COS 91
Environmental Gradients

Thursday, August 8, 2013: 8:00 AM-11:30 AM
L100G, Minneapolis Convention Center
8:00 AM
 Environmental tolerances, latitudinal gradients and the potential for speciation in mammals and birds
Carlos A. Botero, North Carolina State University; Roi Dor, University of Colorado at Boulder; Christy M. McCain, University of Colorado at Boulder; Rebecca J. Saffran, University of Colorado at Boulder
8:20 AM
 Bioengineer effects on understory species richness, diversity, and composition change along an environmental stress gradient
Cortney A. Watt, Saint Francis Xavier University; Ricardo A. Scrosati, Saint Francis Xavier University
8:40 AM
 Absent growth rings are rare in Northern Hemisphere forests outside the American Southwest
Scott St. George, University of Minnesota; Toby R. Ault, University Corporation for Climate Research; Max C.A. Torbenson, University of Minnesota
9:00 AM
 Biome boundaries across gradients: the sagebrush steppe-temperate forest ecotone
Daniel R. Schlaepfer, University of Wyoming; William K. Lauenroth, University of Wyoming; John B. Bradford, US Geological Survey
9:20 AM
 Adaptation of red and white fir to elevation across an ecotone
John N. Church, California Geological Survey
9:40 AM
10:10 AM Cancelled
 The relative influence of upwelling-driven ocean acidification on growth of the California mussel, Mytilus californianus, along the California Current Large Marine Ecosystem
Jeremy M. Rose, Oregon State University; Carol A. Blanchette, University of California, Santa Barbara; Eric Sanford, University of California Davis; Rachael C. Williams, University of California, Santa Cruz; Peter T. Raimondi, University of California, Santa Cruz; Bruce A. Menge, Oregon State University
9:50 AM
 Influence of drought on canopy cover and plant dieback on an elevational gradient at Big Bend National Park
Elizabeth F. Waring, Texas Tech University; Dylan W. Schwilk, Texas Tech University
10:50 AM
 Contrasting diversity-temperature relationships between the three domains of life along extreme thermal gradients
Jordan Okie, Arizona State University; Daniel R. Colman, University of New Mexico; Xiaoben Jiang, University of New Mexico; Everett Shock, Arizona State University; Jizhong Zhou, University of Oklahoma; Cristina Takacs-Vesbach, University of New Mexico