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Tesis sobre el tema "Biogeography"

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1

Billing, Ian Michael. "British carboniferous Bryozoan biogeography." Thesis, Durham University, 1991. http://etheses.dur.ac.uk/6289/.

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The geographical and temporal distributions of the British Carboniferous Bryozoa have been determined, incorporating data from fieldwork (including localities in Scotland, North England, North Wales, South Wales, and Avon), museum collections, and literature searches. A total of 126 species has been recognised, though further work may reveal some synonymies within this list. The forty species collected during the fieldwork have been identified by reference to previous taxonomic work; most species can be assigned to established taxonomic descriptions, but two new species, Rhombopora bancrofti a
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2

ergezer, mehmet. "OPPOSITIONAL BIOGEOGRAPHY-BASED OPTIMIZATION." Cleveland State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=csu1392301939.

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3

Alvarado, Barrantes Ricardo. "Statistical models in biogeography." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423067.

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We concentrate on the statistical methods used in Biogeography for modelling the spatial distribution of bird species. Due to the difficulty of specifying a joint multivariate spatial covariance structure in environmental processes, we factor such a joint distribution into a series of conditional models linked together in a hierarchical framework. We have a process that corresponds to an unobservable map with the actual information about a bird species, and the data correspond to the observations that are connected to that process. Markov chain Monte Carlo (MCMC) simulation approaches are used
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4

Herbert, Jane. "Systematics and biogeography of Myricaceae." Thesis, University of St Andrews, 2005. http://hdl.handle.net/10023/2687.

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Two molecular phylogenetic studies were undertaken to examine relationships within Myricaceae. Analyses of DNA sequences of the plastid rbcL gene, trnL-Fregion and nuclear ITS region showed the family to be monophyletic. In all analyses Canacomyrica, a monotypic genus endemic to New Caledonian that bears several distinctive features such as staminodes in the female flowers, fell into a well- supported clade sister to the rest of Myricaceae. Phylogenetic analyses of ITS and trnL-F sequence data, representing all genera and subgeneric groups, were undertaken using maximum parsimony and Bayesian
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5

Gelang, Magnus. "Babblers, Biogeography and Bayesian Reasoning." Doctoral thesis, Stockholms universitet, Zoologiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71321.

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In this thesis, I try to proceed one step further towards an understanding of the biogeographic processes forming the distribution patterns of organisms that we see today. Babblers and warblers are diverse groups of passerines that are phylogenetically intermixed with other groups in the superfamily Sylvioidea. First, the gross phylogeny of the babblers and associated groups was estimated. Five major lineages of a well-supported monophyletic babbler radiation were recovered, and we proposed a new classification at family and subfamily level. Further, the genus Pnoepyga was excluded from Timali
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6

McGuire, Avery Faye. "Phylogeny and biogeography of Erica /." Electronic thesis, 2003. http://etd.wfu.edu/theses/available/etd-12162003-111147/.

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7

Proud, Roland Hudson. "A biogeography of the mesopelagic community." Thesis, University of St Andrews, 2016. http://hdl.handle.net/10023/12025.

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There are a large number of research vessels and fishing vessels equipped with echosounders plying the world ocean, making continual observations of the ocean interior. Developing data collation programmes (e.g. Integrated Marine Observing System) and automated, repeatable analyses techniques enable the upper c. 1,200 meters of the world ocean to be sampled routinely, and for their characteristic deep scattering layers (DSLs) to be compared. Deep scattering layers are comprised of zooplankton (e.g. euphausiids) and fish, particularly myctophids or lantern fish, and comprise the majority of sub
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8

Goldberg, Emma Elizabeth. "Macroevolutionary and coevolutionary models in biogeography." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3255000.

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Thesis (Ph. D.)--University of California, San Diego, 2007.<br>Title from first page of PDF file (viewed May 8, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
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9

Smith, Fraser D. M. "Case studies in biogeography and extinction." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334231.

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10

Rosser, N. S. "Speciation and biogeography of heliconiine butterflies." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1386054/.

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In this thesis I investigate the speciation and biogeography of neotropical heliconiine butterflies (Lepidoptera: Nymphalidae: Heliconiina). In Chapter 2, I present a large database of locality records for heliconiine species and subspecies, and use these data to test evolutionary and biogeographic hypotheses for their diversification. I find evidence that geographical gradients in species richness are driven at least in part by variation in speciation and/or extinction rates, rather than via evolutionary age or niche conservatism alone. The eastern Andes are characterised by high species rich
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11

Benfield, John Nettleton. "The systematics and biogeography of Araucariaceae." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294513.

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12

Valles, Carlos Mariano Alvez. "Biogeography and conservation of Amazon palms." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/6607.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2018-03-27T19:45:32Z No. of bitstreams: 1 carlosmarianoalvesvalles.pdf: 5972976 bytes, checksum: 908806a8077c5751983d6b9690d566cd (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2018-04-09T19:22:27Z (GMT) No. of bitstreams: 1 carlosmarianoalvesvalles.pdf: 5972976 bytes, checksum: 908806a8077c5751983d6b9690d566cd (MD5)<br>Made available in DSpace on 2018-04-09T19:22:27Z (GMT). No. of bitstreams: 1 carlosmarianoalvesvalles.pdf: 5972976 bytes, checksum: 908806a8077c5751983d6b9690d566cd (MD5) Prev
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13

Guillet, Alfredo. "Biogeography and ecology of African waterbirds." Doctoral thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/21812.

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Bibliography: pages 192-208.<br>Patterns of distribution and diversity for African waterbirds are investigated at the continental, sub-continental, ecosystem and species levels. The focal species is the Great White Pelican Pelecanus onocrotalus, one of South Africa's 'Red Data' bird species. The 'focal' ecosystem is Rondevlei Bird Sanctuary (34°'04'S, 18°30'E), one of the few conserved areas in Africa set aside especially for waterbirds. Biogeographically, waterbirds partition Africa much more coarsely (into 8 vs 18 avifaunal zones) than do non-aquatic birds. Waterbird species diversity (numbe
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14

Sang, Tao. "Phylogeny and Biogeography of Paeonia (Paeoniaceae) /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487928649988039.

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15

Laumann, Katie May. "Sturgeon (Acipenseridae) phylogeny, biogeography, & ontogeny." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1539616731.

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Thought of as "ancient" fishes, 25 broadly recognized extant sturgeon species are classified in four genera (Acipenser, Huso, Pseudoscaphirhynchus, and Scaphirhynchus). Molecular and morphological analyses have led to broad but conflicting changes to sturgeon phylogeny. For example, the position of Scaphirhynchus among other sturgeons had been contentious, and various sets of sturgeon species have been proposed to make up the subfamily Husinae. Here, a molecular phylogeny of sturgeons, based on the full mitogenome, is presented. In this phylogeny, Scaphirhynchus is recovered with strong supp
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16

Kiel, Steffen. "Taxonomy and biogeography of late Cretaceous gastropoda." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964103850.

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17

Rogers, Stephanie F. "The Biogeography of the Strait of Florida." NSUWorks, 2008. http://nsuworks.nova.edu/occ_stuetd/107.

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The Strait of Florida is a crescent – shaped channel, 180 km long that separates Florida from the Bahama Platform and Cuba and connects the Gulf of Mexico with the Atlantic Ocean. The Strait was investigated by four major dredging and trawling efforts: the U.S. Coast and Geodetic Survey Steamer Blake in the 1870s; the U.S. Fish Commission Steamer Albatross in the 1880’s; the Woods Hole Oceanographic Institute’s R/V Atlantis in 1938 and 1939, and the University of Miami’s R/V Gerda and Pillsbury from 1962 to 1971. This study uses multivariate statistics to analyze qualitative published and muse
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18

Edwards, Danielle L. "Biogeography and speciation of southwestern Australian frogs." University of Western Australia. School of Animal Biology, 2007. http://theses.library.uwa.edu.au/adt-WU2008.0058.

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[Truncated abstract] Southwestern Australia is a global biodiversity hotspot. The region contains a high number of endemic species, ranging from Gondwanan relicts to more recently evolved plant and animal species. Biogeographic models developed primarily for plants suggest a prominent role of Quaternary climatic fluctuations in the rampant speciation of endemic plants. Those models were not based on explicit spatial analysis of genetic structure, did not estimate divergence dates and may be a poor predictor of patterns in endemic vertebrates. Myobatrachid frogs have featured heavily in the lim
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19

Kaiser, Hinrich. "Systematics and biogeography of eastern Caribbean frogs." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41632.

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This study examines the systematics and biogeography of frogs in the Eastern Caribbean, a biogeographical province consisting of the Lesser Antilles, Trinidad, and Tobago. A comprehensive collection of specimens was subjected to an analysis incorporating morphometric, osteological, and biochemical approaches. An investigation of $ alpha$-level taxonomy revealed the presence of four additional taxa: Colostethus chalcopis sp. nov. on Martinique, Eleutherodactylus amplinympha sp. nov. on Dominica, E. euphronides comb. nov. on Grenada, and E. shrevei comb. nov. on St. Vincent. Based on species dis
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20

Seears, Heidi. "Biogeography and phylogenetics of the planktonic foraminifera." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/11879/.

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The planktonic foraminifera are a highly abundant and diverse group of marine pelagic protists that are ubiquitously distributed throughout the worlds’ oceans. These unicellular eukaryotes are encased in a calcareous (CaCO3) shell or ‘test’, the morphology of which is used to identify individual ‘morphospecies’. The foraminifera have an exceptional fossil record, spanning over 180 million years, and as microfossils provide a highly successful paleoproxy for dating sedimentary rocks and archiving past climate. Molecular studies, using the small subunit (SSU) ribosomal (r) RNA gene are used here
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21

James, Phillip. "Towards the biogeography of British soil microorganisms." Thesis, University of Newcastle Upon Tyne, 2013. http://hdl.handle.net/10443/1840.

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Soils are complex and highly variable ecosystems within which a multitude of diverse microbial populations can be found. Here the effects of co-correlating environmental variables and spatial separation upon the diversity and community structure of two microbial kingdoms is investigated using several molecular based community assessment methods. Using an optimised nucleic acid extraction procedure, suitable for landscape scale surveys of microbial biogeography, large scale bacterial and fungal targeted terminal restriction fragment length polymorphism (t-RFLP) analysis was undertaken on soils
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22

Nitz, Barbara. "Integrative systematics and biogeography of Limax (Gastropoda:Stylommatophora)." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-175895.

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23

Tun-Garrido, Juan. "Biogeography and cladistic relationships of Psittacanthus (Loranthaceae)." Thesis, University of Reading, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437141.

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24

Thompson, Peter N. "The biogeography and systematics of Coriaria (Coriariaceae)." Thesis, University of Leicester, 1996. http://hdl.handle.net/2381/35358.

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The family Coriariaceae contains the single genus Coriaria. Seemingly isolated from all other families and genera the genus has a unique disjunct distribution covering five separate areas in the northern and southern hemispheres. Possible explanations for this distribution have been explored by studying evolutionary relationships, using cladistic analysis, breeding systems, taxonomy and the fossil record. Characters used in the cladistic analysis have been both phenotypic (morphological, anatomical, phytochemical and cytological) and molecular (sequences of the tRNALeu1 intron of the chloropla
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25

Bystriakova, Nadia. "The ecology and biogeography of tree ferns." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612141.

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26

Chatterjee, Helen Jane. "Phylogeny and biogeography of gibbons, genus Hylobates." Thesis, University College London (University of London), 2001. http://discovery.ucl.ac.uk/48140/.

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27

Hackel, Jan. "Molecular biogeography of grasses and tropical grasslands." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30222.

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Les graminées (Poaceae) sont une très grande famille cosmopolite de plantes. Dans la thèse présentée ici, j'ai utilisé des méthodes moléculaires pour analyser leur histoire biogéographique. Le premier chapitre s'intéresse aux déterminants de la dispersion dans la sous-tribu tempérée Loliinae. La distance apparaît comme le facteur dominant. Le deuxième chapitre présente une analyse des origines des graminées de Madagascar. Les résultats montrent deux grandes radiations in situ de graminées C3 et une immigration répétée de graminées C4, soutenant l'existence de savanes malgaches avant la présenc
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28

De, Klerk Helen Margaret. "Biogeography and conservation of terrestrial afrotropical birds." Doctoral thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/17318.

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Includes bibliography.<br>This study aimed to describe patterns of distribution in terrestrial Afrotropical birds, to investigate the causes of these patterns, and examine how aspects of distributional patterns may be used to prioritize local regions for conservation attention. Presence-only data were gathered and digitized at one-degree square scale for 1686 terrestrial bird species that breed on or regularly visit sub-Saharan Africa as non-breeding migrants. Biogeographical analysis of the 1437 species that are globally restricted to sub-Saharan Africa (Afrotropical endemics) revealed a suit
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29

Shah, Arpit. "DISTRIBUTED BIOGEOGRAPHY BASED OPTIMIZATION FOR MOBILE ROBOTS." Cleveland State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=csu1335969537.

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30

Reed, Andrew J. "Biogeography of West Nile Virus in Ohio." Bowling Green State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1609806272985721.

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31

Santos, Ana Margarida Coelho dos. "Ecology and biogeography of island parasitoid faunas." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5759.

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Islands constitute natural laboratories for the study of evolutionary and ecological processes due to their discrete and isolated nature. Island biotas tend to be species–poor and disharmonic compared to the mainland; typically, interspecific competition is low, and entire groups of predators, parasitoids or pathogens are absent from their biotas, so the ecological space is often not fully saturated. Consequently, species from island assemblages often use a wider range of resources than their counterparts from the source mainland. Here, I investigate whether island parasitoid communities have
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32

Simaika, John P. "Conservation biogeography of South African dragonflies (Odonata)." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/1711.

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33

Kodandaramaiah, Ullasa. "The dispersal-vicariance pendulum and butterfly biogeography /." Stockholm : Department of zoology, Stockholm university, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-29505.

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Diss. (sammanfattning) Stockholm : Stockholms universitet, 2009.<br>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Manuscript. Paper 4: In press. Paper 5: In press. Härtill 5 uppsatser.
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34

Schuman, Irina. "The Molecular Diversity and Biogeography of Tardigrades." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-143134.

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Tardigrades can handle extreme conditions such as heat, cold and drought, thanks to a process called cryptobiosis which can be found in a limited amount of taxa on Earth. More knowledge about such animals may help us to understand the potential and limitations of life both on Earth and possibly in space. Such knowledge may also help develop novel, useful applications for the society, such as better storage of sensitive medicine. However, our knowledge about tardigrades is limited. We know little about their distribution and diversity, especially in Sweden, and above all in northern Sweden. The
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35

Portillo, José Thales da Motta. "Biogeography and ecophylogenetics of atlantic forest snakes /." São José do Rio Preto, 2019. http://hdl.handle.net/11449/181614.

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Orientador: Ricardo Jannini Sawaya<br>Banca: Marcio Roberto Costa Martins<br>Banca: Laura Rodrigues Vieira de Alencar<br>Banca: Fernando Rodrigues da Silva<br>Banca: Cristiano de Campos Nogueira<br>Resumo: A Mata Atlântica da América do sul é um mosaico de diferentes fitofisionomias, relacionadas a pressões seletivas correspondentes a fatores ecológicos e evolutivos distintos, os quais regulam a distribuição da biodiversidade entre os habitats. Exploramos, neste trabalho, como a diversidade de serpentes é distribuída ao longo do gradiente latitudinal da Mata Atlântica. Primeiro analisamos a as
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36

Jensen, Paul Robert. "Marine actinomycete diversity, biogeography, and secondary metabolite production." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3204582.

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Thesis (Ph. D.)--University of California, San Diego, 2006.<br>Title from first page of PDF file (viewed April 4, 2006). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
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37

Glaeser, Jens. "In situ Metabolism and Biogeography of Phototrophic Consortia." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-19707.

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38

Sebastian, Patrizia. "Phylogenetics and biogeography of two clades of Cucurbitaceae." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-146298.

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39

Sawada, Michael Charles. "Late quaternary paleoclimates and biogeography of North America." Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/9031.

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Pollen, spores, and dinoflagellate cysts are used with the modern analog technique (MAT) to provide paleoclimate reconstructions for terrestrial and marine environments in northeastern North America. Multivariate analysis of marine and nearby terrestrial pollen sequences from Hudson Bay, Labrador and the St. Lawrence, differentiate tundra, boreal and deciduous forest assemblages in time and space. These three regions had differing climate histories with respect to deglaciation and air mass boundaries. Prior to 6000 14C yr BP, cooler temperatures reconstructed along the Labrador margins agree w
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40

Bouchard, Giselle. "Freshwater diatom biogeography of the Canadian Arctic Archipelago." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26589.

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The biogeography of diatoms in 62 lakes across the Canadian Arctic Archipelago was studied. A total of 326 taxa was found, with up to 85 and as low as 8 taxa identified in any one lake. Rarefaction-estimated richness correlated with lake size. Although diatom assemblages showed regional patterns, between-lake variability in any region was high, indicating that local factors are important in determining the assemblages. Newly delineated genera showed interpretable geographic patterns and could be related to environmental factors, suggesting that this more natural grouping may enhance our unders
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41

Jennings, John T. "Systematics and biogeography of hyptiogastrine wasps (Hymenoptera: Gasteruptiidae)." Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phj543.pdf.

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Copies of six of the author's previously published articles in pocket inside back cover. Bibliography: leaves 188-208. This study has investigated the phylogenetic relationships among genera and species of hyptiogastrine wasps, examined whether the current distribution of taxa can be explained by vicariance events, and revised the taxonomy of species. (summary)
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42

Wang, Rui. "Osteology, phylogeny and biogeography of Parioglossus (Perciformes: Gobioidei)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63243.pdf.

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43

Wells, Alice. "The systematics and biogeography of Australian hydroptilidae (Trichoptera) /." Title page, contents and abstract only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phw453.pdf.

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44

Squire, Gareth. "The biogeography of the Indo-West Pacific echinoids." Thesis, Queen Mary, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391824.

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45

Quinn, Rachel. "The biogeography of rare species and their conservation." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311471.

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46

Sanders, Kate L. "Cryptic speciation and biogeography in Indomalayan pitvipers (Trimeresurus)." Thesis, Bangor University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402664.

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47

Hughes, Alice Catherine. "The conservation and biogeography of Southeast Asian bats." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541648.

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48

Holstein, Norbert. "Evolution, biogeography, and monographic treatment of Coccinia (Cucurbitaceae)." Diss., Ludwig-Maximilians-Universität München, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-178656.

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49

Parsons, Michael Jonathan. "The autecology and biogeography of New Guinea butterflies." Thesis, University of London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243801.

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50

Kenicer, Gregory J. "Systematics and biogeography of Lathyrus L. (Leguminosae, Papilionoideae)." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/15150.

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The phylogenetic position of <i>Lathyrus </i>relative to the rest of tribe Fabeae was estimated based on sequence data from the chloroplast <i>matK </i>region. This study included 24 species of <i>Lathyrus </i>(including 19 newly sequenced). A clade containing <i>Lathyrus, Pisum </i>and <i>Vavilovia </i>is strongly supported as monophyletic. The results support the existing morphologically based hypothesis that <i>Pisum </i>and <i>Vavilovia </i>are sister genera. To study relationships within <i>Lathyrus, </i>accessions representing 53 of its species were sequenced for the internal transcribed
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