Robert A. Stehn Karen L. Kincheloe 1991 <p><span>Tundra vegetation and environmental variables were sampled on the Yukon–Kuskokwim delta in western Alaska. On transects extending from intertidal mudflat to upland tundra, we estimated cover by vascular plant species, soil moisture, salinity, relative elevation, depth to permafrost, and distance upriver from the coast. Two-way indicator species analysis (</span><span class="smallcaps">TWINSPAN</span><span>) classified 21 communities. Ordination by detrended correspondence analysis (</span><span class="smallcaps">DECORANA</span><span>) revealed a gradient correlated with the combination of elevation, permafrost depth, and salinity along the first axis for both upriver and downriver transects.</span></p> application/pdf 10.1139/b91-205 en NRC Research Press Vegetation patterns and environmental gradients in coastal meadows on the Yukon-Kuskokwim Delta, Alaska article