Angela Bartlett

Angela Bartlett

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Angela Bartlett
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Start Year

2018 (Cohort 5)

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PhD Project
PhD Title
The Future of Alien Invasions: modelling the impact of rates of introduction, and introduction bias, on the richness and composition of alien assemblages.
Research Theme
Primary Supervisor

Jane Catford

Primary Institution
Secondary Supervisor

Tim Blackburn

Secondary Institution

Translocation of species to locations beyond their native biogeographic boundaries is a defining feature of the Anthropocene. These species, termed aliens, can cause far-reaching ecological, environmental and socio-economic impacts. Despite well-known impacts, introduction of alien species is intensifying worldwide with globalisation. Furthermore, changing demands and expanding trade and transport are introducing new types of species to new areas. New introductions pose a problem for biosecurity, which relies on information about traits of past invaders, as species and the locations they are introduced to are biased by human decisions. Thus, existing measures can fail to identify new high-risk species. In addition, increased rates of introductions (numbers and magnitude of species) increases the likelihood of establishment of alien species. It is therefore critical to understand and quantify the sequential stages of alien invasions, particularly introduction and establishment, to target interventions. This research uses theory and empirical data, for vertebrates and plants, to investigate the impacts of introduction rates and biases on the richness and composition of alien assemblages. The findings will be used to develop predictive models to identify (1) which species are likely to become invasive and (2) geographic locations vulnerable to invasion under different future scenarios to inform biosecurity measures.

Policy Impact
Background Reading


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