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 32 for “"Petrel"”.
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Foraging Ecology & Conservation Physiology of the Mottled Petrel, Pterodroma inexpectata, with Applications for Maximising the Success of Petrel Conservation
… contribute to the successful recovery of mottled petrels (Pterodroma inexpectata), which has implications for other petrel species. This study consisted of two major components. Firstly, I conducted the only study to date of mottled petrel breeding biology and foraging ecology during the …
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Biology and conservation of the endangered Hawaiian Dark-rumped Petrel (Pterodroma phaeopygia sandwichensis)
The Hawaiian Dark-rumped Petrel or 'Ua'u is an endangered gadfly petrel that nests in the Hawaiian Islands and ranges throughout the central Pacific. The species was once common in Hawaii, with large colonies located on all the main islands, but its numbers have recently been reduced to several …
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The Ashy Petrel, OCEANODROMA HOMOCHROA, at its Breeding Grounds on the Farallon Islands, California
… are given as the type locality for the Ashy Petrel, Oceanodroma homochroa (Coues, 1864). Little of its biology has been studied, as information in the past has been limited to short period observations by visitors to off-shore islands along the California coast. Visitors of note were Cooper …
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SITE FORMATION AND CORROSION PROCESSES: A Comparative Analysis of Condor and Stormy Petrel Wreck Sites
… of the processes affecting Condor and Stormy Petrel. This knowledge can be used to inform management decisions regarding the preservation of valuable cultural resources and the longevity of those resources.
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Movement ecology and fisheries bycatch risk of albatross and large petrel species from Bird Island, South Georgia
… data collected on threatened albatross and large petrel species breeding at Bird Island, South Georgia, to investigate variation in spatial ecology and fisheries bycatch risk across multiple life-stages and species. In Chapter 1, I introduce the main topics of this thesis. In Chapters 2-4, I …
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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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Phylogeny and phylogeography of four southern ocean petrels
… the phylogeography of four southern ocean petrel species in an attempt to resolve taxonomic uncertainties and phylogeography in these species. A large proportion of petrel and albatross species are listed as threatened under Red List criteria, in many cases as a result of threats at sea. …
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Assessing long-term changes in chironomid assemblages linked to past fluctuations in Leach’s Storm-Petrel populations on islands in the Western Atlantic Ocean
… in the seabird colony size of the Leach’s Storm-Petrel in ponds located off the Canadian East coast on Baccalieu Island, Newfoundland, and Grand Colombier Island, Saint Pierre and Miquelon, France, to qualitatively reconstruct past changes in dissolved oxygen conditions, and thereby indirectly …
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Ecology and conservation of albatrosses and petrels at sea off Brazil
… I investigated Procellariiformes (albatrosses, petrels and shearwaters) at sea in the southwestern Atlantic Ocean. Fourteen species and 301 individuals were sampled non-destructively using a cast net method described here. A method is described for ageing Atlantic Yellow-nosed (Thalassarche …
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Impacts of the introduced house mouse on the seabirds of Gough Island
… suspected of widespread predation of Atlantic Petrel Pterodroma incerta and Tristan Albatross Diomedia dabbenena chicks in 2000/01. Video cameras recorded six fatal attacks by mice on live, healthy Atlantic Petrel chicks in 2004. Crude estimates of annual breeding success were 47%, 7% and 7% in …
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The effects of introduced mice on seabirds breeding at sub-Antarctic Islands
… however, is that the density of burrow-nesting petrels is much higher on Gough Island because Marion Island’s petrel populations were greatly reduced by cats, which were introduced in 1948 and eradicated by 1991. In the early 2000s, researchers on Gough Island identified mouse predation as the …
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Dispersion of seabirds at sea in the Southern Ocean
… associated with the distribution of the Snow Petrel Pagodroma nivea and the Antarctic Petrel Thalassoica antarctica were investigated in greater detail. Statistical relationships between the species' occurrence and measured oceanographic and meteorological features are inconclusive. …
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Causes and consequences of pair-bond disruption in socially monogamous species
… exulans) breeding in sub-Antarctica and the snow petrel (Pagodroma nivea) breeding in Antarctica. In wandering albatross, divorceis nonadaptive with no improvement in breeding success, while divorce triggered by breeding failure is adaptive in Snow Petrels, resulting in a higher subsequent …
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Causes and consequences of pair-bond disruption in socially monogamous species
… exulans) breeding in sub-Antarctica and the snow petrel (Pagodroma nivea) breeding in Antarctica. In wandering albatross, divorce is nonadaptive with no improvement in breeding success, while divorce triggered by breeding failure is adaptive in Snow Petrels, resulting in a higher subsequent …
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Aspectos da biologia reprodutiva de Pterodroma arminjoniana (Giglioli & Salvadori,1869) (Aves: Procellariidae) na ilha da Trindade, Atlântico Sul
The Trindade Petrel Pterodroma arminjoniana (Giglioli & Salvadori, 1869), the only representative of the genus to breed in Brazil, was studied at the oceanic island of Trindade, South Atlantic (20º 30' S, 29º 19' W), between 1988 and 1993. According to the results obtained after 1270 hours of …
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Understanding and mitigating seabird bycatch in the South African pelagic longline fishery
… species off South Africa, the white-chinned petrel (Procellaria aequinoctialis), is investigated. An understanding of the foraging ecology of commonly recorded bycatch species enhances our understanding of seabird bycatch and helps to improve the design of current and future mitigation …
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The sedimentology and stratigraphy of Salt Creek Field, Kent County, Texas
… detail sedimentologically, 3D reservoir model in Petrel integrated with 3D seismic data, and more than 250 wireline logs allowed the construction of the stratigraphic model. The reservoir is mid-late Pennsylvanian units composed of four composite sequences (Canyon-Cisco) in age, three of which are …
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Offshore El Salvador: the first interpretation of a unique 2-D seismic dataset and implications for a working petroleum system in a forearc basin setting
… Corvina-2 well offshore Nicaragua, and the Esso Petrel-1 and Madre Vieja-1 offshore Guatemala aid in constraining lithological data in the region. Maturity data from regional studies indicate that source rock intervals have reached a stage of thermal maturity below a depth of 3,000m. Basin …
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Implications for gas hydrate occurrence : 3D thermobaric modelling of central Spitsbergen
… industry-standard support through Schlumberger's Petrel front-end. Although uncertainties in local temperature and pressure regimes prevent higher-order assessments, a strong correlation is observed between GHSZ and base permafrost. On a regional scale, the vertical extent of the GHSZ is most …
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Tectonostratigraphic evolution of the offshore Gippsland Basin, Victoria, Australia: results from 3D seismic interpretation and 2D section restoration, The
… by angular unconformities. Schlumberger's Petrel software package has been used to structurally and stratigraphically interpret a basin-wide 3D seismic data set provided by the Australian Government (Geoscience Australia) and four 2D kinematic reconstruction/restorations through the basin …
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