Publications

Posters and Talks - Reports

Journal Articles

• Daniëls, F.J., Bültmann, H., Lünterbusch, C., Wilhelm, M. 2000. Vegetation zones and biodiversity of the North-American Arctic. Berichte der Reinhold-Tüxen-Gesellschaft. 12:131-151.
• Elvebakk, A. 1997. Tundra diversity and ecological characteristics of Svalbard. Wielgolaski, F.E. (eds.) Polar and Alpine Tundra. Elsevier. Amsterdam. pp. 347-399.
• Elvebakk, A., Elven, R., Razzhivin, V.Y. 1999. Delimitation, zonal and sectorial subdivision of the Arctic for the Panarctic Flora Project. Nordal, I., Razzhivin, V.Y. (eds.) The Species Concept in the High North - A Panarctic Flora Initiative. The Norwegian Academy of Science and Letters. Oslo. pp. 375-386. PDF
• Gould, W.A., Edlund, S., Zoltai, S., Raynolds, M.K., Walker, D.A., Maier, H.A. 2002. Canadian Arctic vegetation mapping. International Journal of Remote Sensing. 23:(21):4597-4609. PDF
• Gould, W.A., Raynolds, M.A., Walker, D.A. 2003. Vegetation, plant biomass, and net primary productivity patterns in the Canadian Arctic. Journal of Geophysical Research. 108:(D2):1-14. PDF
• Gould, W.A., Walker, D.A., Biesboer, D. 2003. Combining research and education: Bioclimatic Zonation along a Canadian Arctic Transect. Arctic. 56:(1):45-54. PDF
• Kataoka, M. 2009. ESRI Map Book, Volume 24. ESRI Press. Redlands, CA. 24(24). 120 . PDF - ESRI Map Book, Volume 24: Vegetation in the Vicinity of the Toolik Field Station, Alaska; Alaska Geobotany Center
• Raynolds, M.K., Walker, D.A., Maier, H.A. 2006. NDVI patterns and phytomass distribution in the circumpolar Arctic. Remote Sensing of Environment. 102:271-281. PDF
• Raynolds, M.K., Walker, D.A., Maier, H.A. 2005. Plant community-level mapping of arctic Alaska based on the Circumpolar Arctic Vegetation Map. Phytocoenologia. 35:(4):821-848. PDF
• Riedel, S.M., Epstein, H.E., Walker, D.A. 2005. Biotic controls over spectral reflectance of arctic tundra vegetation. International Journal of Remote Sensing. 26:(11):2391-2405. PDF
• Sappington, N. 2005. ESRI Map Book, Volume 20. ESRI Press. Redlands, CA. 20 (20). 120 . PDF - ESRI Map Book, Volume 20: Circumpolar Arctic Vegetation
• Walker, D.A. 2007. The Circumpolar Arctic Vegetation Map, the Alaska Arctic Tundra Vegetation Map, and the Arctic Geobotanical Atlas. Proceedings of the Fourth International CAFF Flora Group Workshop. 15:60-62. PDF
• Walker, D.A. 2000. Hierarchical subdivision of arctic tundra based on vegetation response to climate, parent material, and topography. Global Change Biology. 6:(S1):19-34. PDF
• Walker, D.A. 1999. An integrated vegetation mapping approach for northern Alaska (1:4 M scale). International Journal of Remote Sensing. 20:(15-16):2895-2920. PDF
• Walker, D.A. 1995. Toward a new circumpolar arctic vegetation map: St. Petersburg workshop. Arctic and Alpine Research. 31:169-178.
• Walker, D.A., Bay, C., Daniels, F.J.A., Einarsson, E., Elvebakk, A., Johansen, B.E., Kapitsa, A., Kholod, S.S., Murray, D.F., Talbot, S.S., Yurtsev, B.A., Zoltai, S.C. 1995. Toward a new arctic vegetation map: a review of existing maps. Journal of Vegetation Science. 6:(3):427-436. PDF
• Walker, D.A., Bhatt, U.S., Comiso, J.C., Epstein, H.E., Gould, W.A., Henry, G.H.R., Jia, G.J., Kokelj, S.V., Lantz, T.C., Mercado-Diaz, J.A., Pinzon, J.E., Raynolds, M.K., Shaver, G.R., Tucker, C.J., Tweedie, C.E., Webber, P.J. 2010. The Arctic: Land: Vegetation. Bulletin of the American Meteorological Society. 91:(7):S115-S116. PDF
• Walker, D.A., Elvebakk, A., Talbot, S.S., Daniels, F.J.A. 2005. The Second International Workshop on Circumpolar Vegetation Classification and Mapping: a tribute to Boris A. Yurtsev. Phytocoenologia. 35:(4):715-725. PDF
• Walker, D.A., Epstein, H.E., Jia, J.G., Balser, A.W., Copass, C., Edwards, E.J., Gould, W.A., Hollingsworth, J., Knudson, J., Maier, H.A., Moody, A., Raynolds, M.K. 2003. Phytomass, LAI, and NDVI in northern Alaska: Relationships to summer warmth, soil pH, plant functional types, and extrapolation to the circumpolar Arctic. Journal of Geophysical Research - Atmospheres. 108:(d2):8169. PDF
• Walker, D.A., Gould, W.A., Maier, H.A., Raynolds, M.K. 2002. The Circumpolar Arctic Vegetation Map: AVHRR-derived base maps, environmental controls, and integrated mapping procedures. International Journal of Remote Sensing. 23:(21):4551-4570. PDF
• Walker, D.A., Jia, G.J., Epstein, H.E., Raynolds, M.K., Chapin , F.S., III, Copass, C.D., Hinzman, L.D., Knudson, J.A., Maier, H.A., Michaelson, G.J., Nelson, F., Ping, C.L., Romanovsky, V.E., Shiklomanov, N. 2003. Vegetation-soil-thaw-depth relationships along a low-arctic bioclimate gradient, Alaska: synthesis of information from the ATLAS studies. Permafrost and Periglacial Processes. 14:(2):103-123. PDF
• Walker, D.A., Raynolds, M.K., Daniëls, F.J.A., Einarsson, E., Elvebakk, A., Gould, W.A., Katenin, A.E., Kholod, S.S., Markon, C.J., Melnikov, E.S., N.G., M., Talbot, S.S., Yurtsev, B.A., CAVM Team 2005. The Circumpolar Arctic Vegetation Map. Journal of Vegetation Science. 16:(3):267-282. PDF
• Walker, D.A., Raynolds, M.K., Maier, H.A., Barbour, E.M., Neufeld, G.P. 2010. Circumpolar geobotanical mapping: a web-based plant-to-planet approach for vegetation-change analysis in the Arctic. Viten. 1:125-128. PDF
• Walker, D.A., Walker, M.D., Gould, W.A., Mercado, J., Auerbach, N.A., Maier, H.A., Neufeld, G.P. 2010. Maps for monitoring changes to vegetation structure and composition: The Toolik and Imnavait Creek grid plots. Viten. 1:121-123. PDF

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Talks and Posters

• Auerbach, N.A., Walker, D.A. 1996. An electronic hierarchic geobotanical atlas for arctic system science. Purchase proceedings, presented at Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. Arendal, Norway, and Anchorage, AK, 19-24 May 1996/14-16 January 1997. Occasional Paper No. 52:26-27. PDF
• Barbour, E.M., Walker, D.A., Maier, H.A., Balser, A.W., Grimes, J.P., Heinrichs, T.A., Nolan, M., Prokein, P., Pylant, C.L., Raynolds, M.K., Rogan, L.M., Sharpton, V.L., Stahlke, D.L., Vockeroth, S.G. 2006. Arctic Geobotanical Atlas. Arctic Science Conference, Arctic AAAS Division Meeting. Fairbanks, AK October 2-4. PDF
• Gould, W.A., Raynolds, M.K., Walker, D.A., Edlund, S.A. 2001. Canadian Arctic vegetation and ecosystem properties. Fourth International Circumpolar Arctic Vegetation Mapping Workshop. Moscow, Russia April 10-13. PDF
• Maier, H.A., Walker, D.A., Barbour, E.M., Balser, A.W., Grimes, J.P., Heinrichs, T.A., Nolan, M., Prokein, P., Pylant, C.L., Raynolds, M.K., Rogan, L.M., Sharpton, V.L., Stahlke, D.L., Vockeroth, S.G. 2006. Arctic Geobotanical Atlas. 26th Annual ESRI International User Conference. San Diego, CA August 7-12. PDF
• Munger, C.A., Walker, D.A., Maier, H.A., Hamilton, T.D. 2008. Spatial analysis of glacial geology, surficial geomorphology, and vegetation in the Toolik Lake region: Relevance to past and future land-cover changes. Ninth International Conference on Permafrost. Fairbanks, AK June 29 - July 3. PDF
• Raynolds, M.K., Ananjeva, G.V., Drozdov, D.S., Daniëls, F.J.A., Einarsson, E., Elvebakk, A., Gould, W.A., Katenin, A.E., Kholod, S.S., Korostelev, Y.V., Maier, H.A., Markon, C.J., Moskalenko, N., Talbot, S.S., Walker, D.A. 2002. Second Draft of the Circumpolar Arctic Vegetation Map. ARCSS All-Hands Workshop. Seattle, WA February 20.
• Raynolds, M.K., Walker, D.A., Gould, W.A., Markon, C.J. 2001. Synthesis of Alaska and Canada. Fourth International Circumpolar Arctic Vegetation Mapping Workshop. Moscow, Russia April 10-13. PDF
• Walker, D.A. 2007. A Hierarchic Geobotanical Atlas. 41st Alaska Surveying and Mapping Conference. Fairbanks, AK 19-23 March. PDF
• Walker, D.A. 2001. Circumpolar Arctic Vegetation Map: Plan for Synthesis. unknown. unknown . PDF
• Walker, D.A. 2001. Welcome, history, progress, and future of the CAVM. Fourth International Circumpolar Arctic Vegetation Mapping Workshop. Moscow, Russia April 10-13. PDF
• Walker, D.A., Barbour, E.M., Maier, H.A. 2008. A Web-based Arctic Geobotanical Atlas and a New Hierarchy of Maps of the Toolik Lake Region, Alaska. Ninth International Conference on Permafrost, presented at Ninth International Conference on Permafrost. Fairbanks, AK, June 29 - July 3. 1893-1898. PDF
• Walker, D.A., Burian, J.C., Epstein, H.E., Gould, W.A., Jia, G.J., Maier, H.A., Raynolds, M.K. 2001. Controls on Arctic NDVI Patterns: a Zonal Analysis. B22C-0176, presented at AGU Fall Meeting. San Francisco, CA, December 10-14. 82:B22C-0176.
• Walker, D.A., Epstein, H.E., Kuss, P., Michaelson, G., Ping, C.L., Raynolds, M.K., Romanovsky, V.E., Tarnocai, C.T. 2004. Interactions of multiple factors for patterned-ground features across the Arctic bioclimate gradient. C12A-07, presented at AGU Fall Meeting. San Francisco, CA, December 13-17. 85:F424. PDF
• Walker, D.A., Maier, H.A., Barbour, E.M., Balser, A.W., Grimes, J.P., Heinrichs, T.A., Nolan, M., Prokein, P., Pylant, C.L., Raynolds, M.K., Rogan, L.M., Sharpton, V.L., Stahlke, D.L., Vockeroth, S.G. 2007. Legacy IPY Hierarchic GIS Database for the Arctic Observatory at Toolik Lake.. 41st Alaska Surveying and Mapping Conference. Westmark Hotel, Fairbanks, AK 19-23 March. PDF
• Walker, D.A., Raynolds, M.A., Moskalenko, N.G., Team, C. 2003. A physiognomic-based circumpolar Arctic Vegetation map. Eighth International Conference on Permafrost Extended Abstracts. Zurich, Switzerland, July 21 - 25. 177-178.
• Walker, D.A., Raynolds, M.K., Maier, H.A. 2003. The Circumpolar Arctic Vegetation Map: A tool for analysis of change in permafrost regions. C11E-05, presented at AGU Fall Meeting. San Francisco, CA, December 8 - 12. 84:C11E-05.
• Walker, D.A., Raynolds, M.K., Maier, H.A., Barbour, E.M., Neufeld, G.P. 2010. Circumpolar geobotanical mapping: a web-based plant-to-planet approach for vegetation-change analysis in the Arctic. Mapping and Monitoring of Nordic Vegetation and Landscapes Conference. Hveragerði, Iceland 16-18 September. PDF
• Walker, D.A., Raynolds, M.K., Maier, H.A., Murray, D.F., Markon, C.J., Talbot, S.S., Gould, W.A., Bliss, L.C., Edlund, S.A., Zoltai, S.C., Daniels, F.J.A., Wilhelm, M., Bay, C., Einarsson, E., Gundjonsson, G., Moskalenko, N.G., Ananjeva, G.V., Drozdov, D.S., Konchenko, L.A., Korostelev, Y.V., Melnikov, E., Ponomareva, O.E., Katenin, A.E., Kholod, S.S., Matveyeva, N.V., Safranova, I.N., Shelkunova, R., Yurtsev, B.A., Polezhaev, A.N., Elvebakk, A., Johansen, B.E., Trahan, N.G., Charron, T.M. 2002. Draft of the Circumpolar Arctic Vegetation Map. 53rd Alaska Science Conference of the American Association for the Advancement of Science Arctic Division. Fairbanks, AK September 18-21. PDF
• Walker, D.A., Walker, M.D., Auerbach, N.A., Maier, H.A., Neufeld, G.P. 2009. Toolik Grid Plots: Baseline canopy height and species composition in 1990. Mapping and Monitoring of Nordic Vegetation and Landscapes. Hveragerdi, Iceland 16-18 September. PDF
• Walker, D.A., Walker, M.D., Gould, W.A., Mercado, J., Auerbach, N.A., Maier, H.A., Neufeld, G.P. 2010. Maps for monitoring changes to vegetation structure and composition: The Toolik and Imnavait Creek grid plots. Mapping and Monitoring of Nordic Vegetation and Landscapes Conference. Hveragerði, Iceland 16-18 September. PDF

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Reports

• Gonzalez, G., Gould, W.A., Raynolds, M.K. 2000. 1999 Canadian transect for the Circumpolar Arctic Vegetation Map. AGC Data Report. . 89.
• Markon, C.J., Walker, D.A. 1999. Proceedings of the Third International Circumpolar Arctic Vegetation Mapping Workshop. USGS Open File Report No. 99-551. . 79. PDF
• Munger, C.A., Raynolds, M.K., Kade, A.N., Walker, D.A. 2005. Biocomplexity of Patterned Ground: Mould Bay Expedition. AGC Data Report. . 62. PDF
• Munger, C.A., Raynolds, M.K., Walker, D.A. 2004. July 2003 Banks Island Expedition: Vegetation, biomass, NDVI, soil, thaw layer, invertebrates, decomposition, biogeochemistry and turf-hummock studies. AGC Data Report. . 72. PDF
• Raynolds, M.K., Markon, C.J. 2001. Fourth International Circumpolar Arctic Vegetation Mapping Workshop. US Geological Survey Open File Report 02-181. . 98. PDF
• Walker, D.A., Lillie, A.C. 1996. Proceedings of the Second Circumpolar Arctic Vegetation Mapping Workshop and the CAVM-North American Workshop. Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. 52. PDF
• Walker, D.A., Maier, H.A., Barbour, E.M., Raynolds, M.K. 2011. Final Report for A web-based multi-scale Arctic Geobotanical Atlas (AGA) for the Toolik Lake Field Station, Arctic Alaska, and the Circumpolar Region. AGC Final Report. . 13. PDF
• Walker, D.A., Markon, C.J. 1996. Circumpolar arctic vegetation mapping workshop: abstracts and short papers. USGS Open File Report No. 96-251. . 121. PDF