Application of the Residence Concept to Slender Mouse-ear-cress (Halimolobos virgata)

Does the concept of residence under SARA apply to this species? No

(1) Does the ecology of the species include the use of a dwelling place--which is a specific location (or locations) or discrete spatial area that contains features similar to a den or nest, or performs functions similar to a den or nest?

No - the specific location occupied by an individual Slender Mouse-ear-cress plant is plainly a part of the general habitat of the species; there is no inherent feature of this area similar to a den or nest.

(2) Are these locations occupied or habitually occupied during all or part of the species’ life cycle?

Not applicable

(3) Are these locations essential to the successful performance of a specific, crucial function of the species’ life-cycle?

Not applicable

Individual Slender Mouse-ear-cress plants do not appear to use a dwelling place similar to a nest or den, and therefore do not qualify to have a residence. There would be no additional legal protection not already afforded by protection of the individual and its critical habitat.

Government of Canada. 2004. Species at Risk Act Policy: Policy on Residence. Draft (June 18, 2004). Unpubished. Paper. 17 pp.

Smith, B. 1992. Status Report on the Slender Mouse-ear-cress, Halimolobos virgata, in Canada. Committee on the Status of Endangered Wildlife in Canada. 39 pp.

Smith, B. 1999. Update COSEWIC Status Report on the Slender Mouse-ear-cress, Halimolobos virgata, in Canada. Committee on the Status of Endangered Wildlife in Canada. 21 pp.

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