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Now showing items 41-50 of 129
Biodiversity of ground beetles in young and old poplar stands
(2019)
Ground beetles (Coleoptera: Carabidae) are a useful bioindicator group in forests in almost every part of the world. This thesis studied the biodiversity of carabid beetles in old and young age trembling aspen (Populus ...
Investigation of an epidemic of balsam poplar leaf blotch miner, Phyllonoricter Nipigon, (Leptidoptera: Gracilleriidae) in Thunder Bay, Ontario
(2019)
In the summer of 2018, an outbreak of Phylonorycter nipigon, commonly known as the balsam poplar leaf blotch miner, was identified on the Lakehead University campus in Thunder Bay, Ontario. All balsam poplar and trembling ...
Wetland restoration in China
(2019)
China has the fourth largest area of wetland in the world. China has many types of wetland, but because of the environmental damage, many wetland areas were lost or converted to other land use such as farmland. As the ...
Analysis of using unmanned aerial vehicles in forestry
(2019)
Unmanned aerial vehicles are a growing market within the forestry industry. They provide opportunities for enhancement of data collection, monitoring of wildlife, forest fire detection and monitoring, compliance monitoring ...
Well-spaced and free-growing: effects and interactions of ecosite and renewal treatments on regenerating stands in northwestern Ontario
(2019)
Effective renewal of harvested stands in Ontario is mandated in the Crown Forest Sustainability Act (CFSA 1994). Properly prescribed silviculture leads to forested stands that are regenerated successfully, have predictable ...
Residual damage in mixed hardwood stands after mechanized logging
(2019)
Research and data collection on the issues surrounding mechanized harvesting in mixed
hardwood stands was gathered within the Great Lakes-St. Lawrence forest region. The
silviculture prescription for the stands studied ...
Effects of species mixtures on fine root production in a young boreal forest
(2019)
1. Fine roots (< 2 mm) play a key role in terrestrial ecosystem processes. Species diversity
loss has been recognized as one of the primary global change drivers that can have
profound negative effects on ecosystem ...
Are individuals able to accurately report their own behaviour? An investigation of observer-respondent disparity of reported behaviours associated with social anxiety?
(2019)
Social anxiety is characterized by the powerful fear of negative evaluation from others and a high level of self-focused attention (SFA). In addition, socially anxious individuals often engage in a variety of anxiety-related ...
Experimental determination of the residual compressive strength of concrete columns subjected to different fire durations and load ratios
(2019)
The superior thermal property of concrete associated to its great capability of thermally insulating the embedded reinforcing steel rebar is the main reason for the good behavior of reinforced concrete structural elements ...
Constructing two-dimensional molecular networks on metal and semiconducting surfaces : a scanning tunneling microscopy study
(2019)
The synthesis of two-dimensional organic nanostructures on metal and semiconducting surfaces is studied under ultra-high vacuum (UHV) conditions. Three halogenated organic molecules are investigated using scanning tunneling ...