Paleoecology and high-resolution paleohydrology of a kettle peatland in upper Michigan
- 20 January 2004
- journal article
- Published by Cambridge University Press (CUP) in Quaternary Research
- Vol. 61 (1), 1-13
- https://doi.org/10.1016/j.yqres.2003.07.013
Abstract
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 compared the timing of peatland and upland vegetation changes. To investigate the role of higher-frequency climate variability on peatland paleohydrology, we used testate amoebae to reconstruct a high-resolution, hydrologic history of the peatland for the past 5100 years, and compared this record to other regional records of paleoclimate and vegetation. Comparisons revealed coherent patterns of hydrological, vegetational, and climatic changes, suggesting that peatland paleohydrology responded to climate variability at millennial to sub-centennial time scales. Although ombrotrophic peatlands have been the focus of most high-resolution peatland paleoclimate research, paleohydrological records from Sphagnum-dominated, closed-basin peatlands record high-frequency and low-magnitude climatic changes and thus represent a significant source of unexplored paleoclimate data.Keywords
This publication has 45 references indexed in Scilit:
- The role of Late Holocene climate variability in the expansion of yellow birch in the western Great Lakes regionDiversity and Distributions, 2002
- A high-resolution speleothem record of climatic variability at the Allerød–Younger Dryas transition in Missouri, central United StatesPalaeogeography, Palaeoclimatology, Palaeoecology, 2001
- Tree‐ring data document 16th century megadrought over North AmericaEos, 2000
- Replicated proxy-climate signals over the last 2000 yr from two distant UK peat bogs: new evidence for regional palaeoclimate teleconnectionsQuaternary Science Reviews, 2000
- A reconstruction of Holocene climatic changes from peat bogs in north‐west ScotlandBoreas, 1998
- A 5500-year proxy-climate and vegetation record from blanket mire at Talla Moss, Borders, ScotlandThe Holocene, 1997
- Paleohydrological Implications of Holocene Peatland Development in Northern MichiganQuaternary Research, 1987
- Stratigraphy and genesis of the Lake Sixteen peatland, northern MichiganCanadian Journal of Botany, 1986
- Cyclic climatic variations in climate over the past 5,500 yr reflected in raised bogsNature, 1976
- Postglacial Forest Patterns Associated with till and Outwash in Northcentral Upper MichiganQuaternary Research, 1975