Non-target species mortality and the measurement of brodifacoum rodenticide residues after a rat (Rattus rattus) eradication on Palmyra Atoll, tropical Pacific
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Published source details
Pitt W.C., Berentsen A.R., Shiels A.B., Volker S.F., Eisemann J.D., Wegmann A.S. & Howald G.R. (2015) Non-target species mortality and the measurement of brodifacoum rodenticide residues after a rat (Rattus rattus) eradication on Palmyra Atoll, tropical Pacific. Biological Conservation, 185, 36-46.
Published source details Pitt W.C., Berentsen A.R., Shiels A.B., Volker S.F., Eisemann J.D., Wegmann A.S. & Howald G.R. (2015) Non-target species mortality and the measurement of brodifacoum rodenticide residues after a rat (Rattus rattus) eradication on Palmyra Atoll, tropical Pacific. Biological Conservation, 185, 36-46.
Summary
Control mammalian predators on islands for seabirds
A study in 2011 on Palmyra Atoll in the Pacific Ocean (Pitt et al. 2015) reported that after applying rodenticide to eradicate black rats Rattus rattus, rodenticide was not detected in red-footed booby Sula sula carcass. Rodenticide was below detectable levels in both a whole-body and liver-only sample. Rodenticide (Brodifacoum 25W: Conservation) was spread across the island in July 2011 (3 doses, 72–80 kg/ha/dose, most spread by helicopter). One red-footed booby carcass, with an unknown cause of death, was collected in the 22 days after rodenticide application began.
A study in 2011 on Palmyra Atoll in the Pacific Ocean (Pitt et al. 2015) reported that after applying rodenticide to eradicate black rats Rattus rattus, rodenticide was not detected in sooty tern Onychoprion fuscatus or black noddy Anous minutus carcasses. Rodenticide was below detectable levels in both whole-body and liver-only samples. Rodenticide (Brodifacoum 25W: Conservation) was spread across the island in July 2011 (3 doses, 72–80 kg/ha/dose, most spread by helicopter). Three carcasses, with unknown causes of death, were collected in the 22 days after rodenticide application began.
Control mammalian predators on islands for wildfowl
A study in 2011 on Palmyra Atoll in the Pacific Ocean (Pitt et al. 2015) reported that after applying rodenticide to eradicate black rats Rattus rattus, a northern pintail Anas acuta carcass was found with low but detectable levels of rodenticide. The rodenticide concentration was 0.06 µg/g in the liver, and <0.01 µg/g across the whole body. The paper suggests a lethal dose is around 0.1–0.5 µg/g. Rodenticide (Brodifacoum 25W: Conservation) was spread across the island in July 2011 (3 doses, 72–80 kg/ha/dose, most spread by helicopter). Bird carcasses were collected across the island over the 22 days after rodenticide application began.
Output references
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