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Dissertations / Theses on the topic 'Palaeoecology'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Witton, Mark P. "The palaeoecology and diversity of pterosaurs." Thesis, University of Portsmouth, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496607.

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The taxonomy and locomotory methods of pterosaurs have been extensively scrutinised for as long as pterosaurs themselves have been known, but comparatively little research has been conducted into their lifestyles and habits. Pterosaurs have largely been interpreted as Mesozoic equivalents of modem marine birds, principally foraging through flight-based methods of dip- or skim-feeding. Here, several lines of enquiry suggest that pterosaurs were considerably more ;ologically diverse that previously anticipated.

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2

Macpherson, Allan J. "Ecological resilience at semi-arid and temperate boundaries of the Mediterranean-type Fynbos Biome, South Africa, during the Holocene." Doctoral thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/25357.

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Mediterranean-type ecosystems are amongst the most vulnerable to global change. Threats from desertification are projected due to rapid expansion of adjacent semiarid systems. Changes in fire frequency and intensity can alter ecosystem composition and structure, and potentially facilitate transitions between alternative stable states. Given the outstanding biodiversity of the Mediterranean-type fynbos biome in the Greater Cape Floristic Region (GCFR) of South Africa, understanding of the longterm impacts of global change are particularly important. In this study, palaeoecological data are used

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3

Saunders, Kate Marie. "Silurian dendroid graptolites : taxonomy, palaeoecology and biostratigraphy." Thesis, University of Portsmouth, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343388.

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4

Price, Gilbert J. "Pleistocene palaeoecology of the eastern Darling Downs." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16271/1/Gilbert_Price_Thesis.pdf.

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Several late Pleistocene fossil localities in the Kings Creek catchment, Darling Downs, southeastern Queensland, Australia, were examined in detail to establish an accurate, dated palaeoecological record for the region, and to test human versus climate change megafauna extinction hypotheses. Accelerator Mass Spectrometry (AMS 14C) and U/Th dating confirm that the deposits are late Pleistocene in age, but the dates obtained from the two methods are not in agreement. Fluvial depositional accumulation processes in the catchment reflect both high-energy channel and low-energy episodic overbank dep

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5

Price, Gilbert J. "Pleistocene palaeoecology of the eastern Darling Downs." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16271/.

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Several late Pleistocene fossil localities in the Kings Creek catchment, Darling Downs, southeastern Queensland, Australia, were examined in detail to establish an accurate, dated palaeoecological record for the region, and to test human versus climate change megafauna extinction hypotheses. Accelerator Mass Spectrometry (AMS 14C) and U/Th dating confirm that the deposits are late Pleistocene in age, but the dates obtained from the two methods are not in agreement. Fluvial depositional accumulation processes in the catchment reflect both high-energy channel and low-energy episodic overbank dep

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6

Sexton, Philip. "Foraminiferal taphonomy, palaeoecology and palaeoceanography of the Eocene." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416473.

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7

Hart, Sean Fraser. "Palaeoecology of Lower Cambrian and Lower Ordovician reefs." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361669.

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8

Emson, D. "The ecology and palaeoecology of diatom-duckweed relationships." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1462713/.

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This thesis focuses on the ecology and palaeoecology of diatom-duckweed relationships and utilises a combined experimental, ecological and palaeoecological approach. In particular, the study sought to determine the potential of the epiphytic diatom Lemnicola hungarica to be utilised as a proxy indicator of past dominance of duckweed (Lemna) in small ponds. To this end, contemporary sampling of epiphytic diatom assemblages from a variety of macrophytes (including multiple samples of free-floating plants) were collected from around the world and analysed for diatom epiphytes. In this study, even

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9

Glenwright, Thomas Lane. "Diatom-based palaeoecology of Kowloon Bay, Hong Kong." Thesis, Click to view the E-thesis via HKUTO, 2000. http://sunzi.lib.hku.hk/hkuto/record/B42575576.

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10

Glenwright, T. Lane. "Diatom-based palaeoecology of Kowloon Bay, Hong Kong /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22032423.

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11

Parker, Adrian Glenn. "Late quaternary environmental change in the Upper Thames Basin, central-southern England." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320933.

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12

Collins, Philip E. F. "Floodplain environmental change since the last glacial maximum in the Lower Kennet Valley, South-Central England." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294864.

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The lower Kennet Valley terraces reflect fluctuations in river regime through the Quaternary. Sediments and valley floor geomorphology provide a detailed record of Devensian and Flandrian fluvial behaviour and environmental change. Two major surfaces occur, the floodplain and the Beenham Grange Terrace (2 - 3m above the floodplain). Levelling showed that the terrace south of the river, underlain by deposits of two Early Devensian interstadials, was part of the Beenham Grange level, and not the Thatcham Terrace as previously proposed. The fluvial succession consisted of the subflood plain Midgh

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13

Gearey, Benjamin Richard. "Human-environmental relations on Bodmin Moor during the Holocene." Thesis, University of Plymouth, 1996. http://hdl.handle.net/10026.1/511.

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14

Plewes, Caryl Robin. "Ichnotaxonomic studies of Jurassic endoliths." Thesis, Aberystwyth University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339375.

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15

Lumley, Susanne Helen. "Late Quaternary vegetational and environmental history of the Taitao Peninsula, Chile." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320035.

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16

Al-Sayigh, Abdul Razak Siddiq. "Lower Tertiary Foraminifera from south east Oman." Thesis, Aberystwyth University, 1999. http://hdl.handle.net/2160/1a8d5b93-df4b-412e-aecb-38c02de78e03.

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Over 250 samples were collected over three field seasons from the SE Oman Mountains. Fortyone species of planktonic Foraminifera (belonging to 7 genera) and twenty-eight species of larger benthonic Foraminifera, (belonging to 13 genera) are figured (both by SEM and optical photography) from the Wadi Musawa and Wadi Suq sections. Nine planktonic foraminiferal zones are formally recognised between the Upper Palaeocene(P 4) and upper Middle Eocene (P14). The known stratigraphic distribution of these species was used to recognise the zones P 5, P8-P9 as equivalentt o standard zones of Blow, 1969,1

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17

Day, Susan Petronella. "History and palaeoecology of woodlands in the Oxford region." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257822.

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18

Davidson, Thomas Alexander. "Zooplankton ecology and palaeoecology of nutrient enriched shallow lakes." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1444372/.

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This study sought to determine the potential of sedimentary cladoceran assemblages for inferring changes in shallow lake ecological structure and function. The first stage of the study aimed to isolate and quantify the main structuring forces of the contemporary zooplankton community. Zooplankton populations were sampled from 39 mesotrophic to hyper-eutrophic shallow lakes (<3 m average depth) in the U.K. and Denmark. Additionally, a suite of environmental variables, including: fish, macrophytes, algal crop, nutrient concentrations and water transparency were analysed. A variety of numerical t

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19

Grant, Michael James. "The palaeoecology of human impact in the New Forest." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427406.

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20

McMullen, John Andrew. "Palaeoecology and the conservation management of lowland raised bogs." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310749.

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21

Johnson, Kate. "Late quaternary palaeoecology and phylogenetics in southern South America." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675928.

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Vegetation in South America has been impacted by multiple Pleistocene glacial events, climatic changes, volcanic eruptions, fire and human settlement on different temporal and spatial scales. Vegetation dynamics have been inferred from previous pollen studies, but some areas remain vastly understudied, despite the presence of suitable palaeoecological sites. Impenetrable volcanic tephra layers often restrict the ages of these sediments, limiting the age of palaeoecological studies. Combining palaeoecology with phylogenetics increases our understanding of the timing and spatial changes of veget

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22

Ballantyne, Fiona. "Palaeoecology and vegetation dynamics in the Cederberg wilderness area." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/6227.

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The Cederberg Wilderness Area, in the Cape Floristic Region, South Africa, contains over 2000 plant species, 280 of which are endemic. The area has been subject to various forms of land use for millennia ranging from hunter-gatherers, herders, and farmers to visitors today. This study used palaeoecological techniques to investigate the impacts of past land use, specifically the transition from hunter-gathering to farming and herding in order to provide a baseline for current wilderness management. A sediment core was extracted from a wetland adjacent to the De Rif farmstead, analysed for fossi

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23

Davies, Fay Mary. "Holocene palaeoenvironmental studies in the Oban region, western Scotland." Thesis, University of Newcastle upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337378.

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24

Williams, Ann Cerys. "Palaeoecological and palaeoenvironmental variations in the Callovian, Oxfordian and Kimmeridgian (Jurassic) of Britain." Thesis, University of Leicester, 1988. http://hdl.handle.net/2381/34984.

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Carbon and oxygen stable isotope analyses have been performed on well preserved calcareous fossils from Callovian, Oxfordian and Kimmeridgian (Jurassic) mudrock facies of Britain. Assemblages of ammonites, bivalves and belemnites have been sampled from the Lower Oxford Clay of the English Midlands, the Kimmeridge Clay of Wiltshire and the Dorset coast, and the Staffin Shale Formation of Skye. In this way it was hoped to cover a wide stratigraphic and geographic range. Carbon isotope stratigraphy reveals a positive excursion in the Callovian, which is interpreted as an oceanic anoxic event. On

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25

Gardner, Neville P. "Small-scale distribution of two modern land snail faunas : islands and boundaries of relevance to the interpretation of subfossil assemblages." Thesis, Cardiff University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315293.

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26

Barnes, Ian. "The molecular identification of goose species in archaeozoological assemblages." Thesis, University of York, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298376.

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27

Williams, James Philip. "Small mammal deposits in archaeology : a taphonomic investigation of Tyto alba (barn owl) nesting and roosting sites." Thesis, University of Sheffield, 2001. http://etheses.whiterose.ac.uk/10250/.

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Small mammals have often been utilised as indicators of past environments. Before palaeoecological assessments can be made, investigations into the origin and mode of deposition are carried out. Many small mammal accumulations are predator-derived, and in order to take account of predatory bias in these deposits, it is necessary to identify the predator. Several methodologies have catalogued patterns of bone modification from dietary waste of modern predators, for comparison with taphonomic features found on archaeological assemblages of small mammals. The majority of this research has concent

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28

Adams, Terence Gilbert. "The late holocene vegetation history of Lake Farm, South Eastern Cape Province, South Africa." Master's thesis, University of Cape Town, 1994. http://hdl.handle.net/11427/14715.

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Bibliography: p. 155-175.<br>Palynological analysis of organic sediments from a freshwater lake near Port Elizabeth (34Â°S,25Â°30'E) has provided a high- resolution vegetation history of the area for the last 2200 years. Detailed identification and counting of the fossil pollen resulted in the generation of a pollen diagram. Changing frequencies in fossil pollen over time are represented, and inferences are made regarding environmental conditions which influenced the vegetation. A detailed narrative of vegetation history in response to environmental change is presented, and this is compared to

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29

Foster, William J. "Palaeoecology of the late Permian mass extinction and subsequent recovery." Thesis, University of Plymouth, 2015. http://hdl.handle.net/10026.1/5467.

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Climate warming during the latest Permian is associated with the most severe mass extinction event of the Phanerozoic, and the expansion of hypoxic and anoxic conditions into shallow shelf settings. Our understanding of the magnitude, pattern and duration of the extinction event and subsequent recovery remains equivocal. Evidence suggests that the action of waves provided an oxygenated refuge, i.e. ‘habitable zone’, above wave base that may be limited to high latitudes, in association with a faster pace of recovery. In addition, advanced recovery faunas have been documented from the Induan and

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30

Carthew, Richard. "Palaeoecology of encrusting faunas from the Silurian of Gotland, Sweden." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279915.

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31

Wooller, Matthew John. "The palaeoecology of Mount Kenya: evidence from grass-cuticle analysis." Thesis, Swansea University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.575147.

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32

Rosen, D. Z. "Recent palaeoecology and industrial impact on the South Wales landscape." Thesis, Swansea University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638713.

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The increasing extent and diversity of industrial activity throughout South Wales over the past 500 years may have profoundly affected the vegetation. However, few radiometrically-dated pollen diagrams relating to this period have been produced from South Wales, and the precise nature and causes of any ecological change remain uncertain. This study aims to elucidate past vegetation change by constructing radiometrically-dated pollen diagrams from four sites in South Wales, to reconstruct past industrial activity around the study sites using palaeoenvironmental techniques (geochemical, magnetic

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33

Virah-Sawmy, Malika. "Using Palaeoecology to address mining - Conservation Conflicts in Southeast Madagascar." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508661.

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34

Coombes, Paul Melor Vernon. "The palaeoecology of recent human impact in the Lake District." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396760.

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35

Botting, Joseph Peter. "Palaeoecology and systematics of Ordovician biotas from Welsh volcaniclastic deposits." Thesis, University of Birmingham, 2000. http://etheses.bham.ac.uk//id/eprint/5409/.

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The effects of explosive volcanism on local ecosystems are investigated in Middle Ordovician siliciclastics from the Welsh Basin. Bulk sampling analysis has provided quantitative data, regarding population proportions and abundance, following ash deposition in nearshore, shallow dysaerobic basin, and deeper basinal facies. Consistent ecological effects include the destruction of small sessile benthos by rapid burial, followed by re-establishment of mobile and opportunistic taxa, and a bimodal, planktic-benthic bloom in dysaerobic facies. The results are explained through vertical circulation i

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36

Mõtus, Mari-Ann. "Silurian (llandovery-wenlock) tabulate corals of Baltoscandia : taxonomy, palaeoecology, distribution /." Tartu: Tartu University Press, 2005. http://dspace.utlib.ee/dspace/bitstream/10062/1292/5/m6tus.pdf.

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37

Martinez, Sandrine. "Palaeoecology of the Mount Etna bat fauna, coastal Eastern Queensland." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/40979/1/Sandrine_Martinez_Thesis.pdf.

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Global warming is already threatening many animal and plant communities worldwide, however, the effect of climate change on bat populations is poorly known. Understanding the factors influencing the survival of bats is crucial to their conservation, and this cannot be achieved solely by modern ecological studies. Palaeoecological investigations provide a perspective over a much longer temporal scale, allowing the understanding of the dynamic patterns that shaped the distribution of modern taxa. In this study twelve microchiropteran fossil assemblages from Mount Etna, central-eastern Queensland

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38

Fuller, Janice L. "Holocene forest dynamics in southern Ontario, Canada." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319318.

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39

Aalbersberg, Gerard. "The alluvial fringes of the Somerset Levels." Thesis, University of Exeter, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297642.

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Using core lithology and palaeoecological analyses, the vegetational and landscape development and local hydrological conditions since c. 6000 BP in two areas of the Somerset Levels has been studied. Focusing on the former characteristics of the river Brue, the floodplain upstream from Glastonbury and the area near Panborough Gap in Wedmore Ridge were investigated. In the latter area a distinct palaeochannel thought to be the prehistoric course of the Brue is present. Both areas show a similar development with saltmarsh and lagoonal environments until 6000 BP, followed by a prolonged period of

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40

Young, Timothy Peter. "The stratigraphy of the upper Ordovician of central Portugal." Thesis, University of Sheffield, 1985. http://etheses.whiterose.ac.uk/6043/.

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The project has involved the revision of the stratigraphy of the upper part of the Ordovician succession in central Portugal. Using evidence derived principally from the study of measured sections, with some limited geological mapping, this thesis first considers a new lithostratigraphy of the upper Ordovician deposits. The scheme presented includes four groups, twelve formations and eleven members. Most of the elements of the scheme are described here for the first time. The sedimentology of the deposits has been studied to allow an interpretation of the depositional environment. The history

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41

Pendred, Virginia A. "A palaeosalinity analysis of the Solent Group (Eocene-Oligocene), the Hampshire Basin, UK." Thesis, University of Portsmouth, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323282.

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42

Moghadam, Hossein Vaziri. "Integrated stratigraphy of the Cenomanian in the Anglo-Paris Basin." Thesis, University of Liverpool, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366304.

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43

Townsend, Marisia Jean. "The palaeogeography of the Lower Cretaceous Aysen Basin of southern Chile." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246282.

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44

Parsons, Derek Graham. "Foraminferid palaeoecology of late Cretaceous phosphogenic cycles, South West Atlas, Morocco." Thesis, University of Hull, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327836.

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45

Pitchford, Andrew John. "The stratigraphy, palaeontology, and palaeoecology of the Campanian Chalk of Norfolk." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291739.

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46

McKeever, Patrick J. "Studies on the sedimentology and palaeoecology of the Permian of Scotland." Thesis, Queen's University Belfast, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335431.

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47

Wimble, G. T. "The palaeoecology of the lowland coastal raised mires of South Cumbria." Thesis, Bucks New University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374830.

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48

Fielding, Sarah Elizabeth. "The taxonomy, taphonomy and palaeoecology of Late Jurassic testudines from Europe." Thesis, University of Portsmouth, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490240.

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Testudine remains are exceptionally scarce in the Middle Jurassic in Western Europe. However, in the Upper Jurassic testudines are represented by two pleurodiran families, the Notoemydidae and the Platychelidae, and cryptodires: the paracryptodiran Pleurosternidae (known only from fragmentary remains from the continent and a single taxon from the Portland Limestone Formation), and the eucryptodiran families Eurysternidae and the Plesiochelyidae. The sudden appearance of these families in marine deposits of the European Upper Jurassic suggests that they constitute one of the earliest marine rad

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49

Evans, F. J. (Fiona Jocelyn). "Taxonomy, palaeoecology and palaeobiogeography of some palaeozoic fish of Southern Gondwana." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50460.

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Thesis (PhD)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: The fossiliferous Waaipoort Formation (Witteberg Group, Cape Supergroup), Ganikobis Formation (Dwyka Group, Karoo Supergroup) and Whitehill Formation (Ecca Group, Karoo Supergroup) span a protracted period interrupted by a +-45Ma glacial event. This Late Carboniferous glacial event resulted in a prolonged hiatus in sedimentation as well as significant erosion in many southern continents of Gondwana. This study demonstrates how the glacial episode affected faunal composition and changes in palaeoecology in southern Gon

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50

Braley, Sharon Mary. "The sedimentology, palaeoecology and stratigraphy of Cretaceous rocks in N.W. Scotland." Thesis, University of Plymouth, 1990. http://hdl.handle.net/10026.1/625.

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Sediments of Cretaceous age in N.W. Scotland outcrop in small, often isolated exposures throughout the Inner Hebrides and Morvern, and have been dealt with cursorily in most previous work on the Cretaceous rocks of Britain. The aims of this study were (i)to propose a formal integrated stratigraphic scheme for the Cretaceous strata of N.W. Scotland and (ii)to model the development of the Inner Hebrides Basin (where these strata outcrop) during the Cretaceous Period. Detailed field observations, macro- and micropalaeontology (including palynology), sedimentology and structural data were integrat

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