Increasing neonicotinoid use and the declining butterfly fauna of lowland California
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Abstract
The butterfly fauna of lowland Northern California has exhibited a marked decline in recent years that previous studies have attributed in part to altered climatic conditions and changes in land use. Here, we ask if a shift in insecticide use towards neonicotinoids is associated with butterfly declines at four sites in the region that have been monitored for four decades. A negative association between butterfly populations and increasing neonicotinoid application is detectable while controlling for land use and other factors, and appears to be more severe for smaller-bodied species. These results suggest that neonicotinoids could influence non-target insect populations occurring in proximity to application locations, and highlights the need for mechanistic work to complement long-term observational data.
Suggested Citation
Forister, M.L., Cousens, B., Harrison, J.G., Anderson, K., Thorne, J.H., Waetjen, D., Nice, C.C., De Parsia, M., Hladik, M., Meese, R., van Vliet, H., Shapiro, A.M., 2016, Increasing neonicotinoid use and the declining butterfly fauna of lowland California: Biology Letters, v. 12, 20160475: 5 p., https://doi.org/10.1098/rsbl.2016.0475.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Increasing neonicotinoid use and the declining butterfly fauna of lowland California |
| Series title | Biology Letters |
| DOI | 10.1098/rsbl.2016.0475 |
| Volume | 12 |
| Year Published | 2016 |
| Language | English |
| Publisher | Royal Society |
| Contributing office(s) | California Water Science Center |
| Description | 20160475: 5 p. |
| Country | United States |
| State | California |
| County | Sacramento County, Solano County, Yolo County |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |