Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere
Migratory shorebirds frequently forage and roost in agricultural habitats, where they may be exposed to cholinesterase-inhibiting pesticides. Exposure to organophosphorus and carbamate compounds, common anti-cholinesterases, can cause sublethal effects, even death. To evaluate exposure of migratory...
| Main Authors: | , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Oxford Academic Press
2019
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| Online Access: | https://academic.oup.com/condor/article/112/1/15/5152507 http://hdl.handle.net/20.500.12123/6483 https://doi.org/10.1525/cond.2010.090026 |
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| author | Strum, Khara M. Hooper, Michael J. Johnson, Kevin A. Lanctot, Richard B. Zaccagnini, Maria Elena Sandercock, Brett K. |
| author_browse | Hooper, Michael J. Johnson, Kevin A. Lanctot, Richard B. Sandercock, Brett K. Strum, Khara M. Zaccagnini, Maria Elena |
| author_facet | Strum, Khara M. Hooper, Michael J. Johnson, Kevin A. Lanctot, Richard B. Zaccagnini, Maria Elena Sandercock, Brett K. |
| author_sort | Strum, Khara M. |
| collection | INTA Digital |
| description | Migratory shorebirds frequently forage and roost in agricultural habitats, where they may be exposed to cholinesterase-inhibiting pesticides. Exposure to organophosphorus and carbamate compounds, common anti-cholinesterases, can cause sublethal effects, even death. To evaluate exposure of migratory shorebirds to organophosphorus and carbamates, we sampled birds stopping over during migration in North America and wintering in South America. We compared plasma Cholinesterase activities and body masses of individuals captured at sites with no known sources of organophosphorus or carbamates to those captured in agricultural areas where agrochemicals were recommended for control of crop pests. In South America, plasma acetylcholinesterase and butyrylcholinesterase activity in Buff-breasted Sandpipers was lower at agricultural sites than at reference sites, indicating exposure to organophosphorus and carbamates. Results of plasma Cholinesterase reactivation assays and foot-wash analyses were inconclusive. A meta-analysis of six species revealed no widespread effect of agricultural chemicals on Cholinesterase activity. However, four of six species were negative for acetylcholinesterase and one of six for butyrylcholinesterase, indicating negative effects of pesticides on Cholinesterase activity in a subset of shorebirds. Exposure to Cholinesterase inhibitors can decrease body mass, but comparisons between treatments and hemispheres suggest that agrochemicals did not affect migratory shorebirds' body mass. Our study, one of the first to estimate of shorebirds' exposure to cholinesterase-inhibiting pesticides, suggests that shorebirds are being exposed to cholinesterase-inhibiting pesticides at specific sites in the winter range but not at migratory stopover sites. Future research should examine potential behavioral effects of exposure and identify other potential sites and levels of exposure. |
| format | Artículo |
| id | INTA6483 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Oxford Academic Press |
| publisherStr | Oxford Academic Press |
| record_format | dspace |
| spelling | INTA64832019-12-11T13:04:42Z Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere Strum, Khara M. Hooper, Michael J. Johnson, Kevin A. Lanctot, Richard B. Zaccagnini, Maria Elena Sandercock, Brett K. Aves Especies Migratorias Colinesterasa Plaguicidas Contaminantes Migratory Species Cholinesterase Pesticides Pollutants Aves Playeras Migratory shorebirds frequently forage and roost in agricultural habitats, where they may be exposed to cholinesterase-inhibiting pesticides. Exposure to organophosphorus and carbamate compounds, common anti-cholinesterases, can cause sublethal effects, even death. To evaluate exposure of migratory shorebirds to organophosphorus and carbamates, we sampled birds stopping over during migration in North America and wintering in South America. We compared plasma Cholinesterase activities and body masses of individuals captured at sites with no known sources of organophosphorus or carbamates to those captured in agricultural areas where agrochemicals were recommended for control of crop pests. In South America, plasma acetylcholinesterase and butyrylcholinesterase activity in Buff-breasted Sandpipers was lower at agricultural sites than at reference sites, indicating exposure to organophosphorus and carbamates. Results of plasma Cholinesterase reactivation assays and foot-wash analyses were inconclusive. A meta-analysis of six species revealed no widespread effect of agricultural chemicals on Cholinesterase activity. However, four of six species were negative for acetylcholinesterase and one of six for butyrylcholinesterase, indicating negative effects of pesticides on Cholinesterase activity in a subset of shorebirds. Exposure to Cholinesterase inhibitors can decrease body mass, but comparisons between treatments and hemispheres suggest that agrochemicals did not affect migratory shorebirds' body mass. Our study, one of the first to estimate of shorebirds' exposure to cholinesterase-inhibiting pesticides, suggests that shorebirds are being exposed to cholinesterase-inhibiting pesticides at specific sites in the winter range but not at migratory stopover sites. Future research should examine potential behavioral effects of exposure and identify other potential sites and levels of exposure. Instituto de Recursos Biológicos Fil: Strum, Khara M. Kansas State University. Division of Biology; Estados Unidos Fil: Hooper, Michael J. Texas Tech University. Institute of Environmental and Human Health; Estados Unidos Fil: Johnson, Kevin A. Southern Illinois University. Department of Chemistry and Environmental Sciences; Estados Unidos Fil: Lanctot, Richard B. United State Fish and Wildlife Service. Migratory Bird Management; Estados Unidos Fil: Zaccagnini, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Sandercock, Brett K. Kansas State University. Division of Biology; Estados Unidos 2019-12-11T13:02:42Z 2019-12-11T13:02:42Z 2010-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://academic.oup.com/condor/article/112/1/15/5152507 http://hdl.handle.net/20.500.12123/6483 0010-5422 1938-5129 https://doi.org/10.1525/cond.2010.090026 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Oxford Academic Press The Condor 112 (1) : 15–28, (February 2010) |
| spellingShingle | Aves Especies Migratorias Colinesterasa Plaguicidas Contaminantes Migratory Species Cholinesterase Pesticides Pollutants Aves Playeras Strum, Khara M. Hooper, Michael J. Johnson, Kevin A. Lanctot, Richard B. Zaccagnini, Maria Elena Sandercock, Brett K. Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere |
| title | Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere |
| title_full | Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere |
| title_fullStr | Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere |
| title_full_unstemmed | Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere |
| title_short | Exposure of Nonbreeding Migratory Shorebirds to Cholinesterase Inhibiting Contaminants in the Western Hemisphere |
| title_sort | exposure of nonbreeding migratory shorebirds to cholinesterase inhibiting contaminants in the western hemisphere |
| topic | Aves Especies Migratorias Colinesterasa Plaguicidas Contaminantes Migratory Species Cholinesterase Pesticides Pollutants Aves Playeras |
| url | https://academic.oup.com/condor/article/112/1/15/5152507 http://hdl.handle.net/20.500.12123/6483 https://doi.org/10.1525/cond.2010.090026 |
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