Effects of Reduction in Windblown Sand on the Abundance of the Fringe-Toed Lizard (Uma inornata) in the Coachella Valley, California

Copeia ◽  
1984 ◽  
Vol 1984 (2) ◽  
pp. 370 ◽  
Author(s):  
Frederick B. Turner ◽  
Donald C. Weaver ◽  
James C. Rorabaugh
Keyword(s):  
Coachella Valley ◽  
Windblown Sand ◽  
Uma Inornata

scholarly journals Sampling across 20 years (1996–2017) reveals loss of diversity and genetic connectivity in the Coachella Valley fringe-toed lizard (Uma inornata)

2019 ◽  
Author(s):  
Amy G. Vandergast ◽  
Dustin A. Wood ◽  
Mark Fisher ◽  
Cameron W. Barrows ◽  
Anna Mitelberg ◽  
...  
Keyword(s):  
Genetic Connectivity ◽  
Coachella Valley ◽  
Uma Inornata ◽  
Loss Of Diversity

scholarly journals Forty years later: monitoring and status of the endangered Coachella Valley fringe-toed lizard

2021 ◽  
pp. 243-257
Author(s):  
Cameron W. Barrows ◽  
Scott A. Heacox
Keyword(s):  
Environmental Variables ◽  
Sand Dune ◽  
Invasive Plant ◽  
Private Property ◽  
Ecosystem Processes ◽  
Coachella Valley ◽  
Management Actions ◽  
Habitat Islands ◽  
Uma Inornata ◽  
Plant Control

The Coachella Valley fringe-toed lizard, Uma inornata, was listed as endangered under the California Endangered Species Act in 1980. By that time, the lizard’s habitat was already reduced by 90%, fragmented into isolated habitat islands on private property among hundreds of landowners. Ecosystem processes that are essential for delivering sand and maintaining the lizard’s sand dune habitat were already compromised. As challenging as it was to protect its habitat under these conditions, populations of this lizard still occur across much of the area where it was found forty years ago. Annual monitoring was designed to assess the ongoing viability of these populations by quantifying the effects of potential threats and stressors and focusing adaptive management actions where they are most needed. Here we demonstrate how hypothesis-based monitoring identified specific locations where invasive plant control and sand corridor management were needed to maintain the lizard’s populations. By monitoring lizard densities within the context of environmental variables that either drive or inhibit population growth, this monitoring approach informs if, when, and where management actions are needed.

CONSERVATION GENETICS OF THE ENDANGERED COACHELLA VALLEY FRINGE-TOED LIZARD (UMA INORNATA)

Herpetologica ◽  
2007 ◽  
Vol 63 (4) ◽  
pp. 411-420 ◽  
Author(s):  
Shannon M. Hedtke ◽  
Kelly R. Zamudio ◽  
Christopher A. Phillips ◽  
Jonathan Losos ◽  
Phil Brylski
Keyword(s):  
Conservation Genetics ◽  
Coachella Valley ◽  
Uma Inornata

A new cryptic species of fringe-toed lizards from southwestern Arizona with a revised taxonomy of the Uma notata species complex (Squamata: Phrynosomatidae)

Zootaxa ◽  
2020 ◽  
Vol 4778 (1) ◽  
pp. 67-100
Author(s):  
ELIZABETH G. DERYCKE ◽  
ANDREW D. GOTTSCHO ◽  
ANDREW D. GOTTSCHO ◽  
DANIEL G. MULCAHY ◽  
KEVIN DE QUEIROZ
Keyword(s):  
Endangered Species ◽  
Cryptic Species ◽  
Species Complex ◽  
Taxonomic Status ◽  
Genetic Data ◽  
Coachella Valley ◽  
Evolutionary Distinctiveness ◽  
Taxonomic History ◽  
Windblown Sand ◽  
Molecular Dataset

Fringe-toed lizards (Uma) are among the most specialized lizards in North America, adapted to insular windblown sand habitats in the hyper-arid southwestern deserts, with allopatric distributions, subtle morphological variation, and an unstable taxonomic history. We analyzed a morphological dataset of 40 characters for 65 specimens and a molecular dataset of 2,286 bases from three mitochondrial loci for 92 individuals and interpreted these data alongside published analyses of multi-locus genetic data with the goal of revising the taxonomy of the Uma notata (Baird 1858) species complex. We confirmed that fringe-toed lizards from the Mohawk Dunes in southwestern Arizona (U. sp.) constitute a cryptic species sister to the rest of the complex that can be diagnosed with DNA barcoding and geography, so we describe and name this species Uma thurmanae sp. nov. We also confirmed the evolutionary distinctiveness of U. inornata (Cope 1895), an endangered species endemic to Coachella Valley in southern California. We designate a lectotype for the taxon U. “rufopunctata”, but we put its name in quotation marks to reflect its uncertain taxonomic status with respect to its neighboring species U. cowlesi and U. notata. 

scholarly journals Windblown Sand-Induced Degradation of Glass Panels in Curtain Walls

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 607
Author(s):  
Yuxi Zhao ◽  
Rongcheng Liu ◽  
Fan Yan ◽  
Dawei Zhang ◽  
Junjin Liu
Keyword(s):  
Visible Light ◽  
Mass Loss ◽  
Effective Area ◽  
Area Ratio ◽  
Light Transmittance ◽  
Relative Mass ◽  
Impact Time ◽  
Windblown Sand ◽  
Glass Panels ◽  
The Impact

The windblown sand-induced degradation of glass panels influences the serviceability and safety of these panels. In this study, the degradation of glass panels subject to windblown sand with different impact velocities and impact angles was studied based on a sandblasting test simulating a sandstorm. After the glass panels were degraded by windblown sand, the surface morphology of the damaged glass panels was observed using scanning electron microscopy, and three damage modes were found: a cutting mode, smash mode, and plastic deformation mode. The mass loss, visible light transmittance, and effective area ratio values of the glass samples were then measured to evaluate the effects of the windblown sand on the panels. The results indicate that, at high abrasive feed rates, the relative mass loss of the glass samples decreases initially and then remains steady with increases in impact time, whereas it increases first and then decreases with an increase in impact angle such as that for ductile materials. Both visible light transmittance and effective area ratio decrease with increases in the impact time and velocities. There exists a positive linear relationship between the visible light transmittance and effective area ratio.

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