Over its decade-plus of operations, the ABMI has generated a comprehensive dataset on Alberta’s species, their habitats, and the extent and type of human footprint across the province. With this information, the ABMI has developed analyses to predict species' relative abundances and examine species' responses to vegetation and soil types, as well as human footprint in Alberta. These methods have been applied to hundreds of species; this profile provides summary results for one.
Bluebur is an annual weed introduced from Eurasia first recorded in Alberta in 1899. Bluebur overwinters as a seed and is persistent in the seed bank. Its hooked seeds cling to animal fur and are thus transported long and short distances to new habitats.
Linear Footprint Graph: Species relative abundance predicted for habitat with no human footprint compared to habitat in which 10% of the area is converted to either soft or hard linear footprint.
If it is not possible to create complex habitat association models for a given species, we present a coarse index of habitat use that represents the proportion of detections in each native vegetation, soil, and human footprint type in comparison to the proportional availability of the habitat types.
Use-availability index graph: Index of species habitat use based on the proportion of species detections in each native vegetation and human footprint type in comparison to the habitat availability. The index (bars) range from -1 (avoidance) to +1 (preference), given availability of a particular vegetation or human footprint type.
Bluebur is found throughout the prairie region of Alberta and is most common in the Grassland Natural Region.
Bluebur is an invasive weed, but is not considered to be noxious in Alberta.
Alberta Queen's Printer. 2010. Weed Control Regulation. Government of Alberta, Edmonton, AB.
Budd, A.C. 1987. Budd's Flora of the Canadian Prairie Provinces. Second Edition. Agriculture Canada, Hull, QC.
Frick, B. 1984. The biology of Canadian weeds.: 62. Lappula squarrosa (Retz.) Dumort. Canadian Journal of Plant Science 64(2):375-386.
Moss, E.H. 1994. Flora of Alberta. Second Edition. University of Toronto Press, Toronto, ON.
Data collected by ABMI.
Alberta Biodiversity Monitoring Institute. 2019. Bluebur (Lappula squarrosa). ABMI Website: abmi.ca/home/data-analytics/biobrowser-home/species-profile?tsn=99002709.
Alberta Biodiversity Monitoring Institute. 2016. ABMI Species Website Manual, Version: 2016-12-02. Alberta Biodiversity Monitoring Institute, Alberta, Canada. Report available at: abmi.ca.
Alberta Biodiversity Monitoring Institute. 2014. Manual for Species Modeling and Intactness, Version 2014-09-25. Alberta Biodiversity Monitoring Institute, Alberta, Canada. Report available at: abmi.ca.
Alberta Biodiversity Monitoring Institute. 2014. Terrestrial field data collection protocols (abridged version) 2016-05-18. Alberta Biodiversity Monitoring Institute, Alberta, Canada. Report available at: abmi.ca.
Download ABMI Species and Habitat Data.
View ABMI Collaborations.
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