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Alberta's water research and innovation strategy annual report

Description

This annual report communicates the progress toward AWRIS enabling outcomes and actions; identifies the areas for improvement; and provides clarity on adjustments required to the outlined actions.

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Ecologically based site index curves and tables for major Alberta tree species

Description

This document presents ecologically based, reference-age invariant polymorphic height growth and site index models for major Alberta tree species. The models were developed using tree sectioning... More ≫

Description

This document presents ecologically based, reference-age invariant polymorphic height growth and site index models for major Alberta tree species. The models were developed using tree sectioning data from dominant and codominant trees. They can be used to predict the following: 1. Tree height from site index and breast height age, 2. site index from tree height and breast height age, 3. years needed for a tree to grow to a specified height, 4. height growth intercept. Since the models were fitted for the province as a whole and for groups of newly classified Natural Regions of Alberta, they can also be used to examine the regional differences of the height growth pattern. Relationships among breast height age, stump age and total age were also established so that compatible height growth and site index predictions can be made from any type of tree age. Tables and computer programs for predicting height growth and site index were prepared, along with a brief description of how to use...

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Summary report Alberta Phosphorus Watershed Project : 2018–2020 supplement

Description

Research has shown that in Alberta, the amount of phosphorus in streams increases with agricultural intensity in watersheds. The goal of the Alberta Phosphorus Watershed Project was to determine... More ≫

Description

Research has shown that in Alberta, the amount of phosphorus in streams increases with agricultural intensity in watersheds. The goal of the Alberta Phosphorus Watershed Project was to determine if wide-spread adoption of environmental beneficial management practices would improve water quality at the watershed scale, as well as to develop the Alberta Phosphorus Management Tool. This report supplements the previously published 2013–2017 Alberta Phosphorus Watershed Project progress report by summarizing the results and progress of the Alberta Phosphorus Watershed Project from 2018–2020.

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Gillett's Checkerspot in the Southern Headwaters At Risk Project (SHARP) area

Description

Gillett's Checkerspot is a colourful and distinctive butterfly that has a very small global range and a global conservation status rank of imperiled/vulnerable. The species is relatively well... More ≫

Description

Gillett's Checkerspot is a colourful and distinctive butterfly that has a very small global range and a global conservation status rank of imperiled/vulnerable. The species is relatively well known with respect to its biology and ecology. Available information is summarized in this report and differences between USA and Alberta populations are discussed. The ecology of the species renders it amenable to integration with economic activity. It can be accommodated without significant expense or impact on other natural resource uses. In some cases, forest canopy removal associated with development can be a positive factor for the species but in the past this has been an accidental byproduct of such activity. Brief strategic and operations guidelines are recommended.

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CWD program review 2012

Description

Chronic wasting disease (CWD) is an invasive alien prion agent that recently arrived in eastern Alberta. The prion causes fatal infections in cervids and significantly alters the population... More ≫

Description

Chronic wasting disease (CWD) is an invasive alien prion agent that recently arrived in eastern Alberta. The prion causes fatal infections in cervids and significantly alters the population structure and viability of local deer herds. There is no natural barrier to further spread, no treatment to eliminate infections, and no feasible live animal test to identify infected deer. CWD has significant environmental, social, and economic effects by altering major ecosystem structure and function, as well as decreasing recreational harvest and guiding/outfitting activity. Alberta was proactive in looking for occurrence of CWD and initially proactive in responding once it was found. Current programs focus on monitoring the ongoing geographic spread and numerical increase in eastern deer populations. Hunter harvest is the primary tool to find infected deer. Population reduction is the only known tool to manage CWD in wild deer.

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