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Upland tundra in the foothills of the Brooks Range, Alaska, U.S.A.: lichen long-term photosynthetic CO2 uptake and net carbon gain
Estimates of carbon gain were obtained based upon integration of previously published measurements of diel courses of CO2 exchange of seven lichen species in their natural tundra habitat. Total netExpand
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Marine bivalve shell geochemistry and ultrastructure from modern low pH environments: environmental effect versus experimental bias
Abstract. Bivalve shells can provide excellent archives of past environmental change but have not been used to interpret ocean acidification events. We investigated carbon, oxygen and trace elementExpand
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Upland tundra in the foothills of the Brooks Range, Alaska: Influence of light, water content and temperature on CO2 exchange of characteristic lichen species
Summary In a previous publication we described diel courses of CO 2 exchange and microclimate conditions for characteristic lichens in their natural habitat within upland tundra communities ofExpand
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Exploring aberrant bivalve shell ultrastructure and geochemistry as proxies for past sea water acidification
Throughout much of Earth’s history, marine carbonates have represented one of the most important geological archives of environmental change. Several pivotal events during the Phanerozoic, such asExpand
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Model-based estimates of water loss from “patches” of the understory mosaic of the Hartheim Scots pine plantation
SummaryDuring the Hartheim Experiment (HartX) 1992 conducted in the Upper Rhine Valley, Germany, we estimated water vapor flux from the understory and the forest floor by several methods. At theExpand
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Vegetation Structure and Aboveground Carbon and Nutrient Pools in the Imnavait Creek Watershed
The North Slope of the Brooks Range in Alaska spans three physiographic provinces: the Coastal Plain, the Brooks Range Foothills, and the Brooks Range proper (Hulten 1968). The vegetation of theExpand
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Marine bivalve geochemistry and shell ultrastructure from modern low pH environments
Marine bivalve geochemistry and shell ultrastructure from modern low pH environments S. Hahn, R. Rodolfo-Metalpa, E. Griesshaber, W. W. Schmahl, D. Buhl, J. M. Hall-Spencer, C. Baggini, K. T. Fehr,Expand
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Upland tundra in the foothills of the Brooks Range, Alaska: Diurnal CO2 exchange patterns of characteristic lichen species
Summary CO2 exchange, water content, and microclimate conditions were observed for seven characteristic lichen species in their natural habitat within upland tundra communities of northern Alaska.Expand
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Leaf-level gas exchange and scaling-up of forest understory carbon fixation rates with a “patch-scale” canopy model
SummaryDuring the Hartheim experiment (HartX) 1992, conducted in the Upper Rhine Valley, Germany, we estimated water vapor flux from the understory by several methods as reported in Wedler et al.Expand
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