Stephen T Jackson

Dados Biográficos

ID1571496
NOMEStephen T Jackson
PRENOMESStephen T
SOBRENOMEJackson
ASSINATURAJACKSON S T
AFILIAÇÕESUniversity of Wyoming
ORCID0000-0002-1487-4652
VERIFICADOSim
TOTAL DE OBRAS26
TOTAL DE CITAÇÕES64
TOTAL COMO AUTOR26
TOTAL COMO EDITOR0
PRIMEIRO ANO DE PUBLICAÇÃO1982
ANO MAIS RECENTE DE PUBLICAÇÃO2020
ÍNDICE H4

  • Comparison of settlement-era vegetation reconstructions for STEPPS and Reveals pollen–vegetation models in the northeastern United States

    Open AccessMathias Trachsel, Andria Dawson et al.ARTICLEQuaternary Research2020

    Reconstructions of prehistoric vegetation composition help establish natural baselines, variability, and trajectories of forest dynamics before and during the emergence of intensive anthropogenic land use. Pollen–vegetation models (PVMs) enable such reconstructions from fossil pollen assemblages using process-based representations of taxon-specific pollen production and dispersal. However, several PVMs and variants now exist, and the sensitivity …

  • Late Quaternary vegetation, climate, and fire history of the Southeast Atlantic Coastal Plain based on a 30,000-yr multi-proxy record from White Pond, South Carolina, USA

    Open AccessTeresa R Krause, James M Russell et al.ARTICLEQuaternary Research2019

    The patterns and drivers of late Quaternary vegetation dynamics in the southeastern United States are poorly understood due to low site density, problematic chronologies, and a paucity of independent paleoclimate proxy records. We present a well-dated (15 accelerator mass spectrometry 14 C dates) 30,000-yr record from White Pond, South Carolina that consists of high-resolution analyses of fossil pollen, macroscopic charcoal, and Sporormiella spor…

  • Comparing and improving methods for reconstructing peatland water-table depth from testate amoebae

    Open AccessConnor Nolan, John Tipton et al.ARTICLEThe Holocene2019Referências: 8

    Proxies that use changes in the composition of ecological communities to reconstruct temporal changes in an environmental covariate are commonly used in paleoclimatology and paleolimnology. Existing methods, such as weighted averaging and modern analog technique, relate compositional data to the covariate in very simple ways, and different methods are seldom compared systematically. We present a new Bayesian model that better represents the under…

  • The Neotoma Paleoecology Database, a multiproxy, international, community-curated data resource

    Open AccessJohn W Williams, Eric C Grimm et al.ARTICLEQuaternary Research2018

    The Neotoma Paleoecology Database is a community-curated data resource that supports interdisciplinary global change research by enabling broad-scale studies of taxon and community diversity, distributions, and dynamics during the large environmental changes of the past. By consolidating many kinds of data into a common repository, Neotoma lowers costs of paleodata management, makes paleoecological data openly available, and offers a high-quality…

  • The effects of anthropogenic land cover change on pollen-vegetation relationships in the American Midwest

    Open AccessEllen Ruth Kujawa, Goring et al.ARTICLEAnthropocene2016Citada por: 1Referências: 70

  • Summary of the Snowmastodon Project Special Volume A high-elevation, multi-proxy biotic and environmental record of MIS 6–4 from the Ziegler Reservoir fossil site, Snowmass Village, Colorado, USA

    Open AccessIan M Miller, Jeffrey S Pigati et al.ARTICLEQuaternary Research2014

    In North America, terrestrial records of biodiversity and climate change that span Marine Oxygen Isotope Stage (MIS) 5 are rare. Where found, they provide insight into how the coupling of the ocean–atmosphere system is manifested in biotic and environmental records and how the biosphere responds to climate change. In 2010–2011, construction at Ziegler Reservoir near Snowmass Village, Colorado (USA) revealed a nearly continuous, lacustrine/wetland…

  • Biogeography of Pleistocene conifer species from the Ziegler Reservoir fossil site, Snowmass Village, Colorado

    Open AccessDane M Miller, Ian M Miller et al.ARTICLEQuaternary Research2014

    Pleistocene biogeography of conifer species is poorly known in much of western North America. We conducted morphological studies on 201 conifer cones and cone fragments recovered from Pleistocene sediments at the Ziegler Reservoir fossil site (2705 m) near Snowmass Village, Colorado. The basin, formed ~155–130 ka, contains fossil-bearing lacustrine, palustrine, and colluvial sediments spanning approximately 85 ka. Using a suite of morphological c…

  • Vegetation history in central Kentucky and Tennessee (USA) during the last glacial and deglacial periods

    Open AccessYao Liu, Jennifer J Andersen et al.ARTICLEQuaternary Research2012

    Knowledge about vegetation dynamics during the last glacial and deglacial periods in southeastern North America is under-constrained owing to low site density and problematic chronologies. New pollen records from two classic sites, Anderson Pond, TN, and Jackson Pond, KY, supported by AMS 14 C age models, span 25.2–13.7 ka and 31.0–15.4 ka, respectively. A transition from Pinus dominance to Picea dominance is recorded at Jackson Pond ca. 26.2 ka,…

  • Developing an Integrated History and future of People on Earth (Ihope)

    Open AccessR Costanza, Sander Van Der Leeuw et al.ARTICLECurrent Opinion in Environmental…2012Citada por: 17Referências: 19

  • Beyond Predictions

    Open AccessTerence P Dawson, Stephen T Jackson et al.ARTICLEScience2011

    Climate change is predicted to become a major threat to biodiversity in the 21st century, but accurate predictions and effective solutions have proved difficult to formulate. Alarming predictions have come from a rather narrow methodological base, but a new, integrated science of climate-change biodiversity assessment is emerging, based on multiple sources and approaches. Drawing on evidence from paleoecological observations, recent phenological …

  • Response of arboreal pollen abundance to late-Holocene drought events in the Upper Midwest, USA

    Open AccessThomas A Minckley, Robert K Booth et al.ARTICLEThe Holocene2011Citada por: 3Referências: 5

    The impact of short-term climate anomalies and disturbances on past plant communities can be understood using high temporal or contiguous sedimentary pollen analysis. The response of pollen assemblages to decadal- to multidecadal-scale moisture variability was analyzed for the time intervals 3000–2200 and 1400–500 cal. yr BP. The hydroclimate and vegetation history for Minden Bog in southeastern Michigan were reconstructed using analyses of sedim…

  • Toward an Integrated History to Guide the Future

    Open AccessSander Van Der Leeuw, R Costanza et al.ARTICLEConservation Ecology2011Citada por: 9

    Van der Leeuw, S., R. Costanza, S. Aulenbach, S. Brewer, M. Burek, S. Cornell, C. Crumley, J. A. Dearing, C. Downy, L. J. Graumlich, S. Heckbert, M. Hegmon, K. Hibbard, S. T. Jackson, I. Kubiszewski, P. Sinclair, S. Sörlin, and W. Steffen. 2011. Toward an integrated history to guide the future. Ecology and Society 16(4): 2. https://doi.org/10.5751/ES-04341-160402

  • Indian Summer Monsoon variations could have affected the early-Holocene woodland expansion in the Near East

    Open AccessMorteza Djamali, Hossein Akhani et al.ARTICLEThe Holocene2010Citada por: 8Referências: 6

    Postglacial expansion of deciduous oak woodlands of the Zagros—Anti-Taurus Mountains, a major biome of the Near East, was delayed until the middle Holocene at ~6300 cal. yr BP. The current hypotheses explain this delay as a consequence of a regional aridity during the early Holocene, slow migration rates of forest trees, and/or a long history of land use and agro-pastoralism in this region. In the present paper, support is given to a hypothesis t…

  • Pleistocene Megafaunal Collapse, Novel Plant Communities, and Enhanced Fire Regimes in North America

    Open AccessJacquelyn L Gill, John W Williams et al.ARTICLEScience2009

    Demise of the Megafauna Approximately 10,000 years ago, the Pleistocene-Holocene deglaciation in North America produced widespread biotic and environmental change, including extinctions of megafauna, reorganization of plant communities, and increased wildfire. The causal links and sequences of these changes remain unclear. Gill et al. (p. 1100 ; see the Perspective by Johnson ) unravel these connections in an analysis of pollen, charcoal, and the…

  • Novel climates, no-analog communities, and ecological surprises

    Open AccessJohn W Williams, Stephen T JacksonARTICLEFrontiers in Ecology and the…2007

    No-analog communities (communities that are compositionally unlike any found today) occurred frequently in the past and will develop in the greenhouse world of the future. The well documented no-analog plant communities of late-glacial North America are closely linked to “novel” climates also lacking modern analogs, characterized by high seasonality of temperature. In climate simulations for the Intergovernmental Panel on Climate Change A2 and B1…

  • A severe centennial-scale drought in midcontinental North America 4200 years ago and apparent global linkages

    Open AccessRobert K Booth, Stephen T Jackson et al.ARTICLEThe Holocene2005Citada por: 20Referências: 17

    We present evidence from a variety of physical and biological proxies for a severe drought that affected the mid-continent of North America between 4.1 and 4.3 ka. Rapid climate changes associated with the event had large and widespread ecological effects, including dune reactivation, forest fires and long-term changes in forest composition, highlighting a clear ecological vulnerability to similar future changes. Drought is also documented in the…

  • Paleoecology and high-resolution paleohydrology of a kettle peatland in upper Michigan

    Open AccessRobert K Booth, Stephen T Jackson et al.ARTICLEQuaternary Research2004

    We investigated the developmental and hydrological history of a Sphagnum -dominated, kettle peatland in Upper Michigan using testate amoebae, plant macrofossils, and pollen. Our primary objective was to determine if the paleohydrological record of the peatland represents a record of past climate variability at subcentennial to millennial time scales. To assess the role of millennial-scale climate variability on peatland paleohydrology, we compare…

  • Modern Analogs in Quaternary Paleoecology

    Stephen T Jackson, John W WilliamsARTICLEAnnual Review of Earth and…2004

    Modern analog analysis, the comparison of Quaternary fossil pollen assemblages with modern assemblages, has long been a mainstay of paleoecological and paleoclimatic inference. The logic of analogical inference involves a comparative element (comparison of modern and fossil assemblages to select matches and assess goodness of fit) and a causal element (assumption that the relationships between modern vegetation and derivative pollen assemblages a…

  • A high-resolution record of late-Holocene moisture variability from a Michigan raised bog, USA

    Open AccessRobert K Booth, Stephen T JacksonARTICLEThe Holocene2003Citada por: 4Referências: 13

    We reconstructed the late-Holocene surface-moisture history and vegetation dynamics of a raised bog in Michigan using testate amoebae, peat humification, pollen, stomata and plant macrofossils. Our primary objective was to compare bog palaeohydrology with the water-level history of Lake Michigan, and to regional and local vegetation changes. Hydrologic histories inferred from testate amoebae and humification show similar trends, and correspond wi…

  • Palynological and AVHRR observations of modern vegetational gradients in eastern North America

    Open AccessJohn W Williams, Stephen T JacksonARTICLEThe Holocene2003Citada por: 2Referências: 6

    Both fossil pollen records and satellite-based instruments are remote sensors of Earth's vegetation with complementary properties. Satellites supply spatially continuous and highly resolved images for the past several decades, whereas pollen records include local and regional signals of vegetation composition, spanning millennia. Together, pollen and satellite-based observations measure vegetation change across a broad range of temporal scales. H…

  • Holocene Vegetation and Climate History of the Northern Bighorn Basin, Southern Montana

    Open AccessMark E Lyford, Julio L Betancourt et al.ARTICLEQuaternary Research2002

    Records of Holocene vegetation and climate change at low elevations ( 14 C-dated woodrat middens at two low-elevation sites (1275 to 1590 m), currently vegetated by Juniperus osteosperma woodlands, in the northern Bighorn Basin. Macrofossil and pollen analyses show that the early Holocene was cooler than today, with warming and drying in the middle Holocene. During the Holocene, boreal ( Juniperus communis, J. horizontalis ) and montane species (…

  • Paleoecology of a Northern Michigan Lake and the Relationship among Climate, Vegetation, and Great Lakes Water Levels

    Open AccessRobert K Booth, Stephen T Jackson et al.ARTICLEQuaternary Research2002

    We reconstructed Holocene water-level and vegetation dynamics based on pollen and plant macrofossils from a coastal lake in Upper Michigan. Our primary objective was to test the hypothesis that major fluctuations in Great Lakes water levels resulted in part from climatic changes. We also used our data to provide temporal constraints to the mid-Holocene dry period in Upper Michigan. From 9600 to 8600 cal yr B.P. a shallow, lacustrine environment c…

  • Late Wisconsinan Vegetation and Environment of the Tunica Hills Region, Louisiana/Mississippi

    Open AccessStephen T Jackson, Charles R GivensARTICLEQuaternary Research1994

    Pollen, plant macrofossil, and radiocarbon-dating studies of seven exposures of fluvial sediments in the Tunica Hills region of southeastern Louisiana and southwestern Mississippi provide new information on late Wisconsinan vegetation, flora, and environment of the region. The assemblages date between 25,250 and 17,530 yr B.P. Pollen and macrofossil assemblages are dominated by Picea, which comprises 40-70% of the pollen assemblages. Abies and La…

  • Pollen and Macrofossils from Wisconsinan Interstadial Sediments in Northeastern Georgia

    Open AccessStephen T Jackson, Donald R WhiteheadARTICLEQuaternary Research1993

    Pollen and plant macrofossil analyses and dating (both TAMS and conventional 14 C) of wetland sediments from the Nodoroc Site in the Piedmont region of northeastern Georgia identified two depositional episodes of interstadial (ca. 26,000-22,000 yr B.P.) and mid- to late Holocene ( Pinus and Quercus, with Carya, Picea, and Abies also present in significant amounts. The interstadial assemblages had lower Pinus and higher Quercus pollen percentages …

  • Accelerator Radiocarbon Date Indicates Mid-Holocene age for Hickory Nut from Indiana Late-Glacial Sediments

    Open AccessStephen T Jackson, Donald R Whitehead et al.ARTICLEQuaternary Research1986

    Delcourt, P A., Delcourt, H. R., Brister.R. C., and often (as in the present case) without de-Lackey, L. E. (1980).Quaternary vegetation history of the Mississippi Embayment.Quaternuy Restroying the specimen.We, therefore, search 13, 111-132.strongly advocate wider application of the Grootes, P. M. (1983).Radioactive isotopes in the Ho- technique.For instance, in the central Eocene.In "Late-Quaternary Environments of the United States there are s…