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 587 for “"invertebrate"”.
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Invertebrate glycoprotein-induced inflammation in rats
The present program of research, therefore, was designed to attempt to gain new insights into the possible etiology of inflammatory states - for when new information concerning the etiology of these diseases states becomes available, more meaningful screening procedures for anti-inflammatory drugs …
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Responses to Reflection in Two Invertebrate Species
The present thesis investigates the responses to reflection in both the crayfish Procambarus clarkii and the fruit fly Drosophila melanogaster. Responses to reflection in crayfish depend on social status and the current work suggests that learning and memory consolidation are required for these …
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Upland grassland agri-environment impacts on invertebrate biodiversity
Recent major declines in invertebrate abundance linked to agricultural intensification and land-use change have been documented. There has been a widespread lack of environmental monitoring and assessment of agri-environment schemes, with a lack of evidence supporting clear benefits of …
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Behavioral responses of invertebrate larvae to water column cues
Many benthic marine invertebrates have two-phase life histories, relying on planktonic larval stages for dispersal and exchange of individuals between adult populations. Historically, larvae were considered passive drifters in prevailing ocean currents. More recently, however, the paradigm has …
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Influences of forests on invertebrate communities in Icelandic streams
Effects of forests on headwater stream invertebrate communities were studied in eastern and southern Iceland, which are two geologically different regions. The eastern research area is composed of solid basaltic rock with direct run-off streams. The streams drain treeless, birch and conifer …
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Environmental Stressors: Pathways Of Exposure And Aquatic Invertebrate Response
… aqueous versus sedimentary exposure of PCBs on invertebrates. In the laboratory, organisms exposed to PCB-contaminated sediments experienced greater mortality than those exposed to PCB-contaminated water and in the field experiments those closer to the sediments experienced greater mortality …
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Characterising Antarctic marine invertebrate microbiomes and their antimicrobial potential
… endemic marine biodiversity. Antarctic marine invertebrates living in the near-shore are likely to be affected profoundly by warming-related changes, and microbes could help their hosts respond to the demands of environmental change. Moreover, their associated microbiomes may be untapped …
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Benthic invertebrate management in plastic-lined fish culture ponds
… substrate available to potential benthic macroinvertebrates, which are important prey for larval fish. Previous studies on plastic-lined ponds have focused on fertilization and management of zooplankton populations. Zooplankton populations are an important prey for larval fish, but as fish …
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Behavioral responses of invertebrate larvae to water column cues
Many benthic marine invertebrates have two-phase life histories, relying on planktonic larval stages for dispersal and exchange of individuals between adult populations. Historically, larvae were considered passive drifters in prevailing ocean currents. More recently, however, the paradigm has …
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Bacterial Challenge in Lumbricus Terrestris: A Terrestrial Invertebrate Immunotoxicity Model.
A bacterial challenge assay was developed utilizing the earthworm, Lumbricus terrestris, in order to assess potential immunotoxic effects from exposure to specific polychlorinated biphenyl congeners. Earthworms were inoculated with Aeromonous hydrophila, establishing a 10-day LD50. In vitro assays …
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Relative Invertebrate Availability in Nebraska's Conservation Reserve Management Access Program
… has two specific goals - increasing the total invertebrate availability as a food source for pheasant chicks and increasing the structural complexity of vegetation. This study compares invertebrate biomass and structural complexity of vegetation in treated (disked and interseeded with legumes) …
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Extinction and recovery dynamics of Triassic-Jurassic macro-invertebrate communities
… decreased the ecological functionality of the invertebrate marine assemblage. In spatial terms, the UK fauna show a clear response to the extinction effect, but the diversity response of the Chilean assemblage is not clear at all, which may be related to taphonomical bias. Alternatively, this …
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Invasive fish effects on the invertebrate constituents of wetland communities
… this study we explored fish effects on the invertebrate constituents of these wetlands, and possible niche overlap of fish and dabbling waterfowl using stable isotope analysis. Brook stickleback (Culaea inconstans) and pumpkinseed (Lipomis gibbosus) pose a potentially growing threat to …
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Antifungal invertebrate bioencapsulation: a potential solution to poor patient compliance
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Relationships between invertebrate detritivores and gut bacteria in marine systems
Aspects of the feeding strategies and digestive invertebrate-microbial interactions of two saltmarsh thalassinid detritivores, the mudprawn Upogebia africana (Ortmann) and the sandprawn Callianassa kraussi Stebbing were examined. Resources available in their respective habitats were investigated …
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Movement of radiophosphorous through the invertebrate community of a trout stream
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Fisheries and Wildlife, 1960
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Litter Breakdown And Benthic Invertebrate Detritivores From A Hydrologically Restored Stream
… study compared litter processing rates and macroinvertebrate detritivore assemblages between a hydrologically restored stream (Slabcamp Creek) and an un-restored control stream (White Pine Branch) in the Daniel Boone National Forest in Rowan Co., KY. Red maple (Acer rubrum) leaves were placed in …
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A Comparison of Light-Activated Enzymes From Vertebrate and Invertebrate Photoreceptors
The three themes of the thesis are: (1) the search for light-activated enzymes in octopus photoreceptors analogous to those found in vertebrates' photoreceptors, (2) the question of which photointermediate(s) of photoexcited rhodopsin activate bovine photoreceptor GTPase, and (3) the calcium and pH …
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