A5083087042- Hydrology and Watershed Management Studies
- Land Use and Ecosystem Services
- Remote Sensing in Agriculture
- Ecology and Vegetation Dynamics Studies
- Rangeland and Wildlife Management
- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Plant Water Relations and Carbon Dynamics
- Wildlife-Road Interactions and Conservation
- Botany, Ecology, and Taxonomy Studies
- Archaeology and Natural History
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Water resources management and optimization
- Remote Sensing and LiDAR Applications
- Flood Risk Assessment and Management
Western Geographic Science Center
2016-2022
United States Geological Survey
2018-2022
Arizona Geological Survey
2016-2021
United States Department of the Interior
2018
Watershed restoration efforts seek to rejuvenate vegetation, biological diversity, and land productivity at Cienega San Bernardino, an important wetland in southeastern Arizona northern Sonora, Mexico. Rock detention earthen berm structures were built on the Bernardino over course of four decades, beginning 1984 continuing present. Previous research findings show that supports even increases vegetation health despite ongoing drought conditions this arid watershed. However, extent impacts is...
Abstract “Leaky weirs” are rock structures installed in dryland streams, which anchored into exposed bedrock, loosely cemented, and designed to allow water slowly pass through. They being tested at a ranch southeastern Arizona, USA, restore conserve the historic range desert wetlands. Data collected assess how leaky weirs impact surface water, subsurface groundwater recharge—including stream discharge, timing, depth of infiltration, elevations. Three adjacent watersheds, two with outlets...
This research considers the applicability of different vegetation indices at 30 m resolution for mapping and monitoring desert wetland (cienega) health spatial extent through time Cienega Creek in southeastern Arizona, USA. Multiple stressors including risk decadal-scale drought, effects current predicted global warming, continued anthropogenic pressures threaten aquatic habitats southwest cienegas are recognized as important sites conservation restoration efforts. However, present a...
Urban and exurban expansion results in habitat biodiversity loss globally. We hypothesize that a coupled-model approach could connect urban planning for future cities with landscape ecology to consider wildland connectivity. Our work combines growth simulations models of wildlife corridors examine how species will be impacted by development test this hypothesis. leverage land use change model (SLEUTH) structural functional landscape-connectivity modeling techniques ascertain the spatial...
This paper describes coupling field experiments with surface and groundwater modeling to investigate rangelands of SE Arizona, USA using erosion-control structures augment shallow deep aquifer recharge. We collected data describe the physical hydrological properties before after gabions (caged riprap) were installed in an ephemeral channel. The modular finite-difference flow model is applied simulate amount increase needed raise levels. used average infiltration measured projected on site,...
Rock detention structures (RDS) are used in restoration of riparian areas around the world. The purpose this study was to analyze effect RDS installation on vegetation terms species abundance and composition. We present results from 5 years annual sampling which focused short term non-woody response within channel at 3 sites across southeastern Arizona. examined potential ways that can preserve native species, encourage wetland and/or introduce nonnative using a Control-Impact-Paired-Series...
This paper describes how subdivision and development of rangelands within a remote celebrated semi-arid watershed near the US–Mexico border might affect multiple ecohydrological services provided, such as recharge aquifer, water sediment yield, quality, flow rates downstream cultural natural resources. Specifically, we apply an uncalibrated model land-change forecasting scenario to consider potential effects converting housing developments document changes in hydrological ecosystem services....