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 “"thermal adaptation"”.
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Thermal Adaptation in <em>Daphnia pulex</em>.
<p>Thermal adaptation in freshwater planktonic crustacean <em>Daphnia pulex</em> has been investigated by means of heatshock (35°C) experiments using individuals acclimated to different water temperatures (18, 24, and 28°C). Retention of mobility and survival during the heatshock experiments …
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Thermal adaptation in butterflies: patterns, significance and mechanisms
… on the patterns, significance and mechanisms of thermal adaptation in ectotherms on three main issues: (1) the mechanistic basis of the temperature-size rule (TSR), (2) altitudinal patterns potentially related to thermal performance and (3) the genetic background of such variation. Following the …
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Thermal adaptation of conformational dynamics in ribonuclease H
… families from organisms adapted to different thermal environments. The best experimental tool for characterizing internal conformational dynamics of proteins on a range of timescales and at site-specific resolution is nuclear magnetic resonance (NMR) spectroscopy, which has found widespread …
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Thermal Adaptation in Largemouth Bass Populations Inhabiting Power Plant Cooling Reservoirs
The objective of this study was to test for thermal adaptation in largemouth bass (Micropterus salmoides) populations inhabiting two power plant cooling reservoirs in central Texas. The offspring of bass from the two test reservoirs and two control reservoirs were raised under near identical …
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Investigations of Local Unfolding Like Conformational Excursions in the Native State of Adenylate Kinase
… to an understanding of both function and adaptation in proteins. It has been difficult to experimentally separate these effects because it is challenging to rationally design mutations that will selectively effect dynamics. Here we adopt a mutation approach that is based on a thermal …
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The Effects of Temperature on the Growth and Competition of Phytoplankton
… of isolated algae species to changes in their thermal environment. Focus lay on whether thermal adaptations could occur when culturing algae for extended periods of time at elevated temperatures. My results showed that warming does not necessarily lead to thermal adaptation and that the …
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Latitudinal Variation in Thermal Tolerance and Preference of <i>Fundulus notatus</i> and <i>F. olivaceus</i>: Implications for Temperature Mediated Reproductive Isolation
… range, these populations inhabit a wide range of thermal regimes, thus having to locally adapt to their surrounding thermal environments. Variable temperature regimes along latitudinal gradients might be responsible for adaptive differences in thermal biologies among populations. I examined …
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Genomic and physiological adaptation to temperature in the invasive golden star runicate (Botryllus schlosseri)
… to study how a pernicious NIS adapts its thermal physiology on contemporary time scales. In Chapter 2, I applied low-coverage whole genome sequencing (lcWGS) to investigate patterns of population genetic structure and signatures of local adaptation to temperature. In addition to …
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Genomic and physiological adaptation to temperature in the invasive golden star tunicate (Botryllus schlosseri)
… to study how a pernicious NIS adapts its thermal physiology on contemporary time scales. In Chapter 2, I applied low-coverage whole genome sequencing (lcWGS) to investigate patterns of population genetic structure and signatures of local adaptation to temperature. In addition to …
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Long-Term Evolution of the Complex Eukaryote Tetrahymena thermophila
Evolutionary biologists have long sought to understand what factors affect the rate and repeatability of adaptive outcomes. To better understand the role of temperature in determining adaptive trajectories, we evolved populations of different genotypes, including populations that just had sex and …
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Evolutionary physiology of New Zealand stick insects: A thermal biology approach
… changes through phenotypic plasticity or adaptation. Although many single-species studies document how ectotherms tune their phenotypes in response to temperature, our understanding of how different thermal adaptations evolve is limited to a few model organisms. New Zealand stick insects …
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The effects of temperature, latitudinal origin, and dam escapement on management of muskellunge
… may vary in their physiological tolerance to thermal stress and the implications when relocating fish. In the first study I examined thermal tolerance among populations representing several stocks of muskellunge from varying latitudes using lethal chronic thermal maxima and sub-lethal …
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Coral adaptations across ecological and evolutionary scales
… many species rich genera and exhibit local adaptation and long-range dispersal potential, but they are also the structural engineers of coral reef ecosystems that are facing serious threat from warming oceans, acidification, and other anthropogenic disturbances. Thus, investigating …