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dc.contributor.advisorHanley, Nick
dc.contributor.advisorCresswell, Will
dc.contributor.authorRoberts, Michaela Holly
dc.coverage.spatialxii, 246 p.en_US
dc.description.abstractEnvironmental degradation is accelerating worldwide, yet environmental conservation remains limited by funding. Tackling this limitation requires not only absolute increases in funding, but improved prioritisation of actions. On a global scale island ecosystems are of high priority, with invasive species one of their most significant threats. In this thesis I investigate prioritisation of invasive grazing species control, incorporating ecological, economic, and social concerns, on the island of Bonaire, Caribbean Netherlands. To enable the trade-off of potential grazer control options for their ecological impacts I modelled the relationship between of grazer density and vegetation, and watershed vegetation and the coral reef. I found negative relationships for goat and pig grazing with grass presence, and for donkey grazing with ground cover. Coral cover below 10m showed a positive relationship to ground cover, and, surprisingly, a negative relationship to tree biomass. Because conservation action is most likely to be sustainable when connected to funding, I conducted choice experiments with SCUBA divers, which estimated a positive willingness to pay for reef health improvements achieved using terrestrial grazer control. Through communication with local policy makers and practitioners I identified three options for grazer control, eradication, population reduction, or fencing, and estimated costs and social acceptability for each option. Though the ecological models predicted eradication to have the highest impacts on the terrestrial and marine ecosystem, lower costs and higher social acceptability identified fencing as the most suitable option for grazer control on Bonaire in the short term, with the potential to be funded through a fee on SCUBA divers. Through linking ecological, economic, and social considerations within a real world conservation context I illustrate the importance of looking beyond only ecological improvements when prioritising conservation action. This research is directly applicable to policy and practise on Bonaireen_US
dc.publisherUniversity of St Andrewsen
dc.subjectEnvironmental conservationen_US
dc.subjectEnvironmental economicsen_US
dc.subjectEnvironmental managementen_US
dc.subjectInvasive speciesen_US
dc.subject.lcshBiological invasions--Economic aspects--Bonaireen
dc.subject.lcshNature conservation--Bonaireen
dc.subject.lcshEnvironmental degradation--Bonaireen
dc.subject.lcshNon-governmental organizations--Bonaireen
dc.titleEnvironmental conservation across ecosystem boundaries : connecting management and fundingen_US
dc.contributor.sponsorNGO Echo Bonaireen_US
dc.type.qualificationnamePhD Doctor of Philosophyen_US
dc.publisher.institutionThe University of St Andrewsen_US

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