Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis

Reducing populations of invasive lizards through trapping and shooting is feasible in many cases but effective integrated management relies on a variety of tools, including toxicants. In Florida, using wild-caught non-native black spiny-tailed iguanas Ctenosaura similis, we screened acetaminophen an...

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Main Author: Michael L. AVERY, John D. EISEMANN, Kandy L. KEACHER,Peter J. SAVARIE
Format: Article
Language:English
Published: Oxford University Press 2011-10-01
Series:Current Zoology
Subjects:
Online Access:http://www.currentzoology.org/paperdetail.asp?id=11937
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author Michael L. AVERY, John D. EISEMANN, Kandy L. KEACHER,Peter J. SAVARIE
author_facet Michael L. AVERY, John D. EISEMANN, Kandy L. KEACHER,Peter J. SAVARIE
author_sort Michael L. AVERY, John D. EISEMANN, Kandy L. KEACHER,Peter J. SAVARIE
collection DOAJ
description Reducing populations of invasive lizards through trapping and shooting is feasible in many cases but effective integrated management relies on a variety of tools, including toxicants. In Florida, using wild-caught non-native black spiny-tailed iguanas Ctenosaura similis, we screened acetaminophen and zinc phosphide to determine their suitability for effective population management of this prolific invasive species. Of the animals that received acetaminophen, none died except at the highest test dose, 240 mg per lizard, which is not practical for field use. Zinc phosphide produced 100% mortality at dose levels as little as 25 mg per lizard, equivalent to about 0.5% in bait which is lower than currently used in commercial baits for commensal rodent control. We conclude that zinc phosphide has potential as a useful tool for reducing populations of invasive lizards such as the black spiny-tailed iguana provided target-selective delivery methods are developed [Current Zoology 57 (5): 625–629, 2011].
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spelling doaj.art-be4e54bac6da4d35aa88bd350d35c7552022-12-22T01:21:49ZengOxford University PressCurrent Zoology1674-55072011-10-01575625629Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similisMichael L. AVERY, John D. EISEMANN, Kandy L. KEACHER,Peter J. SAVARIEReducing populations of invasive lizards through trapping and shooting is feasible in many cases but effective integrated management relies on a variety of tools, including toxicants. In Florida, using wild-caught non-native black spiny-tailed iguanas Ctenosaura similis, we screened acetaminophen and zinc phosphide to determine their suitability for effective population management of this prolific invasive species. Of the animals that received acetaminophen, none died except at the highest test dose, 240 mg per lizard, which is not practical for field use. Zinc phosphide produced 100% mortality at dose levels as little as 25 mg per lizard, equivalent to about 0.5% in bait which is lower than currently used in commercial baits for commensal rodent control. We conclude that zinc phosphide has potential as a useful tool for reducing populations of invasive lizards such as the black spiny-tailed iguana provided target-selective delivery methods are developed [Current Zoology 57 (5): 625–629, 2011].http://www.currentzoology.org/paperdetail.asp?id=11937AcetaminophenBlack spiny-tailed iguanaCtenosaura similisFloridaInvasiveZinc phosphide
spellingShingle Michael L. AVERY, John D. EISEMANN, Kandy L. KEACHER,Peter J. SAVARIE
Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis
Current Zoology
Acetaminophen
Black spiny-tailed iguana
Ctenosaura similis
Florida
Invasive
Zinc phosphide
title Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis
title_full Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis
title_fullStr Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis
title_full_unstemmed Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis
title_short Acetaminophen and zinc phosphide for lethal management of invasive lizards Ctenosaura similis
title_sort acetaminophen and zinc phosphide for lethal management of invasive lizards ctenosaura similis
topic Acetaminophen
Black spiny-tailed iguana
Ctenosaura similis
Florida
Invasive
Zinc phosphide
url http://www.currentzoology.org/paperdetail.asp?id=11937
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