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pro vyhledávání: '"Thompson Webb"'
Autor:
Thompson Webb
Publikováno v:
Drama Therapy Review. 4:199-208
Publikováno v:
Géographie physique et Quaternaire. 32:163-176
Isopoll maps based on 173 modern-pollen samples illustrate the geographical patterns of 12 pollen types within a 600,000 sq. km area centered in southern Québec. The mapped patterns reflect several scales of vegetational pattern that ranges from the
Publikováno v:
Geology. 38:135-138
The end Pleistocene to early Holocene drying of the North American midcontinent is an important case study for understanding regional drought, its drivers, and its impacts. This paper synthesizes pollen, δ13C, eolian, and paleohydrological proxies t
Autor:
Thompson Webb, Iain Colin Prentice
Publikováno v:
Journal of Quaternary Science. 1:35-43
Pollen diagrams traditionally are read as if pollen percentages were linearly related to relative tree abundances, although the slopes and intercepts of these relationships are accepted to differ among taxa. Corresponding map patterns of modern polle
Publikováno v:
Quaternary Science Reviews. 26:268-273
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 237:428-435
Lake Tulane provides one of the few continental sediment records beyond the late glacial period (~15,000 cal years B.P.) for eastern North America. Its continuous, organic-rich sediment has yielded pollen assemblages that date back 62,000 years. Here
Publikováno v:
Quaternary Science Reviews. 24:2194-2206
Temporal differences among fossil pollen samples from eastern North America provide a measure of the amount of climatic change that occurred on a broad spatial scale since the last glacial maximum (21,000 cal yr BP). Square-chord distances (SCDs) qua
Autor:
Thomas A. Minckley, Thompson Webb, Konrad Gajewski, John W. Williams, Sarah L. Shafer, Michael Sawada, A. E. Viau, J. Whitmore, Patrick J. Bartlein, Patricia M. Anderson, Linda B. Brubaker, Bryan N. Shuman
Publikováno v:
Quaternary Science Reviews. 24:1828-1848
The modern pollen network in North America and Greenland is presented as a database for use in quantitative calibration studies and paleoenvironmental reconstructions. The georeferenced database includes 4634 samples from all regions of the continent