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 116 for “"Burrowing"”.
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The Burrowing Barnacles (Cirripedia, Acrothoracica) of South Africa
… unequivocal records of living acrothoracicans burrowing into coralline red algae. Further inspections of coralline algae in this and other regions will likely reveal many more new host records and possibly new acrothoracican species. In Chapter 2 a systematic account and key to all known South …
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Biologically Inspired Mechanisms for Burrowing in Undersea Substrates
… lightweight, low-energy, reversible, and dynamic burrowing systems for use in subsea applications such as anchoring, oil recovery, underwater cable installation, mine detonation, and sensor placement. As many organisms have evolved to embed themselves within undersea substrates, unsurprisingly, …
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Ecological segregation of burrowing petrels (Procellariidae) at Marion Island
1. Eight burrowing petrel species were found nesting within the area studied in north-eastern Marion Island during April 1979 to May 1980. These were Salvin's Prion Pachyptila vittata salvini, Blue Petrel Halobaena caerulea, Greatwinged Petrel Pterodroma macroptera, Kerguelen Petrel Pterodroma …
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Observations on the breeding ecology of burrowing Owls in Saskatchewan
Observations regarding breeding biology of burrowing owls (Athene cunicularia) were collected on 98 breeding pairs during 1982 and 1983. Pairs of owls were first observed on the study area in late April with clutch initiation beginning in mid-May. Overall nest success averaged 59 percent with 2.6 …
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Ecology and behaviour of burrowing prawns and their burrow symbionts
… Marine soft-sediment ecosystems are dominated by burrowing engineers which indirectly create biogenic structures that often attract other species, often leading to the evolution of symbiotic relationships. Engineered structures provide non-trophic (e.g. refuge) and trophic functions (e.g. food) …
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Burrowing Owl Distribution and Nest Site Selection in Western South Dakota
The burrowing owl (Athene cunicularia) is a species of conservation concern in South Dakota. The species’ range in the state is reduced from its historical extent, and it is now mostly restricted to the counties west of the Missouri River, where it usually nests in black-tailed prairie dog (Cynomys …
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Effects of burrowing sandprawns (Callichirus kraussi) on urban estuarine water quality
… been shown to mitigate eutrophication. However, burrowing endobenthic organisms have not yet been considered as a NBS, despite their potential to greatly impact water quality. Therefore, the purpose of this study was to determine whether these endobenthic organisms could be effective as NBSs, …
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Exploring the timescale limitations of RoboClam : a biologically inspired burrowing robot
… an order of magnitude less energy to dig to its burrowing depth than would be expected if it were moving through static soil. This technology is a mechanically simple solution to reduce energy requirements in applications such as anchoring and underwater pipe installation. RoboClam is a robot …
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Burrowing and feeding ecology of the ghost shrimp Biffarius arenosus (Decapoda: Callianassidae)
… Australia. This thesis investigated the burrowing and feeding ecology of a population of shrimps inhabiting an intertidal sandflat in Western Port, Victoria.
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The Effect of Flow on Burrowing in Juvenile Freshwater Mussels (Bivalvia, Unionidae)
<p>Burrowing is a significant factor in the survival of freshwater mussels; it helps to prevent dislodgement from the sediment, and it reduces the risk of predation. In this study the burial time and orientation of juvenile mussels were tested in response to flow and substrate in a recirculating …
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Design of a biologically-inspired underwater burrowing robot with on-board actuation
… fluidizing the surrounding soil and reducing burrowing drag. Moving through a fluidized, rather than static, soil requires energy that scales linearly with depth, rather than depth squared. In addition to providing an advantage for the animal, localized fluidization may provide significant …
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The design of scaled robotic end effectors to mimic razor clam burrowing
… improvement over existing subsea burrowing and anchoring technologies.
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The Biology of Spaeroma Terebrans in Lake Pontchartrain, Louisiana with Emphasis on Burrowing
Sphaeroma terebrans (Bate 1866) is an economically and ecologically important cosmopolitan species because this isopod is found burrowed in wood and marine structures of fresh to saline water. Existing literature on S. terebrans focuses on the destruction of red mangrove (Rhizophora mangle) in …
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The Influence of The Burrowing Mammal Tamias Striatus on The Soil Creep Process
… Tamias striatus, was used as a representative burrowing animal to investigate the effect which organisms have on geomorphic slope processes in east central Illinois, U.S.A. Soil creep measurements were made on both a short-term (biweekly) and a long-term (one year) basis, using t-bars and Young …
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Distribution, phylogenetics and habitat associations of a burrowing crayfish species complex in Illinois
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01
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The Effects of Simulated <i> Spermophilus Franklinii </i> Burrowing on Prairie Soil Invertebrate Communities
<p>Burrowing of subterranean mammals can have ecological effects on overlying vegetation, invertebrate communities, and surrounding soil characteristics. Franklin’s ground squirrel (<em>Spermophilus franklinii</em>) is a declining, tunneling mammal species previously found throughout Central …
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Impacts of burrowing sandprawns (Kraussillichirus kraussi) on water quality, phytoplankton and pelagic bacterial assemblages
… and management issue that requires addressing. Burrowing sandprawns (Kraussillichirus kraussi) have been shown in past research to improve water quality by removing microalgae from the water column. Their burrows are thought to act as biofiltration systems, with water-borne phytoplankton …
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