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CONSERVATION STATUS (NatureServe)
Global rank: G5
US Fish and Wildlife Service: N5
Committee on the Status of Endangered
Wildlife in Canada: N4
State Designations: CO (SNA), CT (SNR),
IL (S5), IN (S5), IA (S5), KS (S4), KY
(SU), ME (SNA), MA (SNA), MI (S4), MN
(SNR), MO (SNR), MT (SNR), NE (SNR),
NH (SNA), NY (SNR), ND (S3), OH (S4),
PA (SNA), RI (SNA), SD(SNR), TN (S5),
VT (SNA), WI (S4?), WY (SNR)
Province Designations: Manitoba (SNR),
Ontario (S4), Quebec (S4)
CONSERVATION ISSUES
There are few concerns in Nebraska as it is a
widespread, native species. Impacts on
them can include loss of cover on stream
margins due to overgrazing and pesticide
use. On the other hand, it has proven to be
an aggressive invasive species where
introduced outside of its native range.
Collection locations for the Calico crayfish, Orconectes immunis, in Nebraska,
1995-2010.
