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Assateague Island Seabeach Amaranth Survey Data — 2001 to 2018

Metadata Updated: October 28, 2023

Seabeach amaranth (Amaranthus pumilus) is a federally threatened plant species that was once prevalent on beaches of the U.S. mid-Atlantic coast. For much of the 20th century, seabeach amaranth was absent and thought to be extinct along this coast presumably due to development and recreational pressure. Few plants were observed over much of the 20th century and the species was federally listed as endangered in 1993. To re-establish a population, the Natural Resources staff at Assateague Island National Seashore (ASIS) planted seabeach amaranth cultivars for three growing seasons from 2000 to 2002. To monitor the impact of this effort, the Natural Resources staff conducted yearly surveys on Assateague Island to locate seabeach amaranth from 2001 to the present. These surveys were undertaken, typically during early August, to monitor the presence and dispersal of the plant following the effort to re-establish a population. The surveys were conducted in coordination with Maryland Department of Natural Resources. Surveys measured the location of each plant found using GPS and noted several parameters including: 1) plant size, 2) evidence of grazing by insects or ungulates (2005 and later) and noted if the plant was protected by cages put in place by ASIS Natural Resources staff.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date May 31, 2023
Metadata Updated Date October 28, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2023
Metadata Updated Date October 28, 2023
Publisher U.S. Geological Survey
Identifier USGS:61c1f5fbd34eafc738ca0410
Data Last Modified 20230510
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id d3373e5c-bb79-4e01-a021-6775cf6954fa
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -75.378571,37.854778,-75.094069,38.323762
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 0e1e4b16895090b65f69056c5c46a0f6c8bb69bba9c1ef458fe254e5c1d04b6c
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -75.378571, 37.854778, -75.378571, 38.323762, -75.094069, 38.323762, -75.094069, 37.854778, -75.378571, 37.854778}

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