Riparian vegetation species richness in the Elwha River estuary, Washington, in 2007 and 2014

This portion of the data release presents riparian plant species richness (number of unique taxa) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we established 21 vegetation plots within the study area in a stratified random fashion, with three to five plots in five of the vegetation cover types denoted in the habitat classification maps: mixed riparian forest, willow-alder forest, riparian shrub, emergent marsh/marsh-shrub transition, and dunegrass. Each plot was 100 square meters, usually 10 m x 10 m, but in areas where the vegetation patch was narrow, plots were either 4 m x 25 m or 5 m x 20 m. We visually estimated percent cover by species of all vascular plants within one of ten cover classes and tallied the number of unique taxa to estimate total species richness in each plot. We resampled all plots in August 2014. Plant species richness data are provided in a comma-delimited spreadsheet (.csv).

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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catalog_@id https://ddi.doi.gov/usgs-data.json
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identifier http://datainventory.doi.gov/id/dataset/usgs-592726f6e4b0b7ff9fb5dc9d
metadata_type geospatial
modified 2021-10-13T00:00:00Z
old-spatial -123.56071, 48.147, -123.56009, 48.1477
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 6e7fb0378cabd88b9139b8c2ebbec23f153bd72e37e064629057fde2a3be4b3a
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-123.56071, 48.147], [-123.56071, 48.1477], [ -123.56009, 48.1477], [ -123.56009, 48.147], [-123.56071, 48.147]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • clallam-county
  • dam-removal
  • elwha-river
  • environment
  • estuary
  • geoscientificinformation
  • geospatial-datasets
  • olympic-peninsula
  • port-angeles
  • river
  • species-richness
  • state-of-washington
  • strait-of-juan-de-fuca
  • united-states-of-america
  • usgs-592726f6e4b0b7ff9fb5dc9d
  • vegetation
  • wetland-ecosystems
isopen False
license_id notspecified
license_title License not specified
maintainer Patrick B Shafroth
maintainer_email shafrothp@usgs.gov
metadata_created 2025-09-24T21:16:00.881162
metadata_modified 2025-09-24T21:16:00.881174
notes This portion of the data release presents riparian plant species richness (number of unique taxa) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we established 21 vegetation plots within the study area in a stratified random fashion, with three to five plots in five of the vegetation cover types denoted in the habitat classification maps: mixed riparian forest, willow-alder forest, riparian shrub, emergent marsh/marsh-shrub transition, and dunegrass. Each plot was 100 square meters, usually 10 m x 10 m, but in areas where the vegetation patch was narrow, plots were either 4 m x 25 m or 5 m x 20 m. We visually estimated percent cover by species of all vascular plants within one of ten cover classes and tallied the number of unique taxa to estimate total species richness in each plot. We resampled all plots in August 2014. Plant species richness data are provided in a comma-delimited spreadsheet (.csv).
num_resources 2
num_tags 25
title Riparian vegetation species richness in the Elwha River estuary, Washington, in 2007 and 2014