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Diet and the Dietary Niches of the Malagasy Subfossil Lemurs: An Analysis of Dental Microwear, Dental Proportions, and Grit AccumulationBender, Cristel 10 May 2017 (has links)
The purpose of this study is to identify the currently supported diet and dietary niches of the Malagasy subfossil and extant lemurs. The study was conducted partially in Tsinjoarivo and Antananarivo, Madagascar in the summer of 2013. Samples were analyzed and microwear determined that the dietary niches were aligned with current literature. Grit accumulation occurs more frequently in disturbed habitats and on lower canopy levels, which suggests that human manipulation of environment can impact the dental microwear of living primates.
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Functional morphology of mammalian sacra and caudal vertebrae : implications for tail loss and positional behaviors in extinct primatesRusso, Gabrielle Antoinette 25 September 2013 (has links)
All living hominoids are characterized by taillessness and adaptations to orthograde (upright) trunk posture. Accordingly, these features have importance for our understanding of ape origins, evolutionary relationships and positional behaviors. Despite extensive study of the hominoid postcranial skeleton, researchers continue to face difficulty identifying taillessness and orthogrady from fossil material. In part, difficulties persist because although the Miocene fossil record indicates that the evolution of tail loss and orthogrady was decoupled, previous research has 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 comparative method for testing functional hypotheses. The goal of this dissertation is to identify anatomical correlates of tail length and positional behaviors from sacral and caudal vertebral morphology among primates and other mammals in three studies. The first study examines the relationship between trabecular structure in the first sacral vertebra and positional behaviors (N= 78 primates). The second study quantifies aspects of internal (N=78 primates) and external (N= 472 mammals) sacral anatomy for correlates of relative tail length. The third study evaluates the functional morphology of caudal vertebrae among nonprehensile-tailed primates and other mammals that vary in relative tail length, offering additional insight into the anatomy associated with tail loss (N=333). The relationship between trabecular structure in the proximal sacrum and positional behaviors among living primates is somewhat unclear. Some trabecular parameters in the distal sacrum appear to have a relationship with tail length. Results support the functional links between previously and newly defined metrics from the external morphology of sacra and caudal vertebrae, and relative tail length, among primates and other mammals. Identified anatomical correlates from the extant primate sample are used to reconstruct the tail lengths of extinct primates. From the sacral data, Proconsul is reconstructed as tailless, Archaeolemur likely possessed a long tail, and Palaeopropithecus, Megaladapis and Epipliopithecus had short tails. From the caudal vertebrae data, Archaeolemur is reconstructed as possessing a long tail and Palaeopropithecus is reconstructed as having a short tail. / text
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The Importance of Curation: a Case-Study of the Subfossil Lemur Collection in the Museum of Evolution, Uppsala University / Kureringens betydelse: en fallstudie av Evolutionsmuseets paleontologiska samling av subfossila lemurerLindkvist, Maria January 2016 (has links)
In times when many natural history museums experience financial cuts, it is important to show why museums matter, what they can offer, and what they mean for both the public and the scientific society. The collections are the heart of the museum and they need to be well-managed in order to attract visitors (both researchers and public). Curation of collections is an essential part of the museum operation but it may be affected by understaffing and/or lack of physical space. If collections in need of curation (especially old collections) are left unattended, they may lose their scientific value. This project was done in order to show the importance of curation and its possibility to increase the value of a collection. The aim of this project was to show that a thoroughly explored and well curated collection becomes more accessible and interesting for internal and external sources and thereby the scientific and public value increases. This was conducted as a case-study of the collection of subfossil lemurs at the Museum of Evolution, Uppsala University. The collection was catalogued, its historical background was studied, and the old collection description was reviewed. The collection catalogue produced (Appendix D) has increased the availability and scientific value as it is now easier to get an overview of the collection, the catalogue include updated anatomical and taxonomical specimen descriptions, it is possible to administer loans on collection specimens, and the catalogue data can be published in accessible databases. The historical background (Appendices A and B) has shown that the collection has connections to other Swedish museum collections in Stockholm, Gothenburg, Malmö, and Lund. It is possible to use the information in the historical background in an eventual exhibition. This has increased the public value. However, it is possible to further increase both the availability and the value of the collection and some suggestions are given. / Denna uppsats handlar om kurering, alltså om omhändertagande av samlingar som finns på museer. Det finns många olika typer av museer, t.ex. naturvetenskapliga museer, historiska museer, konstmuseer, friluftsmuseer och hembygdsmuseer. Detta arbete är främst inriktat mot naturvetenskapliga museer med paleontologiska samlingar och varför det är viktigt att de finns och varför de ska tas om hand. Vidare visas hur en samling kan bli mer lätttillgänglig och hur dess värde kan höjas genom att noggrant kureras, katalogiseras och utvärderas. Projektet utfördes som en fallstudie av den samling av subfossila lemurer som finns på Evolutiosmuseet i Uppsala. I den sammanställning som gjordes av samlingens historiska bakgrund framkom det att folkskoleläraren Bertil Ljungqvist samlat in materialet under en expedition till Madagaskar mellan åren 1926 och 1930. På denna expedition samlades även zoologisk, botaniskt och kulturella föremål in. Dessa föremål finns idag utspridda på olika museer i Uppsala, Stockholm, Göteborg, Malmö och Lund. Det historiska bakgrund som sammanställdes i detta projekt kan användas av dessa museer om materialet ska ställas ut. Alla förmål i samlingen av subfossila lemur har fått uppdaterade beskrivningar i den nyskapade katalogen. Katalogen gör det möjligt att på ett enkelt sätt få en överblick av samlingen, det är nu även möjligt att låna föremål och samlingen är ett steg närmare att publiseras i en databas. I och med detta projekt har samlingen blivit mer tillgänglig, den är lättare att använda i olika sammanhang och därmed kan även sägas att värdet av samlingen har ökat. Dock finns det stora möjligheter att ytterliggare öka både värdet och tillgängligheten.
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