Bio

Current Role at Stanford


Grant Development Officer

Honors & Awards


  • Climate and Global Change Postdoctoral Fellowship, National Oceanic and Atmospheric Administration (2014)
  • Outstanding Graduate Student Award, University of California, Irvine (2014)
  • Outstanding Student Paper Award, American Geophysical Union (2011)
  • Graduate Research Fellowship, Environmental Protection Agency (2010)
  • Graduate Research Fellowship, National Science Foundation (2010)
  • Graduate Research Fellowship, Department of Energy (2010)

Education & Certifications


  • PhD, University of California Irvine, Ecology and Evolutionary Biology (2014)
  • BS, Gonzaga University, Biology (2009)

Professional

Professional Affiliations and Activities


  • Member, National Organization of Research Development Professionals (2015 - Present)

Publications

All Publications


  • Decreases in soil moisture and organic matter quality suppress microbial decomposition following a boreal forest fire SOIL BIOLOGY & BIOCHEMISTRY Holden, S. R., Berhe, A. A., Treseder, K. K. 2015; 87: 1-9
  • Quantifying fire-wide carbon emissions in interior Alaska using field measurements and Landsat imagery JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES Rogers, B. M., Veraverbeke, S., Azzari, G., Czimczik, C. I., Holden, S. R., Mouteva, G. O., Sedano, F., Treseder, K. K., Randerson, J. T. 2014; 119 (8): 1608-1629
  • Factors affecting host range in a generalist seed pathogen of semi-arid shrublands PLANT ECOLOGY Beckstead, J., Meyer, S. E., Reinhart, K. O., Bergen, K. M., Holden, S. R., Boekweg, H. F. 2014; 215 (4): 427-440
  • A meta-analysis of soil microbial biomass responses to forest disturbances FRONTIERS IN MICROBIOLOGY Holden, S. R., Treseder, K. K. 2013; 4

    Abstract

    Climate warming is likely to increase the frequency and severity of forest disturbances, with uncertain consequences for soil microbial communities and their contribution to ecosystem C dynamics. To address this uncertainty, we conducted a meta-analysis of 139 published soil microbial responses to forest disturbances. These disturbances included abiotic (fire, harvesting, storm) and biotic (insect, pathogen) disturbances. We hypothesized that soil microbial biomass would decline following forest disturbances, but that abiotic disturbances would elicit greater reductions in microbial biomass than biotic disturbances. In support of this hypothesis, across all published studies, disturbances reduced soil microbial biomass by an average of 29.4%. However, microbial responses differed between abiotic and biotic disturbances. Microbial responses were significantly negative following fires, harvest, and storms (48.7, 19.1, and 41.7% reductions in microbial biomass, respectively). In contrast, changes in soil microbial biomass following insect infestation and pathogen-induced tree mortality were non-significant, although biotic disturbances were poorly represented in the literature. When measured separately, fungal and bacterial responses to disturbances mirrored the response of the microbial community as a whole. Changes in microbial abundance following disturbance were significantly positively correlated with changes in microbial respiration. We propose that the differential effect of abiotic and biotic disturbances on microbial biomass may be attributable to differences in soil disruption and organic C removal from forests among disturbance types. Altogether, these results suggest that abiotic forest disturbances may significantly decrease soil microbial abundance, with corresponding consequences for microbial respiration. Further studies are needed on the effect of biotic disturbances on forest soil microbial communities and soil C dynamics.

    View details for DOI 10.3389/fmicb.2013.00163

    View details for Web of Science ID 000331176300001

    View details for PubMedID 23801985

  • Fungal Carbon Sequestration SCIENCE Treseder, K. K., Holden, S. R. 2013; 339 (6127): 1528-1529

    View details for Web of Science ID 000316731600026

    View details for PubMedID 23539585

  • Changes in Soil Fungal Communities, Extracellular Enzyme Activities, and Litter Decomposition Across a Fire Chronosequence in Alaskan Boreal Forests ECOSYSTEMS Holden, S. R., Gutierrez, A., Treseder, K. K. 2013; 16 (1): 34-46
  • The effect of fire on microbial biomass: a meta-analysis of field studies BIOGEOCHEMISTRY Dooley, S. R., Treseder, K. K. 2012; 109 (1-3): 49-61
  • Evidence for Different Contributions of Archaea and Bacteria to the Ammonia-Oxidizing Potential of Diverse Oregon Soils APPLIED AND ENVIRONMENTAL MICROBIOLOGY Taylor, A. E., Zeglin, L. H., Dooley, S., Myrold, D. D., Bottomley, P. J. 2010; 76 (23): 7691-7698

    Abstract

    A method was developed to determine the contributions of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) to the nitrification potentials (NPs) of soils taken from forest, pasture, cropped, and fallowed (19 years) lands. Soil slurries were exposed to acetylene to irreversibly inactivate ammonia monooxygenase, and upon the removal of acetylene, the recovery of nitrification potential (RNP) was monitored in the presence and absence of bacterial or eukaryotic protein synthesis inhibitors. For unknown reasons, and despite measureable NPs, RNP did not occur consistently in forest soil samples; however, pasture, cropped, and fallowed soil RNPs commenced after lags that ranged from 12 to 30 h after acetylene removal. Cropped soil RNP was completely prevented by the bacterial protein synthesis inhibitor kanamycin (800 μg/ml), whereas a combination of kanamycin plus gentamicin (800 μg/ml each) only partially prevented the RNP (60%) of fallowed soils. Pasture soil RNP was completely insensitive to either kanamycin, gentamicin, or a combination of the two. Unlike cropped soil, pasture and fallowed soil RNPs occurred at both 30°C and 40°C and without supplemental NH(4)(+) (≤ 10 μM NH(4)(+) in solution), and pasture soil RNP demonstrated ∼ 50% insensitivity to 100 μM allyl thiourea (ATU). In addition, fallowed and pasture soil RNPs were insensitive to the fungal inhibitors nystatin and azoxystrobin. This combination of properties suggests that neither fungi nor AOB contributed to pasture soil RNP and that AOA were responsible for the RNP of the pasture soils. Both AOA and AOB may contribute to RNP in fallowed soil, while RNP in cropped soils was dominated by AOB.

    View details for DOI 10.1128/AEM.01324-10

    View details for Web of Science ID 000284310500003

    View details for PubMedID 20889792

  • Characterizing the interaction between a fungal seed pathogen and a deleterious rhizobacterium for biological control of cheatgrass BIOLOGICAL CONTROL Dooley, S. R., Beckstead, J. 2010; 53 (2): 197-203