Search for dissertations about: "Late Holocene"

Showing result 11 - 15 of 57 swedish dissertations containing the words Late Holocene.

2. 11. Late quaternary equatorial glacier fluctuations

   Author : Gunhild Rosqvist; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; naturgeografi; Physical Geography;

   Abstract : On several occasions during the Quaternary, climate permitted equatorial glaciers to advance significantly. In East Africa, where the highest mountains of the African continent are located, evidence of three pre-Weichselian glaciations on Kilimanjaro, and two on Mount Kenya and Ruwenzori were recognized. READ MORE

4. 12. Palaeoenvironment in North-Western Romania during the last 15 000 years

   Author : Angelica Feurdean; Barbara Wohlfarth; Ann-Marie Robertsson; Leif Björkman; Iustinian Petrescu; Katherine J Willis; Stockholms universitet; []
   Keywords : Northwest Romania; Gutaiului Mountains; pollenstratigraphy; macrofossil remains; Lateglacial; Holocene; tree refugia; tree dynamics; past climate; human influence;

   Abstract : The objectives of this thesis are to establish a chronological framework for environmental changes during the last 15,000 years in northwest Romania, to reconstruct the vegetation development, and to evaluate the underlying processes for forest dynamics. Furthermore, an overview of earlier and ongoing pollenstratigraphic work in Romania is provided. READ MORE

5. 13. Treeline dynamics in short and long term perspectives : observational and historical evidence from the southern Swedish Scandes

   Author : Lisa Öberg; Bengt-Gunnar Jonsson; Leif Kullman; Ulf Segerström; Mittuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Betula pubescens ssp. czerepanovii; Picea abies; Pinus sylvestris; climate change; monitoring; treeline advance; clones; megafossils; immigration; Holocene; cryptic refugia; Swedish Scandes; Terrestrial ecology; Terrestrisk ekologi;

   Abstract : Against the background of past, recent and future climate change, the present thesis addresses elevational shifts of alpine treelines in the Swedish Scandes. By definition, treeline refers to the elevation (m a.s.l. READ MORE

6. 14. Archaeological Perspectives on Risk and Community Resilience in the Baringo Lowlands, Kenya

   Author : Nik Petek; Paul Lane; Matthew Davies; Uppsala universitet; []
   Keywords : HUMANIORA; HUMANITIES; Risk spiral; community resilience; archaeology; pastoralism; Baringo; Kenya; history; Ilchamus; Njemps; spatial statistics; East Africa; Holocene; environment; environmental degradation; colonialism; ethnogenesis; community conformity; survey; remote sensing; habitation; subsistence; Archaeology; Arkeologi;

   Abstract : This historical ecological research provides a detailed insight into the risk avoidance and resilience building strategies in the Lake Baringo basin in Kenya through the lens of archaeology. It explores how changes in subsistence, habitation, and landscape shaped each other and how that affected the available strategies of risk avoidance and resilience building. READ MORE

7. 15. Infrared spectroscopy as a tool to reconstruct past lake-ecosystem changes : Method development and application in lake-sediment studies

   Author : Carsten Meyer-Jacob; Richard Bindler; Hendrik Vogel; Jan Karlsson; John F. Boyle; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fourier transform infrared spectroscopy; visible-near infrared spectroscopy; PLS regression; biogenic silica; climate change; carbon cycling; lake-water quality; geochemistry; paleolimnology; Holocene; Lake El’gygytgyn; Torneträsk;

   Abstract : Natural archives such as lake sediments allow us to assess contemporary ecosystem responses to climate and environmental changes in a long-term context beyond the few decades to at most few centuries covered by monitoring or historical data. To achieve a comprehensive view of the changes preserved in sediment records, multi-proxy studies – ideally in high resolution – are necessary. READ MORE