Abstract
Playa wetlands are critical habitat for wildlife in the Southern High Plains (SHP), a region dominated by agriculture. Little information on pesticide levels exists for playas, and thus we measured organochlorine pesticide concentrations in sediment and amphibians collected from playas in cropland and grassland watersheds. Heptachlor, α- and β-BHC, γ-chlordane, and dieldrin were detected in sediment and/or tissue samples, typically at or below 1 ng/g, dry weight. However, mean DDT and DDE reached 19.7 and 4.1 ng/g in sediments and 6.3 and 2.4 ng/g in tissues, respectively. Land use did not influence pesticide levels in sediment or amphibians.
Original language | English |
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Pages (from-to) | 497-501 |
Number of pages | 5 |
Journal | Bulletin of Environmental Contamination and Toxicology |
Volume | 80 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2008 |
Keywords
- Bufo cognatus
- Great plains toad
- Spadefoot toad
- Spea spp.