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EDUCATION
Ph.D. 2012; University of Arizona Soil, Water and Environmental Science
M.S. 1988; University of Arizona Soil and Water Science
B.A. 1980; Middlebury College Biology Show Less
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Grants
- Exposures, Health Impacts, and Risk for Mine Waste Contamination
Multiple Principal Investigator (MPI)
2020
$8.9M
Active - Center for Environmentally Sustainable Mining (CESM) Membership Agreement
Principal Investigator (PI)
2019
$400.0K
Active - Arizona Abandoned Mine Lands: A cooperative Approach to Assessment
Co-Investigator (COI)
2022
$191.8K
- Center for Environmentally Sustainable Mining (CESM) Membership Agreement
Principal Investigator (PI)
2020
$40.0K
- Risk and Remediation of Metal-Mining Wastes
Multiple Principal Investigator (MPI)
2017
$5.0M
- Hazardous Waste Risk and Remediation in the US Southwest
Co-Investigator (COI)
2015
$3.0M
- A Collaborative Industry-University Research Initiative on Revegetation of Mining Wastes - ASARCO
Co-Investigator (COI)
2014
$140.0K
- Transformative Behavior of Energy, Water and Carbon in the Critical Zone II: Interactions Between Long- and Short-Term Processes That Control Delivery of Critical Zone Services
Co-Investigator (COI)
2013
$6.5M
- A Collaborative Industry-University Research Initiative on Revegetation of Mining Wastes
Co-Investigator (COI)
2013
$170.3K
- A Collaborative Industry-University Research Initiative on Revegetation of Mining Wastes
Co-Investigator (COI)
2013
$170.3K
News
- UArizona Postdoc's 50-Mile Run for Indigenous Scientists Featured in Patagonia Film
2021
- Vanishing Water and Shifting Climate
2010
Publications (73)
Recent
- Soil microbial community and abiotic soil properties influence Zn and Cd hyperaccumulation differently in Arabidopsis halleri
2022
- Progressive belowground soil development associated with sustainable plant establishment during copper mine waste revegetation
2022
- Contrasting community assembly forces drive microbial structural and potential functional responses to precipitation in an incipient soil system
2021
- Contrasting Community Assembly Forces Drive Microbial Structural and Potential Functional Responses to Precipitation in an Incipient Soil System.
2021
- Impact of Hydroseeding Season and AMF Inoculation on Belowground Fertility Indicators during Copper Mine Revegetation
2021
- Life-history strategies of soil microbial communities in an arid ecosystem
2021
- Effects of Long-Term Stockpiling on Soil Quality and Potential for Mine Site Reclamation in Semi-Arid Regions
2021
- Soil microbial community and abiotic soil properties influence Zn and Cd hyperaccumulation differently in Arabidopsis helleri.
2021
- Arid Ecosystem Vegetation Canopy-Gap Dichotomy: Influence on Soil Microbial Composition and Nutrient Cycling Functional Potential
2020
- Differences in Number of Tiny Things in Dry Lands Under Trees and Open Spaces
2020
- Grand Challenges of Environmentally Sustainable Mine Closure
2020
- Life history strategies of soil microbial communities is an arid ecosystem
2020
- Soil Microbiome Dynamics during Revegetation of Pyritic Mine Tailings: Understanding Microbial Bioindicators of Soil Acidification.
2019
- Soil microbiome dynamics during pyritic mine tailing phytostabilization: understanding microbial bioindicators of soil acidification
2019
- Linking Microbial Phylogenetics and Genetics to N-Cycling Functional Potential in Arid Soils.
2019
- Structural and Functional Response of Microbial Community in an Oligotrophic Basalt Soil System to Shifts in Rainfall Regimes.
2019
- Nitrogen Dynamics As a Biogeochemical Indicator of Revegetation Progress for Mine Waste Rock.
2019
- Microbial Ecology of Mine Waste Reclamation and Ecosystem Regeneration Oral
2019
- Biogeophysical Soil Constituents Associated with Revegetation Success of Reclaimed Mine Tailings in Southern Arizona
2019
- Biogeochemical Factors Affecting Phosphorus Availability During Revegetation of Mine Waste Rock Slopes
2019
- Microbial and Fungal Bio-Indicators of Degraded Soil Development on Reclaimed Mine Tailings in Southern Arizona.
2019
- Assessing microbial community patterns during incipient soil formation from basalt
2019
- Effect of Re-Acidification on Buffalo Grass Rhizosphere and Bulk Microbial Communities during Phytostabilization of Metalliferous Mine Tailings.
2019
- Treatment impacts on temporal microbial community dynamics during phytostabilization of acid-generating mine tailings in semiarid regions
2018
- Plants from the abandoned Nacozari mine tailings: evaluation of their phytostabilization potential
2017
- Symposium--Marginal Lands: Biotic Forces Impacting Ecosystem Resilience
2017
- Bacterial Rhizoplane Colonization Patterns of Buchloe dactyloides Growing in Metalliferous Mine Tailings Reflect Plant Status and Biogeochemical Conditions
2017
- Heterogeneity of Microbial Community Dynamics in Incipient Soils.
2017
- Increasing Aridity Impacts the Network Cohesion of the Arid Soil Microbiome.
2017
- Significant Impacts of Increasing Aridity on the Arid Soil Microbiome
2017
- Advancing understanding of hydrological and biogeochemical interactions in evolving landscapes through controlled experimentation at the landscape evolution observatory
2017
- Innate immunity and asthma risk in Amish and Hutterite farm children
2016
- Soil lysimeter excavation for coupled hydrological, geochemical, and microbiological investigations
2016
- Strategies Influencing Spatial Heterogeneity of Microbial Life in a Soil Lysimeter
2016
- Microbial Life of Cave Systems
2015
- Microbial Diversity and Metal Speciation Changes in Mine Tailings Following Compost-Assisted Direct Planting: A Four-Year Superfund Site Field Study
2015
- 5. Bacterial and Archaeal Diversity on Cave Speleothem and Rock Surfaces: A Carbonate Cave Case Study from Kartchner Caverns
2015
- Seismic origin of the Atacama Desert boulder fields
2015
- Abundance and Activity of 16S rRNA, AmoA and NifH Bacterial Genes During Assisted Phytostabilization of Mine Tailings
2015
- Extreme environments
2015
- Making a living while starving in the dark: metagenomic insights into the energy dynamics of a carbonate cave
2014
- Environmental factors influencing the structural dynamics of soil microbial communities during assisted phytostabilization of acid-generating mine tailings: a mesocosm experiment
2014
- Analysis of artifacts suggests DGGE should not be used for quantitative diversity analysis
2013
- Profiling Bacterial Diversity and Taxonomic Composition on Speleothem Surfaces in Kartchner Caverns, AZ
2013
- Life at the hyperarid margin: novel bacterial diversity in arid soils of the Atacama Desert, Chile
2012
- Bacterial diversity of the Atacama Desert, Chile: The challenges of characterizing the community dynamics of extreme oligotrophic ecosystems
2012
- Factors influencing observed variations in the structure of bacterial communities on calcite formations in Kartchner Caverns, AZ, USA
2012
- Bacterial and archaeal community structure of two adjacent calcite speleothems in Kartchner Caverns, Arizona, USA
2011
- Proteomics analyses of the opportunistic pathogen Burkholderia vietnamiensis using protein fractionations and mass spectrometry
2011
- The bacterial community in household dust: environmental determinants and impact on childhood asthma
2010
- Cadmium effects on transcriptional expression of rhlB/rhlC genes and congener distribution of monorhamnolipid and dirhamnolipid in Pseudomonas aeruginosa IGB83
2010
- Environmental determinants of and impact on childhood asthma by the bacterial community in household dust
2010
- Bacterial and archaeal diversity in Kartchner Caverns, a carbonate cave in southwestern USA
2009
- Intra-and inter-speleothem variability of bacterial communities in Kartchner Caverns
2009
- Hyperarid extremophiles: A comparison of bacterial communities from distinct locations in the core of the Atacama Desert
2009
- Bacterial community characterization of an abandoned semi-arid lead-zinc mine tailings site
2008
- Characterization of a bacterial community in an abandoned semiarid lead-zinc mine tailing site
2008
- Culturable microbial diversity and the impact of tourism in Kartchner Caverns, Arizona
2007
- Bacterial community structure in the hyperarid core of the Atacama Desert, Chile
2006
- BACTERIAL COMMUNITY STRUCTURE OF SOILS OF A HYPER-ARID REGION OF THE ATACAMA DESERT, CHILE
2006
- Identifications of low level virulence factors in protein fractions of Burkholderia cepacia using Mass Spectrometric techniques
2006
- Microbial life in the Atacama Desert
2004
- Characterization of lead removal from contaminated soils by nontoxic soil‐washing agents
2003
- Biological techniques for measuring organic and metal contaminants in environmental samples
2001
- Remediation of metal-contaminated soil and sludge using biosurfactant technology
2001
- Factors Influencing Expression ofluxCDABE and nah Genes in Pseudomonas putida RB1353(NAH7, pUTK9) in Dynamic Systems
1999
- Plasmid diversity within a 2, 4‐dichlorophenoxyacetic acid‐degrading variovorax paradoxus population isolated from a contaminated soil
1996
- Gene transfer of Alcaligenes eutrophus JMP134 plasmid pJP4 to indigenous soil recipients
1996
- QUANTIFICATION OF INTRODUCED MICROORGANISMS IN NONSTERILE SOIL BY DOUBLE POLYMERASE CHAIN REACTION
1995
- ENHANCEMENT OF 2 4-DICHLOROPHENOXYACETATE 2 4-D BIODEGRADATION IN SOIL BY GENE TRANSFER OF PLASMID PJP4 TO THE INDIGENOUS MICROFLORA
1995
- Frequency of horizontal gene transfer of a large catabolic plasmid (pJP4) in soil
1994
- Polymerase chain reaction and gene probe detection of the 2, 4-dichlorophenoxyacetic acid degradation plasmid, pJP4
1992
- Soil respiration as an index of soil aeration
1990