Vegetation, climate and fire-dynamics in East Africa inferred from the Maundi crater pollen record from Mt Kilimanjaro during the last glacial?interglacial cycle

[unable to retrieve full-text content]

Source: www.sciencedirect.com --- Friday, March 23, 2012
Publication year: 2012 Source: Quaternary Science Reviews, Volume 39 Lisa Sch?ler, Andreas Hemp, Wolfgang Zech, Hermann Behling The pollen, charcoal and sedimentological record from the Maundi crater, located at 2780 m elevation on the south-eastern slope of Mt Kilimanjaro, is one of the longest terrestrial records in equatorial East Africa, giving an interesting insight into the vegetation and climate dynamics back to the early last Glacial period. Our sediment record has a reliable chronology until 42 ka BP. An extrapolation of the age-depth model, as well as matching with other palaeo-records from tropical East Africa, suggest a total age of about 90 ka BP at the bottom of the record. During the last Glacial the distribution as well as the composition of the vegetation belts classified as colline savanna, submontane woodland, montane forest, ericaceous belt, and alpine vegetation changed. The early last Glacial is characterized by high amounts of Poaceae and Asteraceae pollen suggesting a climatically dry but stable phase. Based on the absence of pollen grains in samples deposited around 70 ka BP, we assume the occurrence of distinct drought periods. During the pre-LGM (Last Glacial Maximum) a higher taxa diversity of the ericaceous and montane zone is recorded and suggests a spread of forest and shrub vegetation, thus indicating a more humid period. The taxa diversity increases steadily during the recorded time span. The dece ...

Source: http://www.sciencedirect.com/science?_ob=GatewayURL&_origin=IRSSSEARCH&_method=citationSearch&_piikey=S0277379112000637&_version=1&md5=af3ecbc3dc137d4ef3b913e08fd80934

garbage pail kids st bonaventure ncaa tournament 2012 peyton manning 49ers andy pettitte tyler clementi kevin kolb