Session: Arid and Semi-Arid Systems (97th ESA Annual Meeting (August 5 -- 10, 2012))

PS 81-168

Plasticity in phytolith production in Asteraceae species along a rainfall gradient in Israel
Ofir Katz, Ben-Gurion University of the Negev; Simcha Lev-Yadun, University of Haifa – Oranim; Pua Bar (Kutiel), Ben-Gurion University of the Negev

PS 81-169

Comparing avian diversity between perennial and ephemeral water sources located within a Chihuahuan Desert ecosystem
Geoffrey Hugh Wiseman, University of Texas at El Paso; Jerry Johnson, University of Texas at El Paso; Vanessa L. Lougheed, University of Texas at El Paso

PS 81-170

Islands of fertility: Are they an artifact of grazing?
Ginger R.H. Allington, Saint Louis University; Thomas J. Valone, Saint Louis University

PS 81-171

Nurse effect in the clonal establishment of Sedum oxypetalum in disturbed environments
Patricia Santillán-Carvantes, Facultad de Ciencias, Universidad Nacional Autónoma de México; Irene Pisanty, Facultad de Ciencias, Universidad Nacional Autónoma de México

PS 81-172

Response of riparian areas of the shortgrass steppe to release from cattle grazing using exclosures: Comparison at different spatial and temporal scales
Michael H. Schiebout, Union University; Scott Franklin, University of Northern Colorado

PS 81-173

Land degradation in a Mexican tropical dryland: An assessment using soil, vegetation, and human disturbance indicators
Hector Godinez-Alvarez, Universidad Nacional Autonoma de Mexico; Itzel Cabral, Universidad Nacional Autonoma de Mexico; Mayra Hernandez, Universidad Nacional Autonoma de Mexico; Rafael Lira, Universidad Nacional Autonoma de Mexico; Francisco Lopez, Universidad Nacional Autonoma de Mexico; Daniel Muñoz, Universidad Nacional Autonoma de Mexico; Leticia Rios-Casanova, Universidad Nacional Autonoma de Mexico

PS 81-174

The effects of UV radiation, litter chemistry, and drought on desert litter decomposition
Brenda C. Nieto, New Mexico State University; Hanna Lee, National Center for Atmospheric Research; Daniel B. Hewins, New Mexico State University; Paul W. Barnes, Loyola University; Nathan G. McDowell, Los Alamos National Laboratory; William T. Pockman, University of New Mexico; Thom Rahn, Los Alamos National Laboratory; Heather L. Throop, New Mexico State University

PS 81-175

Desert seed consumers as predators and dispersers of a non-native invasive plant
Alexis A. Suazo, University of Idaho; Anna San, University of Nevada Las Vegas; Ryan K. Tsutsui, University of Nevada Las Vegas; Scott R. Abella, National Park Service

PS 81-176

Recovery of Larrea tridentata following extreme cold across a shrub-grassland ecotone
Heather E. Tran, Oak Ridge National Laboratory; William T. Pockman, University of New Mexico; Laura M. Ladwig, University of New Mexico

PS 81-177

Alternative pathways for development of meso-scale wildlife hotspots in an East African savanna
Kari E. Veblen, Utah State University

PS 81-178

Sinkhole formation, dynamics, and colonization in the Churince System, a disturbed desert wetland in Cuatrociénegas, Coahuila, Mexico
Irene Pisanty, Facultad de Ciencias, Universidad Nacional Autónoma de México; Cristina Pérez y Sosa, Facultad de Ciencias, Universidad Nacional Autónoma de México; Mariana Ródríguez-Sánchez, Facultad de Ciencias, Universidad Nacional Autónoma de México; María C. Mandujano, Instituto de Ecología. Universidad Nacional Atónoma de México; Cynthia Peralta, Facultad de Ciencias, Universidad Nacional Autónoma de México

PS 81 - Arid and Semi-Arid Systems