Effects of rotenone on nesting Ospreys (Pandion haliaetus) at Hyatt and Howard Prairie Reservoirs, OR, 1988-1992

To assess the effects of rotenone (fish toxicant) treatment and possible fish removal effects on nesting Osprey (Pandion haliaetus) populations, nests were observed at two reservoirs east of Ashland, Oregon. Hyatt Reservoir was treated with rotenone on October 12, 1989. Howard Prairie was observed as an untreated reference area. Nests at both reservoirs were observed two years pre-treatment (1988, 1989) and two years post-treatment (1990, 1992). The dataset contains Osprey reproductive parameters, foraging parameters, prey delivery rates and bald eagle piracy rates at eight intensively observed nests. Fish stocking records and creel data were obtained from the Oregon Department of Fish & Wildlife for both reservoirs for the study period.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220722134805
identifier USGS:6088536fd34e5611588f9086
metadata_type geospatial
modified 20210923
old-spatial {"type": "Polygon", "coordinates": [[[-122.6884, 42.0498], [-122.6884, 42.3190], [ -122.2662, 42.3190], [ -122.2662, 42.0498], [-122.6884, 42.0498]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 9c73eb8d789cc8a8ed6ef65e8cb3190ed81a0c41
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-122.6884, 42.0498], [-122.6884, 42.3190], [ -122.2662, 42.3190], [ -122.2662, 42.0498], [-122.6884, 42.0498]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • ameiurus-nebulosus
  • amerigeo
  • amerigeoss
  • bald-eagle
  • biota
  • birds
  • brood-reduction
  • brown-bullhead
  • ckan
  • fish
  • geo
  • geoss
  • haliaeetus-leucocephalus
  • howard-prairie-reservoir
  • hyatt-reservoir
  • jackson
  • largemouth-bass
  • micropterus-salmoides
  • national
  • nesting-population
  • north-america
  • oncorhynchus-mykiss
  • oregon
  • osprey
  • pandion-haliaetus
  • prey-delivery-rates
  • prey-loss
  • rainbow-trout
  • reproduction
  • rotenone
  • spring-steelhead
  • united-states
  • usgs-6088536fd34e5611588f9086
  • wildlife-biology
  • winter-steelhead
isopen False
license_id notspecified
license_title License not specified
maintainer FRESC Science Data Coordinator
maintainer_email fresc_outreach@usgs.gov
metadata_created 2025-11-22T11:38:49.143046
metadata_modified 2025-11-22T11:38:49.143050
notes To assess the effects of rotenone (fish toxicant) treatment and possible fish removal effects on nesting Osprey (Pandion haliaetus) populations, nests were observed at two reservoirs east of Ashland, Oregon. Hyatt Reservoir was treated with rotenone on October 12, 1989. Howard Prairie was observed as an untreated reference area. Nests at both reservoirs were observed two years pre-treatment (1988, 1989) and two years post-treatment (1990, 1992). The dataset contains Osprey reproductive parameters, foraging parameters, prey delivery rates and bald eagle piracy rates at eight intensively observed nests. Fish stocking records and creel data were obtained from the Oregon Department of Fish & Wildlife for both reservoirs for the study period.
num_resources 2
num_tags 35
title Effects of rotenone on nesting Ospreys (Pandion haliaetus) at Hyatt and Howard Prairie Reservoirs, OR, 1988-1992