National Forests. [Unpublished report to the Priest Lake Ranger District]. 18 pp. The 

 Nature Conservancy, Boulder, Colorado. 



Abstract: Summary of field data collected in survey of small mammals and amphibians in 

 old-growth coniferous forests on the Priest Lake Ranger District, Idaho Panhandle National 

 Forests. Abundance and species richness were estimated on pitfall trapping grids with drift fences 

 at 15 sites representing five replicates of three treatments. 5 shrew species, 1 pocket gopher sp., 6 

 sp. of mice and vole (including Northern Bog Lemmings) , and 3 amphibian sp. were found over a 

 three year period. 



Groves, C. and E. Yensen. 1989. Rediscovery of the northern bog lemming (SYNAPTOMYS 

 BOREALIS) in Idaho. Northw. Nat. 70:14-15. 



A single adult male was captured on 14 July 1988 at Cow Creek, Boundary Co., Idaho at 1304 m elevation. The 

 site was at the edge of a sphagnum bog next to an Englemann spruce tree. Dominant vegetation in the bog 

 included: DESCHAMPSIA CAESPITOSA, CAREX ROSTRATA, ERIOPHORUM CHAMISSONIS, 

 BETULA GLANDULOSA, KALMIA MICROPHYLLA, and SPHAGNUM spp. Other small mammals 

 captured at the site included: ZAPUS PRINCEPS, CLETHRIONOMYS GAPPERI, SOREX spp, TAMIAS 

 RUFICAUDUS, and MICROTUS PENNSYLVANICUS. The lemming was taken during 2 nights of trapping 

 with 32 museum special snap traps and 16 pitfalls. The other Idaho SYNAPTOMYS site on Gold Peak Road 

 (Johnson and Cheney 1953) was re-sampled in 1987 but no SYNAPTOMYS taken; it was logged sometime 

 between the original capture and the re-trapping attempt in 1987. States that records of SYNAPTOMYS 

 BOREALIS captured by Larrison (Larrison 1967; Larrison and Johnson 1981) were actually misidentified 

 PHENACOMYS INTERMEDIUS. 



Guthrie, R. D. 1968. Paleoecology of a Late Pleistocene small mammal community from 

 interior Alaska. Arctic 21 :223-244. 



SYNAPTOMYS BOREALIS is currently present at the site but was not found in Late Pleistocene deposits. 

 Guthrie is unsure if it is a post-glacial immigrant or was present but not found. 



Hall, E. R. 1981. Mammals of North America. 2nd edition. 2 vol. John Wiley and Sons. 



Identification and distribution information for mammals of North America. SYNAPTOMYS BOREALIS: 

 description and measurements; distribution; 9 subspp. 



Hall, E. R. and E. L. Cockrum. 1953. A synopsis of the North American Microtine rodents. 

 Univ. Kansas Publ., Mus. Nat. Hist. 5:373-498. 



Good for synonymies, distribution, subspecies, key, and citations of original descriptions. For SYNAPTOMYS 

 BOREALIS: places in subgenus MICTOMYS and lists 9 subspecies and their distributions. Gives external 

 measurements as total:118-I35; taiI:19-27; hind foot:16-22; ear:12-13; weight 32-34 g (n=2). Pelage 

 description. 



Hall, F. S. 1932. A historical resume of exploration and survey - mammal types and their 

 collectors in the state of Washington. Murrelet 13:63-91. 



Gives original citation and information from it on the description of SYNAPTOMYS TRUEI (=S. BOREALIS) 

 from the Skagit Valley of Washington in 1859. 



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