Výsledky vyhľadávania - "Barnard, David M"

Earlier snowmelt reduces atmospheric carbon uptake in midlatitude subalpine forests Autor Winchell, Taylor S., Barnard, David M., Monson, Russell K., Burns, Sean P., Molotch, Noah P.

“…Previous work demonstrates conflicting evidence regarding the influence of snowmelt timing on forest net ecosystem exchange (NEE). Based on 15 years of eddy…”
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Small-scale water deficits after wildfires create long-lasting ecological impacts Autor O'Connor, Rory C, Germino, Matthew J, Barnard, David M, Andrews, Caitlin M, Bradford, John B, Pilliod, David S, Arkle, Robert S, Shriver, Robert K

“…Ecological droughts are deficits in soil-water availability that induce threshold-like ecosystem responses, such as causing altered or degraded plant-community…”
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Wildfire and climate change amplify knowledge gaps linking mountain source-water systems and agricultural water supply in the western United States Autor Barnard, David M., Green, Timothy R., Mankin, Kyle R., DeJonge, Kendall C., Rhoades, Charles C., Kampf, Stephanie K., Giovando, Jeremy, Wilkins, Mike J., Mahood, Adam L., Sears, Megan G., Comas, Louise H., Gleason, Sean M., Zhang, Huihui, Fassnacht, Steven R., Harmel, R. Daren, Altenhofen, Jon

“…Agricultural production in the western United States relies on water supplies from mountain source-water systems that are sensitive to impacts from wildfire…”
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Soil climate underpins year effects driving divergent outcomes in semi‐arid cropland‐to‐grassland restoration Autor Mahood, Adam L., Barnard, David M., Macdonald, Jacob A., Green, Timothy R., Erskine, Robert H.

“…Converting croplands to grasslands can restore ecosystem functions and services, but there is uncertainty about why some restoration treatments succeed and…”
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Diurnal temperature range drives understory plant community composition in micro-climatically complex temperate montane forests Autor Mahood, Adam L, Barnard, David M, Macdonald, Jacob A, Pittenger, David W, Hall, Sarah M, Fornwalt, Paula J

“…Cold air drainage is common in mountains, and leads to large, fine-scale differences in diurnal temperature range (DTR). DTR is hypothesized to drive plant…”
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Climate‐related trends in sapwood biophysical properties in two conifers: avoidance of hydraulic dysfunction through coordinated adjustments in xylem efficiency, safety and capacitance Autor BARNARD, DAVID M., MEINZER, FREDERICK C., LACHENBRUCH, BARBARA, MCCULLOH, KATHERINE A., JOHNSON, DANIEL M., WOODRUFF, DAVID R.

“…ABSTRACT In the Pacific north‐west, the Cascade Mountain Range blocks much of the precipitation and maritime influence of the Pacific Ocean, resulting in…”
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Topographic Position Index Predicts Within-Field Yield Variation in a Dryland Cereal Production System Autor Macdonald, Jacob A., Barnard, David M., Mankin, Kyle R., Miner, Grace L., Erskine, Robert H., Poss, David J., Mehan, Sushant, Mahood, Adam L., Mikha, Maysoon M.

“…Agricultural systems exhibit a large degree of within-field yield variability. We require a better understanding of the drivers of this variability in order to…”
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Do ray cells provide a pathway for radial water movement in the stems of conifer trees? Autor Barnard, David M, Lachenbruch, Barbara, McCulloh, Katherine A, Kitin, Peter, Meinzer, Frederick C

“…• Premise of the study: The pathway of radial water movement in tree stems presents an unknown with respect to whole-tree hydraulics. Radial profiles have…”
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Soil characteristics are associated with gradients of big sagebrush canopy structure after disturbance Autor Barnard, David M., Germino, Matthew J., Arkle, Robert S., Bradford, John B., Duniway, Michael C., Pilliod, David S., Pyke, David A., Shriver, Robert K., Welty, Justin L.

“…Reestablishing shrub canopy cover after disturbance in semi‐arid ecosystems, such as sagebrush steppe, is essential to provide wildlife habitat and restore…”
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Surface boundary layer stability and meteorological drivers of temporal microclimate variability in a semiarid grassland Autor Barnard, David M, Macdonald, Jacob, Erskine, Robert H., Green, Timothy R., Mahood, Adam, Gleason, Sean M.

“…•We observed substantial variability in VPD, Tair, and RH in a small grassland watershed.•Within-field variability was greatest under stable atmospheric…”
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Landscape and organismal factors affecting sagebrush‐seedling transplant survival after megafire restoration Autor Davidson, Bill E., Germino, Matthew J., Richardson, Bryce, Barnard, David M.

“…Larger and more frequent disturbances are motivating efforts to accelerate recovery of foundational perennial species by focusing efforts into establishing…”
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Transient population dynamics impede restoration and may promote ecosystem transformation after disturbance Autor Shriver, Robert K., Andrews, Caitlin M., Arkle, Robert S., Barnard, David M., Duniway, Michael C., Germino, Matthew J., Pilliod, David S., Pyke, David A., Welty, Justin L., Bradford, John B., Wang, Shaopeng

“…The apparent failure of ecosystems to recover from increasingly widespread disturbance is a global concern. Despite growing focus on factors inhibiting…”
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Thresholds and hotspots for shrub restoration following a heterogeneous megafire Autor Germino, Matthew J., Barnard, David M., Davidson, Bill E., Arkle, Robert S., Pilliod, David S., Fisk, Matthew R., Applestein, Cara

“…Context Reestablishing foundational plant species through aerial seeding is an essential yet challenging step for restoring the vast semiarid landscapes…”
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Precision management influences productivity and nutrients availability in dryland cropping system Autor Mikha, Maysoon M., Mankin, Kyle R., Khan, Shahbaz B., Barnard, David M.

“…Precision management (PM) aims to reduce inputs while increasing land productivity and economical return and enhancing cropping system resiliency to climate…”
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Non-native grass invasion drives biodiversity loss after a single fire in a semi-arid shrubland Autor Mahood, Adam L., Balch, Jennifer K., Barnard, David M., Suding, Katherine N., Chambers, Jeanne C.

“…In the Great Basin of the western United States, annual grass invasion has initiated a novel grass-fire cycle that has transformed vast areas of semi-arid…”
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Review of gridded climate products and their use in hydrological analyses reveals overlaps, gaps, and the need for a more objective approach to selecting model forcing datasets Autor Mankin, Kyle R., Mehan, Sushant, Green, Timothy R., Barnard, David M.

“…Climate forcing data accuracy drives performance of hydrologic models and analyses, yet each investigator needs to select from among the numerous gridded…”
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Long-term soil nutrient and understory plant responses to post-fire rehabilitation in a lodgepole pine forest Autor Kaiser, Sophia, Fegel, Timothy S., Barnard, David M., Mahood, Adam L., Sparks, Kya, Amundson, Kaela K., Wilkins, Michael J., Rhoades, Charles C.

“…Wildfires and other disturbances play a fundamental role in regenerating lodgepole pine forests. Though severe, stand-replacing fires are typical of this…”
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Greater sage‐grouse respond positively to intensive post‐fire restoration treatments Autor Poessel, Sharon A., Barnard, David M., Applestein, Cara, Germino, Matthew J., Ellsworth, Ethan A., Major, Don, Moser, Ann, Katzner, Todd E.

“…Habitat loss is the most prevalent threat to biodiversity in North America. One of the most threatened landscapes in the United States is the sagebrush…”
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Cannot see the random forest for the decision trees: selecting predictive models for restoration ecology Autor Barnard, David M., Germino, Matthew J., Pilliod, David S., Arkle, Robert S., Applestein, Cara, Davidson, Bill E., Fisk, Matthew R.

“…Improving predictions of restoration outcomes is increasingly important to resource managers for accountability and adaptive management, yet there is limited…”
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Carbon and water flux responses to physiology by environment interactions: a sensitivity analysis of variation in climate on photosynthetic and stomatal parameters Autor Bauerle, William L, Daniels, Alex B, Barnard, David M

“…Sensitivity of carbon uptake and water use estimates to changes in physiology was determined with a coupled photosynthesis and stomatal conductance (g ₛ)…”
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