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Occurrence and prevalence of chytrid fungus (Batrachochytrium dendrobatidis) in amphibian species of Alberta

Description

Infectious diseases are one of a suite of factors implicated in the declines and extinctions of amphibians worldwide. One such disease, chytridiomycosis, is caused by the chytrid fungus... More ≫

Description

Infectious diseases are one of a suite of factors implicated in the declines and extinctions of amphibians worldwide. One such disease, chytridiomycosis, is caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd). Chytrid fungus was discovered in Alberta in 1999 from necropsies of several specimens of boreal toads and northern leopard frogs collected near Caroline. In late 2006, a pilot-study was conducted to determine whether Bd was present at northern leopard frog sites in southern Alberta. The detection of Bd at multiple sites, and in a provincially Threatened species, led to the expansion of Bd surveillance to other areas of the province, and to other amphibian species between 2007 and 2010. The results, reported in this study, provide a base-line for the occurrence and prevalence of Bd in Alberta. This information is required for the effective conservation and management of a broad suite of amphibian species, many of which are of high conservation concern in Alberta.

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Proposed protocols for inventories of rare plants of the grassland natural region

Description

Several reports have been prepared on the status of Alberta's native plant species. More recently, nonvascular plants have been given some attention and tracking lists have been developed. There... More ≫

Description

Several reports have been prepared on the status of Alberta's native plant species. More recently, nonvascular plants have been given some attention and tracking lists have been developed. There is a relatively good information base for rare vascular species but a very limited one for rare non-vascular plants. This report analyzes the vascular plant species and discusses potential approaches to research, monitoring and conservation of vascular and non-vascular plants in the Grassland Natural Region. There is a fundamental recognition that habitat or landscape level approaches are preferred but that some single species attention may still be required. One hundred and twelve vascular plant species were selected for detailed analysis and preparation of protocols based on their distribution within the Grassland Natural Region.

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Status of the whooping crane (Grus americana) in Alberta

Description

This wildlife status report looks at the whooping crane, North America's tallest bird. Whooping crane numbers are stable and slowly increasing due to the results of a number of conservation... More ≫

Description

This wildlife status report looks at the whooping crane, North America's tallest bird. Whooping crane numbers are stable and slowly increasing due to the results of a number of conservation efforts to restore the species after it reached a global population low of fewer than two dozen individuals. The only self-sustaining migratory flock of whooping cranes numbers about 180 individuals and nests in Wood Buffalo National Park along the border between Alberta and the Northwest Territories. The whooping crane is currently ranked as At Risk in Alberta. The Alberta Wildlife Act also lists the whooping crane as Endangered. The purpose of this status report is to compile and summarize both historic and up-to-date information and to update the current status of the whooping crane in Alberta. It is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their...

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Status of the Cape May warbler (Dendroica tigrina) in Alberta

Description

This wildlife status report looks at the Cape May warbler, a migrant songbird that breeds across the boreal forests of Canada and the northeastern United States and winters in the West Indies and... More ≫

Description

This wildlife status report looks at the Cape May warbler, a migrant songbird that breeds across the boreal forests of Canada and the northeastern United States and winters in the West Indies and the east coast of Central America. The Cape May warbler is uncommon in most areas of Alberta and concerns over the degradation and loss of suitable breeding habitat in the province have led to its inclusion on the list of species that may be at risk. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Status of the bay-breasted warbler (Dendroica castanea) in Alberta

Description

This wildlife status report looks at the bay-breasted warbler, a migrant songbird that breeds across the boreal forests of Canada and the northeastern United States and winters in Panama and... More ≫

Description

This wildlife status report looks at the bay-breasted warbler, a migrant songbird that breeds across the boreal forests of Canada and the northeastern United States and winters in Panama and northern South America. It is uncommon in most areas of Alberta and may be at risk in the province due to habitat loss. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Status of the western spiderwort (Tradescantia occidentalis) in Alberta

Description

This wildlife status report looks at the western spiderwort, a herbaceous perennial wildflower and the only species of Tradescantia native to Alberta. Widely distributed in the central United... More ≫

Description

This wildlife status report looks at the western spiderwort, a herbaceous perennial wildflower and the only species of Tradescantia native to Alberta. Widely distributed in the central United States, the western spiderwort is found at only four locations in Canada, one of which is along the old dune fields east of Pakowki Lake in Alberta. It is designated as Threatened in Canada. This report summarizes existing information on western spiderwort in Alberta as a step in assessing its status in the province. It is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Status of the short-eared owl (Asio flammeus) in Alberta

Description

This wildlife status report looks at the short-eared owl. The short-eared owl occurs on every continent except Antarctica and Australia, but population declines in the northeastern US and across... More ≫

Description

This wildlife status report looks at the short-eared owl. The short-eared owl occurs on every continent except Antarctica and Australia, but population declines in the northeastern US and across Canada have caused concern for the survival of this species. This report summarizes information on the short-eared owl as a step in updating its status in the province. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Status of the pygmy whitefish (Prosopium coulteri) in Alberta

Description

This wildlife status report looks at the pygmy whitefish, a small, slim whitefish in Alberta that has been collected in specific habitats from only two locations in the province: Upper Waterton... More ≫

Description

This wildlife status report looks at the pygmy whitefish, a small, slim whitefish in Alberta that has been collected in specific habitats from only two locations in the province: Upper Waterton Lake and a restricted portion of the upper Athabasca River. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Status of the trumpeter swan (Cygnus buccinator) in Alberta

Description

This wildlife status report looks at the trumpeter swan. Once common throughout North America, by the early 20th century a combination of habitat destruction and hunting nearly extirpated this... More ≫

Description

This wildlife status report looks at the trumpeter swan. Once common throughout North America, by the early 20th century a combination of habitat destruction and hunting nearly extirpated this species from Canada and the lower 48 states. Trumpeter swan populations increased in the second half of the 20th century and the species is no longer considered to be at risk. In Alberta, the trumpeter swan is currently listed as Threatened. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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Status of the black-throated green warbler (Dendroica virens) in Alberta

Description

This wildlife status report looks at the black-throated green warbler, a migrant songbird that breeds across the boreal forests of Canada and the northeastern United States and winters in Mexico... More ≫

Description

This wildlife status report looks at the black-throated green warbler, a migrant songbird that breeds across the boreal forests of Canada and the northeastern United States and winters in Mexico and Central America. Although common in some areas of suitable habitat in Alberta, it may be at risk due to loss and degredation of breeding habitat due to forest harvesting. This report is part of the Alberta Wildlife Status Report series, which provides comprehensive summaries of selected wildlife species intended to be useful to those managing populations of species and their habitats, and to help identify species that may be formally designated as endangered or threatened.

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