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 22 for “"fecal pellets"”.
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THE EFFECT OF RAIN ON INTERTIDAL ESTUARINE SEDIMENT TRANSPORT (VORTEX RINGS, OXYGENATION, DROP/SPLASH FEATURES, FECAL PELLETS)
<p>Storms are important aperiodic events, which intensify erosional processes over short time periods. The effect of rain on the shallow intertidal water column was the focus of this study. The literature was extensively reviewed to identify parallel research in other scientific disciplines, which …
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The chemistry, biology, and vertical flux of oceanic particulate matter
… particles, especially Foraminifera, Acantharia, fecal pellets, and fecal matter have been determined by LM and SEM. The particle distributions were controlled at all stations by processes of production, consumption, fragmentation, and aggregation. Maxima in organism abundance and particulate mass …
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A Role For Parasites in the Behavior of the Ozark Zigzag Salamander (Plethodon Angusticlavius)
… in the following test conditions: (a) fecal pellet of male with low parasite load versus fecal pellet of male with high parasite load, (b) fecal pellet of male with low parasite load versus control (chemical blank) pellet, and (c) fecal pellet of male with high parasite load versus …
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Ecology of the evening bat (<i>nycticeius humeralis</i>) at the northern edge of the range
… and two orders of arachnids were found in fecal pellets of evening bats; Coleoptera, Diptera, Hymenoptera, and Hemiptera composed 94% of dietary volume. Several insects consumed by evening bats are economically important.</p>
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Lietuvos požeminių grybų įvairovė, paplitimas ir saitai su smulkiaisiais žinduoliais /
… by raking the soil, an examination of the fecal pellets of small mammals) in total 29 species of hypogeous fungi have been ascertained in Lithuania. An annotated checklist of hypogeous fungi of Lithuania was compiled, fungal macro- and microstructures were illustrated with color …
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Population ecology, desiccation, and food resources with respect to angle of substrate for two limpets, Collisella (Acmaea) digitalis and Collisella (Acmaea) scabra
… may be important, such as food resources. Fecal pellets were used as a technique to study food resource partioning. Limpet size and abundance is related to the availability of microalgae on a particular slope of substrate. Differences in the amount of movement between the two species may …
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Biogenic gas occurrence in the Niobrara Formation, eastern Denver Basin, Colorado, USA
… low permeability and is comprised of chalk-rich fecal pellets and planktonic foraminifera. The structure in the eastern part of the Denver Basin is a gentle dipping bed to the west. However, some areas have a small structural closure and biogenic gas accumulation in high structures related to …
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The ecological energetics of the net-spinning caddisfly, Hydropsyche venularis Banks (Trichoptera: Hydropsychidae)
… are larger than the particles ingested. The fecal pellets are then available to other filter-feeders and deposit feeders. Higher consumption rates may therefore increase the efficiency of the ecosystem.
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Microfacies analysis of the lower paleocene beda formation in Western Concession 59 and Block 59F, Sirte Basin, Libya /
… echinoderms, bryozoans and charophytes. Fecal pellets and pelloids, along with the biotic allochems, contributed greatly to the composition of the various microfacies. Dolomite, where present, is finely crystalline and an early replacement product. Anhydrite occurs as nodular, chickenwire …
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Depositional system and source rock potential of the Sharon Springs Formation in Colorado
… in calcite content associated with chalk filled fecal pellets, to clay and quartz dominated deposits with a large constituent of pyrite. This interval has the potential to be a significant source rock where thermally mature, within the Denver and Piceance basins. Biomarker analyses on oil …
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The effects of mammalian herbivores on successional grasslands in central Illinois
… also collected and germinated plants from rabbit fecal pellets. Neither rabbit endozoochory nor rodent granivory affected plant communities in any successional stage. Rodents did not prefer larger seeds. Herbivory by rabbits and rodents influenced the plant communities more than did consumption or …
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Microbial glycerolipids in the global ocean: environmental controls and sinking flux dynamics
… amounts of sinking material derived from fecal pellets verse aggregates. The findings of this thesis extend our understanding of microbial biochemical adaptations to their environment and reveal controlling factors on glycerolipid cycling in the ocean system.
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Marine particle dynamics : sinking velocities, size distributions, fluxes, and microbial degradation rates
… sank more slowly than the rapidly sinking krill fecal pellets and diatom aggregates of the WAP. Moreover, the average sinking velocity did not follow a pattern of increasing velocities for the larger particles, a result contrary to what would be predicted from a simple formulation of Stokes’ Law. …
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Marine particle dynamics : sinking velocities, size distributions, fluxes, and microbial degradation rates
… sank more slowly than the rapidly sinking krill fecal pellets and diatom aggregates of the WAP. Moreover, the average sinking velocity did not follow a pattern of increasing velocities for the larger particles, a result contrary to what would be predicted from a simple formulation of Stokes' Law. …
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Status and Ecology of the Nilgiri Tahr in the Mukurthi National Park, South India
… I used micro-histological analysis on tahr fecal pellets to determine food habits. Grasses constituted 64.2% of their diet. Five plant species (Eulalia phaeothrix, Chrysopogon zeylanicus, Ischaemum rugosum, Andropogon sp., and Carex sp.) accounted for 84.6% of the tahr' diet. These species …
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Intrinsic Neural Control of Propulsion, Storage and Slow Transit in the Large Intestine.
… inhibitory reflex leads to slowed emptying of pellets in a naturally elongated colon. Electrophysiological studies in the empty murine colon revealed that each colonic MMC involves a stochastic process, whereby the firing of many myenteric ascending and descending interneurons becomes …
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Landscape genetics of northern bobwhite and swamp rabbits in Illinois
… 2007-2008. Tissue from trapped swamp rabbits and fecal pellets from swamp rabbit habitat were collected during 2004-2011 in the southernmost counties of Illinois. Microsatellite genetic markers were analyzed for each species. Bayesian clustering methods were used to find interbreeding groups. …
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Accelerated settling of particulate matter by ’marine snow’ aggregates
… form of aggregates with minor contributions of fecal pellets and solitary particles. Sinking speeds (m day-1), calculated by dividing the flux of aggregates (# m-2 day-1) by their abundance (# m-3), indicate that the larger (4-5mm) aggregates are flocculent and sink slowly (~1m day-1) while the …
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Stable isotope geochemistry of nitrogen in marine particulates
… with phytoplankton. Production of 14N -enriched fecal pellets is suggested as a mechanism for this trophic enrichment. In the surface waters, the δl5N of POM is similar to that of plankton. In the Peru Upwelling Area, the δ15N of POM from the oxygen-deficient waters decreases with increasing …
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Local impacts of White-nose Syndrome on the foraging ecology of insectivorous bats
… with the intent to maximize amplicon yield. Fecal pellets were collected in May and August of 2011 and 2016 from a maternity colony of Corynorhinus rafinesquii and stored in 95% ethanol at -80°C. Insect DNA was extracted on a per–pellet basis and amplified by PCR; reaction parameters and …
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