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 7 of 7 for “"White-chinned Petrels"”.
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Long-term changes in the incidence and characteristics of plastic ingested by White-chinned Petrels
… due to its high spatial and temporal variation. White-chinned Petrels Procellaria aequinoctialis are surface-foraging seabirds found in the Southern Ocean that often ingest plastic. They are susceptible to being caught on fishing gear, providing large numbers of carcasses that can be used to …
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Using stable isotopes as a tool to understand the trophic relationships and movement of seabirds off Southern Africa
… demersus), Cape Gannets (Morus capensis) and White-chinned Petrels (Procellaria aequinoctiallis). The diets of captive penguins were varied to estimate the 15N turnover rates and discrimination factors of toenails and blood fractions. Plasma δ15N showed a faster turnover rate (7.6 ± 0.7 days) …
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The impact of longline fishing on the seabirds breeding on Marion Island
… that were breeding at the time they were killed. White-chinned petrels Procellaria aequinoctialis were killed most frequently, but albatrosses and giant petrels were also killed when lines were set in the daytime. Birds were killed almost exclusively during their breeding season, and albatrosses …
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The Sea is the Limit: Foraging Ecology of Breeding Antarctic Procellariiformes
… Here I compare the habitat preferences of Grey Petrels and White-chinned Petrels breeding at Gough Island and South Georgia, respectively. Using high-resolution remote sensing environmental data, I identify divergent foraging preferences in dynamic habitats. Finally, in Chapter 4, I compare …
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Understanding and mitigating seabird bycatch in the South African pelagic longline fishery
… recorded bycatch 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 …
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Moult as a dynamic link in the annual cycle of birds: insights from seabirds and a long-distance migratory raptor
… seabird species (Cape Gannet Morus capensis, White-chinned Petrel Procellaria aequinoctialis and Whitecapped/Shy Albatrosses Thalassarche steadi/cauta) and a long-distant migratory raptor (Amur Falcon Falco amurensis). My choice of study species was driven principally by the large data sets …
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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 …