KMap
I'm a Biogeographer, which means my science sits at that exciting nexus of understanding how external forces (like environmental and human factors) and internal characteristics (like leaf biochemistry and plant functional type) act as determinants of where species can live and thrive.

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Courses
  • PSPEICW
    Plants under Stress: Plant-Environment Interactions in a Changing World

  • ODB
    Our Diverse Biosphere

  • EIS
    Explorations in Integrated Science

  • B
    Biogeography

Grants
  • Funding agency logo
    Agrivoltaics in Arid Environments

    Principal Investigator (PI)

    2022

    $300.0K
    Active
  • Funding agency logo
    Integrating solar with agriculture to bolster resilience and build biodiversity: The state of agriculture + photovoltaics in Arizona

    Principal Investigator (PI)

    2022

    $33.6K
    Active
  • Funding agency logo
    Collaborative Research: NSF INCLUDES Alliance: Broadening Career Pathways in Food, Energy, and Water Systems with and within Native American Communities (Native FEWS Alliance)

    Co-Investigator (COI)

    2021

    $1.4M
    Active
  • Funding agency logo
    Collaborative Research: GCR: Growing a New Science of Landscape Terraformation: The Convergence of Rock, Fluids, and Life to form Complex Ecosystems Across Scales

    Co-Investigator (COI)

    2021

    $1.2M
    Active
  • Funding agency logo
    Designing Agrivoltaics For Sustainably Intensifying Food And Energy Production

    Principal Investigator (PI)

    2021

    $1.0M
    Active
  • Funding agency logo
    RET Site: Collaborative Research: Sonoran Photovoltaics Laboratory: Energizing the STEM Pipeline through Citizen Science

    Co-Investigator (COI)

    2021

    $207.0K
    Active
  • Funding agency logo
    Solar Sharing: Assessing the Potential for Co-Locating Agriculture and Renewable Energy Production in Drylands

    Principal Investigator (PI)

    2020

    $299.9K
    Active
  • Funding agency logo
    Quantifying Irrigation Water Savings from Multiple Agrivoltaics Configurations

    Principal Investigator (PI)

    2021

    $40.7K
  • Funding agency logo
    InSPIRE 2.0: Solar and Agriculture Co-Location in Arid Environments

    Principal Investigator (PI)

    2019

    $90.0K
  • Funding agency logo
    Meeting Sunshot Cost and Deployment Targets Through Innovative Site Preparation and Impact Reductions on the Environment (INSPIRE)

    Principal Investigator (PI)

    2017

    $30.0K
News
  • Cascading Colorado River cuts bring focus to future of Arizona agriculture

    2022

  • USDA awards over $4.7M to support 'climate-smart' food production

    2022

  • UArizona Partners on $10M USDA Grant to Expand Research on Growing Crops Under Solar Panels

    2021

  • Harvesting Sunlight and Plant Power on UArizona's Greenest Building

    2021

  • Researchers Propose Climate-Smart Desert Food Production Model for Land and Human Health

    2020

  • Agrivoltaics Proves Mutually Beneficial Across Food, Water, Energy Nexus

    2019

  • UA Agrivoltaics Project Named as World Changing Ideas Finalist

    2018

  • UA Researchers Plant Seeds to Make Renewable Energy More Efficient

    2017

  • Network Makes Environmental Change Tangible

    2016

  • RISE Symposium to Highlight Range Research

    2016

  • Science Communication on Exhibit at UA Museum

    2016

  • Mesquite Trees Displacing Southwestern Grasslands

    2012

Publications (96)
Recent
  • A Microbial‐Explicit Soil Organic Carbon Decomposition Model (MESDM): Development and Testing at a Semiarid Grassland Site

    2022

  • Agrivoltaic Modules Optimizing Light for Crops in Dryland Regions

    2022

  • Canopy Temperature Is Regulated by Ecosystem Structural Traits and Captures the Ecohydrologic Dynamics of a Semiarid Mixed Conifer Forest Site

    2022

  • The 5 Cs of Agrivoltaic Success Factors in the United States: Lessons From the InSPIRE Research Study

    2022

  • Satellite solar-induced chlorophyll fluorescence and near-infrared reflectance capture complementary aspects of dryland vegetation productivity dynamics

    2022

  • Water Availability Impacts on Evapotranspiration Partitioning

    2021

  • Convergent Hydraulic Redistribution and Groundwater Access Supported Facilitative Dependency Between Trees and Grasses in a Semi‐Arid Environment

    2021

  • Co-locating Food and Energy Production to Create Sustainable Agricultural Systems

    2021

  • Soil microbial composition and carbon mineralization are associated with vegetation type and temperature regime in mesocosms of a semiarid ecosystem

    2021

  • Biological invasions and climate change amplify each other rsquo;s effects on dryland degradation

    2021

  • Hydraulic redistribution buffers climate variability and regulates grass‐tree interactions in a semiarid riparian savanna

    2021

  • An improved practical approach for estimating catchment‐scale response functions through wavelet analysis

    2021

  • Topography influences species-specific patterns of seasonal primary productivity in a semiarid montane forest

    2020

  • The Photochemical Reflectance Index (PRI) Captures the Ecohydrologic Sensitivity of a Semiarid Mixed Conifer Forest

    2020

  • Vegetation source water identification using isotopic and hydrometric observations from a subhumid mountain catchment

    2020

  • An Aridamerican model for agriculture in a hotter, water scarce world

    2020

  • Highly sampled measurements in a controlled atmosphere at the Biosphere 2 Landscape Evolution Observatory

    2020

  • Montane forest productivity across a semiarid climatic gradient

    2020

  • Corrigendum to “Ecosystem carbon and water cycling from a sky island montane forest”, Agricultural and Forest Meteorology, Volume 281, 15 February 2020, 107835

    2020

  • Biotic soil-plant interaction processes explain most of hysteric soil CO2 efflux response to temperature in cross-factorial mesocosm experiment.

    2019

  • Vegetation source water identification using isotopic and hydrometric observations from a sub-humid mountain Catchment

    2019

  • Soil Fluid Biogeochemical Response to Climatic Events

    2019

  • Ecosystem hydrologic and metabolic flashiness are shaped by plant community traits and precipitation

    2019

  • Bloom and Bust: ecological consequences of precipitation variability in aridlands

    2019

  • Remote sensing of dryland ecosystem structure and function: Progress, challenges, and opportunities

    2019

  • Hydrologic functioning of the deep critical zone and contributions to streamflow in a high-elevation catchment: Testing of multiple conceptual models

    2019

  • Agrivoltaics provide mutual benefits across the food-energy-water nexus in drylands

    2019

  • Phreatophytes in the Anthropocene: State and Transition Models for Climate Change and Land Use Pressures

    2018

  • A considerable fraction of soil-respired CO2 is not emitted directly to the atmosphere.

    2018

  • Why Do Large‐Scale Land Surface Models Produce a Low Ratio of Transpiration to Evapotranspiration?

    2018

  • Critical Zone Science in the Anthropocene: Opportunities for Biogeographic and Ecological Theory and Praxis to Drive Earth Science Integration

    2018

  • Agrivoltaics: A novel approach to co-locating food production and solar renewable energy to maximize food production, water savings, and energy generation

    2018

  • Remote sensing of dryland ecosystem structure and function: Progress, challenges and opportunities

    2018

  • Environmental and vegetative controls on soil CO2 efflux in three semiarid ecosystems

    2018

  • Quantification of uncertainties in conifer sap flow measured with the thermal dissipation method

    2018

  • Agrivoltaics in drylands: Co-location has food, water, and renewable energy benefits

    2018

  • Bayesian Inference and Predictive Performance of Soil Respiration Models in the Presence of Model Discrepancy

    2018

  • Which way do you lean? Using slope aspect variations to understand Critical Zone processes and feedbacks

    2018

  • Relative model score: a scoring rule for evaluating ensemble simulations with application to microbial soil respiration modeling

    2018

  • Comparing ecosystem and soil respiration: Review and key challenges of tower-based and soil measurements

    2018

  • Impact of Hydraulic Redistribution on Multispecies Vegetation Water Use in a Semiarid Savanna Ecosystem: An Experimental and Modeling Synthesis

    2018

  • Beyond greenness: Detecting temporal changes in photosynthetic capacity with hyperspectral reflectance data

    2017

  • Dryland Agrivoltaics: A novel approach to collocating food production and solar renewable energy to maximize food production, water savings, and energy generation

    2017

  • Impacts of hydraulic redistribution on grass-tree competition vs facilitation in a semi-arid savanna

    2017

  • Nutrient uptake by plants grown in basaltic soil impacted by climate change

    2017

  • Predicting Tree Mortality Die-off Events Associated with Hotter Drought and Assessing Their Global Consequences via Ecoclimate Teleconnections. (Invited)

    2017

  • Hydraulic redistribution as a driver of tree and grass competition versus facilitation in a semiarid savanna

    2017

  • Rapid CO2 drawdown during basalt weathering as affected by climate change

    2017

  • A multi-species synthesis of physiological mechanisms in drought-induced tree mortality

    2017

  • Prototype campaign assessment of disturbance-induced tree loss effects on surface properties for atmospheric modeling

    2017

  • Photosynthetic phenological variation may promote coexistence among co-dominant tree species in a Madrean sky island mixed conifer forest

    2017

  • Dryland Agrivoltaics: A Novel Ecosystems Approach to the Food-Water-Energy Nexus

    2017

  • Temperature response surfaces for mortality risk of tree species with future drought

    2017

  • Fire severity and regeneration strategy influence shrub patch size and structure following disturbance

    2017

  • Effect of elevated CO2 and temperature on weathering of basalt without and in the presence of higher plants

    2017

  • Hydrologic functioning of the deep Critical Zone and contributions to streamflow in a high elevation catchment: testing of multiple conceptual models

    2017

  • Improving the accuracy of the gradient method for determining soil carbon dioxide efflux

    2017

  • CO2 diffusion into pore spaces limits weathering rate of an experimental basalt landscape

    2016

  • The Photovoltaic Heat Island Effect: Larger solar power plants increase local temperatures

    2016

  • Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

    2016

  • Rapid soil CO2 drawdown during incipient weathering of a granular basaltic landscape.

    2015

  • The Landscape Evolution Observatory: A large-scale controllable infrastructure to study coupled Earth-surface processes

    2015

  • Quantifying ecological memory in plant and ecosystem processes

    2015

  • Climatic, landscape, and edaphic controls on soil carbon efflux in seasonally snow covered forest ecosystems

    2015

  • Ecohydrology and the Critical Zone: Processes and Patterns Across Scales

    2015

  • The carbon balance pivot point of southwestern US semiarid ecosystems: Insights from the 21st century drought

    2015

  • Sensitivity of regional evapotranspiration partitioning to variation in woody plant cover: insights from experimental dryland tree mosaics

    2015

  • Solar Heat Island: Larger solar power plants increase local temperatures

    2015

  • Critical zone services: Expanding context, constraints, and curency beyond ecosystem services.

    2015

  • High water-use efficiency and growth contribute to success of non-native Erodium cicutarium in a Sonoran Desert winter annual community

    2014

  • When vegetation change alters ecosystem water availability

    2014

  • Water use efficiency of annual-dominated and bunchgrass-dominated savanna intercanopy space

    2014

  • Photosynthetic Response of Poplars (Populus) to Climatic Stressors: Investigating Isoprene's Role in Increasing Tolerance to Temperature and Atmospheric Water Stress in Arizona

    2014

  • Metabolic acceleration quantifies biological systems' ability to up-regulate metabolism in response to episodic resource availability

    2014

  • A perspective on areas of emphasis for critical zone services

    2014

  • Critical Zone Services: Expanding Context, Constraints, and Currency beyond Ecosystem Services

    2014

  • Assessing five evolving microbial enzyme models against field measurements from a semiarid savannah-What are the mechanisms of soil respiration pulses?

    2014

  • Quantifying the timescales over which exogenous and endogenous conditions affect soil respiration

    2014

  • Landscape and environmental controls over leaf and ecosystem carbon dioxide fluxes under woody plant expansion

    2013

  • Nocturnal soil CO2 uptake and its relationship to subsurface soil and ecosystem carbon fluxes in a Chihuahuan Desert shrubland

    2013

  • Nonstructural leaf carbohydrate dynamics of Pinus edulis during drought-induced tree mortality reveal role for carbon metabolism in mortality mechanism

    2013

  • Photosynthetic temperature responses of co-occurring desert winter annuals with contrasting resource-use efficiencies and different temporal patterns of resource utilization may allow for species coexistence

    2013

  • Understanding past, contemporary, and future dynamics of plants, populations, and communities using Sonoran Desert winter annuals

    2013

  • Influence of snow cover duration on soil evaporation and respiration efflux in mixed-conifer ecosystems

    2013

  • Consequences of cool-season drought-induced plant mortality to Chihuahuan Desert grassland ecosystem and soil respiration dynamics

    2013

  • Antecedent conditions influence soil respiration differences in shrub and grass patches

    2013

  • Temperature and precipitation controls over leaf- and ecosystem-level CO2 flux along a woody plant encroachment gradient

    2012

  • Differential daytime and night-time stomatal behavior in plants from North American deserts

    2012

  • Endogenous circadian regulation of carbon dioxide exchange in terrestrial ecosystems

    2012

  • Green leaf volatiles and oxygenated metabolite emission bursts from mesquite branches following light-dark transitions

    2012

  • Organization of complexity in water limited ecohydrology

    2012

  • Herbivory of wild Manduca sexta causes fast down-regulation of photosynthetic efficiency in Datura wrightii: an early signaling cascade visualized by chlorophyll fluorescence

    2012

  • Shrub encroachment alters sensitivity of soil respiration to temperature and moisture

    2012

  • Cool-season whole-plant gas exchange of exotic and native semiarid bunchgrasses

    2012

  • The effect of elevated atmospheric CO2 and drought on sources and sinks of isoprene in a temperate and tropical rainforest mesocosm

    2005

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