COSEWIC Assessment Summary and Status Report: Rusty-patched Bumble Bee Bombus affinis
Assessment Summary – April 2010
Rusty-patched Bumble Bee
Reason for designation
This species, which has a distinctive color pattern, was once commonly found throughout southern Ontario. Active searches throughout its Canadian range have detected only one small population over the past seven years which suggests a decline of at least 99% over the past 30 years. It is threatened by disease, pesticides, and habitat fragmentation, each of which could cause extirpation in the near future.
Designated Endangered in April 2010.
- HTML version of "COSEWIC Assessment and Status Report on the Rusty-patched Bumble Bee Bombus affinis in Canada"
- "COSEWIC Assessment and Status Report on the Rusty-patched Bumble Bee Bombus affinis in Canada" (2010-09-03) (PDF format, 773.87 KB)
c/o Canadian Wildlife Service
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