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 “"bioacoustic"”.
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Addressing Engineering Challenges In Bioacoustic Recording
Bioacoustics is a very challenging field due to the necessity of putting fragile, powerhungry pieces of instrumentation out in isolated, hostile environments for long periods of time. Making these instruments as durable as possible, while also considering weight, power consumption, size, and …
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Public Engagement Technology for Bioacoustic Citizen Science
… be used by citizen scientists interacting with bioacoustic data such as birdsong. This thesis describes design research and field evaluation, in collaboration with conservationists and educators, and technological artefacts implemented as mobile applications for interactive educational gaming …
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Bioacoustic classification of Hainan gibbon call types using deep learning
In Bawangling National Nature Reserve (BNNR), Hainan, China, there exists a critically endangered primate known as the Hainan gibbon Nomascus hainanus. Many species, including the Hainan gibbon, are at high risk of extinction due to many factors such as unsustainable hunting, climate change, and …
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Bioacoustic Studies of Population Size and Microdialects in an Island-Living Savannah Sparrow Population
Bioacoustic monitoring provides an innovative technique for studying the behaviour and ecology of wild birds. In this thesis I use bioacoustic monitoring as a tool for studying Savannah Sparrows (Passerculus sandwichensis). In my first data chapter, I tested the accuracy of passive acoustic …
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Determining Habitat Associations of Virginia and Carolina Northern Flying Squirrels in the Appalachian Mountains from Bioacoustic and Telemetry Surveys
The Virginia northern flying squirrel (Glaucomys sabrinus fuscus) and the Carolina northern flying squirrel (G. s. coloratus) are geographically isolated subspecies of the northern flying squirrel found in montane conifer-northern hardwood forests the Appalachian Mountains of the eastern United …
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Monitoring Squirrels from the Sky: Applications of Uncrewed Aerial Systems-Based Bioacoustic and Vegetation Monitoring Regimes for Mohave Ground Squirrel
… systems-based (henceforward UAS or drones) bioacoustic monitoring. The Mohave ground squirrel (MGS) is a threatened species under the California Endangered Species Act, and occupies a northwest corner of the Mojave Desert, one of the smallest ranges of any ground squirrel (Hoyt, 1972). …
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Mountain Pine Beetle Detection using IoT
… Pine Beetle (MPB) infestation detection using bioacoustic recognition via deep learning techniques. First, we present the design of the IoT system and describe its various hardware and software components. We built our IoT device using LoRa communication technology and DIY components. We use a …
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Improving individual identification of wolves (Canis lupus) using the fundamental frequency and amplitude of their howls: a new survey method
Many bioacoustic studies have been able to identify individual mammals from variations in the fundamental frequency (F0) of their vocalizations. Other characteristics of vocalization which encode individuality, such as amplitude, are less frequently used because of problems with background noise …
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Evaluation of a Simple Model for the Acoustics of Bat Swarms
… flying in dense swarms may face significant bioacoustic challenges, in particular mutual sonar jamming. While possible solutions to the jamming problem have been investigated multiple times in literature, the severity of this problem has received far less attention. To characterize the …
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Coral reef soundscapes : spatiotemporal variability and links to species assemblages
… in Maui, Hawaii, in which the drivers of bioacoustic differences among reefs are explored. Third, I investigate the distances over which sounds of biological origin may travel away from the reef and consider the range within which these acoustic cues might be usable by pelagic larvae in …
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Coral reef soundscapes: spatiotemporal variability and links to species assemblages
… in Maui, Hawaii, in which the drivers of bioacoustic differences among reefs are explored. Third, I investigate the distances over which sounds of biological origin may travel away from the reef and consider the range within which these acoustic cues might be usable by pelagic larvae in …
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Fish Vocalisation: Understanding its biological role from temporal and spatial characteristics
… study has also described for the first time the bioacoustic environment of a fish aggregation device (FAD). Using a Malaysian FAD as a model, the present study showed that sounds in frequency bands typically dominated by various biological sources (500 Hz – 2000 Hz octave bands) could propagate …
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A Portfolio of original compositions (Barry O'Halpin)
Written for various forces, the portfolio works discussed in this commentary share an overarching interest in non-human natural phenomena – both biotic and abiotic – as sources of an untempered, uncanny musicality to be mimetically absorbed into my practice using a post-spectral approach. Existing …
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A Comparison of Current Anuran Monitoring Methods with Emphasis on the Accuracy of Automatic Vocalization Detection Software
<p>Currently, a variety of methods are available to monitor anurans, and little standardization of methods exists. New methods to monitor anurans have become available over the past twenty years, including PVC pipe arrays used for tree frog capture and Automated Digital Recording Systems (ADRS) …