Search for dissertations about: "paleoecology"

Showing result 1 - 5 of 11 swedish dissertations containing the word paleoecology.

2. 1. Who ate whom? Paleoecology revealed through synchrotron microtomography of coprolites (fossil feces)

   Author : Martin Qvarnström; Živilė Žigaitė; Grzegorz Niedźwiedzki; Per Ahlberg; Karen Chin; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; coprolites; paleoecology; synchrotron microtomography; taphonomy; Triassic; Biologi; Biology;

   Abstract : Fossil droppings, known as coprolites, are being increasingly recognized as a valuable source of paleoecological information with special regard to diets, parasitism, and physiology of extinct taxa. Here, it is suggested that the excellent preservation and amount of inclusions in the coprolites (e.g. READ MORE

4. 2. Upper Cretaceous - Lower Tertiary deep-see benthic foraminifera from the Walvis Ridge, South Atlantic Ocean : taxonomy, paleobiogeography, and paleoecology

   Author : Joen G. V. Widmark; Uppsala universitet; []
   Keywords : NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : .... READ MORE

5. 3. Fire history in the hemiboreal and southern boreal zones of southern Sweden during 11000 years : Relationships with past vegetation composition and human activities and implications for biodiversity issues

   Author : Qiao-Yu Cui; Marie-José Gaillard; Boris Vannière; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fire history; land-use history; biodiversity; charcoal analysis; Landscape Reconstruction Algorithm LRA ; Holocene; Småland; Sweden; Paleoecology; Paleoekologi;

   Abstract : This thesis studies fire history over the last 11 000 years (Holocene) in central Småland, southern Sweden, on the basis of palaeoecological analyses of peat sequences from three small bogs (Notteryd, Stavsåkra and Storasjö). The main objective is to gain insights into the long-term relationships between fire, climate, human-impact, other environmental factors and the history of biodiversity in the study region. READ MORE

6. 4. Changing Landscapes : An Environmental History of Chibuene, Southern Mozambique

   Author : Anneli Ekblom; Paul Sinclair; Louis Scott; João Morais; Uppsala universitet; []
   Keywords : HUMANIORA; HUMANITIES; Archaeology; environmental history; archaeology; archaeobotany; paleoecology; vegetation history; pollen analysis; environmental management; environmental insecurity; resource utilisation; landscape; paleclimatology; trade; oral tradition; Mozambique; Vilanculos; Arkeologi; Archaeology subjects; Arkeologiämnen;

   Abstract : This thesis analyses the dynamics of environmental change and its embeddedness in the long term interactions of social history and rainfall variability through the building of an environmental history of the Chibuene locality, the coastal plain of southern Mozambique, 5 km south of the town Vilanculos, from 400 AD to present day. Land-use practices over time are discussed on the basis of vegetation and land-use history based pollen analysis, charcoal influx and diatom analysis. READ MORE

7. 5. Pollen productivity estimates and pollen-based reconstructions of Holocene vegetation cover in Northern and temperate China for climate modelling

   Author : Furong Li; Marie-José Gaillard; Mary E. Edwards; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; climate; pollen-vegetation relationships; relative pollen productivity; REVEALS model; anthropogenic land-cover change; Holocene; China; Paleoecology; Paleoekologi;

   Abstract : Model projections of future climate change require that coupled climate-vegetation models are developed and validated, i.e. these models should be able to reproduce past climate and vegetation change. Records of pollen deposited in lake bottoms and peat bogs can provide the information needed to validate these models. READ MORE