Managing the risk of exotic vertebrate incursions in Australia

摘要: Context Biological invasions are a profound contribution to human-induced environmental change. Although intentional introductions of vertebrate species have largely declined, global transport and communication networks continue increase. As consequence, more goods being traded the type transported has changed, as well associated risks. Aims To analyse frequency, provide risk assessments, for exotic detected by border post-border Australian biosecurity agencies in past decade (1999–2010). Methods We collated detection records emailing or telephoning representatives from responsible implementing biosecurity. calculated successful establishment (low, moderate, serious, extreme) 137 identified not currently established Australia. Generalised linear models were constructed test whether frequency increasing was with either differences between classes and/or different categories. Key results The majority reported illegal keeping. Individual assessments revealed that reptiles likely be greater future than birds, mammals amphibians. Controlling taxonomy, high-risk involved larger (i.e. number individuals) incidents lower-risk species. Across years, novel ‘at large’ Australia significantly increased. Conclusions Several attributes give them potential become pests Preventing incursions is far most cost-effective way prevent pest damage. Implications It clear nationally coordinated framework data collection sharing among urgently required. present minimum inter-agency data, necessary assess monitor ongoing