The magnitude and rapidity of the climate change marking the end of the Pleistocene in the mid-latitudes of South America
Palaeogeography, Palaeoclimatology, Palaeoecology
By: A.C. Ashworth and J.W. Hoganson
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Abstract
The chi-squared test of independence and cluster analysis of Otsuka similarity coefficients of fossil beetle assemblages from the Chilean Lake Region in the mid-latitudes of South America support the following conclusions: (1) the mean summer temperature of the glacial climate was 4-5??C lower than today's climate; (2) the climatic change from glacial to interglacial mode was in a single step centered on about 14,000 yr B.P.; (3) the climatic change was rapid, and within 1500 years the biota of a moorland had been completely replaced by a biota of a rain forest; (4) by 12,500 yr B.P., the low elevation beetle fauna of the Chilean Lake Region was similar in composition to that of the present day; and (5) no reversal in the postglacial warming trend, equivalent in age to the Younger Dryas Stade, was detected. ?? 1993.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The magnitude and rapidity of the climate change marking the end of the Pleistocene in the mid-latitudes of South America |
| Series title | Palaeogeography, Palaeoclimatology, Palaeoecology |
| Volume | 101 |
| Issue | 3-4 |
| Year Published | 1993 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Palaeogeography, Palaeoclimatology, Palaeoecology |
| First page | 263 |
| Last page | 270 |
| Google Analytic Metrics | Metrics page |