Ground Control

Page No. Source Quotes from Decision Documents
487 5 Agency App. F “ongoing predation [during poisoning] managed by intensive trapping around nest trees”
488 3 Agency App. F “in non-treatment area, RCTI dropped to 11.5% in February 2002, with no significant differences between treatment and control by Feb 2002…decline in control block due to poisoning and trapping for fur”
498 3 Agency App. F “Predation was confirmed as the primary cause of most nest failures [of NI kokako, in areas with aerial 1080 followed by ground control over many years]
507 3 Agency App. F “Ship rats, stoats, possums [predators of Kereru]..ongoing predation noted after 1080 operation which achieved RTCI of 4.4% and rodent tracking index of 5% immediately after the operation..four years’ sustained ground control..including intensive trapping around nest trees..improved nesting for at least one season”
527 7 Agency App. F “[Abbey Rock..ground control with 1080] RTC <1% all species [of trees monitored] had low possum browse scores”
547 2 Agency App. G “The probability of Tb extinction within a given time did not vary substantially between aerial and ground-based..methods [in a research model]”
551 1 Agency App. G “The applicants advise that because aerial application provides such a low density of possums relative to ground takes longer for the possum population to recover to a density that requires further control”
552 1 Agency App. G “All sectors treated by both aerial and bait station application were found to have RTCI values below 3% [comparison of aerial versus ground application]”
762 1 Agency App. O “The applicant estimates areas of land that would not be treated under a cyanide/trapping scenario..but there is too little justification in the application for the Agency to evaluate this analysis”
778 1 Agency App. O (costs and time were reduced, and kill rates increased, when ground control (cyanide and traps) was supplemented with dogs)
911 1 Agency App. T: Submissions “We have proven that by encouraging coordinated and targeted trapping that possums (and rats as a by-product)..can be controlled to low numbers (using humane and kill traps) and harvesting a valuable resource”
133 2 Applicants’ references “Both [aerial 1080 and hunting] achieved kills of 80%. Patchy distribution with aerial drop; hunters made profit for half the total kill by averaging 8.2 possum skins/hr (selling skins)” (Morgan & Warburton, 1987)
198 1 Applicants’ references “Compared with aerial treatment, the amount of [1080 used in bait stations] was reduced by more than 90%” (Thomas, 1994)
198 2 Applicants’ references “..a mean possum kill of 83% could be achieved [using bait stations]..when Talon followed 1080 baiting..rat numbers were reduced a further 23%” (Thomas, 1998)
40 7 Committee Decision “If the use of 1080 were restricted to ground-based control, some known populations of highly threatened species could be protected”
41 3 Committee Decision “if 1080 were restricted to ground-based use only, it would be possible to protect known [bat] roosting sites from predation”
41 5 Committee Decision “Ground control operations could protect known populations [of lizards and frogs]”
42 3 Committee Decision “Ground-based control could be used to protect known locations of threatened species”
56 1 Committee Decision “well-managed ground control operations using 1080 present a relatively low risk to the environment and indigenous biodiversity”
68 1 Committee Decision “monitoring undertaken for [field] workers in ground-based operations indicates there is little risk of exposure to 1080”
73 3 Committee Decision “the concerns raised by iwi/Maori about the negative effects of..1080 relate largely to its aerial application”
77 1 Committee Decision “With ground-based control only, this adverse effect [of loss of opportunity to hunt] would not be realised”
80 1 Committee Decision “ happy to consider using deer repellent for all its operations in areas where hunting is undertaken”
81 2 Committee Decision “most of the conflict [between community and pest control agencies] rises from the aerial application of 1080 and this effect can be ameliorated (though not removed) by appropriate and meaningful consultation and dialogue”
84 1 Committee Decision “The Committee notes that [on-going suffering from a sub-lethal dose] applies to all vertebrate pest control methods”
87 2 Committee Decision “interest in possum fur (and high prices received) may mean this situation [possum fur not being considered a significant export earner] may change”
88 1 Committee Decision “trappers seeking the bounty would target easy areas first”
88 2 Committee Decision “with continued use of 1080 the number of possums available to the fur industry is not likely to decrease to the point where that industry becomes non-viable”
89 1 Committee Decision “While 1080 may be required to be used more extensively [as RHD mortality declines] it is unlikely to..reduce employment [of rabbit shooters]”
201 1 Decision App.B “[impact on fur industry]..Not assessed..most major aerial operations are on..areas that it is either impossible or very uneconomic to cover using ground control”