Response Statement - Roell's Brotherella Moss
This moss is endemic to western North America, where all known extant populations occur in the densely populated south-western mainland area of British Columbia. Extensive collecting within and beyond this region has shown this species to occur only on hardwoods and rotten logs in remnant second-growth stands within urban areas. Twenty-nine individuals are known from nine of the 26 extant locations that have recently been verified. The species is subject to pressures from recreational use, road construction and urban, agricultural, resource and industrial development, all of which threaten the quantity of its preferred habitat and host trees and logs, as well as the quality of these habitats in terms of moisture levels and air quality.
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Canadian Wildlife Service
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