Widespread drought episodes in the western Great Lakes region during the past 2000 years: Geographic extent and potential mechanisms

Booth, Robert K.; Notaro, Michael; Jackson, Stephen T.; Kutzbach, John E.

doi:10.1016/j.epsl.2005.12.028

Cited by 126 publications

(143 citation statements)

References 61 publications

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“…The climate shift that affected the Yellowstone region at roughly 800 cal BP is evident in many parts of western and central North America (Woodhouse and Overpeck, 1998;Laird et al, 2003;Goble et al, 2004;Booth et al, 2006), which suggests that changes in Pacific and/or Atlantic sea-surface temperatures altered the atmospheric circulation patterns across North America. In addition, there is more limited evidence for a major climatic shift at roughly 2100 cal BP (Laird et al, 1996;Anderson et al, 2005;Denniston et al, 2007;Miao et al, 2007), which also may reflect a large-scale change in the continental circulation.…”

Section: Comparison To Regional Recordsmentioning

confidence: 99%

A diatom record of late Holocene climate variation in the northern range of Yellowstone National Park, USA

Bracht

Stone

Fritz

2008

Quaternary International

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Section: Comparison To Regional Recordsmentioning

confidence: 99%

A diatom record of late Holocene climate variation in the northern range of Yellowstone National Park, USA

Bracht

Stone

Fritz

2008

Quaternary International

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“…Recent paleoclimate studies indicate that low-frequency climate trends have been punctuated by significant fluctuations (29,30) and rapid transitions between climate states (31)(32)(33). For example, toward the end of the orbitally controlled early-Holocene warm period, between ca.…”

Section: Nested Multiscale Climate Variability and Changementioning

confidence: 99%

Ecology and the ratchet of events: Climate variability, niche dimensions, and species distributions

Jackson¹,

Betancourt

Booth

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

457

468

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Climate change in the coming centuries will be characterized by interannual, decadal, and multidecadal fluctuations superimposed on anthropogenic trends. Predicting ecological and biogeographic responses to these changes constitutes an immense challenge for ecologists. Perspectives from climatic and ecological history indicate that responses will be laden with contingencies, resulting from episodic climatic events interacting with demographic and colonization events. This effect is compounded by the dependency of environmental sensitivity upon life-stage for many species. Climate variables often used in empirical niche models may become decoupled from the proximal variables that directly influence individuals and populations. Greater predictive capacity, and morefundamental ecological and biogeographic understanding, will come from integration of correlational niche modeling with mechanistic niche modeling, dynamic ecological modeling, targeted experiments, and systematic observations of past and present patterns and dynamics.biogeography ͉ climate change ͉ paleoecology ͉ regeneration niche

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“…Although the moisture sensitivity of these organisms has been recognised for over a century (Leidy, 1879;Jung, 1936), work over the past several decades has demonstrated the utility of testate amoebae as quantitative surface-moisture indicators. High sensitivity to moisture variation has been demonstrated by coherence in reconstructions of wet and dry fluctuations within and between mires (Hendon et al, 2001;Booth et al, 2006). Advantages of using testate amoebae in peat-based palaeoclimate studies include their rapid response time to environmental changes, the ease with which community composition can be quantified using standard light microscopy, the small sample volumes needed for analysis (i.e., 0.5e1 cm 3 ), and the ability to reconstruct past water-table depths quantitatively, including associated error estimates Charman, 2001;Mitchell et al, 2008a).…”

Section: Use Of Testate Amoebaementioning

confidence: 99%

Development and refinement of proxy-climate indicators from peats

Chambers

Booth

Vleeschouwer

et al. 2012

Quaternary International

157

104

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 11364 The Netherlands a b s t r a c t Peat, especially from acidic mires (bogs), is a natural archive of past environmental change. Reconstructions of past climate from bogs commenced in the 19th Century through examination of visible peat stratigraphy, and later formed the basis for a postglacial climatic scheme widely used in Northwest Europe. Nevertheless, misconceptions as to how bogs grow led to a 50-year lacuna in peat-climate study, before the concept of 'cyclic regeneration' in bogs was refuted. In recent decades, research using proxyclimate indicators from bogs has burgeoned. A range of proxies for past hydrological change has been developed, as well as use of pollen, bog oaks and pines and other data to reconstruct past temperatures. Most of this proxy-climate research has been carried out in Northern Europe, but peat-based research in parts of Asia and North America has increased, particularly during the last decade, while research has also been conducted in Australia, New Zealand and South America. This paper reviews developments in proxy-climate reconstructions from peatlands; chronicles use of a range of palaeo-proxies such as visible peat stratigraphy, plant macrofossils, peat humification, testate amoebae and non-pollen palynomorphs; and explains the use of wiggle-match radiocarbon dating and relationship to climate shifts. It details other techniques being used increasingly, such as biomarkers, stable-isotopes, inorganic geochemistry and estimation of dust flux; and points to new proxies under development. Although explicit protocols have been developed recently for research on ombrotrophic mires, it must be recognised that not all proxies and techniques have universal applicability, owing to differences in species assemblages, mire formation, topographic controls, and geochemical characteristics.

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Widespread drought episodes in the western Great Lakes region during the past 2000 years: Geographic extent and potential mechanisms

Cited by 126 publications

References 61 publications

A diatom record of late Holocene climate variation in the northern range of Yellowstone National Park, USA

A diatom record of late Holocene climate variation in the northern range of Yellowstone National Park, USA

Ecology and the ratchet of events: Climate variability, niche dimensions, and species distributions

Development and refinement of proxy-climate indicators from peats

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