COSEWIC Assessment and Status Report on the Aweme Borer in Canada
- Assessment Summary
- Executive Summary
- COSEWIC History, Mandate, Membership and Definitions
- Lists of Figures, Tables and Appendices
- Species Information
- Population Sizes and Trends
- Limiting Factors and Threats
- Special Significance of the Species
- Existing Protection or Other Status Designations
- Technical Summary
- Acknowledgements, Authorities Contacted, and Information Sources
- Biographical Summary of Report Writer and Collections Examined
- Appendix 1: Required Contacts for Information on Species
The range of the Aweme Borer is defined by four collection sites extending along a narrow band from southwestern Manitoba (Aweme area) east to the Great Lakes shoreline in northern Michigan, southern Ontario and northern New York state (Figure 2). All records are historic and the species has not been collected since 1936 (Table 1). The global maximum extent of occurrence (EO) is approximately 160 000 sq. km. The maximum extent of occurrence (EO) in Canada encompasses about 30 000 km2 in a narrow strip approximately 1 500 km long and 20 km wide.
|CAN MB Aweme||1905-08-24||N. Criddle||Lyman Entomological Museum|
|CAN MB Aweme||1905-08-25||N. Criddle||British Museum of Natural History|
|CAN MB Aweme||1905-08-26||N. Criddle||Canadian National Collection of Insects|
|CAN ON Grand Bend||1936-08-15||?||Canadian National Collection of Insects|
|CAN ON Manitoulin I.||2005-08-19||J. K. Morton||Canadian National Collection (?)|
|USA MI Beaver Island||1925-08-13||S. Moore||American Museum of Natural History.|
|USA NY Rochester||1932-08-07||A.G. Richards||U.S. National Museum|
The Canadian range is defined by three collection sites; Aweme in southwestern Manitoba and Grand Bend and Manitoulin Island in southeastern Ontario (Fig. 2.). These three Canadian collection sites account for three-fifths of the global sites, and five of the seven known specimens.
The first three specimens were collected at Aweme, Manitoba in August of 1908, while the most recent collection came from Manitoulin Island, Ontario in 2005. The 2005 specimen is the first report of this species in almost 70 years (Table 1).
The Aweme site is located in the Prairie Ecological Area and the Grand Bend and Manitoulin sites in the Great Lakes Plain (COSEWIC 2003). The maximum extent of occurrence (EO) in Canada encompasses about 35 000 km2 in a narrow strip approximately 1 500 km long and 20 km wide. The maximum area of occupancy (AO) includes a possible 625 km2: approximately 600 km2 in Spruce Woods Provincial Park and Canadian Forces Base (CFB) Shilo combined, about 25 km2 in The Pinery Provincial Park – Grand Bend area, and less than 1 km2 on Manitoulin Island.
- Date Modified: