diversity. (2) To use molecular genetic techniques to aid in species identification and to help expl...


Aquatic Environmental Effects Monitoring - Flat River at Cantung Mine
Principal Investigator: Hoos, Rick
Licenced Year(s): 2012 2009 2002
Summary: The objectives of this research are: (1) to determine length, weight, and general condition of 100 fish and tissue analysis of not more than 10 fish (Slimy Sculpin- Cottus cognatus) per site at five site locations in the Flat River: two locations upstream of the CanTung mine site, one adjacent to the mine site and at two locations downstream of the mine site; and, (2) to determine sediment and w...


Lake trout diversity in Great Bear Lake: do deep-water forms exist?
Principal Investigator: Muir, Andrew M
Licenced Year(s): 2012 2010
Summary: The objective of this project is to sample known and newly discovered deepwater (>50 m) habitats southwest of the Narakay Islands and within the McTavish Arm to determine if a deepwater humper or siscowet lake trout form occurs. Data on the occurrence and characteristics of deepwater lake trout forms from Great Bear Lake will fill in gaps in this North American lake trout dataset. Currently it is ...


ArcticNet: an Integrated Regional Impact Study of the Coastal Western Canadian Arctic.
Principal Investigator: Fortier, Martin
Licenced Year(s): 2013 2012 2011 2010 2009 2007 2006 2005 2004
Summary: The central aim of the ArcticNet marine-based research program is to study on a long-term basis how climate induced changes are impacting the marine ecosystem, contaminant transport, biogeochemical fluxes, and exchange processes across the ocean-sea ice-atmosphere interface in the Canadian Arctic Ocean. Ultimately, the knowledge generated from this multi-year program will be integrated into region...


Effect of spring and summer temperatures on amphipod reproduction (Gammarus lacustris)
Principal Investigator: Messmer, David J
Licenced Year(s): 2012
Summary: To determine how spring and summer temperatures affect the abundance of the amphipod Gammarus lacustris throughout the summer. Over the 2 years of the experiment, the research team plans to use amphipods from 4 different sources over several latitudes (Montana-USA, St. Denis-SK, Yellowknife-NT, Inuvik, NT). Using this variety of geographic sources will allow us to assess if different populations...


Evolution of Arctic Lampreys
Principal Investigator: Renaud, Claude B.
Licenced Year(s): 2012
Summary: The purpose of this study is to know more about the lampreys of NWT. It is part of a larger scale study of lampreys of the genus Lethenteron across the northern hemisphere (Eurasia and North America). In the Northwest Territories (NWT) part of the study our objectives are: 1- To collect a total of about 30 larvae at least 60 mm in total length for each of the two species from localities where a...


Improving Habitat Connectivity to Enhance Productive Capacity of Arctic Freshwater Ecosystems
Principal Investigator: Tonn, William
Licenced Year(s): 2014 2013 2012 2011 2010 2009
Summary: The objectives of this project are: 1) to study the freshwater ecology, hydrology, and hydraulics of small lakes and streams in the Lac de Gras basin before habitat modification; 2) to monitor the changes in ecosystem productive capacity resulting from habitat modifications designed to increase habitat connectivity and fish passage; and 3) to assess the effectiveness of such habitat modifications...


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