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 28 for “"Albatross"”.
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Individual variation in reproductive success in the wandering Albatross
To conserve threatened species it is important to protect the productive individuals, and so I aimed to identify factors accounting for individual-level variation in long-term reproductive success. I examined current breeding characteristics that might explain past reproductive performance amongst …
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Survival and reproduction in a biennially-breeding seabird : the Wandering Albatross
I studied a long-term data set for Wandering Albatrosses Diomedea exulans collected at sub-Antarctic Marion Island to investigate adult survival, breeding biology and factors affecting reproductive success of this long-lived pelagic seabird. Until recently, the complex adult life cycle has caused …
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Dynamic soaring beyond biomimetics: control of an albatross-inspired wind-powered system
Albatrosses extract their propulsive energy from horizontal winds in a maneuver called dynamic soaring, and travel impressive distance (5000 km/week) by "riding the winds". Accordingly, for albatrosses flight is barely more strenuous than rest. While thermal soaring, exploited by birds of prey and …
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Glucocorticoid physiology and behavior during life history transitions in Laysan Albatross (Phoebastria immutabilis)
… young animals) in a pelagic seabird, the Laysan Albatross (<italic>Phoebastria immutabilis</italic>).<p> First, I ask how physiology changes during incubation fasts over the entire 2-month incubation period. I found total corticosterone (CORT) increased both within individual incubation shifts …
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Glucocorticoid physiology and behavior during life history transitions in Laysan Albatross (Phoebastria immutabilis)
… young animals) in a pelagic seabird, the Laysan Albatross (<italic>Phoebastria immutabilis</italic>).<p> First, I ask how physiology changes during incubation fasts over the entire 2-month incubation period. I found total corticosterone (CORT) increased both within individual incubation shifts …
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Movement ecology and fisheries bycatch risk of albatross and large petrel species from Bird Island, South Georgia
… and the wealth of 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 …
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Hormone analyses of Black-Footed Albatross (Phoebastria Nigripes) at Midway Atoll NWR and Tern Island, Hawaiian Islands NWR
Black-footed albatross (Phoebastria nigripes) are among the many species of seabirds whose numbers are affected every year by anthropogenic impacts. Until now, no one has looked at the transfer of contaminants via soil to P. nigripes. However, studies have been done on how the Laysan albatross (P. …
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The population status, breeding success and foraging ecology of Phoebetria albatrosses on Marion Island
… various threats over the past few decades. Albatrosses are particularly at risk due to several factors, inter alia, accidental bycatch on fishing gear, ingestion of polluted marine debris, invasive predatory species at breeding sites, as well as climate change-induced alterations to ocean …
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'All This 'Pother About a Bird': Consciousness and Conscience in The Rime of The Ancient Mariner by S.T.Coleridge
… PhD consists of a novel entitled Shooting the Albatross and a thesis entitled 'All This ‘Pother About a Bird': Consciousness and Conscience in The Rime of The Ancient Mariner by S.T.Coleridge. The novel is an interpretation of The Rime of The Ancient Mariner in the context of the poem’s …
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Impacts of the introduced house mouse on the seabirds of Gough Island
… 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 2003, 2004 and 2006, respectively. …
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A Test of Rad Capture Sequencing on Ethanol-Preserved Centennial and Contemporary Specimens of Philippine Fishes
… historical fish samples collected by the USS <em>Albatross</em> expedition in the early 1900s in the Philippines and contemporary populations collected at the same localities. This study tests genetic protocols to process historical and contemporary DNA for simultaneous comparison. Two DNA library …
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The effects of human disturbance on the seabirds and seals at sub-Antarctic Marion Island
… research disturbance. The responses of wandering albatrosses (Diomedea exulans) and king penguins (Aptenodytes patagonicus) were investigated through standardised pedestrian approaches. Intensity of behavioural responses and levels of prolactin (females only) indicated that adult wandering …
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Causes and consequences of pair-bond disruption in socially monogamous species
… dynamics between the population of wandering albatross (Diomedea 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 …
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Causes and consequences of pair-bond disruption in socially monogamous species
… dynamics between the population of wandering albatross (Diomedea 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 …
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Co-existence in the Phoebetria albatrosses at Marion Island
… of the two closely related, normally allopatric, albatross species is investigated in their zone of overlap where interspecific competition for food resources and nesting space is likely to be most acute. Secondly, the genetic isolation of the two species is investigated, as co-existence implies …
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The effects of introduced mice on seabirds breeding at sub-Antarctic Islands
… of seabirds, including the endemic Tristan albatross Diomedea dabbenena. Further research concluded that mice can be devastating predators of seabirds on islands where they are the sole introduced mammal, because in the absence of competition and predation from larger introduced species, …
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Disease in Spheniscus penguins: Feather-loss disorder and Avian Pox
… similar to an Avipoxvirus found in Black-browed Albatross (Thalassarche melanophrys) from the Falkland Islands in 1987. This phylogentic proximity suggests a long-term circulation of seabird Avipoxviruses in the southwest Atlantic. The feather-loss disorder in captive African Penguin (Spheniscus …
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Rory lines : silver lining for seabirds in South Africa's demersal trawl fisheries
… on factory discards alongside the vessel. The Albatross Task Force (ATF) helped to develop and test a new device, the Rory Line (RL), to be used in conjunction with tori lines, and designed to reduce warp strikes by placing a physical barrier between the scupper (where factory discards are …
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