References 533 



tion in relation to resource abundance in Lapland longspurs breed- 

 ing in arctic Alaska. Auk, 96: 131-142. 



Sellmann, P.V., K.L. Carey, C. Keeler and A.D. Hartwell (1972) Terrain 

 and coastal conditions on the Arctic Alaska Coastal Plain: Arctic 

 environmental data package supplement 1. U.S. Army Cold Re- 

 gions Research and Engineering Laboratory Special Report 165, 72 

 pp. 



Sellmann, P.V. and J. Brown (1973) Stratigraphy and diagenesis of 

 perennially frozen sediment in the Barrow, Alaska, region. In Per- 

 mafrost: North American Contribution to the Second International 

 Conference. Washington, D.C.: National Academy of Sciences, pp. 

 171-181. 



Sellmann, P.V., J. Brown, R.L Lewellen, H.L. McKim and C.J. Merry 

 (1975) The classification and geomorphic implications of thaw lakes 

 on the Arctic Coastal Plain, Alaska. U.S. Army Cold Regions Re- 

 search and Engineering Laboratory Research Report 344, 20 pp. 



Sestak, Z., J. Catsky and P.O. Jarvis (Eds.) (1971) Plant Photosynthet- 

 ic Production. Manual of Methods. The Hague: Dr. W. Junk, 818 

 pp. 



Sextone, A., K. Everett, T. Jenkins and R.M. Atlas (1978) Fate of 

 crude and refined oils in North Slope soils. Arctic, 31: 339-347. 



Shaver, G.R. (1976) Ecology of roots and rhizomes in graminoid plants 

 of the Alaskan coastal tundra. Ph.D. dissertation, Duke University, 

 213 pp. 



Shaver, G.R. and W.D. BilHngs (1975) Root production and root turn- 

 over in a wet tundra ecosystem, Barrow, Alaska. Ecology, 56(2): 

 401-409. 



Shaver, G.R. and W.D. Billings (1976) Carbohydrate accumulations in 

 tundra graminoid plants as a function of season and tissue age. 

 Flora, 165: 247-267. 



Shaver, G.R. and W.D. BiUings (1977) Effects of day length and temp- 

 erature on root elongation in tundra graminoids. Oecologia (Berl.), 

 28: 57-65. 



Shtina, E.A. (1972) Some peculiarities of the distribution of nitrogen- 

 fixing blue-green algae in soils. In First International Symposium 

 on Taxonomy and Ecology of Blue-Green Algae, Madras, 1970 

 (T.V. Desikachary, Ed.). Madras: Bangalore Press, pp. 294-295. 



Skoog, R.D. (1968) Ecology of the caribou {Rangifer tarandus granti) in 

 Alaska. Ph.D. dissertation. University of California (Berkeley), 699 

 pp. 



Slaughter, C.W., M. Mellor, P.V. Sellmann, J. Brown and L. Brown 

 (1975) Accumulating snow to augment the fresh water supply at 

 Barrow, Alaska. U.S. Army Cold Regions Research and Engineer- 

 ing Laboratory Special Report 217, 21 pp. 



