Invertebrate Community Metrics from Imidacloprid Mesocosms

To investigate the effects of imidacloprid on natural stream communities under controlled conditions, experimental streams were dosed with imidacloprid at concentrations ranging from 0.061 to 220 micrograms per liter (µg/L) for a period of 10 days. Natural stream macroinvertebrate communities were obtained from the Cache La Poudre River (Larimer County, CO) by colonizing trays full of large gravel for 75 days. The trays were added to laboratory experimental streams (mesocosms) at the USGS Fort Collins Science Center in Fort Collins, CO. At the end of 10 days, invertebrate abundance metrics were analyzed in relation to measured imidacloprid concentrations in water from the experimental streams. Declines in total abundance and Ephemeroptera, Plecoptera and Tricoptera taxa abundance were observed in the mesocosm communities at concentrations of 1 µg/L and above, and one sensitive species, Baetis tricaudatus, was affected at concentrations as low as 0.060 µg/L.

Data e Risorse

Campo Valore
accessLevel public
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identifier USGS:5941e2cee4b0764e6c64a73e
metadata_type geospatial
modified 20200826
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash a5dc5c6a2ec536d2730ebeb46a5dae790d2e82d8
source_schema_version 1.1
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • aquatic-insect-communities
  • ckan
  • colorado
  • fort-collins
  • geo
  • geoss
  • imidacloprid
  • national
  • neonicotinoid
  • north-america
  • pesticides
  • toxicity
  • united-states
  • usgs-5941e2cee4b0764e6c64a73e
  • water-quality
isopen False
license_id notspecified
license_title License not specified
maintainer Travis S. Schmidt
maintainer_email tschmidt@usgs.gov
metadata_created 2025-11-21T09:43:25.229836
metadata_modified 2025-11-21T09:43:25.229840
notes To investigate the effects of imidacloprid on natural stream communities under controlled conditions, experimental streams were dosed with imidacloprid at concentrations ranging from 0.061 to 220 micrograms per liter (µg/L) for a period of 10 days. Natural stream macroinvertebrate communities were obtained from the Cache La Poudre River (Larimer County, CO) by colonizing trays full of large gravel for 75 days. The trays were added to laboratory experimental streams (mesocosms) at the USGS Fort Collins Science Center in Fort Collins, CO. At the end of 10 days, invertebrate abundance metrics were analyzed in relation to measured imidacloprid concentrations in water from the experimental streams. Declines in total abundance and Ephemeroptera, Plecoptera and Tricoptera taxa abundance were observed in the mesocosm communities at concentrations of 1 µg/L and above, and one sensitive species, Baetis tricaudatus, was affected at concentrations as low as 0.060 µg/L.
num_resources 2
num_tags 17
title Invertebrate Community Metrics from Imidacloprid Mesocosms