| Abstract: | The relationship between total cholinesterase activity (TChE) and mortality in four butterfly species (great southern white [Ascia monuste], common buckeye [Junonia coenia], painted lady [Vanessa cardui], and julia butterflies [Dryas julia]) was investigated. Acute contact toxicity studies were conducted to evaluate the response (median lethal dose [LD50] and TChE) of the four species following exposure to the organophosphate insecticide naled. The LD50 for these butterflies ranged from 2.3 to 7.6 μg/g. The average level of TChE inhibition associated with significant mortality ranged from 26 to 67%, depending on the species. The lower bounds of normal TChE activity (2 standard deviations less than the average TChE for reference butterflies) ranged from 8.4 to 12.3 μM/min/g. As a percentage of the average reference TChE activity for the respective species, the lower bounds were similar to the inhibition levels associated with significant mortality, indicating there was little difference between the dose resulting in significant TChE inhibition and that resulting in mortality. |
| Genre: | Article |
| ProdID: | 70040557 |
| Citation Author: | Bargar, Timothy A. |
| Citation Contributing Office: | Southeast Ecological Science Center |
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| Citation End Page: | 2129 |
| Citation Issue: | 9 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Toxicology and Chemistry |
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| Citation Month: | 9 |
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| Citation Phsyical Description: | 6 p. |
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| Citation Publisher: | Wiley |
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| Citation Search Results Text: | The relationship between total cholinesterase activity and mortality in four butterfly species; 2012; Article; Journal; Environmental Toxicology and Chemistry; Bargar, Timothy A. |
| Citation Start Page: | 2124 |
| Citation Volume: | 31 |
| Citation Year: | 2012 |
| Type: | citation/reference |
| Text: | The relationship between total cholinesterase activity and mortality in four butterfly species; 2012; Article; Journal; Environmental Toxicology and Chemistry; Bargar, Timothy A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1002/etc.1927 |
| Date Other: | Wed, 31 Oct 2012 00:00 -0500 |
| Publisher: | Wiley |
