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Black canyon pyrg
Pyrgulopsis plicata
NatureServe conservation status
Global (G-rank): G1
State (S-rank): S1
External links
Species range
This species is known only from a complex of springs in Black Canyon, East Fork Sevier River, Garfield County, Utah, to which it is presumably strictly endemic.
Habitat
Hershler (1998) described the single locality of occurrence as "a large series of small rheocrenes emerging froma steep hillside". Hershler (n.d.) reported the elevation of the locality as 6,700 ft. He listed (Hershler n.d.) the temperature of these springs as 16 C and the conductivity as 236 micromhos/cm.
Threats or limiting factors
Hershler (n.d.) observed that disturbance of the only site where this species occurs is slight. He also (Hershler n.d., in press) noted that the spring complex inhabited by this species feeds a reservoir. Since the species is strictly endemic to one spring complex, even slight disturbance must be considered a serious threat to the species.
