Todd E Dawson

Biographic Data

ID1572912
NAMETodd E Dawson
GIVEN NAMESTodd E
FAMILY NAMEDawson
SIGNATUREDAWSON T E
AFFILIATIONSUniversity of California, Berkeley
ORCID0000-0002-6871-3440
VERIFIEDYes
TOTAL WORKS9
TOTAL CITATIONS2
AUTHOR COUNT9
EDITOR COUNT0
FIRST PUBLICATION YEAR2009
LATEST PUBLICATION YEAR2024
H-INDEX1

  • Soil Carbon Stocks Not Linked to Aboveground Litter Input and Chemistry of Old-Growth Forest and Adjacent Prairie

    Open AccessKaris J McFarlane, Stefania Mambelli et al.ARTICLERadiocarbon2024References: 74

    The long-standing assumption that aboveground plant litter inputs have a substantial influence on soil organic carbon storage (SOC) and dynamics has been challenged by a new paradigm for SOC formation and persistence. We tested the importance of plant litter chemistry on SOC storage, distribution, composition, and age by comparing two highly contrasting ecosystems: an old-growth coast redwood ( Sequoia sempervirens ) forest, with highly aromatic …

  • Sulfur isotopes reveal agricultural changes to the modern sulfur cycle

    Open AccessAnna L Hermes, Todd E Dawson et al.ARTICLEEnvironmental Research Letters2022

    The environmental fates and consequences of intensive sulfur (S) applications to croplands are largely unknown. In this study, we used S stable isotopes to identify and trace agricultural S from field-to-watershed scales, an initial and timely step toward constraining the modern S cycle. We conducted our research within the Napa River Watershed, California, US, where vineyards receive frequent fungicidal S sprays. We measured soil and surface wat…

  • Plants as sensors

    Open AccessDavid Dralle, David N Dralle et al.ARTICLEEnvironmental Research Letters2020

    In Mediterranean-type climates, asynchronicity between energy and water availability means that ecosystems rely heavily on the water-storing capacity of the subsurface to sustain plant water use over the summer dry season. The root-zone water storage capacity ( S m a x [L]) defines the maximum volume of water that can be stored in plant accessible locations in the subsurface, but is poorly characterized and difficult to measure at large scales. H…

  • Harnessing cross-border resources to confront climate change

    Open AccessOctavio Aburto‐Oropeza, Andrew Frederick Johnson et al.ARTICLEEnvironmental Science & Policy2018References: 3

  • Functional strategies of tropical dry forest plants in relation to growth form and isotopic composition

    Open AccessLouis S Santiago, Katia Silvera et al.ARTICLEEnvironmental Research Letters2017

    Tropical dry forests (TDFs) undergo a substantial dry season in which plant species must endure several months of drought. Although TDFs support a diverse array of plant growth forms, it is not clear how they vary in mechanisms for coping with seasonal drought. We measured organic tissue stable isotopic composition of carbon (δ13C) and nitrogen (δ15N) across six plant growth forms including epiphytes, terrestrial succulents, trees, shrubs, herbs,…

  • Interactions between payments for hydrologic services, landowner decisions, and ecohydrological consequences

    Open AccessHeidi Asbjornsen, Robert H Manson et al.ARTICLEConservation Ecology2017Cited by: 2

    Asbjornsen, H., R. Manson, J. Scullion, F. Holwerda, L. E. Munoz-Villers, M. Alvarado-Barrientos, D. Geissert, T. E. Dawson, J. J. McDonnell, and L. Adrian Bruijnzeel. 2017. Interactions between payments for hydrologic services, landowner decisions, and ecohydrological consequences: synergies and disconnection in the cloud forest zone of central Veracruz, Mexico. Ecology and Society 22(2):25. https://doi.org/10.5751/ES-09144-220225

  • Regional And Watershed-Scale Coherence In the Stable-Oxygen and Carbon Isotope Ratio Time Series In Tree Rings Of Coast Redwood (Sequoia sempervirens)

    John S Roden, James A Johnstone et al.ARTICLETree-Ring Research2011

    Coast redwood (Sequoia sempervirens) ecosystems are strongly influenced by the presence of summer marine fog, and variation in fog frequency is closely linked to climate variation in the NE Pacific region. Because oxygen isotope composition (δ18O) of organic matter records distinct water sources (e.g. summertime fog vs. winter precipitation) and carbon isotopes (δ13C) are typically sensitive to humidity and water status, it then follows that inte…

  • Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability

    Open AccessJoseph M Craine, Andrew J Elmore et al.ARTICLENew Phytologist2009

    Ratios of nitrogen (N) isotopes in leaves could elucidate underlying patterns of N cycling across ecological gradients. To better understand global‐scale patterns of N cycling, we compiled data on foliar N isotope ratios (δ 15 N), foliar N concentrations, mycorrhizal type and climate for over 11 000 plants worldwide. Arbuscular mycorrhizal, ectomycorrhizal, and ericoid mycorrhizal plants were depleted in foliar δ 15 N by 2‰, 3.2‰, 5.9‰, respectiv…

  • Intra-annual variation in the stable oxygen and carbon isotope ratios of cellulose in tree rings of coast redwood (Sequoia sempervirens)

    Open AccessJohn S Roden, James A Johnstone et al.ARTICLEThe Holocene2009References: 3

    Fog is a seasonally variable hydrologic input to coast redwood ( Sequoia sempervirens, D. Don) ecosystems with a stable isotopic composition (δ 18 O, δ 2 H) that is distinct from rainfall. The intra-annual variation in tree ring cellulose δ 18 O of coast redwood was measured to determine what portion of the tree ring should be sampled to best target fog signals. Ten years of rings were subdivided into ten equal units for three trees at two sites …