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Rodent eradications undertaken on tropical islands are more likely to fail than eradications undertaken at higher latitudes. We report on 12 independent rodent eradication projects undertaken on tropical islands that utilized the results of an in situ bait availability study prior to eradication to inform, a priori, the bait application rate selected for the eradication. These projects also monitored bait availability during the eradication. The results from our analysis verified the utility of bait availability studies to future rodent eradication campaigns and confirmed the influence of two environmental factors that can affect bait availability over time: precipitation prior to the study and the abundance of land crabs at the study site. Our findings should encourage eradication teams to conduct in-depth assessments of the targeted island prior to project implementation. However, we acknowledge the limitations of such studies (two of the projects we reviewed failed and one removed only one of two rodent species present) and provide guidance on how to interpret the results from a bait availability study in planning an eradication. Study design was inconsistent among the twelve cases we reviewed which limited our analysis. We recommend a more standardized approach for measuring bait availability prior to eradication to provide more robust predictions of the rate at which bait availability will decrease during the eradication and to facilitate future comparisons among projects and islands.

French Polynesia is a veritable oasis of life, thousands of kilometers from the closest continent. The marine biodiversity is not itself exceptional, but the isolation of the Polynesia archipelagos has contributed to protecting resources and maintaining an abundant marine life. The clarity of the water contributes to the approachability of marine species. Observation of cetaceans by tourist operations began in the 1990s, and has now become a major commercial activity in French Polynesia.

French Polynesia is a veritable oasis of life, thousands of kilometers from the closest continent. The marine biodiversity is not itself exceptional, but the isolation of the Polynesia archipelagos has contributed to protecting resources and maintaining an abundant marine life. The clarity of the water contributes to the approachability of marine species. Observation of cetaceans by tourist operations began in the 1990s, and has now become a major commercial activity in French Polynesia.

French Polynesia is a veritable oasis of life, thousands of kilometers from the closest continent. The marine biodiversity is not itself exceptional, but the isolation of the Polynesia archipelagos has contributed to protecting resources and maintaining an abundant marine life. The clarity of the water contributes to the approachability of marine species. Observation of cetaceans by tourist operations began in the 1990s, and has now become a major commercial activity in French Polynesia.

French Polynesia is a veritable oasis of life, thousands of kilometers from the closest continent. The marine biodiversity is not itself exceptional, but the isolation of the Polynesia archipelagos has contributed to protecting resources and maintaining an abundant marine life. The clarity of the water contributes to the approachability of marine species. Observation of cetaceans by tourist operations began in the 1990s, and has now become a major commercial activity in French Polynesia.

French Polynesia is a veritable oasis of life, thousands of kilometers from the closest continent. The marine biodiversity is not itself exceptional, but the isolation of the Polynesia archipelagos has contributed to protecting resources and maintaining an abundant marine life. The clarity of the water contributes to the approachability of marine species. Observation of cetaceans by tourist operations began in the 1990s, and has now become a major commercial activity in French Polynesia.

PACC reports