Document ID: chunk:federal_register_of_legislation:F2025L00287:reg:3:p173
Version: federal_register_of_legislation:F2025L00287
Segment Type: reg
Provision Reference: reg 3 (pt 173/276)
Character Range: 644646–650170

fragmentation of native vegetation through past land clearing                                          Almost certain (91–100%)  Extreme      Extreme
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                                      Almost certain (91–100%)  Major        Extreme
4. Degradation of native vegetation through current or future grazing                                              Unlikely (11–25%)         Negligible   Negligible
5. Lack of available nest sites                                                                                    Unlikely (11–25%)         Minor        Low
6. Predation by rodents                                                                                            Possible (26–50%)         Minor        Low
7. Predation by cats                                                                                               Unlikely (11–25%)         Major        Medium
8. Predation or damage by chickens                                                                                 Rare (0–10%)              Negligible   Negligible
9. Predation by swamphens                                                                                          Unlikely (11–25%)         Negligible   Negligible
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                                      Unlikely (11–25%)         Negligible   Negligible

Table 62 Risk assessment for Pterodroma solandri (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                                          Possible (26–50%)         Major        High
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                                      Possible (26–50%)         Moderate     Medium
4. Degradation of native vegetation through current or future grazing                                              Unlikely (11–25%)         Minor        Low
5. Lack of available nest sites                                                                                    Unlikely (11–25%)         Negligible   Negligible
6. Predation by rodents                                                                                            Possible (26–50%)         Minor        Low
7. Predation by cats                                                                                               Almost certain (91–100%)  Extreme      Extreme
8. Predation or damage by chickens                                                                                 Rare (0–10%)              Minor        Negligible
9. Predation by swamphens                                                                                          Unlikely (11–25%)         Negligible   Negligible
10. Predation by Argentine ant                                                                                     Likely (51–90%)           Major        High
11. Competition from/change of habitat because of weed invasion                                                    Unlikely (11–25%)         Negligible   Negligible
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                                      Unlikely (11–25%)         Minor        Low

Management actions
Protect and enhance nesting areas through revegetation efforts on Phillip Island. Retain status of pest-free Phillip Island through detection monitoring for introduced vertebrates and invertebrates. As Phillip Island represents a significant second world population, regular monitoring is required to detect significant changes. Every three years, a survey of breeding burrows on Phillip Island