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The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island
Prey availability is often the driver behind predator population trends, diet and breeding success. Changes in predator abundance and breeding success represent numerical responses to changes in prey abundance, whereas dietary shifts can be classified as functional responses. Invasive mammals introd...
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| Format: | Thesis |
| Language: | English |
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Percy FitzPatrick Institute of African Ornithology
2014
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| _version_ | 1867613217883160577 |
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| access_status_str | Open Access |
| author | Cerfonteyn, Mia Elizabeth |
| author2 | Ryan, Peter G |
| author_browse | Cerfonteyn, Mia Elizabeth Ryan, Peter G |
| author_facet | Ryan, Peter G Cerfonteyn, Mia Elizabeth |
| author_sort | Cerfonteyn, Mia Elizabeth |
| collection | Thesis |
| description | Prey availability is often the driver behind predator population trends, diet and breeding success. Changes in predator abundance and breeding success represent numerical responses to changes in prey abundance, whereas dietary shifts can be classified as functional responses. Invasive mammals introduced to island ecosystems can have detrimental impacts on endemic bird populations and thus disrupt predator-prey relationships. In cases where a predator is dependent on a certain prey species, the distribution, abundance, breeding success and diet of a predator can reveal disruptions in their prey abundance and density. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/6603 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:38.580Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Percy FitzPatrick Institute of African Ornithology |
| publisherStr | Percy FitzPatrick Institute of African Ornithology |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/6603 The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island Cerfonteyn, Mia Elizabeth Ryan, Peter G Prey availability is often the driver behind predator population trends, diet and breeding success. Changes in predator abundance and breeding success represent numerical responses to changes in prey abundance, whereas dietary shifts can be classified as functional responses. Invasive mammals introduced to island ecosystems can have detrimental impacts on endemic bird populations and thus disrupt predator-prey relationships. In cases where a predator is dependent on a certain prey species, the distribution, abundance, breeding success and diet of a predator can reveal disruptions in their prey abundance and density. 2014-08-20T14:29:11Z 2014-08-20T14:29:11Z 2013 Master Thesis Masters MSc http://hdl.handle.net/11427/6603 eng application/pdf Percy FitzPatrick Institute of African Ornithology Faculty of Science University of Cape Town |
| spellingShingle | Cerfonteyn, Mia Elizabeth The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island |
| thesis_degree_str | Master's |
| title | The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island |
| title_full | The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island |
| title_fullStr | The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island |
| title_full_unstemmed | The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island |
| title_short | The population status, breeding success and diet of Subantarctic Skuas two decades after the feral cat eradication on Marion Island |
| title_sort | population status breeding success and diet of subantarctic skuas two decades after the feral cat eradication on marion island |
| url | http://hdl.handle.net/11427/6603 |
| work_keys_str_mv | AT cerfonteynmiaelizabeth thepopulationstatusbreedingsuccessanddietofsubantarcticskuastwodecadesaftertheferalcateradicationonmarionisland AT cerfonteynmiaelizabeth populationstatusbreedingsuccessanddietofsubantarcticskuastwodecadesaftertheferalcateradicationonmarionisland |