Search Results - "Shapley, Mark D"

A Coherent Signature of Anthropogenic Nitrogen Deposition to Remote Watersheds of the Northern Hemisphere by Holtgrieve, Gordon W., Schindler, Daniel E., Hobbs, William O., Leavitt, Peter R., Ward, Eric J., Bunting, Lynda, Chen, Guangjie, Finney, Bruce P., Gregory-Eaves, Irene, Holmgren, Sofia, Lisac, Mark J., Lisi, Peter J., Nydick, Koren, Rogers, Lauren A., Saros, Jasmine E., Selbie, Daniel T., Shapley, Mark D., Walsh, Patrick B., Wolfe, Alexander P.

“…Humans have more than doubled the amount of reactive nitrogen (Nr) added to the biosphere, yet most of what is known about its accumulation and ecological…”
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Lake levels in a discontinuous permafrost landscape: Late Holocene variations inferred from sediment oxygen isotopes, Yukon Flats, Alaska by Anderson, Lesleigh, Finney, Bruce P., Shapley, Mark D.

“…During recent decades, lake levels in the Yukon Flats region of interior Alaska have fluctuated dramatically. However, prior to recorded observations, no data…”
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Ecological, Landscape, and Climatic Regulation of Sediment Geochemistry in North American Sockeye Salmon Nursery Lakes: Insights for Paleoecological Salmon Investigations by Selbie, Daniel T., Finney, Bruce P., Barto, David, Bunting, Lynda, Chen, Guangjie, Leavitt, Peter R., Maclsaac, Erland A., Schindler, Daniel E., Shapley, Mark D., Gregory-Eaves, Irene

“…We used multiple linear regressions across a Northeast Pacific region 56-lake set to examine the influence of sockeye salmon spawner densities and…”
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Holocene climate recorded by magnetic properties of lake sediments in the Northern Rocky Mountains, USA by Maxbauer, Daniel P, Shapley, Mark D, Geiss, Christoph E, Ito, Emi

“…We present two hypotheses regarding the evolution of Holocene climate in the Northern Rocky Mountains that stem from a previously unpublished environmental…”
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SuessR: Regional corrections for the effects of anthropogenic CO2 on δ13C data from marine organisms by Clark, Casey T., Cape, Mattias R., Shapley, Mark D., Mueter, Franz J., Finney, Bruce P., Misarti, Nicole

“…Anthropogenic CO2 emissions associated with fossil fuel combustion have caused declines in baseline oceanic δ13C values. This phenomenon, called the Suess…”
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Late Quaternary glacial maxima in southern Patagonia: insights from the Lago Argentino glacier lobe by Romero, Matias, Penprase, Shanti B, Van Wyk de Vries, Maximillian S, Wickert, Andrew D, Jones, Andrew G, Marcott, Shaun A, Strelin, Jorge A, Martini, Mateo A, Rittenour, Tammy M, Brignone, Guido, Shapley, Mark D, Ito, Emi, MacGregor, Kelly R, Caffee, Marc W

“…Determining the timing and extent of Quaternary glaciations around the globe is critical to understanding the drivers behind climate change and glacier…”
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Holocene Thermokarst Lake Dynamics in Northern Interior Alaska: The Interplay of Climate, Fire, and Subsurface Hydrology by Anderson, Lesleigh, Edwards, Mary, Shapley, Mark D., Finney, Bruce P., Langdon, Catherine

“…The current state of permafrost in Alaska and meaningful expectations for its future evolution are informed by long-term perspectives on previous permafrost…”
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Lake morphometry controls the remobilization and long-term geochemical imprint of distal tephra deposition by Shapley, Mark D, Finney, Bruce P

“…Deposition of distal tephra-fall deposits in lake systems with low watershed sediment fluxes can represent large geochemical anomalies in sediment elemental…”
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Early retreat of the Alaska Peninsula Glacier Complex and the implications for coastal migrations of First Americans by Misarti, Nicole, Finney, Bruce P., Jordan, James W., Maschner, Herbert D.G., Addison, Jason A., Shapley, Mark D., Krumhardt, Andrea, Beget, James E.

“…The debate over a coastal migration route for the First Americans revolves around two major points: seafaring technology, and a viable landscape and resource…”
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Isotopic evolution and climate paleorecords: modeling boundary effects in groundwater-dominated lakes by Shapley, Mark D., Ito, Emi, Donovan, Joseph J.

“…We used an isotopic mass-balance model to examine how the hydrogeologic setting of lakes influences isotopic response of evaporating lake water to idealized…”
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SuessR: Regional corrections for the effects of anthropogenic CO 2 on δ 13 C data from marine organisms by Clark, Casey T., Cape, Mattias R., Shapley, Mark D., Mueter, Franz J., Finney, Bruce P., Misarti, Nicole

“…Abstract Anthropogenic CO 2 emissions associated with fossil fuel combustion have caused declines in baseline oceanic δ 13 C values. This phenomenon, called…”
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Lake carbonate-δ18O records from the Yukon Territory, Canada: Little Ice Age moisture variability and patterns by Anderson, Lesleigh, Finney, Bruce P., Shapley, Mark D.

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Lake carbonate- delta 18O records from the Yukon Territory, Canada: Little Ice Age moisture variability and patterns by Anderson, Lesleigh, Finney, Bruce P, Shapley, Mark D

“…A 1000-yr history of climate change in the central Yukon Territory, Canada, is inferred from sediment composition and isotope geochemistry from small,…”
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Lake carbonate-δ 18O records from the Yukon Territory, Canada: Little Ice Age moisture variability and patterns by Anderson, Lesleigh, Finney, Bruce P., Shapley, Mark D.

“…A 1000-yr history of climate change in the central Yukon Territory, Canada, is inferred from sediment composition and isotope geochemistry from small,…”
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