Search Results - "Stone, Jeffery R"

Prolonged instability prior to a regime shift by Spanbauer, Trisha L, Allen, Craig R, Angeler, David G, Eason, Tarsha, Fritz, Sherilyn C, Garmestani, Ahjond S, Nash, Kirsty L, Stone, Jeffery R

“…Regime shifts are generally defined as the point of 'abrupt' change in the state of a system. However, a seemingly abrupt transition can be the product of a…”
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Ecological consequences of early Late Pleistocene megadroughts in tropical Africa by Cohen, Andrew S, Stone, Jeffery R, Beuning, Kristina R.M, Park, Lisa E, Reinthal, Peter N, Dettman, David, Scholz, Christopher A, Johnson, Thomas C, King, John W, Talbot, Michael R, Brown, Erik T, Ivory, Sarah J

“…Extremely arid conditions in tropical Africa occurred in several discrete episodes between 135 and 90 ka, as demonstrated by lake core and seismic records from…”
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Hydrochemistry and Diatom Assemblages on the Humpata Plateau, Southwestern Angola by Robakiewicz, Elena, de Matos, Daniela, Stone, Jeffery R., Junginger, Annett

“…Diatoms, a common siliceous alga, are effective paleoclimate and pollution indicators. They have been used in northern, eastern, and southern Africa as such…”
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Evolution and morphological diversity of the genus Diploneis (Bacillariophyta) in Lake Malawi, with description of six new species by Parikh, Hirak, Stone, Jeffery R., Jovanovska, Elena

“…Lake Malawi, one of the world’s oldest and most important freshwater systems, harbours a remarkable biotic diversity partly due to variable fluctuations in…”
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Implications of climate change for Daphnia in alpine lakes: predictions from long-term dynamics, spatial distribution, and a short-term experiment by Fischer, Janet M., Olson, Mark H., Williamson, Craig E., Everhart, Jennifer C., Hogan, Paula J., Mack, Jeremy A., Rose, Kevin C., Saros, Jasmine E., Stone, Jeffery R., Vinebrooke, Rolf D.

“…Alpine lakes may be particularly useful as sentinels of climate change because they are highly sensitive to environmental conditions. To explore the potential…”
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Detecting climate-driven ecological changes in high-altitude lakes in the Sierra Nevada, California by Lopera-Congote, Laura, McGlue, Michael M., Westover, Karlyn S, Yeager, Kevin, Streib, Laura, Stone, Jeffery R

“…Over the past several decades, increasing climate instability in the Sierra Nevada, California, expressed primarily as reduced winter precipitation and higher…”
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Subdecadal phytolith and charcoal records from Lake Malawi, East Africa imply minimal effects on human evolution from the ∼74 ka Toba supereruption by Yost, Chad L., Jackson, Lily J., Stone, Jeffery R., Cohen, Andrew S.

“…The temporal proximity of the ∼74 ka Toba supereruption to a putative 100–50 ka human population bottleneck is the basis for the volcanic winter/weak Garden of…”
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Diatom spatial variations in Gull Lake (California) sediments: implications for improving paleolimnological interpretations in small glacial lakes by Lopera Congote, Laura, McGlue, Michael M., Yeager, Kevin M., Westover, Karlyn S., Stone, Jeffery R.

“…Diatoms have been extensively used as paleolimnological indicators because they acutely respond to changes in their environment. Diatom assemblages recovered…”
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Coherent late-Holocene climate-driven shifts in the structure of three Rocky Mountain lakes by Stone, Jeffery R, Saros, Jasmine E, Pederson, Gregory T

“…Large-scale atmospheric pressure centers, such as the Aleutian and Icelandic Low, have a demonstrated relationship with physical lake characteristics in…”
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Climate-induced changes in lake ecosystem structure inferred from coupled neo- and paleoecological approaches by Saros, Jasmine E, Stone, Jeffery R, Pederson, Gregory T, Slemmons, Krista E. H, Spanbauer, Trisha, Schliep, Anna, Cahl, Douglas, Williamson, Craig E, Engstrom, Daniel R

“…Over the 20th century, surface water temperatures have increased in many lake ecosystems around the world, but long-term trends in the vertical thermal…”
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Body size distributions signal a regime shift in a lake ecosystem by Spanbauer, Trisha L., Allen, Craig R., Angeler, David G., Eason, Tarsha, Fritz, Sherilyn C., Garmestani, Ahjond S., Nash, Kirsty L., Stone, Jeffery R., Stow, Craig A., Sundstrom, Shana M.

“…Communities of organisms, from mammals to microorganisms, have discontinuous distributions of body size. This pattern of size structuring is a conservative…”
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Late Pleistocene paleohydrography and diatom paleoecology of the central basin of Lake Malawi, Africa by Stone, Jeffery R., Westover, Karlyn S., Cohen, Andrew S.

“…Analysis of sedimentary diatom assemblages (10 to 144 ka) form the basis for a detailed reconstruction of the paleohydrography and diatom paleoecology of Lake…”
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Anthropogenic climate change has altered lake state in the Sierra Nevada (California, USA) by Streib, Laura C., Stone, Jeffery R., Lyon, Eva C., Quang, Hung H., Yeager, Kevin M., Zimmerman, Susan R. H., McGlue, Michael M.

“…Climatic changes threaten freshwater resources and aquatic ecosystem health in the Sierra Nevada (California, USA), which has important consequences for…”
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Paleoecological analysis of Holocene sediment cores from the southern basin of Lake Tanganyika: implications for the future of the fishery in one of Africa’s largest lakes by Kamulali, Tumaini M., McGlue, Michael M., Stone, Jeffery R., Kimirei, Ismael A., Goodman, Paul J., Cohen, Andrew S.

“…Extensive research has been conducted at Lake Tanganyika to understand its vulnerability to a warming climate and fishing pressure. However, much of this work…”
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Paleoenvironmental context for the Late Pleistocene appearance of Didymosphenia in a North American alpine lake by Spaulding, Sarah A., Stone, Jeffery R., Norton, Stephen A., Nurse, Andrea, Saros, Jasmine E.

“…The nuisance species Didymosphenia geminata is thought to have been spread by humans across North and South America and New Zealand. This diatom is of interest…”
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Landscape–lake interactions in the Beartooth Mountains, Wyoming: a 350-year fire history reconstruction by Brown, Sabrina R., Stone, Jeffery R., McLennan, David, Latimer, Jennifer, Westover, Karlyn S.

“…Wildfire is the dominant natural disturbance agent in forests of the Greater Yellowstone Ecosystem, and can have long-lasting impacts on local landscapes and…”
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Nitrogen subsidies in glacial meltwaters have altered planktonic diatom communities in lakes of the US Rocky Mountains for at least a century by Slemmons, Krista E. H., Rodgers, Markie L., Stone, Jeffery R., Saros, Jasmine E.

“…We examined sedimentary diatom profiles from alpine lakes in the US Rocky Mountains to assess when glacially fed lakes started receiving nitrogen subsidies and…”
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Paleoecology explains Holocene chemical changes in lakes of the Nhecolândia (Pantanal-Brazil) by Guerreiro, Renato Lada, McGlue, Michael M., Stone, Jeffery R., Bergier, Ivan, Parolin, Mauro, da Silva Caminha, Silane A. F., Warren, Lucas V., Assine, Mario L.

“…The objective of this research is to examine the history of lentic ecosystem salinity in the southern Pantanal wetlands (Brazil). The timing and controls on…”
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Reconstructing the Environmental Context of Human Origins in Eastern Africa Through Scientific Drilling by Cohen, Andrew S, Campisano, Christopher J, Arrowsmith, J. Ramón, Asrat, Asfawossen, Beck, Catherine C, Behrensmeyer, Anna K, Deino, Alan L, Feibel, Craig S, Foerster, Verena, Kingston, John D, Lamb, Henry F, Lowenstein, Tim K, Lupien, Rachel L, Muiruri, Veronica, Olago, Daniel O, Owen, R. Bernhart, Potts, Richard, Russell, James M, Schaebitz, Frank, Stone, Jeffery R, Trauth, Martin H, Yost, Chad L

“…Paleoanthropologists have long speculated about the role of environmental change in shaping human evolution in Africa. In recent years, drill cores of late…”
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Sedimentary geochemistry of deepwater slope deposits in southern Lake Tanganyika (East Africa); effects of upwelling and minor lake level oscillations by McGlue, Michael M, Ellis, Geoffrey S, Brannon, McKenzie A, Latimer, Jennifer C, Stone, Jeffery R, Ivory, Sarah J, Mganza, Neema E, Soreghan, Michael J, Scholz, Christopher A

“…Lake Tanganyika ranks among the most valuable modern analogs for understanding depositional processes of carbonaceous sediments in ancient tropical rifts…”
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