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 20 of 20 for “"passive acoustic monitoring"”.
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Investigating blue and fin whale populations through passive acoustic monitoring using ocean bottom seismometers
… before its international ban in the 1980s. Monitoring the recovery of their populations is difficult to study with traditional animal survey methods. Visual transect methods using ships and planes cover only small portions of baleen whales’ vast migratory ranges that span thousands of …
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Using Passive Acoustic Monitoring to Estimate Bird Community Response to Land Management in Southeastern Georgia
… abundance or relative abundance from ARU data. Passive acoustic monitoring with ARUs can enable efficient monitoring of avian populations. RN models may be well suited for estimating abundance or relative abundance from ARU detection/non-detection data; as repeated surveys can easily be …
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Temporal and spatial distributions of baleen whales in central New Zealand, based on passive acoustic monitoring
… and how they overlap with threats. Passive acoustic monitoring (PAM) is a non-invasive method to investigate the distribution of free-ranging species that reliably produce sound, and soundscape analysis enables an integrated approach whereby vocal species are sampled concurrently …
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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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Towards multimodal monitoring of large African carnivores
… are camera traps and GPS or VHF collars. Passive acoustic monitoring could act as a complementary monitoring tool because both species produce loud, recognisable vocalisations that propagate long distances. Yet, no such survey has occurred for leopards and passive acoustic monitoring for …
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Dialect Use Within a Socially Fluid Group of Southern Resident Killer Whales, <i>Orcinus orca</i>
… that are more closely related tend to be more acoustically similar. Within the endangered community of Southern Resident killer whales (SRKWs), recent evidence shows that one particular group (L pod) exhibits the lowest rate of intrapod association and has significantly greater associations …
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Interactions between harbour porpoises and aquaculture on the west coast of Scotland
… (SAC). The present study conducted long-term Passive Acoustic Monitoring (PAM) at eight salmon farms within the wider Firth of Lorn and Sound of Mull, to determine whether porpoises interact with farms on Scotland’s<br/>west coast. Results indicated that although porpoise presence around farms …
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Future Climate Rhetorics of Belize: A Counter-Apocalyptic Inquiry into Belize’s Possible, Probable, and Preferable Futures
… climate policy, experiential phenomenology, and acoustic ecologies of agroecology. Chapter one considers the values embedded in climate change policy documents, specifically the Nation Communications documents composed by Belize’s various ministries since the country signed to the Paris Agreement …
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Developing a cost-effective monitoring strategy for coastal cetaceans
… areas of conservation importance through Passive Acoustic Monitoring (PAM).The harbour porpoise Phocoena phocoena was found to be the most commonly detected cetacean in Northern Irish waters exhibiting a persistent, but non-uniform distribution. The temporal distribution of this species, …
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Acoustical characterization of glacierized fjords
… massive glaciers meet the ocean. This underwater acoustic environment is significantly louder than other ice-covered environments. The abundant acoustic information, coupled with the difficulty performing measurements on or near glacier termini, encourage the use of passive acoustic monitoring to …
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INDICES AND ECOINFORMATICS TOOLS FOR THE STUDY OF SOUNDSCAPE DYNAMICS
The study of the new field of soundscape ecology presents several research avenues to explore. In the chapters in this dissertation, I have followed several of the technical and methodological areas of the study of soundscapes. In Chapter 1, I presented the current status of the study of …
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Automatic baleen whale detection and 2D localization using a network of unsynchonized passive acoustic sensors
Underwater acoustics is a powerful tool for learning about the ocean’s soniferous marine life. However, most modern acoustic sensing systems consist of expensive arrays of timesynchronized recorders which require a crewed research vessel and significant expertise to deploy, operate, and recover. …
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Soundscape Ecology of Hawaiian Spinner Dolphin Resting Bays
… animals, these dolphins rely on sound and their acoustic environment for many aspects of their daily lives, making it is essential to understand soundscape in areas that are critical to their survival. Hawaiian spinner dolphins rest during the day in shallow coastal areas and forage offshore at …
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Automatic Baleen Whale Detection and 2D Localization Using a Network of Unsynchronized Passive Acoustic Sensors
Underwater acoustics is a powerful tool for learning about the ocean's soniferous marine life. However, most modern acoustic sensing systems consist of expensive arrays of time-synchronized recorders which require a crewed research vessel and significant expertise to deploy, operate, and recover. …
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Developing and assessing methods to census and monitor burrow-nesting seabirds in Ireland
Censusing and monitoring populations are key priorities in conservation. This is particularly challenging for seabirds, where several life history characteristics and the remote nature of breeding colonies of many species make them difficult to study. Burrow-nesting species are the most difficult …
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Listening to nature: Acoustic analysis for monitoring wildlife management and protected areas
… areas (PAs) and pest control programmes. Passive acoustic monitoring (PAM) coupled with acoustic indices and automated identification are promising tools for biodiversity monitoring. However, two technical bottlenecks are still important limitations for their wide use. Automatic …
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Habitat Use And Nightly Activity Patterns Of Bats On A Military Landscape In Western Kentucky
… the summers of 2016 and 2017 using full-spectrum acoustic detectors across the Wendell H. Ford Regional Training Center (WHFRTC), a ca. 4200 ha military landscape in the Interior Rivers and Valleys ecoregion of Muhlenberg County in western Kentucky. Local habitat data was collected on site, and …
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The Importance of Bioacoustics for Dolphin Welfare: Soundscape Characterization with Implications for Management
… in facilities that are too noisy, or are too acoustically sterile. However, these claims have not been evaluated to characterize facility soundscapes, and further, how they compare to wild soundscapes. The soundscape of a wild dolphin habitat off the coast of Quintana, Roo, Mexico was …
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Spatial Ecology and Conservation Strategies for the Endangered Northern Long-Eared Bat (<i>Myotis septentrionalis</i>) in a Post-White-Nose Syndrome Landscape
… proximal to open water. Research utilizing passive acoustic monitoring on the Coastal Plain of both Virginia and North Carolina found that northern long-eared bat relative activity was highest in areas containing greater proportions of woody wetlands and upland pine-dominated evergreen …