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 14 of 14 for “"habitat classification"”.
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The application of machine learning and 3D photogrammetry for cold-water coral habitat classification in the NE Atlantic
Cold-water coral reefs are complex structural habitats that represent one of the most important deep marine ecosystems. As three-dimensional habitats with high structural complexity, they provide ecosystem services that influence species abundance and biodiversity, being indicators of ecosystem …
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The use of habitat classification and mapping of the threatened flattened musk turtle in the shoreline management of Smith Lake, Alabama
The purpose of this thesis was to develop a habitat classification system indicating suitability of shoreline for the federally threatened flattened musk turtle (Sternotherus depressus). The shoreline of Smith Lake was visually assessed by a biologist familiar with S. depressus. Segments of …
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A Study on Deepsea Fish Detection Using Convolutional Neural Networks
… for two primary tasks, firstly fish and its habitat classification and deep-sea fish detection using the DeepFish dataset. A pretrained ResNet-50 model attained a validation accuracy of 82.8% for multi-class habitat classification, demonstrating robust performance in most habitats based on …
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Examination and management of human African Trypanosomiasis propagation using geospatial techniques
… factors, and understanding the vector’s habitat is vital to its control. There is no HAT vaccine, but biological control of the vector has been successful in reducing HAT incidence. However, in recent years the disease has re-emerged and spread. Due to insufficient knowledge of HAT …
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Syntaxonomy and synecology of western Transvaal grasslands
… presented an easily interpretable vegetationcum- habitat classification and thus much needed information on the vegetation ecology of the study area. This should be used for future land-use planning, management, utilization, research and conservation of the natural resources. The synthesis of the …
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A Vegetation Analysis on Horn Island, Mississippi, ca. 1940 Using Characteristic Dimensions Derived from Historical Aerial Photography
… 18kn off the coast of Mississippi. This island’s habitats have undergone many transitions over the last several decades. The goal of this study was to quantify habitat change over a seventy year period using historical black and white photography from 1940. Using present NAIP imagery from the …
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Computational imaging and automated identification for aqueous environments
… SeaBED AUV imagery are developed, including habitat classification with bag-of-words models and multi-stage boosting for rock sh detection. Methods for extracting images of sh from videos of long-line operations are demonstrated. A prototype digital holographic imaging device is designed and …
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Characterization of Natural and Anthropogenic Seabed Features in the Southwestern Baltic Sea
… the seabed's physical characteristics, benthic habitat distribution, and the extent of human impacts. Seabed pressure assessments typically rely on large-scale proxy data, overlooking actual impacts and the long-term effects of human activities on the seafloor. Also, while habitat mapping …
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Distribution and abundance of nearshore aquatic habitat, Fraser River, British Columbia
Physical habitat for instream biota derives from a combination of stream system structural and hydraulic phenomena. Consequently, the quantity and quality of physical habitat is dynamic both over time and in space along the river, laterally, longitudinally and vertically. Its characterization …
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Effects of an Increasing Lesser Snow Goose Population on Shorebird Foraging Ecology at La Perouse Bay, Manitoba
… comparisons all data were collected from two habitats - moderately degraded and severely degraded. Habitat classification was based on vegetation and substrate characteristics. Three 50 x 50 m plots were established in each habitat. One plot in each habitat was evaluated in 1997 while an …
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Quantitative Comparison of Benthic Habitat Maps Derived From Multibeam Echosounder Backscatter Data
… been developed to achieve the identification, classification and mapping of seabed types and of benthic habitats. These approaches, commonly grouped under the denominations of Benthic Habitat Mapping or Acoustic Seabed Classification, exploit the latest scientific and engineering advancements …
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Using geographic information systems to examine red wolf home range and habitat use in the Great Smoky Mountains National Park
… was conducted to determine home range and habitat use patterns of the reintroduced red wolf (Canis rufus) in the Great Smoky Mountains National Park (GSMNP). To facilitate this GIS analysis, the original telemetry data was first converted from obsolete file formats into a contemporary …
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Development and evaluation of methodologies for the classification of ecological communities.
… the nutshell philosophy, for classifying aquatic habitats in the St. Croix National Scenic Riverway. The "nutshell" is a compact philosophy for practitioners, including two parts: (1) a classification framework using a small set of environmental predictor variables; and (2) test of the …
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Conservation of polychaete biodiversity within the Port Stephens-Great Lakes Marine Park
… in biodiversity due to pressures from fishing, habitat destruction, invasive species, pollution and global climate change. Marine protected areas (MPAs) are an effective approach, in concert with other management approaches, to protecting marine environments and their component biodiversity, …