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 16 of 16 for “"Biologging"”.
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How seabirds respond to a changing oceanic environment: a biologging approach
… response of seabirds to different stressors. Biologging devices are continuously improving and miniaturising, being applied to collect fine-scale behavioural information for smaller species and for more protracted durations. In this thesis, biotelemetry is used to investigate the at-sea …
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Biologging for marine megafauna conservation: animal tracking, environmental monitoring, and modelling approaches.
… habitat destruction, and climate change. Biologging—the use of electronic tags to study animal movement, behaviour, physiology—has emerged as a critical tool for understanding animal ecology and informing conservation strategies. This thesis explores the application of state-of-the-art …
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Remotely sensing motion: the use of multiple biologging technologies to detect fine-scale, at-sea behaviour of breeding seabirds in a variable Southern Ocean environment
… from satellite telemetry. Recent advances in biologging technologies have opened up new avenues for studying the at-sea behaviour of farranging seabirds in their natural environment. Bio-logging devices are now small enough to be attached to flying seabirds where multiple sensors record data …
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Measuring behaviour, energy expenditure and parasite transmission in the face of climate change: comparisons with a domestic and wild caprid
… to estimate the effect of climatic changes. Biologging tools enable remarkable insights into the behaviour and movement of elusive species. However, the ease with which these data can be collected is in stark contrast to the difficulties in analysing and interpreting such large data sets. …
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Movement and energetics of swimming marine mollusks
… changes. In this thesis, I adapted emerging biologging sensor technology, traditionally designed for large robust vertebrates, for two key mollusk taxonomic groups (squid and scallops) to quantify and characterize movements at fine-temporal scales. In Chapter 2, I collected the first …
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Technology in ecology: determining the location, behaviour, and energy expenditure of free-ranging carnivores
… thesis recommends methods to increase biologging accuracy that should be implemented when monitoring free-roaming animals and investigates the impact of urban expansion on carnivore behaviour and energy expenditure, with implications for conservation and habitat management.
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Fine-Scale Foraging Behavior of Humpback Whales Megaptera novaeangliae in the Near-Shore Waters of the Western Antarctic Peninsula
… events (i.e., lunges) were inferred from the biologging records of thirteen whales, including a mother and her calf. In general, humpback whales exhibited efficient foraging behaviors that allowed them to maximize energetic gains and minimize energetic costs as predicted by optimal foraging …
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The Sea is the Limit: Foraging Ecology of Breeding Antarctic Procellariiformes
… declines since the mid-20th century. Advances in biologging technologies over the last four decades have made it possible not only to accurately track individual movements, but also to identify important behaviours at sea. In my first data chapter (Chapter 2), I combine data from multiple tag …
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Estimating the Cost of Locomotion in Common Bottlenose Dolphins: Calibration, Validation, and Application to Study the Impacts of Disturbance
… on marine mammals. A new generation of biologging devices has enabled the measurement of fine-scale behavioral responses to disturbance, but calibration experiments are required to convert these measured changes in activity level into energy expenditure. Such calibrations have been …
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Seabird use of tidal stream environments and potential interactions with tidal energy devices
… and razorbill Alca torda. High resolution biologging and telemetry (Time Depth Recorders (TDRs) and GPS) data from individuals breeding at colonies within a major tidal energy site, the Pentland Firth, Scotland, were analysed. Year-round camera trap monitoring and diet sampling to provide …
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Characterizing the Role of Magnetic Cues Underlying Spatial Behavior
… mechanism. Chapter III explores the use of novel biologging techniques to collect behavioral and spatial data from free-roaming mammals. Specifically, a previous observational study of free- roaming red foxes found a 4-fold increase in the success of predatory 'mousing' attacks when foxes were …
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Movement ecology and fisheries bycatch risk of albatross and large petrel species from Bird Island, South Georgia
Recording animal movements is essential for understanding the distribution of species over time, with far-reaching consequences for fitness, population dynamics and conservation. Oceanic seabirds are some of the most mobile and threatened species on Earth, mainly because of incidental mortality …
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Effects of Fertility Control on the Movement Ecology of White-Tailed Deer
… To investigate these potential consequences, biologging devices were deployed on a total of 158 deer, across two sites: the treatment site on Staten Island and a control site at Rockefeller State Park Preserve in Pleasantville, NY, USA. The dataset included global positioning system (GPS) and …
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The ecology of a recovering native predator: the European pine marten (Martes martes)
Predators have undergone severe historical decline due to human persecution and habitat loss. Predator populations are starting to recover in parts of Europe for the first time in response to protective legislation and conservation efforts. The landscapes native predators are recovering in are …
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Behavioural Ecology of Large Tuna
Animal behaviour operates at the intersection of physiological capacity and ecological constraints, making it a sensitive biomarker for stressor impacts. However, understanding behavioural responses requires monitoring at temporal resolutions matching the biological processes of interest, from …
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Drivers of variation in the migration and foraging strategies of pelagic seabirds
The ability to move and forage efficiently plays a major role in determining the fate of individuals, and has important implications for population dynamics and ecosystem functioning. Migration is a particular type of movement strategy, whereby animals may travel remarkable distances in order to …