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 43 for “"energetic costs"”.
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Energetic costs of toxicant metabolism in rainbow trout ( Oncorhynchus mykiss)
… This study investigates the changes in energetic demands associated with increased detoxification. Two CYP1A inducers were employed, PCB-126 and BNF. Resveratrol, a documented inhibitor of CYP1A activity and gene expression, was used to correlate metabolic changes in CYP1A induction with …
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Quantifying the Energetic Costs of Photovoltaic Pumping Systems (PVPS) for Sub-Saharan African Smallholder Farms
… is still a lack of investigation into potential energetic cost savings by improving solar pump efficiency from an architectural design perspective. In this study, a technoeconomic framework was developed to quantify the energetic costs of different solar pump architectures. The energetic cost is …
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Kinetics and Energetics of Feeding Behaviors in Daubentonia madagascariensis
… measuring the kinetics of wood gnawing and the energetics of feeding behaviors. The main results of these experiments were: 1) Daubentonia does not generate relatively high magnitude bite forces during wood gnawing compared to their maximal voluntary bite force, but wood gnawing is extremely …
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Fine-Scale Foraging Behavior of Humpback Whales Megaptera novaeangliae in the Near-Shore Waters of the Western Antarctic Peninsula
… foraging behaviors that allowed them to maximize energetic gains and minimize energetic costs as predicted by optimal foraging theory. They fed at a continuous and high rate in the upper portion of the water column (< 100 m) from approximately dusk to dawn when their prey (Antarctic krill, …
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Factors affecting the activity patterns of Myotis tricolor (Chiroptera: Vespertilionidae)
… component of an animal’s ecology. Increases in energetic costs associated with reproduction, should have marked effects on foraging behaviour, but may be compounded by the effects of environmental factors. I investigated the activity patterns of female M. tricolor over the reproductive period …
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Estimating the Cost of Locomotion in Common Bottlenose Dolphins: Calibration, Validation, and Application to Study the Impacts of Disturbance
<p> Estimates of the energetic costs of locomotion (COL) are necessary to understand one of the potential impacts of anthropogenic disturbance on marine mammals. A new generation of biologging devices has enabled the measurement of fine-scale behavioral responses to disturbance, but calibration …
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Honest Signaling in Aggressive Contests Between Ozark Zigzag Salamanders (Plethodon Angusticlavius)
… they are constrained by factors such as the energetic costs of the signal. I tested the hypothesis that "All Trunk Raised” (ATR), a behavior that occurs in territorial contests in terrestrial salamanders, is an honest indicator of aggressive intent. In staged contests between pairs of Ozark …
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Population genetic structuring in the common mole-rat, Cryptomys hottentotus hottentotus
… This appears to be in response to the high energetic costs of burrowing and the low probability of locating geophyte clumps in increasingly arid environments.
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Empirical approaches to the conservation of Margaritifera Margaritifera
… mussels used in translocation studies may incur energetic costs through reduced short term activity and the increased effort required to re-burrow into the substrate<br/>Captive-bred Freshwater pearl mussels released into the wild and monitored for 18months validates captive breeding and release …
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Simulazione energetica di scenari per la produzione combinata a servizio di edifici civili in area mediterranea
… e 2012/27/UE) promote the reformulation of energetic planning rules and the adoption of environmental-friendly models including the nearly zero-energy buildings, which can be realised through increased energy efficiency, optimised energy production and the systematic use of renewable …
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Evaluating Competition Between Sympatric Flying Squirrels (Glaucomys Spp.) In Northeastern Minnesota
… tradeoffs between competing factors, such as energetic costs, competition, predation risk, and resource availability. Climate change is increasingly altering these tradeoffs by reshaping temperature regimes and seasonal energy demands for many species. Northern flying squirrels (Glaucomys …
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Aerobic and anaerobic activity metabolism of an elasmobranch
… with regard to a basic understanding of energetics or how stressors alter patterns of energy use and allocation. Therefore, the focus of this research was to define relationships between the behavior and energy use for a species of shark both undisturbed in the wild and subjected to the …
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Biologging for marine megafauna conservation: animal tracking, environmental monitoring, and modelling approaches.
… significantly outweighs tag mass in determining energetic costs, providing data-driven guidelines for ethical tagging practices. This research contributes to the growing integration of biologging and conservation science, demonstrating how advances in animal tracking can directly inform …
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DEVELOPMENT OF ADSORBENTS FOR THE CAPTURE AND STORAGE OF HYDROGEN AND CARBON DIOXIDE BY MAGNETRON SPUTTERING
… of adsorbent materials that reduce the energetic costs of H2 and CO2 capture, facilitating reversible storage under safer conditions, are hoped to increase the viability of these technologies for industrial application. This thesis is the first to utilise magnetron sputtering, a …
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Sensitivity and Memory in Physics and Biology
… a patchwork of prior biophysics results on the energetic costs of sharp biochemical switches, accurate sensors, and molecular discrimination—revealing their common origin in the perturbation theory of Markov chains. In Part III, I turn to the question of how cells remember. In eukaryotes such as …
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A Theoretical Approach To Assessing Annual Energy Balance In Gray Whales (eschrichtius Robustus)
While direct measurements of energetic demands are nearly impossible to collect on large cetaceans, comprehensive bioenergetic models can give insights on such parameters by combining physiological and ecological knowledge. This model was developed to estimate necessary food intake of gray whales, …
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Technology in ecology: determining the location, behaviour, and energy expenditure of free-ranging carnivores
… questions about their habitat use, activity, and energetics. Biologgers are especially important for monitoring cryptic animals such as carnivores, when direct observations are impractical or might influence behaviour. In combination with environment data, these loggers can enhance our …
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Ecological flexibility and conservation of Fleurette's sportive lemur, Lepilemur fleuretae, in the lowland rainforest of Ampasy, Tsitongambarika Protected Area
… lemurs Lepilemur spp. are known to minimise energetic costs via short distances travelled, small home ranges, increased resting time, and low metabolic rates. Very little information, however, is available in the eastern rainforest, the habitat where this genus has its highest diversity. I …
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Flood Survival Strategies of Overwintering Snakes
… aquatic hibernation strategy 3) the energy costs of a full-dive is additive to the recovery energetic costs of a flood event. A neonatal snake wintering energy budget is proposed, and winter mortality conservation issues are discussed in chapter 4.
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Physiological Diversity of Centrarchid Fishes
… and laboratory study was used to quantify the energetic costs (intensity and duration) and physiological correlates (cardiovascular performance) of parental care in six syntopic centrarchids. Parental care energetics varied substantially among the six species, with smaller species providing …
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