Search Results - "David Bruce Lewis"
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Do geographically isolated wetlands influence landscape functions?
Published in Proceedings of the National Academy of Sciences - PNAS (23-02-2016)“…Geographically isolated wetlands (GIWs), those surrounded by uplands, exchange materials, energy, and organisms with other elements in hydrological and habitat…”
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Effects of flooding and warming on soil organic matter mineralization in Avicennia germinans mangrove forests and Juncus roemerianus salt marshes
Published in Estuarine, coastal and shelf science (01-02-2014)“…Under a changing climate, coastal wetlands experience sea level rise, warming, and vegetation change, all of which may influence organic matter mineralization…”
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3
Response of soil nitrogen retention to the interactive effects of soil texture, hydrology, and organic matter
Published in Journal of geophysical research. Biogeosciences (01-03-2013)“…Advances in nitrogen (N) saturation and retention theories have focused on soil organic matter (SOM) biogeochemistry in the absence of dynamic soil hydrology…”
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4
Response of wetland soil carbon to groundwater conservation: Probabilistic outcomes from error propagation
Published in Ecological indicators (01-01-2016)“…•Whether restored wetland hydrology improves wetland function often goes unstudied.•I investigate if reduced groundwater pumping enhances wetland soil carbon…”
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Connecting carbon and nitrogen storage in rural wetland soil to groundwater abstraction for urban water supply
Published in Global change biology (01-04-2015)“…We investigated whether groundwater abstraction for urban water supply diminishes the storage of carbon (C), nitrogen (N), and organic matter in the soil of…”
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Inorganic nitrogen immobilization in live and sterile soil of old-growth conifer and hardwood forests: implications for ecosystem nitrogen retention
Published in Biogeochemistry (01-11-2012)“…Rapid immobilization of inorganic nitrogen (N) in soil contributes to ecosystem N accumulation, even in old-growth and chronically-fertilized forests once…”
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7
Carbon and nitrogen pools and mobile fractions in surface soils across a mangrove saltmarsh ecotone
Published in The Science of the total environment (01-12-2021)“…In the subtropics, climate change is pushing woody mangrove forests into herbaceous saltmarshes, altering soil carbon (C) and nitrogen (N) pools, with…”
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8
Forest succession, soil carbon accumulation, and rapid nitrogen storage in poorly remineralized soil organic matter
Published in Ecology (Durham) (01-10-2014)“…Substantial nitrogen (N) retention by temperate terrestrial ecosystems results from the rapid storage of newly deposited N in stable soil organic matter. Yet,…”
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Hierarchical Regulation of Nitrogen Export from Urban Catchments: Interactions of Storms and Landscapes
Published in Ecological applications (01-12-2007)“…In urban catchments of arid central Arizona, we investigate how the export of mineral and organic nitrogen (N) in storm runoff is regulated by interactions…”
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10
Legacies of agriculture and urbanization in labile and stable organic carbon and nitrogen in Sonoran Desert soils
Published in Ecosphere (Washington, D.C) (01-05-2014)“…Soils regulate air and water quality by storing large pools of carbon (C) and nitrogen (N). Land management decisions have an enduring influence on the…”
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11
Labile carbon and other soil quality indicators in two tillage systems during transition to organic agriculture
Published in Renewable agriculture and food systems (01-12-2011)“…Weed management is one of the primary challenges for producers transitioning from conventional to organic agriculture. Tillage and the use of cover crops are…”
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12
Agrarian legacy in soil nutrient pools of urbanizing arid lands
Published in Global change biology (01-04-2006)“…Today's worldwide expansion of dry land cities consumes cultivated and native ecosystems, providing laboratories for investigating imprints of former land use…”
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13
Subsystems, flowpaths, and the spatial variability of nitrogen in a fluvial ecosystem
Published in Landscape ecology (01-07-2007)“…Nutrient dynamics in rivers affect biogeochemical fluxes from land to oceans and the atmosphere. Fluvial ecosystems are thus important environments for…”
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14
Trade-Offs between Growth and Survival: Responses of Freshwater Snails to Predacious Crayfish
Published in Ecology (Durham) (01-03-2001)“…Foraging organisms must often balance the conflicting demands of feeding and avoiding predators. I investigated whether the freshwater snail Amnicola limosa…”
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15
Spatial Structure of Variability in a Semi-arid, Fluvial Ecosystem
Published in Ecosystems (New York) (01-04-2006)“…The arrangement and composition of flowpath types within a given network are thought to govern its functioning. This concept assumes that different flowpath…”
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16
Landscape spatial patterns in freshwater snail assemblages across Northern Highland catchments
Published in Freshwater biology (01-03-2000)“…1. Limnologists and landscape ecologists have illustrated how the spatial position of a lake in a landscape influences many of its properties, from the…”
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Distribution of recreational boating across lakes: do landscape variables affect recreational use?
Published in Freshwater biology (01-03-2000)“…1. Because people impact lake ecosystems, it is important to consider factors influencing the human use of freshwater resources. We investigated the influence…”
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Niche-based and biogeographic constraints on benthic communities
Published 01-01-2000“…The diversity and species composition of communities derive from niche-based and biogeographic processes. Niche-based constraints operate in the immediate…”
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Dissertation