Species Information
Observation Method(s):
Individual(s) Observed (seen)
Photographed
Certainty of Identification:
100
Photo(s):
When
Date Time:
Tuesday, August 15, 2017 (All day)
Date/Time Precision:
±86 400 seconds
Survey
Survey Site:
Arrowhead Lake Divide
Survey Intensity:
very thorough
Population
EO Number:
44
EO ID:
27864
Population Area:
20 ft. radius
More potential habitat to survey:
yes
Suggestions for other areas to survey:
The ridge leading north from the Arrowhead Lake divide towards Blacknose Mountain may have pockets of potential habitat intermixed with sections of unsuitable habitat. The high divide that extends north from Blacknose Mountain to form the Boise County - Elmore County line may also have sections of potential habitat.
Additional population comments:
This occurrence with only 1 small patch of Lewisia sacajaweana supporting a total of 13 individuals in a 20 ft. radius area. Although mid-August, all Lewisia sacajaweana plants were small and vegetative. The presence of a few late-persisting snow patches and finding early-blooming species such as Ranunculus eschscholtzii still with flowers in the area suggested we might have been a little early for all Lewisia plants to be out and visible above ground. Our survey was thorough in the vicinity of the occurrence. Suspect additional habitat and plants occur in the vicinity, but a lack of time prevented us from searching further north towards Blacknose Mountain.
About
Is this part of a larger study or report?:
Mancuso, M., and J. Powell. 2018. A 2017 field survey for Sacajawea’s bitterroot (Lewisia sacajaweana) in the Sawtooth Mountain, Idaho. Report prepared by Mancuso Botanical Services and Idaho Natural Heritage Program, Boise, ID, for U.S. Fish and Wildlife Service, Idaho Fish and Wildlife Office, Boise, Idaho.
Where
Location Precision:
±10 meters
Mapped full extent:
unsure
Region:
County:
Game Management Unit:
Location:
Decimal Degrees: 43.9,-115.1
How
Who
Source Agency:
Idaho Department of Fish and Game
SA code (IDFG Reference Code):
Verification Status:
Verified
Count:
13
Count Type:
A Minimum