MTNHP Bog Lemming Bibliography Page 19 of 19 



Youngman, P. M. 1968. Notes on mammals of southeastern Yukon Territory and adjacent 

 Mackenzie District. Natl. Mus. Can. Bull. 223:70-86. 



• For SYNAPTOMYS BOREALIS: collected in the N. W. T.: 1) a male and nonparous female in a 

 hot spring meadow with MICROTUS PENNSYLVANICUS and M. LONGICAUDUS at 4000 ft. 

 Flat River; 2) one at a marsh at Glacier Lake, 2500 ft; in the Yukon: 3) a male in riparian 

 brushlands 5 mi E of Little Hyland River, 6000 ft and a male at 4000 ft; 4) 1 1 males and 4 females 

 in white spruce at North Toobally Lake, 2200 ft. 



Youngman, P. M. 1975. Mammals of the Yukon Territory. Natl. Mus. Canada, Publ . Zool. 10. 192 

 pp. 



• Very good general reference with sections on environmental influences, vegetation and refugium 

 effects on mammal distribution. Species accounts have detailed taxonomic synonymies, dot maps, 

 external and skull measurements, and remarks on fossils, habitat, and ecology. For 

 SYNAPTOMYS BOREALIS: distributed throughout the wooded portion of the Yukon. Has 

 external and skull measurements of males (n=18) and females (n=5-6); pelage description. 

 Suggests that S. BOREALIS speciated in a south-western refugium and is a post- glacial 

 immigrant to the north. Collected in the Yukon "between 800 and 6000 ft mostly in bogs and 

 marshes." Stated 10 pregnant females averaged 4.4 (3-6) embryos. 



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