COMPILATION OF U.S • TUNDRA BIOME JOURNAL .Alm SYMPOSIUM PUBLICATIONS* {April 1975)

1. Journal Papers

la. Published

+Alexander, V., M. Billington and D.M. Schell (1974) The influence of abiotic factors on nitrogen fixation rates in the Barrow, Alaska, arctic tundra. Report Kevo Subarctic Research Station 11, vel. 11, p. 3-11. (+)Alexander, V. and D.M. Schell (1973) Seasonal and spatial variation of nitrogen fixation in the Barrow, Alaska, tundra. Arctic and Alnine Research, vel. 5, no. 2, p. 77-88.

(+)Allessio, M.L. and L.L. Tieszen (1974) Effect of leaf age on trans­ location rate and distribution of Cl4 photoassimilate in Dupontia fischeri at Barrow, Alaska. Arctic and Alnine Research, vel. 7, no. 1, p. 3-12.

(+)Barsdate, R.J., R.T. Prentki and T. Fenchel (1974) The phosphorus cycle of model ecosystems. Significance for decomposer food chains and effect of bacterial grazers. Oikos, vel. 25, p. 239-251.

0 • (+)Batzli, G.O., N.C. Stenseth and B.M. Fitzgerald (1974) Growth and survi­ val of suckling brown lemmings (Lemmus trimucronatus). Journal of Mammalogy, vel. 55, p. 828-831.

(+}Billings,. W.D. (1973) Arctic and alpine vegetations: Similarities, dii'­ ferences and susceptibility to disturbance. Bioscience, vel. 23, p. 697-704.

(+)Braun, C.E., R.K. Schmidt, Jr. and G.E. Rogers (1973) Census of Colorado white-tailed ptarmigan with tape-recorded calls. Journal of Wildlife Management, vel. 37, no. 1, p. 90-93.

(+)Buechler, D.G. and R.D. Dillon (1974) Phosphorus regeneration studies in freshwater ciliates. Journal of Protozoology, vol. 21, no. 2,· P• 339-343. (+)Bunnell, Fo (1973) Decomposition: Models and the real world. Bull. Ecol. Res. Comm. (Stockholm), vel. 17, p. 407-415.

(+)Bunnell, Fo (1973) Theological ecology or models and the real world. For. Chron., vel. 49, p. 167-171.

{+)Bunnell, F., L. Karenlampi and D.E. Russell (1973) A simulation model of lichen-Rangifer interactions in northern Finland. Report Kevo Subarctic Research Station 10, I-XX, p. 1-8.

* Includes cooperative research directly related to Biome research. +Copy on file in Hanover, N.H. (Brown) as of April 1975; () indicates abstract submitted to Oak Ridge Interbiome abstracts. ~+)Caldwell, M.M. (1972) Biologically effective solar ultraviolet irradiation in the arctic. Arctic and Alpine Research, val. 4, p. 39-43.

(+)Caldwell, M.M., L.L. Tieszen and M. Fareed (1974) The canopy structure of tundra plant communities at Barrow, Alaska, and Niwot Ridge, Colorado. Arctic and Alpine Research, val. 6, no. 2, p. 151-159.

(+)Cameron, J.N., J. Kostoris and P.A. Penhale (1973) Preliminary energy budget of the nine-spined stickleback (Pungitius pungitius) in an arctic lake. Journal of the Fisheries Research Board, Canada, val. 30, no. 8, p. 1179-1189.

{+)Cameron, R.E. (1974) Application of low latitude microbial·ecology to high latitude deserts. In Polar Deserts and Modern Man (T.L. Smiley and J. Zumberge, Eds.). Tuscan, University of Arizona, p. 71-90. (+)Chapin, F.S. III (1974) Phosp~te absorption capacity and acclimation po­ tential in plants along a latitudinal gradient. Science, vol. 183, p. 521-523.

+ Chapin, F.S. III (1974) Morphological and physiological mechanisms of tempera­ ture compensation in phosphate absorption along a latitudinal gradient. Ecology, val. ~5, p. 1180-1198.

(+)Collins, N.J. and W.C. Oechel (1973) The pattern of grol~h and translo­ cation of photosynthate in a tundra moss, Polytricum alpin~ EEDW. Canadian Journal of Botany, vol.· 52, p. 355-363.

(+)Coulon, C. and V. Alexander (1972) A sliding-chamber phytoplankton set­ tling technique for making permanent quantitative slides with appli­ cations in fluorescent microscopy ann ~utoradiography. Limnol. Oceanogr., val. 17, p. 149-152.

(+)Coyne, P.I. and J.J. Kelley (1971) Release of carbon dioxide from frozen soil to the arctic atmosphere. Nature, val. 234, no. 5329, p. 407- 408.

(+)Coyne, P.I. and J.J. Kelley (1974) Carbon dioxide partial pressures in arctic surface waters. Limnology and Oceanography, val. 19, no. 6, p. 928-938.

(+)Coyne, P.I. and J.J. Kelley (1974) Variations in carbon dioxide across an arctic snowpack in spring. Journal of Geophysi~al Research, val. 79, no. 6, p. 799-802.

(+)Custer, T.W. (1973) Snowy owl predation on Lapland longspur nestlings re­ corded on film. ~' val. 90, p. 433-435.

(+)Edwards, J.S. (1972) Arthropod fallout on Alaskan snow. Ar~tic and Alpine Research, val. 4, no. 2, p. 167-176.

Flint, P.S. (1973) Problems related to use of the ammonia electrode. In Advances and Innovations in Procedures for Soil, Plant and Water Analyses. U.C. Division of Agricultural Sciences, Berkeley, p. 51-53.

{+)Hobbie, J.E. (1973) Using kinetic analysis of uptake of carbon-14 to meas­ ure rates of movement of individual organic compounds into aquatic bacteria. Bull. Ecol. Res. Comm. (Stockholm), val. 17, p. 207-214. • • • :·: ·30 (+)Hobbie, J.E. and L.R. Pomeroy (1972) Experimental concentrations of aquatic microorganisms. Verh. Int. Verein. Limnol., vol. 18, p. 696-700.

(+)Johnson, D.A. and M.M. Caldwell (1974) Field measurements of photosynthesis · and leaf growth rates on three alpine plant species. Arctic and Alpine Research, vol. 6, no. 3, p. 245-251. (+)LeDrew, E.F. and J.C. Emerick (1974) A mechanical balance-type lysimeter for use in remote environments. Agricultural Meteorology, vol. 13, p. 253-258. (+)Lord, N.W., J.P. Pandolfo and M.A. Atwater (1972) Simulations of meteor­ ological variations over arctic coastal tundra under various physical interface conditions. Arctic and Alpine Research, val. 4, no. 3, p. 189-209. (+)Lord, N.W., M.A. Atwater and J.P. Pandolfo (1974) Influence of the inter­ actions between tundra thaw lakes and surrounding land. Arctic and Alpine Research, val. 6, no. 2, p. 143-150. (+)MacLean, S.F., Jr. (1973) The life cycle and growth energetics of Pedicia hannai atenatta Alex. (Diptera: Tipulidae), an arctic crane fly. Oikos, vol. 24, p. 436-443.

(+)MacLean, S.F., Jr., B.M. Fitzgerald and F.A. Pitelka (1974) Pop~ation cycles in arctic lemmings, winter' reproduction and predation by weasels. Arctic and Alpine Research, val. 6, no. 1, p. 1-12.

(+)May, T.A. and C.E. Braun (1972) Seasonal foods of adult white-tailed ptarmigan in Colorado. Journal of Wi1 ::life Management, val. 36, no. 4, p. 1180-1186.

(+)May, T.A. and C.E. Braun (1973) Gizzard stones from adult white-tailed r ptarmigan (Lagopus leucurus) in Colorado. Arctic and Alpine Research, vol. 5, no. 1, p. 49-57-

( + )Mill~r, O.K. , Jr., G.A. Laursen and B.M. Murray (1973) Arctic and alpine agarics from Alaska and Canada. Canadian Journal of Botany, vol. 51~ no. 1, p. 43-49. .!,;._ . .'. '_. (+)Miller, P.C. and L.L. Tieszen (1972) A preliminary model of' processes affecting primary production in the arctic tundra. Arctic and Alpine Research, val. 4, p. 1-18.

(+)Nakano, Y. and J. Brown (1972) Mathematical modeling and validation of' the thermal regimes in tundra soils, Barrow, Alaska. Arctic and Alpine Research, vol. 4, p. 19-38.

(+}Norton, D.W. (1972) Incubation schedules of f'our species of' calidridine sandpipers at Barrow, Alaska. Condor, val. 74, p. 164-176. (+)Outcalt, S.I. (1974) Gradient mapping of' patterned ground characteristics from a photomosaic of' the IBP Tundra Biome site near Barrow, Alaska. Journaf of Mathematical Geoloc;y, val. 6, no. 3, p. 235-244 .

. ~(+)Packer, J.G. and G.D. McPherson (1974) Chromosome numbers in some vascular · plants from northern Alaska. Canadian Journal of Botany, val. 52, p. 1095-1099. I \ ·'.·if" Pitelka, F.A. (1974) An avifauna! review for the Barrow region and North Slope of arctic Alaska. Arctic and Alpine Research, val. 6, no. 2, p. 161-184.

(+)Pitelka, F.A., R.T. Holmes and S.F. MacLean, Jr. (1974) Ecology and evolu­ tion of social organization in arctic sandpipers. American Zoologist, val~ 14, p. 185-204.

(+)Rastorfer, J.R. (1974) Element contents of three Alaskan-Arctic mosses. Ohio Journal of Science, val. 74, no. 1, p. 55-59·

(+)Rickard, W.E., Jr. and J. Brown (1974) Effects of vehicles on Arctic tundra. Environmental Conservation, val. l, p. 55-62.

(+)Schell, D.M. and V. Alexander (1970) Improved incubation and gas sampling techniques for nitrogen fixation studies. Limnology and Oceanography, val. 15, p. 961-962.

(+)Schell, D.M. and V. Alexander (1973) Nitrogen fixation in arctic coastal tundra in relation to vegetation and micro-relief. Arctic, val. 26, p. 130-137.

(+)Steere, W.C. and B.M. Murray (1974) The geographical distribution of Bryum wrightii in arctic and boreal North America. The Brrologist, val. 77, no. 2, p. 172-178.

(+)Stress, R.G. and S.M. Penrick (1974) Nutrient uptake kinetics in phyto­ plankton, a basis for niche separation.. Journal of P:bycology, val. 10, no. 2, p. 164-169.

(+)Tieszen, L.L. (1972) The seasonal course ~~ aboveground production and chlorophyll distribution in a wet arctic tundra at l3a.rrow, Alaska. Arctic and Alpine Research, val. 4, no. 4, p. 307-324. ) ..

(+)Tieszen, L.L. (1973) Photosynthesis and respiration in arctic tundra grasses: Field light intensity and temperature response. Arctic and ~pine Research, val. 5, p. 239-251.

(+)Tieszen, L.L. (1974) Photosynthetic competence of the subnivean vegeta­ tion of an arctic tundra. Arctic and Alpine Research, val. 6, no. 3, p. 245-256.

(+)Tieszen, L.L. and D.C. Sigurdson (1973) Effect of temperature on carboxylase activity and stability in some Calvin cycle grasses from the arctic. Arctic and Alpine Research, val. 5, no. l,.p. 59-66.

(+)Weller, G., C. Benson and B~"'Holmgren (1974) The microclimates of the arctic tundra. Journal of Applied Meteorology, val. 13, p. 854-862.

(+)Weller, G., S. Cubley, S. Parker, D. Trabant and C. Benson (1972) The tundra microclimate during snow-melt at Barrow, Alaska. Arctic, val. 25, no. 4, p. 291-300.

(+)West, G. and B.B. DeWolfe (1974) Populations and energetics of taiga birds near Fairbanks, Alaska. Auk, val. 91, no. 4, p. 757-775 • ...... ·.'· . . : (+)White, C.M. and T.J. Cade (1971) Cliff-nesting raptors and ravens along the Colville River in arctic Alaska. The Living Bird, Cornell Lab­ oratory of Ornithology, p. 107-150.

lb. In Press

Allessio, M.L. and L.L. Tieszen. Translocation pattern in Dupontia fischeri R. Br. in situ studies, Barrow, Alaska. American Journal of Botany.

+ Barsdate, R.J. and V. Alexander (1975) The nitrogen balance of Arctic tundra: Pathways, rates, and environmental implications. Journal of Environ­ mental Quality.

+ Challinor, J.L. and P.L. Gersper (1975) Vehicle perturbation effects upon a tundra soil-plant system: II. Effects on the chemical regimes. Pro­ ceedings, Soil Science Society of America.

+ Chapin, F.S. III, K. Van Cleve and L.L. Tieszen. Seasonal nutrient dynamics of tundra vegetation at Barrow, Alaska. Arctic and Alpine Research.

+Collier, B.D., N. Stenseth, R. Osborn and S. Barkley (1974) A simulation model of energy acquisition and utilization by the brown lemming (Lemmus trimucronatus) at Barrow,- Alaska. Oikos, vel. 25.

+Coyne, P.I. and J.J. Kelley. Carbon dioxide exchange over the Alaskan arctic tundra: Meteorological assessment by an aerodynamic method. Journal of ApPlied Ecology.

+ Custer, T.W~ and F.A. Pitelka. Correction factors for digestion rates for prey taken by snow buntings (Plectrophenax nivalis). Condor.

+ Ehl.eringer, J.R. and P.C. Miller. Water relations of selected plant species in the alpine tundra, Colorado. Ecology.

+ Fenchel, T. The quantitative importance of the benthic microfauna of an arctic tundra pori.d. Hydrobiologia.

+ Gersper, P.L. and J.L. Challinor (1975) Vehicle perturbation upon a tundra soil-plant system. I. Effects on-morphological and physical environ­ mental properties of the soils. Proceedings, Soil Science Society of America.

Hobbie, J.E. and P. Rublee (1975) Bacterial production in an arctic pond. Verh. Int. Verein. Limnol., vel. 19.

+MacLean, S.F., Jr. Calcium in the reproduction of arctic sandpipers: Supply and demand. Journal of British Ornithological Society.

+ Outcalt, S.I., C. Goodwin, G. \feller and J. Brown. A digital ·computer simulation of the impact of snow fencing and urbanization on the annual snow hydrological and soil thermal regime at Barrow, Alaska. Water Resources Research; also USA CRREL Research Report.

... + Peterson, K.M. and W.D. Billings. Carbon dioxide flux from tundra soils and vegetation as related to temperature at Barrow, Alaska. The American Midland Naturalist.

Peterson, E.M. and G.O. Batzli. Activity patterns in natural populations of the brown lemming (Lemmus trimucronatus). Journal of Mammalogy.

Shaver, G.R. and W.D. Billings. Root production and root turnover in a wet tundra ecosystem, Barrow, Alaska. Ecology.

+ Stoner, W.A. and P.C. Miller. Water relations of plant species in the wet coastal tundra at Barrow, Alaska. Arctic and Alpine Research.

+Tieszen, L.L. (1975) co exchange in the Alaskan arctic·tundra: Predicted and measured course 2 of photosynthesis. Photosynthetica, vol. 9, no. 3.

+ Tieszen, L.L. and D.A. Johnson. Seasonal pattern of photosynthe- sis in individua! grass leaves and other plant parts in arctic Alaska with a portable 4co system. Botanical Gazette. 2 lc. Submitted

Bunnell, F.L. and·K-. Scouliar. ABISKO - a computer simulation model of carbon flux in tundra ecosystems. Structure and Function of Tundra Ecosystem (o.w. Heal and T. Rosswall, Eds.). Bull. Ecol. Res. Comm., Swedish Natural Science Council.

+ Bunnell, F.L., D.E.N. Tait, P.W. Flanagan and K. Van Cleve. Microbial respiration and weight loss: A general model of the influences of abiotic variables. New Bryologist.

+ Chisholm, S.W. and R.G. Stress. Environmental and intrinsic control o~ · feeding rates in arctic~~: Journal of Fis~~ies Research Board, ~~ CctJ!~~datf :L Plld~~~£..t1/, ~u.X---' ~~ ~in" ~1Pl:'li It .a . .-- {' ~ J . ' :iJUJ?.rC wrJ:.A.>€- '.An-f!()/1/ ~Ul--/-t-cn_,rV!/7/Z /1."1£~· ~1/;e/ + Guymon, G.L. and J .N. Luthin. A u1Ue0. heat and mo~sture transport model :~ for arc~ic soils. Water Resources Research.* · ·

+ Guymon, G.L. Summer soil-moisture temperature relationships for arctic ·tundra, Barrow, Alaska. Arctic and Alpine Research.*

+Hobbie, J.E. and R.J. Daley. Methods for direct counts of bacteria by epi-fluorescence. Limnology and-Oceanography.

Holleman, D.F., R.G. White and J.R. Luick. New isotope methods for estimating milk intake and yield. Journal of Dairy Science.*

+ Kallio, S. and V. Alexander. Nitrogen fixation by Peltigera aphthosa in Alaska. Bryologist.

+Lord, N.W., M.A. Atwater and J.P. Pandolfo. Arctic tundra lakes as centers of heat-moisture convection cells. Arctic and Alpine Research •

... ~ . :t- Miller, P.C., W. Stoner and L.L. Tieszen. A model o"£ stand p.hetosynthesis for the wet meadow tundra, Point Barrow, Alaska. Arctic and Alpine

Research. A t- f2u.G&.c-/ ..1 ,i_ 'J r f/c{/:ic , i> e:~&e {u;Jl- <'( 611 e£uc,;._; .i/YL t'- f t?li. iA/I'Y\Al/l.~{tJr/[/ cuvvd.. Ccei~'}Lo/ 7..l1i¥ ... ----..::-ra '\1 t ' Tieszen, L.L., D.A. Johnson and M.A. Leek. Translocation of photosynthetically assimulated 14-carbon dioxide in three Arctic grasses. £a~ at Barrow, Alaska. Canadian Journal of Botany.

2. Proceeding Volumes

'2a. Published

(+)Alexander, V. (1974) A synthesis of the IBP Tundra Biome circumpolar study of nitrogen fixation. In Soil Organisms and Decomposition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 109-121.

(+)Allessio, M. and L.L. Tieszen (1974) Patterns of translocation and alloca­ tion of 14C-photoassimilate in situ studies with Dupontia fischeri, R. Br., Barrow, Alaska. In Primary Production and Production Processes, Tundra Biome (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 219-229.

(+)Atwater, M.A. and J.P. Pandolfo. Tundra environmental changes induced by urbanization. In Climate of the Arctic (G. Weller and S. Bowling, Eds.). Proceedings of the AAAS-AMS Symposium, Fairbanks, Alaska, August 1973, Geophysical Institute, University of Alaska.

(+)Barsdate, R.J., V. Alexander and R.E •. Benoit (1973) Natural oil seeps at Cape Simpson, Alaska: Aquatic effects. Proceedings of the Symposium on the Impact of Oil Resource Development on Northern Plant Communities, Occasional Publications on Northern Life No. l, University of Alaska, p. 91-95. (+)Billings, W.D., G.R. Shaver and A.W. Trent (1974) Temperature effects on growth and respiration of roots and rhizomes in tundra graminoids. In Primary Production and Production Processes, Tundra Biome (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 57-63.

(+)Bonde, E.K. and M.F. Foreman (1974) Growth and development of arctic and alpine grasses in experimental gardens at various altitudes in Colorado, U.S.A. In Primary Production and Production Processes, Tundra Biome (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockho~, p. 87-97.

'(+)Bonde, E.K., M.F. Foreman, T.A. Babb, S. Kjelvik, J.D. McKendrick, W.W. Mitchell, L.L. Tieszen, F.J. Wooding and W. Younkin {1.974) Growth and development of three agronomic species in pots ( 11phytometers"). In Primary Production and Production Processes, Tundra Biome (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 99-110. ~

{+)Brown, J. (1973) Summary of the 1971 U.S. Tundra Biome Program. Proceed- i s IV International Meetin on the Biola ical Productivit of Tundra, Leninr:rad, U.S.S.R. F. E. Wielgolaski and T. Rosswall, Eds. • IBP Tundra Biome Steering Committee, Stockholm, p. 306-31.3 • . ' ... (+)Brown, J. and A.K. Veum (1974) Soil properties of the International Biome sites. In Soii Organisms and Decomposition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 27-48.

(+)Brown, J., H. Coulombe and F. Pitelka (1970) Structure and function of the tundra ecosystem at Barrow, Alaska. In Productivity and Con­ servation in Northern Circumpolar Lands (W.A. Fuller and P.G. Kevan, Eds.). IUCN, Merges, Switzerland, p. 41-71.

(+)Bunnell, F. (1972) Lemmings -models and the real world. Proceedings Summer Computer Simulation Conference, 1972, San Diego, p. 1183-1197.

(+)Bunnell, F. and P. Dowding {1974) ABISKO - a generali.zed decomposition model for comparisons between sites. In Soil Organisms and Decompo­ sition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome ·. Steering Committee, Stockholm, p. 227-247.

{+)Bunnell, F. and D. Russell (1973) A reindeer's view of the boreal forest ecosystem. Proceedings Summer Computer Simulation Conference, Montreal, val. 2, p. 722-728.

{+)Bunnell, F. and D.E.N. Tait {1974) Mathematical simulation models of decompo­ sition processes. In Soil Organisms and Decomposition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 207-225.

(+)Campbell, W.B., R.W. Harris and R.E. Benoit (1973) Response of Alaskan tundra microflora to crude oil spill. Proceedings of the Sym~osium on the Impact of Oil Resource Development on Northern Plant Communi­ ties, Occa~ional Publications on Northern Life No. l, University of Alaska, p. 53-62.

(+)Flanagan, P.W., D. French, 0. Heal and K.K. 'Lindley (1974) Microbiology and decomposition data bank (MAD~. In Soil Organisms and Decomposi­ tion in Tundra (A.J. Holding et al., Eds. ) • IBP Tundra Biome Steer­ ing Committee, Stockholm, p. 389-395.

(+)Flanagan, P.W. and A. Scarborough (1974) Physiological groups of decom­ poser fungi and tundra plant remains. In Soil Organisms and De­ composition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 159-181.

{+)Flanagan, P.W. and A.K. Veum (1974) Relationships between respiration weight loss, temperature, and moisture in organic residues on tundra. In Soil Organisms and Decomposition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 249-277•

(+)Flint, P.S. and P.L. Gersper (1974) Nitrogen nutrient levels in arctic tundra soils. In Soil Organisms and Decomposition in tf!u.ria.ra.· :(A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 375-387. {+)Goodwin, C.W. and S.I. Outcalt. The development of a computer model of the annual snow-soil thermal regime in arctic tundra terrain. In Climate of the Arctic (G. Weller and S.A. Bowling, Eds.). Pro­ ceedings of the AAAS-ANS Symposium, Fairbanks, Alaska, August 1973, Geophysical Institute, University of Alaska. . (+}Hobbie, J.E. (1973) Arctic limnology: A review. In Alaska Arctic Tundra, Arctic Institute of North America Technical Paper No. 25 (M.E. Britton, Ed.), p. 127-168.

(+)Holmgren, B., C. Benson and G. Weller (In prep.) A study of the breakup · on the arctic slope of Alaska by ground, air and satellite observations. In Climate of the Arctic (G. Weller and S.A. Bowling, Eds.). Pro­ ceedings of the AAAS-AMS Symposium, Fairbanks, Alaska, August 1973, Geophysical Institute, University of Alaska.

(+)Ives, J.D. (1973) Permafrost and its relationship to other environmental parameters in a mid-latitude, high-altitude setting, Front Range, Colorado Rocky Mountains, U.S.A. North American .Contribution, Second International Permafrost Conference, National Academy of Sciences, p. 121-125.

(+)Johnson, D.A., M.M. Caldwell and L.L. Tieszen (1974) Photosynthesis in relation to leaf water potential in three alpine plant species. In Primary Production and Production Processes, Tundra Biome, (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 205-210.

(+)Johnson, P.L. and L.L. Tieszen (1973) Vegetative research in arctic Alaska. In Alaska Arctic Tundra, Arctic Institute of North America Technical Paper No. 25 (M.E. Britton, Ed.), p. 169-198.

(+}Kelley, J.J. and P.I. Coyne (1973) A ca~e for comparison and standardiza­ tion of carbon dioxide reference gases. Proceedings of the Inter­ biome Workshop on Gaseous Exchange Methodology, Terrestrial Primary ProductiOTl, Oak Ridge National Laboratory, p. 163-181.

· {+)MacLean, S .F., Jr. ( 1974) Primary production, decomposition and invert e­ . brate activity in tundra ecosystems - .A correlative analysis •. In Soil Organisms and Decomposition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 197-206.

(+)MCCown, B.H. (1973) The influence of soil temperatures on plant growth and survival in Alaska. Proceedings of the Symposium on the Impact of Oil Resource Development on Northern Plant Communities. Occa­ sional Publications on Northern Life No. 1, University of Alaska, p. 12-33.

~~. ~~...,. .. (+)McCown, B.H., F.J. Deneke, W. Rick~d and L.L~ Tiesz~n (1973) The response of Alaskan terrestrial plant communities to the presence of petroleum. Proceedings of the Symposium on the Impact of Oil Resource Develop­ ment on Northern Plant Communities, Occasional Publications on Northern Life No. l, University of Alaska, p. 34-43 •. .. (+)McCown, D.D. and F.J. Deneke (1973) Plant germination and seedling growth as affected by the presence of petroleum. Proceedings of the Symposium on the· 'Impact. of Oil Resource Development on Northern Plant Communi­ ties, Occasional Publications on Northern Life No. 1, University of · Alaska, p. 44-51.

(+)McCown, B.H., J._BJ:"own and R.J. Barsdate (1973) Natural oil seeps at Cape Simpson; Alaska:. Localized influences on terrestrial habitat. I • Proceedine;s of the Symposium on the Impact of Oil Resource Develop­ ment on Nortlwrn Plant Conmtunitif's, Occasional Publications on Northern Life No. 1, University of Alaska, p. 86-90. .. c ...• (+)Miller, O.K., Jr. and G.A. Laursen (1974) Belowground fnngal biomass on U.S. Tundra Biome sites at Barrow, Alaska. In Soil Organisms and Decompo­ sition in Tundra (A.J. Holding et al., Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 151-158.

(+)Moore, R.T., J. Ehleringer, P.C. Miller, M.M. Caldwell and L.L. Tieszen . ' (1974) Gas exchange studies of four alpine tundra species at Niwot Ridge, Colorado. In Primary Production and Production Processes, Tundra Biome (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 211-217.

(-f'}Ng; ·E. and P.C. Miller. A model of the effect of tundra vegetation on soil temperature. In Climate of the Arctic (G. Weller and S.A. Bowling, Eds.). Proceedings of the AAAS-AMS Symposium, Fairbanks, Alaska, August 1973, Geophysical Institute, University of Alaska. (+)Oechel, W.C. and N.J. Collins (1974) Seasonal patterns of co; exchange in arctic bryophytes. In Primary Production and Product~on Processes, Tundra Biome (L.C. Bliss and F.E. Wielgolaski, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 197-203.

(+)Pitelka, F.A. (1973) Cyclic pattern in lemming pqpulations near Barrow, Alaska. In Alaska Arctic Tundra (M.E. Britton, Ed.) •. Arctic Insti­ tute of North America Technical Paper No. 25, p. 199-215.

(+)Ties~en, L.L. {1972) Photosynthesis in relation to primary production. Proceedings IV International Meeting on the Biological Productivity of Tundra, Leningrad, U.S.S.R. (F.E. Wielgolaski and T. Rosswall, Eds.). IBP Tundra Biome Steering Committee, Stockholm, p. 52-62.

(+)Tieszen, L.L., D.A. Johnson and M.M. Caldwell (1973) A portable system f~r the mea=~ement of photosynthesis using carbon-14 dioxide. Proceed­ ings of"Interbiome Workshop on Gaseous Exchange Methodology in Ter­ restrial Primary Production, Oak Ridge National Laboratory, EDFB-IBP- 73-6, p. 79-93. (Also in Photosynthetica, vol. 8, no. 3, 1974.)

(+)Timin, M.E. and B.D. Collier (1972) Simulating the arctic tundra ecosystem near Barrow, Alaska. Proceedings of the Summer Computer Simulating Conference, San Diego, 14-16 June, p. 1198-1204.

(+)Van Cleve, K. (1974) Organic matter quality in relation to decomposition. In Soil.Or anisms and Decem osition in Tundra (A.J. Holding et al., Eds. • IBP Tundra Biome Steering-Committee, Stockholm, p. 311-323.

2b. In Press

Heal, O.W. and S.F. MacLean, Jr. Comparative productivity in ecosystems-­ Secondary productivity. In The Unifying Concepts of Ecology. Papers presented at the First International Congress of Ecology, The Hague, Netherlands; September 1974.

of tundra invertebrates. ~~~~~~~~~~~~~~~~~~~~~ (F.J. Vernberg,

, McCown, B.H. (1975) Physiological responses of root systems to stress con- - ditions. In Physiolop.;ical Adaptation to the Environment (F.J. Vern­ berg, Ed.). Intext Press, p. 225-237. ... + Miller., P.C., B.D. Collier and F. Bunnell. Development of ecosystem modeling in the U.S. IBP Tundra Biome. Systems Analysis in Ecology, Vol. III.

Person, S.J., R.G. White and J.R. Luick (l974) In vitro digestibility of forages utilized by Rangifer tarandus.. Proceedings of the First International Reindeer and Caribou S osium, Fairbanks J.R. Luick, P.C. Lent, R.G. White and D.R. Klein, Eds.), p. 251-256.*

Tieszen, L.L. and N.K. Wieland (1975) Physiological ecology of arctic and alpine photosynthesis and respiration. In Physiological Adantation to the Environment (F.J. Vernberg, Ed.). Intext Press, p. 157-200.

West, G. and D.W. Norton (1975) Metabolic adaptations of tundra birds. In Physiological Adaptation to the Environment (F.J. Vernberg, Ed.). Intext Press, p. 301-329.

+ White, R.G. (1975) Some aspects of nutritional adaptations of Arctic herb­ ivorous mammals. In Physiological Adaptation to the Environment (F.J. Vernberg, Ed.). Intext Press, p. 239-268.

+ White, R.G. and A.M. Gau. Volatile fatty acid (VGA) production in the rumen and cecum of reindeer. Proceedings of the First Interna­ tional Reindeer and Caribou Symposium (J.R. Luick, P.C. Lent, R.G. White and D.R. Klein, Eds.), p. 284-289.

2c. Submitted~

Billings, W.D., K.M. Peterson, G.R. Shaver and A.W. Trent. Effect of temperature on root growth and respiration in a tundra ecosystem, Barrow, Alaska. Proceedings of Symposi·m: The Belovground Eco­ system,_Ft. Collins, Colorado, Septemoer l973 • . + Chapin, F.S. III. Thermal adaptations of the phosphate absorption in ·. plants along a latitudinal gradient. Proceedings of Symposium: The Beloyground Ecosystem, Ft. Collins, Colorado, September 1973.

+Dennis, J.G. Patterns of belowground phytomass distribution in arctic tundra at Barrov, Alaska. Proceedings of Symposium: The Below­ ground Ecosystem, Ft. Collins, Colorado, September 1973.

Laursen, G.A. and O.K. Miller, Jr. The distribu~ion of fungal hyphae in arctic soil on Tundra Biome sites-near Barrow, Alaska. Proceedings o:f Symposium: The Belowground Ecosystem, Ft. Collins, Colorado, Septem­ ber 1973.

Webber, P.J., D.E. May and F.E. Wielgolaski. Biomass partition- ing in tundra vegetation. Proceedings of SymposiUm: The Belowground Ecosystem, Ft. Collins, Colorado, September 1973.

White, R.G., J.R. Luick, D.E. Russell and F.L. Bunnell (1974) A compari- --. son of four methods for estimating food intake o:f reindeer and caribou. ~ Proceedines of the IV International Symposium on Ruminant Physiology, 19-23 August 1974, Sydney, Australia • . • ... 3. Books

3a. Published

(+)Billings, W.D. (1974) Arctic a.nd alpine vegetation: Plant adaptations to cold summer climates. Chap. BA in Arctic and Alpine Environments (J.D. Ives and R.G. Barry, Eds.). London: Methuen & Co., p. 403-443.

(+)Webber, P.J. (1974) Tundra primary productivity. In Arctic and Alp.ine Environments (J.D. Ives and R.G. Barry, Eds.). London: Methuen, p. 447-473.

3b. In Press - Prudhoe Bay Volume (available spring or ear~ summer 1975)

Benson, C., R. Timmer, B. Holmgren and S. Parrish. Observations of the seasonal snow cover and radiation climate at Prudhoe Bay, Alaska.

Brown, J., R. Haugen and S. Parrish. Selected climatic and soil thermal characteristics of the Prudhoe Bay region.

Douglas, L. and A. Bilgin. Nutrient regimes of soils, landscapes, lakes and streams, Prudhoe Bay, Alaska.

Everett, K.E. Soil and landform associations at Prudhoe Bay: A soil map of the Tundra Biome area.

Feist, D. Population studies of lemmings in the coastal tundra of Prudhoe Bay, Alaska.

MacLean, S.F., Jr. Ecology of tundra invertebrates at Prudhoe Bay, Alaska.

Mitchell, W. a.nd J.D. McKendrick. Responses of arctic, boreal, and alpine biotypes in reciprocal transplants.

Murray, B.M. and D.F. Murray. Provisional checklist to the vascular "Qryopbyte and lichen flora of Prudhoe Bay, Alaska. Appendix A.

Neiland, B.J. and J .R. Hok. Vegetation survey of the Prudhoe Bay area.

Norton, D.W., I.W. Ailes and J.A. Curatolo. Ecological relationships of the inland tundra avifauna near Prudhoe Bay, Alaska.

Underwood, L.S. Notes on the arctic fox (Alopex lagopus( in the Prudhoe Bay area of Alaska.

Webber, P.J. and D.A. Walker. Vegetation and landscape analysis at Prudhoe Bay, Alaska: A vegetation map of the Tundra Biome area.

White, R.G., B.R. Thomson, T. Skogland, S.J. Person, D.E. Russell, D.F. Holleman and J.R. Luick. Ecology of Caribou at Prudhoe Bay, Alaska.

:Williams, M.E., E.D. Rudolph and E.A. Schofield. Selected data on lichens '· mosses and vascular plants on the Prudhoe Bay tundra • ... 3c. Submitted

3c-l. Other volumes

+ Batzli, G.O. The role of small mammals in arctic ecosystems. Submitted to Small Mammals, Their Population Structure and Impact on World Ecosystems. IBP Series, Cambridge University Press.

+Tieszen, L.L., P.C. Miller, M.C. Lewis, J.C. Mayo, F.S. Chapin III and W.C. Oechel. Processes of primary production in tundra. In Tundra Synthesis Volume, IBP Series, Cambridge University Press.

White, R.G., F .L. Bunnell, B. Hubert and E. Gaare (1974) Ungulates on tundra ranges. In Tundra Synthesis Volume, IBP $eries, Cambridge

3c-2. U.S. Tundra Biome Project Volume (only titles having available manuscripts) The Structure and Function of the Tundra Ecosystem. Vol. II: U.S. Tundra Biome Project Reports

+Alexander, V., M. Billington and D.M. Schell. Nitrogen fixation in arctic and alpine tundra.

+ Allessio, M.L. and L.L. Tieszen. Translocation and allocation of 14C­ photoassimilate by Dupontia fischeri.

+ Atwater, M.A. and J.P. Pandolfo. Meteorological perturb~tions caused by urbanization.

+Banks, E., • Brooks and • Schnell. Home range and activity of the brown ·.lemmings ( Lemmus trimucronatus) as determined by radiotelemetry.

+ Barry, R. and E. LeDrew. Climate and energy budgets of Niwot Ridge.

+ Billings, W.D., K.M. Peterson and G.R. Shaver. Growth, turnover and respiration rates of roots and tillers in tundra graminoids.

+ Bonde, E.K. and M.F. Foreman. Responses of arctic, boreal, and alpine grasses grown in Colorado and of phytometers grown in arctic, alpine, boreal, and montane climates.

+ Caldwell, M.M., D. Johnson and M. Fareed. Growing season dynamics and photosynthetic capacity of two al~ine tundra communities.

+Cameron, R.E., A. Knox and F._Morelli. The role of algae in tundra soils.

+Cameron, R.E., F. Morelli and A. Knox. Protozoan associates of tundra soil algae.

+ Chapin, F.S. III. Nutrient uptake and utilization by tundrayvegetation.

+ Coulon, C. and V. Alexander. Track autoradiography measurements of indi­ vidual phytoplankton species primary productivity in an arctic pond (Aquatic volume) •

. + Coyne, P.I. and J.J. Kelley. co exchange over the Alaskan arctic tundra: Meteorological assessment by 2an aerodynamic method.

... + Custer, T.W. and F.A. Pitelka. Social organization, habitat utilization, and bioenergetics in the Lapland longspur near Barrow, Alaska.

+ Douce, K. and D. Crossley. Acarina community structure of the arctic coastal tundra.

+ Edwards, J. Invertebrate communities of subarctic alpine. tundra, Eagle Summit, Alaska.

+ Ehleringer, J.R. and P.C. Miller. Water relations of selected plant species in the alpine tundra, Colorado.

+ Everett, K.R. Principal soils and geomorphic units of the U.S. IBP Tundra Biome sites, Barrow, Alaska.

1 + Feist, D. and • Whitney. Population dynamics of arctic and subarctic microtine rodents.

+Holmgren, B., C. Benson and G. Weller. Radiation climate and snow breakup in the coastal areas of the Arctic Slope, Alaska.

+ Koranda, J .J., J .R. Martin, M. Stuart and B. Clegg. Radio-tracer measurement of transpiration in tundra vegetation, Barrow, Alaska.

+ Laursen, G. and O.K. Miller. Fungi in tundra soils.

+ McCown, B.H. Observations on the interaction of organic nutrients, soil nitrogen, and soil temperature on plant growth and survival· in the arctic environment.

+McKendrick, J.~., V.J. Ott and G.A. Mitchell. Effects of nitrogen and ~~os­ phorus Iertilization on the carbohydrate reserve and seasonal nitro- gen and.phosphorus levels in Dupontia fischeri and .Arctagrostis latifolia shoots and rhizomes near Barrow, Alaska.

+ May, T. and C. Braun. Pppulation dynamics and habitat utilization of white-tailed ptarmigan in the Colorado alpine.

+Miller, P.C., .M.. Lewis, W. Stoner, • McCraw, • Riggan and L.L. Tieszen. Models of growth, allocation, and population dynamics of Dupontia fischeri, Barrow, Alaska.

+Miller, P.C., W. Stoner and J.R. Ehleringer. Some aspects of water relations of arctic and alpine plants.

+Murray, D.M., B.M. Murray and W.A. Weber. DocUmentation of the flora of U.S. IBP Tundra Biome sites. Oechel, W.C. and B. Svienbjornsson. Primary production processes.. in arctic bryophytes at Barrow, Alaska.

+Outcalt, S., C. Goodwin, G. Weller and J. Brown. A digital computer simu­ lation of the annual snow and soil thermal regimes at Barrow, Alaska.

+ Rastorfer, J.R. Physiological ecology of arctic bryophytes: composition, ' \.- structure, and bryomass of the bryophyte sinusial in the wet tundra meadow conn:nunities of·u.s. IBP Tundra Biome sites 2 and 4. .+ Steere, W.C. Ecology, phytogeography and floristics of arctic Alaskan bryophytes.

+Tieszen, L.L., J. Dennis and • Vetter. Seasonal dynamics of above and belowground production at Barrow, Alaska.·

+ White, R.G. · et al. Ecology of caribou at Prudhoe Bay.

+Williams, M.E., E.D. Rudolph and E.A. Schofield. The role of lichens in the structure productivity and mineral cycling of the wet coastal Alaskan tundra.

4. Miscellaneous Short Contributions, Series and Notes (including abstracts); published only)

(+)Dillon, R.D. and J.D. Hobbs (1973) Estimating quantity and quality of the biomass of benthic protozoa. Proceedings of the South Dakota Academy of Sciences, val. 52, p. 47-48.

Flanagan, P.W. (1974) Biomass, yield, maintenance and production charac­ teristics of tundra litter fungi. Soc. Gen. Microbial., val. 2 (abst.).

(+)McCown, B.H., P. Coyne, J. Brown and R.P. Murrmann (1972) Chemical indi­ cators of arctic biological ann environmental activities. U.S. Army Cold Regions Research and Engineeripg Laboratory (USA CRREL) Research Report 301, 27 p.

'(+')Norton, D.W. (1971) Two Soviet recoveries· of Dunlins banded at Pt. Barrow, Alaska. ftuk, vol. 88, p. 927.

(+)Norton, D.W. and U.N. Safriel (1971) Homing and nesting semipalmated ~andpipers displaced from Barrow, Alaska. Bird-Banding, vol. 42, no. 4, p. 295-297. (+)Rastorfer, J.R., H.J. Webster and D.K. Smith (1973) Floristic and ecologic studies of bryophytes of selected habitats at Prudhoe Bay, Alaska. Institute of Polar Studies Report No. 49, Ohio State University.

+Williams, M.E., E.A. Schofield and E.D. Rudolph. Lichens in the wet Alaskan coastal tundra. Ohio Academy of ..Science Annual Meeting, John Carroll University, Cleveland, Ohio:; 27 April 1973.

5. Manuscripts - Not Yet Submitted to a Journal or Other Publication but in Various Stages of Preparation and Internal Review ... Bunnell, F .L. and J. Brown. Structure and function of the Barrow ter­ restrial ecosystem. To be submitted to Structure and Functioning of Tundra Ecosystems, Swedish Natural Science Council. Bunnell, F.L., K. Scoullar and P. Dowding. Between site comparisons of tundra carbon flux using simulation models. To be submitted to Tundra Synthesis Volt~e, IBP Series, Cambridge University Press. +Bunnell, f.L., R.G. White and D.E. Russell. A simulation model o~ the activity patterns and associated energy expenditures o:f Rangi~er near P.rudhoe·13ay; !Q~ska...... ' ...... """ ~ ...

CQapin, F.S. III and A. Bloom. Phosphate absorption: A ~ield study o~ acclimation and adaption to low temperature by tundra plants.

+Crow, M., P.C. Miller, L.L. Tieszen and G. Shaver. A model o~ allocation of carbon and growth o~ Dupontia ~ischeri at Point Barrow, Alaska.

+ Custer, T.W. and F.A. Pitelka. Time-activity patterns and energy budget of nesting Lapland longspurs (Calcarius lapponicus) near Barrow, Alaska.

+ Ehleringer, J.R. and P.C. Miller. A simulation model of plant water relations and production in the alpine tundra, Colorado.

Flanagan, P.W. and A.M. Scarborough. Comparative mycoecological studies in taiga and tundra sites. To be submitted to Canadian Journal of Botany or Journal of Ecology.

Flanagan, P.W. and A.M. Scarborough. Weight loss respiration and nutri­ ent release from aboveground plant residues in tundra. To be sub­ mitted to Canadian Journal of Botany or Journal of Ecology.

+Glauser, R., P.L. Gersper and P.S. Flint. Micro-di~fusion for determining exchangeable ammonia in KCl and HCl soil extracts.

Heal, O.W. and P.W. Flanagan. To be submitted to Tundra Synthesis Volume, IBP Serje~, Cambridge University PresF_

McRoy, C.P. and V. Alexander. Nitrogen kinetics in emergent aquatic plants in Arctic Alaska. University of Alaska, Institute of Marine Sciences Publication No~·:,~·

":~·~.--;-.. • ' ,··-.· f'·O'{"~_)•t • +Miller, P.C., W.A. Stoner, L.L. Tieszen, M. Allessio, B. McCown, T. Chapin and G. Shaver. A model of carbohydrate and mineral allocation in tundra p~~t _.production.

+ Ng, E. and P.C. Miller. Validation of a model of the effect of tundra vegetation on soil temperatures.

+Riggan, P., P.C. Miller and L.L. Tieszen. A simulation of nutrient, water, and growth dynamics in an arctic tundra graminoid,_ Dupontia fischeri.

+ Simons, A.P. and P.L. Gersper. A pedological investigation of soils on high-centered polygons in the vicinity o~ Barrow, Alaska.~ Arctic and Alpine Research.

Stanley, D. Epipelic algal productivity in tundra ponds and lakes near Barrow, Alaska.

Stanley, D. Models of epipelic algal production in a tundra pond.

,., ' ·stanley, D. and R. Daley. ·.Environmental control o~ primary productivity in Alaska tundra ponds. ... +Tieszen, L.L., P.I. Coyne and P.C. Miller. Measured and simulated CO exchange and productivity in an Alaskan arctic tundra. To be subg mitted to Science.

+ West, G. and H. Pohl. Energy demands of high latitude resident redpolls. To be submitted to Oecologia. 6. LIST OF U.S. TUNDRA BIOME DISSERTATIONS

6a.. Masters Theses (M.S. unless othervise indicated)

·6&-1. Completed

+Challinor, Josephine L. (1971) Vehicle perturbation effects upon a tundra soil-plant s,ystem. University of California {Eerkeley), 240 p.

+Cole, F.R. €~974} Food·habits.and digestive. efficiencies of two Iiticrotine rodents Lemmus trimucronatus and Microtus ocbrogaster. University of Illinois, Ms. Research Report.

+Ehleringer, James (1973) Water relations in the alpine tundra, Niwot Ridge, Colorado. San Diego State University, 111 p.

+Fareed, Marcee (1973) Canopy structure and phenology of alpine tundra vegetation. Utah State University, 43 p.

+Goodwin, Cecil W. (1972) An annual active layer simulator for permafrost regions. University of Michigan, 71 p.

+Johnson, Douglas A. (1973) Field measurements of photo5,y.nthesis and leaf growth rates of three alpine plane ~pecies. Utah State University, 25 p.

·+!allendorf, Robert (1974) Population dynamics and the ecological role of Lepidurus arcticus in coastal tundra ponds, Barrow, Alaska. Uni­ versity of Cincinnati, 107 p.

+La:wrence, W.T. (1974) A model of the population dynamics of Dupontia fischeri. San Diego State University, 104 p.*

+LeDrew, Ellsworth F. (1974) The radiation and energy budget of an alpine tundra in Colorado during the growing season, 1973. University of Colorado, 147 p. and appendix.

+Lindholm; George (1972) Studies of nitrate reduction of Eagle Summit soils and isolate cultures. University of Alaska, 64 p.

+May, Diane E. (1973) Models for predicting composition and production of alpine tundra vegetation from Niwot Ridge, Colorado. University of Colorado, 99 p.

+Munn, N.R. (1973) An examination of the inorganic nitrogen status of a soil of the Alaskan coastal tundra plain. Utah State University, 52 p.

+Ng, Edward (1974) Soil moisture relations in chaparral. San Diego State University, 114 p.*

+Penhale, Polly A. (1972) Food requirements of the nine-spined stickleback, Pungitius pungitius, in an arctic tundra lake of northern Alaska. North Carolina State University, 35 p.

* Cooperative sponsorship. + Copy in Biome fiie as of April 1975, see Brown. ~Peterson, R.M., Jr. Energetics and activity of the brown lemming (Lemmus trimucronatus) in its natural environment. University. of Illinois, Ms. Research Report.

+Reed, James P. (1974) Benthic metabolism in arctic coastal ponds, Barrow, Alaska. University of Cincinnati, 118 p.

+Rublee, Parke (1974) Production of bacteria in a pond. North Carolina State University, 39 p.

+Simons, A.P. (1973} A pedological investigation of high-centered poly­ gons in the vicinity of Barrow, Alaska. University of California (Berkeley), 156 p.

+Stoner, Wayne (1974) Water relations in the wet coastal tundra, Barrow, Alaska. San Diego State University, 71 p.

+Trent, Alex W. ( 1972) Measurement of root growth and respiration in arctic plants. M.A., Duke University, 75 p.

6a-2. In Preparation

Anderson, Carol. Statistical analysis of arctic soil denitrification and nitrification, with a cluster analysis of important denitrifying bacteria. University of Alaska.

Asbkenazie, Shoshana. Time activity budget of the semipalmated sand­ piper, Calidris pusilla. The Hebrew University of Jerusalem.

Buechler, Dennis G. Phosphorus regeneration studies in fresh water ciliates. University of South Dakota (;ermillion).

Campbell, Walton. Some investigations on the microbial ecology of arctic tundra soils. Virginia Polytechnic Institute and State University.

Cheslak, Edward. Runway utilization and foraging behavior of Lemmus tri­ mucronatus. San Diego State University.

Clement, L.E. Microhabitat distribution, energetics and functional role of Tipula carinifrons (Diptera: Tipulidae) in the tundra eco­ system of northern Alaska. University of Alaska.

Douce, G. Keith. The population dynamics and community analysis of the Acarina of the arctic coastal tundra. University of Georgia.

Harris, R.W., Virginia Polytechnic Institute and State University.

Osborn, Ronald. A comparative study of models of population dynamics of Lemmus trimucronatus. San Diego State University.

Russell, D.E. Computer simulation of Rangifer biology and management. M.F., University of British Columbia.

Skeel, Margaret. Aspects of the ecology of Collembola in the tundra ecosystem of northern Alaska. University of Alaska.

Walker, DoA. University of Colorado. - ; 6b. Ph.D. Dissertations 6b-1. Completed

+Bilgin, Aytekin (1975) Nutrient status of surface waters as related to soils and other environmental factors in a tundra ecosystem. Rutgers University, 201 p.

+Bunnell, Fred L. (1973) Computer simulation of nutrient and lemming cycles in an arctic tundra wet meadow ecosystem. University of California (Berkeley), 312 p.

+Chapin, F. Stuart III (1973) Morphological and physiological mechanics of temperature compensation in phosphate absorption along a latitudinal gradient. Stanford University, 134 p.*

+Chisholm, Sallie W. (1974) Studies on daily rhythms of phosphate uptake in Euglena and their potential ecological significance. State Uni­ versity of New York (Albany), 106 p.

+Norton, David W. (1973) Ecological energetics of calidridine sandpipers ·breeding in northern Alaska. University of Alaska,.. lz~~_]s;_~- , +Smith, David K. (1974) Floristic, ecologic, and phytogeographic studies of the bryopbytes in the tundra S+Ound Barrow, Alaska. University of Tennessee, 5 p.*

+Stanley, Donald W. (1974) Production ecology of opipelic algae in Alaskan tundra ponds. North Carolina State University, 151 p.

+Whitney, Paul ~· (1973) Population biology and energetics of three species of small mammals in the taiga of interior Alaska. University of Alaska, 258 p.*

6b-2. In Preparation

+Custer; Thomas. Bioenergetics and social organization in the Lap- land longspur (Calcarius lapponicus) near Barrow, Alaska. University of California (Berkeley).

Dalton, Anne (Knox). Virginia Polytechnic Institute.

Emerick, J.C. University of Colorado.*

Flint, Philip. Nitrogen cycling in arctic tundra soils near Barrow, Alaska. University of California (Berkeley).

Goodwin, Cecil. University of Michigan.

Johnson, Douglas A. Photosynthesis in relation to soil water po­ tential in arctic and alpine plant species. Utah State University. Komarkova, Vera. Alpine vegetation of the Indian Peaks area, Front Range, Colorado. University of Colorado.* Laursen, Gary A. Basidiomycetes in arctic tundra plant commupities. Virginia Polytechnic Institute and State University.

May, Diane E. University of Colorado.

May, Terry A. Bioenergetics of white-tailed ptarmigan. University of Colorado.

Person, Steven. Studies of the ~vitro digestibility of plant species .by Rangifer tarandus. University of Alaska.*

Prentki, Richard.. Phosph~rus cycling in tundra ponds. University of Ala§l~a. ·

Shaver, Gaius. Root growth and tiller production of graminoids in the tundra near Barrow, Alaska. Duke University.

Svernbjornsson, Bjartmar. Photosynthesis, respiration, and translocation in arctic populations Polytricum alpinum. McGill University.