American Emerald

Cordulia shurtleffii

General Status Rank: 
Secure
ELCODE: 
IIODO27010
Common Name: 
American Emerald
Scientific Name: 
Cordulia shurtleffii
Naming References: 
HMW1
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Taxonomy
Group: 
Odonate (Dragonfly)
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Insecta
Order: 
Odonata
Family: 
Corduliidae
References: 
HMW1
Habitat
Forested regions. Larvae & adults: sedge marshes, fens, shallow lakes, deep ponds with wooded margins, and sedge-lined, silt-bottomed oxbows.
References: 
BMW1
Distribution

Ecozones

Southern Arctic, Taiga Plains, Taiga Shield, Boreal Plains
References: 
RSC11

Distribution

37.31
Score: 
G
References: 
RSC11

Number of Occurrences

32
Score: 
CE
References: 
RSC11

Area of Occupancy

Score: 
-
References: 
BMW1
Population

Population Size

Common
References: 
BMW1
Trends

Trends

Early summer species - adults emerge in first 2 weeks of June.
References: 
BMW1
Threats

Threats

Score: 
C

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
Secure
Status Rank Description: 
This is apparently the second most common and widespread dragonfly in the Northwest Territories. Reindeer Depot is the northern limit of its range, since it does not occur north of Old Crow in the Yukon.
S Rank: 
S4S5
Decision Process Description: 
Ranked by P. Catling in 2005. Reviewed in 2010, no change. Reviewed in 2015, no change. Reviewed in 2020, no change.
Last Updated: 
November 25, 2023

References

Area of Occupancy

  • Cannings, Sydney G., Cannings, Robert A. (1997) Dragonflies (Odonata) of the Yukon. Biological Survey of Canada (Terrestrial Arthropods) Insects of the Yukon pp 169-200 - BMW1 Return

Ecozones

  • Catling, P. (2003) Dragonflies (Odonata) of the Northwest Territories - Status ranking and preliminary atlas. Unpublished report Suzanne Carriere's office - RSC11 Return

Habitat

  • Cannings, Sydney G., Cannings, Robert A. (1997) Dragonflies (Odonata) of the Yukon. Biological Survey of Canada (Terrestrial Arthropods) Insects of the Yukon pp 169-200 - BMW1 Return

Naming

  • Cannings, Robert A. (2001) Personal Communication. Curator of Entomology, Royal British Columbia Museum - HMW1 Return

Number of Occurrences

  • Catling, P. (2003) Dragonflies (Odonata) of the Northwest Territories - Status ranking and preliminary atlas. Unpublished report Suzanne Carriere's office - RSC11 Return

Population Size

Cannings, Sydney G., Cannings, Robert A. (1997) Dragonflies (Odonata) of the Yukon. Biological Survey of Canada (Terrestrial Arthropods) Insects of the Yukon pp 169-200 - BMW1 Return

Range Extent

  • Catling, P. (2003) Dragonflies (Odonata) of the Northwest Territories - Status ranking and preliminary atlas. Unpublished report Suzanne Carriere's office - RSC11 Return

Short Term Trends

  • Cannings, Sydney G., Cannings, Robert A. (1997) Dragonflies (Odonata) of the Yukon. Biological Survey of Canada (Terrestrial Arthropods) Insects of the Yukon pp 169-200 - BMW1 Return

Taxonomy

  • Cannings, Robert A. (2001) Personal Communication. Curator of Entomology, Royal British Columbia Museum - HMW1 Return