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 7 of 7 for “"Taxonomic research"”.
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A Content-Based Image Retrieval System for Fish Taxonomy
… a content-based image retrieval system for taxonomic research. The system can identify representative body shape characters of known species based on digitized landmarks and provide statistical clues for assisting taxonomists to identify new species or subspecies. The experiments on a …
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Fauna de Gammaridea (Crustacea-Amphipoda) associada a ulva em trechos de litoral escarpado de Niterói e Angra dos Reis - RJ
… camera making 26 plates with 295 illustrations. Taxonomic research the of gammarideans resulted in the elaboration of 3 keys for classification of the 8 species correspomding at the genus Elasmopus, Jassa and Hyale. From those 8 species studied, only Jassa falcata is known. Problems of taxonomy …
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The chiton fauna (Mollusca: Polyplacophora) of South Africa
… in South Africa. Over the past three decades, taxonomic research has resulted in a pronounced increase in the description of regional chiton species, with the result that the most recent (1985- 2006) series of global monographs on chitons by Kaas and Van Belle now cover only 22 of the 50 chiton …
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Contributions to Robust Methods: Modified Rank Covariance Matrix and Spatial-EM Algorithm
… been proposed. We adopt the outlier detection to taxonomic research on fish species novelty discovery. UCI Wisconsin diagnostic breast cancer data and Yeast cell cycle data are used for clustering analysis. Comparing with the regular EM and many other existing methods such as X-EM and SVM, …
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Evolution of the aquatic beetle family Noteridae (Coleoptera: Adephaga): integrating methods to examine patterns of diversification across temporal scales.
… and methodological basis for my dissertation research. Within Noteridae, the subfamily of minute beetles, Notomicrinae, presents a partial Gondwanan distribution, occupying Oceania, Indomalaya and the New World. My dissertation research shows that several species in the largest genus of the …
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Species delimitation and speciation process in the Seriphium plumosum L. complex (Gnaphalieae: Asteraceae) in South Africa
… Cape flora have already been described. However, taxonomic research in the Cape has, as elsewhere, relied on morphology for delimiting species, implying that undiscovered species diversity among cryptic taxa may be substantial. Early ideas regarding the drivers of diversification in the Cape flora …
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Biodiversity of phytoparasitic nematodes associated with Musaceae and fruit crops in Colombia
… Despite of significant economic losses, taxonomic research on these taxa in Colombia is limited. This thesis focuses mainly on two composition components of biodiversity (species and genes) as a contribution to the analyses of biodiversity of economically important plant-parasitic …