Document ID: chunk:federal_register_of_legislation:F2025L00287:reg:3:p168
Version: federal_register_of_legislation:F2025L00287
Segment Type: reg
Provision Reference: reg 3 (pt 168/276)
Character Range: 628930–634161

Unlikely (11–25%)         Negligible   Negligible
6. Predation by rodents                                                                                            Possible (26–50%)         Extreme      High
7. Predation by cats                                                                                               Unlikely (11–25%)         Extreme      Medium
8. Predation or damage by chickens                                                                                 Rare (0–10%)              n/a          n/a
9. Predation by swamphens                                                                                          Likely (51–90%)           Extreme      Extreme
10. Predation by Argentine ant                                                                                     Likely (51–90%)           Major        High
11. Competition from/change of habitat because of weed invasion                                                    Unlikely (11–25%)         Minor        Low
12. Infection by pathogens already present                                                                         Unlikely (11–25%)         Negligible   Negligible
13. Impacts of potential new invasive species or pathogens                                                         Possible (26–50%)         Unknown      Unknown
14. Changes to vegetation, increased fire risk and/or direct physiological stress as a result of climatic changes  Likely (51–90%)           Major        High
15. Problems caused by small populations, including lack of genetic diversity                                      Likely (51–90%)           Moderate     Medium

Table 59 Risk assessment for Pterodroma neglecta neglecta (if range expanded to include Norfolk Island)
Risk                                                                                                               Likelihood of exposure    Consequence  Threat rating
1. Loss and fragmentation of native vegetation through past land clearing                                          Unlikely (11–25%)         Minor        Low
2. Loss and fragmentation of native vegetation through current or future land clearing                             Unlikely (11–25%)         Negligible   Negligible
3. Degradation of native vegetation through past grazing or loss of nutrients                                      Unlikely (11–25%)         Negligible   Negligible
4. Degradation of native vegetation through current or future grazing                                              Unlikely (11–25%)         Negligible   Negligible
5. Lack of available nest sites                                                                                    Unlikely (11–25%)         Negligible   Negligible
6. Predation by rodents                                                                                            Almost certain (91–100%)  Extreme      Extreme
7. Predation by cats                                                                                               Almost certain (91–100%)  Extreme      Extreme
8. Predation or damage by chickens                                                                                 Rare (0–10%)              Negligible   Negligible
9. Predation by swamphens                                                                                          Likely (51–90%)           Major        High
10. Predation by Argentine ant                                                                                     Likely (51–90%)           Major        High
11. Competition from/change of habitat because of weed invasion                                                    Unlikely (11–25%)         Minor        Low
12. Infection by pathogens already present                                                                         Unlikely (11–25%)         Negligible   Negligible
13. Impacts of potential new invasive species or pathogens                                                         Possible (26–50%)         Unknown      Unknown
14. Changes to vegetation, increased fire risk and/or direct physiological stress as a result of climatic changes  Likely (51–90%)           Major        High
15. Problems caused by small populations, including lack of genetic diversity                                      Likely (51–90%)           Moderate     Medium

Management actions
Continue control of swamphens on Phillip Island, including maintaining the shooting regime on Phillip Island that was implemented in 2020–21 to reduce nest predation. Protect nesting areas through appropriate weed control and revegetation. Undertake removal and replacement of decrepit nesting structures for seabirds on Phillip Island. Retain status of pest-free Phillip Island through implementation of comprehensive biosecurity procedures (quarantine, surveillance and incursion readiness and response).
Conduct annual monitoring of a subset (≥ 30) of known nesting sites during four targeted site visits annually to provide a measure of breeding success. Every three years, conduct bi-monthly nest monitoring, over a minimum of three nights of four-hour search sessions, to provide an estimate of population size and colony expansion. Near-fledged