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Uptake and toxicity of clothianidin to monarch butterflies from milkweed consumption (ver. 2.0, January 2020)


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Bargar, T.A., 2019, Uptake and toxicity of clothianidin to monarch butterflies from milkweed consumption (ver. 2.0, January 2020): U.S. Geological Survey data release,


Recent concern for the adverse effects from neonicotinoid insecticides has centered on risk for insect pollinators in general and bees specifically. However, natural resource managers are also concerned about the risk of neonicotinoids to conservation efforts for the monarch butterfly (Danaus plexippus) and need a tool to estimate risk for wild monarch butterflies exposed to clothianidin. In the present study, monarch butterfly larvae were exposed to contaminated milkweed plants from hatch until pupation, and the effects upon larval survival, larval growth, pupation success, and adult mass were measured. Soils dosed with a granular insecticide product lead to average clothianidin concentrations of 10.8 - 843 ng/g in milkweed leaves, [...]


Point of Contact :
Timothy A Bargar
Originator :
Timothy A Bargar
Metadata Contact :
Timothy A Bargar
Publisher :
U.S. Geological Survey
SDC Data Owner :
Wetland and Aquatic Research Center
USGS Mission Area :
Environmental Health
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Original FGDC Metadata

34.02 KB application/fgdc+xml
Version history 2.0.txt 196 Bytes text/plain
count.csv 14.38 KB text/csv
concentration.csv 3.83 KB text/csv
adult.csv 544 Bytes text/csv
rate.csv 1.14 KB text/csv
larvae.csv 17.01 KB text/csv


The data were collected to determine the effect level for monarch larvae exposed to the neonicotinoid insecticide through their diet.



  • USGS Data Release Products
  • USGS Wetland and Aquatic Research Center



Revision 2.0 by Matt Cannister on January 31st, 2020. To review the changes that were made, see “Version 2.0.txt” in the attached files section.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9QX4OJW

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