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 79 for “"ecophysiology"”.
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Ecophysiology of Hibernating Eastern Red Bats (Lasiurus Borealis)
… was greatest at 1°C. These studies of ecophysiology yield a better understand of this species’ thermal limits and have predictive value when estimating winter energy budgets.
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Ecophysiology of the black mussel Choromytilus meridionalis (Krauss)
The thesis decribes the reproduction, population dynamics and production, filtration, respiration and assimilation of the black mussel Choromytilus meridionalis (Kr.) at Bailey's Cottage, False Bay, South Africa. The reproductive season and gonad development is described from monthly measurements …
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Towards an understanding of seasonal ecophysiology in north-temperate fish
Northern organisms exhibit a range of physiological, behavioural, and ecological strategies to both survive and exploit seasonal cycles in biotic and abiotic conditions. However, our baseline understanding of these seasonally motivated strategies in northern freshwater fishes remains quite limited, …
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The ecophysiology of the cold-water coral Lophelia pertusa (Scleractinia)
… Despite this, very little is known about the<br/>ecophysiology of L. pertusa and its likely response to environmental changes.<br/>The aims of this research were to investigate the physiology of L. pertusa and relate this to its environment. In particular, this research focused on the respiratory …
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Ecophysiology, Morphology and Phylogeography of Insects in the Scotia Arc
… Georgia Island. Habitat Characterisation and Ecophysiology: As a first step to enable the understanding of the physiological adaptations of the brachypterous midge T. magellanicus we first had to describe, in detail, its habitat. To that end, we made use of Permutational MANOVA and Similarity …
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Insights into the ecophysiology and biophysics of microbes involved in fermentation
Bramley apple microflora was shown to consist of Aspergillus, Cladosporium, Fusarium, Penicillium and other fungi. Some of these fungi were used for studies to determine biophysical activities of key cellular stressors present during cider fermentations: sugars, ethanol, and glycerol. Generally, …
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Ecology and ecophysiology of Zostera capensis: responses and acclimation to temperature
This study aimed to understand the ecology of the threatened, habitat-forming seagrass, Zostera capensis in Langebaan Lagoon, a marine protected area that forms part of the West Coast national park, South Africa; and the physiological strategies that allow this habitat to persist in sub- and …
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COMPARATIVE ECOPHYSIOLOGY OF NATIVE AND INVASIVE PLANTS ACROSS POPULATIONS, SPECIES, AND CONTINENTS
<p>Invasive species are a persistent threat to biodiversity and agriculture that cost countries millions of dollars each year. Despite the scale and impact of the problem of invasive species, it remains a mystery why some introduced species become invasive and others remain benign. Here, I examined …
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Winter Ecology and Ecophysiology of Prairie-Living Big Brown Bats (Eptesicus Fuscus)
Hibernation allows animals to survive lengthy periods of energetic deficit, but is not without costs. Hypometabolism, low body-temperature, and inactivity are associated with a variety of costs such as immuno-incompetence, dehydration, and build up of harmful metabolites. Additionally, conditions …
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ECOPHYSIOLOGY OF A WILD NOCTURNAL PRIMATE, THE JAVAN SLOW LORIS (NYCTICEBUS JAVANICUS)
… the gaps in knowledge and understanding of ecophysiology of a Critically Endangered primate, which can then be applied to conservation management and planning. I studied a population of wild Javan slow lorises (N. javanicus) ranging in a submontane agroforestry habitat in Cipaganti, West …
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Seed ecophysiology and plant population ecology of Cynoglossum officinale L. and Tragopogon spp.
In order to understand persistence strategies of Cynoglossum officinale L., Tragopogon pratensis L., and T. dubius Scop. in the rangelands of British Columbia, ecophysiological characteristics of seed germination in C. officinale and Tragopogon spp. and dynamics of seed and plant populations in …
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Ploidy and Ecophysiology analysis of the Arenaria ciliata L. complex (Caryophyllaceae) in Europe
… study demonstrated wide variation in ploidy and ecophysiology among ecotypes of A. ciliata species complex. Ploidy analysis reveals that among analysed taxa various ploidy levels were recorded. Distribution of ploidy variation of A. ciliata species across Europe in the present study indicates …
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Nitrogen environment, ecophysiology and growth of Gracilaria gracilus in Saldanha Bay, South Africa
The growth of Gracilaria gracilis (Stackhouse) Steentoft, Irvine et Farnham was examined by studying the effect of organismic determinants such as thallus length, position along the thallus and branching in a series of in situ and laboratory-based experiments. Knowledge of these factors is …
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WATER SOURCES AND ECOPHYSIOLOGY OF SELECTED RIPARIAN SPECIES OF THE SOUTHERN APPALACHIAN MOUNTAINS, USA
The following research examined water source utilization of two native riparian species along a perennial river in the southern Appalachian foothills, USA (Chapter II), including water source patterns over an entire year (III), and how these patterns changed according to differing hydrologic …
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Ecophysiology and Food Web Dynamics of Spring Ecotone Communities in the Edwards Aquifer, USA
Spring orifices serve as ecotones between groundwater and surface water habitats. It is thought that organisms living in physicochemically stable spring ecotones should exhibit small tolerance ranges; however, previous experiments examining this prediction are equivocal. I examined this hypothesis …
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Community, structure, activity and ecophysiology of sulfate-reducing bacteria in deep tidal flat sediments
Enhanced pore water exchange facilitates the transport of pore water to deep, sandy sediments and may provide microbial communities with usable substrates. In this thesis sulfate-reducing bacteria (SRB) were shown to be highly abundant and metabolically active in down to 5 meters depth of a tidal …
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Ecotoxicology and ecophysiology of mysids, with special reference to copper toxicity in Praunus flexuosus
… {<i>Praunusflexuosus</i>}. The life cycle and ecophysiology were studied under natural conditions throughout the year, and responses to dissolved copper were determined in the laboratory. Pronounced and ontogenic seasonal differences in copper toxicity for the mysid <i>Praunusflexuosus</i> were …
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