Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 264 for “"extinct"”.
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Sensitivity analysis with simulated data errors : synthetic extinct generations method
… develops the key components of the Synthetic Extinct Generations (SEG+delta) method in trying to answer research questions raised by Dorrington and Timeaus (2008) and in the process investigates the different sets of combinations of the key components of the SEG+delta method when applied to …
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Palaeoecology and population demographics of the extinct New Zealand moa (Aves: Dinornithiformes).
… of the worldwide Late Pleistocene megafaunal extinctions and their effects on modern ecosystems has been debated by the scientific community since the widespread discovery of megafaunal fossils in the nineteenth century. New Zealand is a good case study because of its geographical isolation, …
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Inferring Extinct Reptilian Response To Global Warming: Insights From Modern Stable Isotope Ratios
… through δ¹⁸O. I applied this framework to extinct lizards from an Early Eocene (Wa4) assemblage, a key time between two major global warming events (Paleocene-Eocene Thermal Maximum and Early Eocene Climatic Optimum). I identify xenosaurid and glyptosaurine squamates and alethinophidian …
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Pelvic Shape, Hip Abductor Mechanics and Locomotor Energetics in Extinct Hominins and Modern Humans
… effect of variation in pelvic breadth, in both extinct hominins and in modern humans, on hip abductor mechanics and locomotor energetics. The purpose of this dissertation was to test whether skeletal measures of pelvic width are correlated with relevant mechanical dimensions during locomotion, …
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A phylogenetic and taxonomic analysis of Parocnus serus, an extinct Holocene sloth from Haiti
Parocnus serus belongs to a unique radiation of extinct ground sloths endemic to the Antillean islands that was discovered in 1929, but, prior to this thesis, it had not been described in detail or had its phylogenetic and taxonomic relationships with other Antillean sloths extensively analyzed. …
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Mitochondrial DNA analysis of the evolution and genetic diversity of ancient and extinct bears.
… the genetic diversity and phylogeography of the extinct giant short-faced bear (Arctodus simus) in North America was undertaken (Chapter 6) to provide a comparison with the dynamic phylogeographic history of contemporaneous Beringian brown bears (Barnes et al., 2002). Additionally, the deeper …
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Systematics of Tridactyloidea (Orthoptera: Caelifera): Taxonomic revision of extinct taxa with comments on extant taxa
… tridactyloid-like fossils to the other known extinct and extant taxa. In this chapter descriptions of new species and a new family are provided. Chapter 6 describes the systematics of mud crickets, pygmy mole crickets and sandgropers. Here, I provide the first phylogeny for the superfamily …
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Functional morphology of mammalian sacra and caudal vertebrae : implications for tail loss and positional behaviors in extinct primates
… focused primarily on how the skeletal anatomy of extinct apes resembles that of living apes, in which these traits appear in conjunction. The remarkable diversity in tail lengths and positional behaviors exhibited by other mammals presents a valuable opportunity to employ the strength of the …
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Comparative Growth Rates of the Extinct Coral Montastraea nancyi: A Dominant Framework Builder in the Pleistocene (MIS 5e) Reefs of Curacao, Netherland Antilles
The extinct organ-pipe coral Montastraea nancyi Pandolfi was a major framework building coral in reefs of the Pleistocene interglacial highstand (MIS 5e, ~125 kya) in Curaçao as well as many other islands in the Caribbean. In Curaçao well-preserved columns of this species were sampled from two …
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Home from Away: Challenging Extinction Discourse through the Repatriation of Indigenous Beothuk Human Remains
… categorisation of certain Indigenous peoples as “extinct”, like the Beothuk of Newfoundland, Canada, has persisted. This discourse of Social Darwinism (where extinction takes place within parts of the human species rather than extinction of the species) has largely been applied uncritically and …
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Afterlives of extinction : the politics of display in the modern United States
Long extinct animals have a powerful hold on the American popular imagination. Dinosaurs, in particular, have been iconic and pervasive representatives of a planetary past for much of the twentieth century. While natural history museums are the most obvious spaces in which to encounter extinct …
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Mapování terénních reliktů zaniklé obce Palohlavy (VVP Ralsko) s využitím starých map a leteckého laserového skenování
Bachelor thesis deals with mapping of extinct villages using old maps, orthophotos and ALS. Specifically, it focuses on the village of Palohlavy in the former MTA Ralsko. At this location, the methodology of mapping extinct villages in this military area was tested. In the course of the work, the …
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A comparitive analysis of patterns of recent extinction in birds and mammals
Exploring past extinction patterns among taxa can inform us about risks facing currently threatened taxa if such extinctions have been non-random with respect to phylogeny and/or geographical patterns. This study analyses patterns of recent extinctions among birds and mammals in order to determine …
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Modelling the Impact of Climate Change on the Polar Bear Population in Western Hudson Bay
… several scenarios that result in polar bear extinction. When the impact of climate warming is low the population is predicted to die out in 300 years and for higher levels of impact the population can be extinct within 6. The second model is a system of continuous delay differential equations …
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A Re-Evaluation of the Pleistocene Hellbender, <em>Cryptobranchus guildayi</em>, and an Overview of <em>Cryptobranchus</em> Remains from Appalachian Caves.
… guildayi</em> is described as an extinct species of large salamander that is closely related to the hellbender, <em>Cryptobranchus alleganiensis</em>. The validity of this extinct taxon has been questioned, so an expanded osteological sample of modern hellbenders was used for …
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Phylogeny of <em>Panthera</em>, Including <em>P. atrox</em>, Based on Cranialmandibular Characters
… phylogenies have been proposed for extant and extinct members of the family Felidae. However, there remain several discrepancies, particularly within the genus <em>Panthera</em> and the position of <em>Panthera atrox</em>. Consequently, morphologic characters from the skull and dentary were …
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Celia's Ghosts: Liminality and Authenticity in De/extinction
What might it mean if extinction doesn’t last forever? This thesis grapples with that question through the case of the bucardo, an endemic subspecies of ibex from the Pyrenees, Capra pyrenaica pyrenaica. The bucardo has long been an emblematic feature of the Pyrenean landscape. Hunting drove it to …
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Library in the future
What is a library in the future? Will it be extinct? I don't believe so. In fact, library is never a space only for storing, neither in the past nor in the future. It provide quiet space. From this perspective, a library will never be extinct. However, it will merge into some other kinds of space. …
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Late Cenozoic palynological studies on Java
… sequence.Three taxa are shown to have become extinct in Java during the Plio-Pleistocene. These are Stenochlaena lamrifolia and S. areolaris, which become extinct at the end of the Pliocene, and Daczydium, which is thought to have become extinct during the Holocene.
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The seed thief
… on the trail of an African plant thought to be extinct on the continent, and believed to be growing in Brazil.
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