Contenido: Vol.42, No. 1 February 2010

1-8 Doil Organic Characteristics in Sporadic Permafrost-affected Environment

9-18 An Analysis of Past and Future Changes in the Ice Cover of Two High-Artica lakes Based on Symthetic Aperture Radar

19-33 Alpine Peatlands of the Andes, Cajamarca, Perú

34-44 The Respinse of Taku and Lemon Creek Glaciers to Climate

57-66 Sediment Melt-Migration Dynamics in Perennial Atartic Lake Ice

67-75 Micromorphology of an Early Holocene Loess-Paleosol Sequence, Central Alaska, U.S.A.

76-88 Distribution and Climatic Relationships of the American Pika in the Sierra Nevada and Western Great Basin, U.S.A.; Periglacial Landforms as Refugia in Waeming Climates

89-97 Twentieth Century Temperature Trends in Colorado’s San Juan Mountains

98-105 The Influence of an Extensive Dust Event on Snow Chemistry in the Southern Rocky Mountains

106-112 Living on the Esge: Can Eusaian Red Squirrels Persist in Extreme High.elevation Habitats?

113-116 Voles Are Attracted to Fertilizer in Field Experiments

117-128 Alpine Soil Temperature Variability at Multiple Scales

129 In Memoriam Mark Borisovitch

130-137 Book Reviews

Contenido: Vol.42, No. 2 May 2010

139-151 Alpine Nodal Ecology and Ecosystem Evolution in the North Central Rockies

152-163 Influence of Soil Chemical Variables and Altitude on the Distribution of High- alpine Plants: the Case of the Andes of Central Chile.

164-178 Climate in the Southern Sawatch Range and Elk Mountains, Colorado, U.S.A., during the Last Glacial Maximum: Inferences Using a Simple Degree Model.

179-187 Landscape Heterigeneitly of Differently Aged Soil Organic Matter Constituents at the Forest-Alpine Tundra Ecotone, Ciwot Ridge, Colorado, U.S.A.

188-197 Blowing Snow Fluxes in the Cariboo Mountains of British Columbia, Canada

198-209 Twentieth- century Changes in the Thickness and Etent of Arapaho Galcier, Front Range Colorado

210-218 Characterization of the Community of Snow Algae and Their Photochemocal Performance in situ in the Giant Mountains Czech Republic

219-226 Petal Color, Flower Temperature, and Behavior in an Alpine Annual Herb

227-235 Demographic Consequences of the Two Reproductive Modes in Poa alpina L. along a Primary Succession Gradient in the Central Alps

236-237 In Memoriam Leslie A. Viereck

238-244 Book Reviews