Rare Plant Occurrences Geodatabase for the Northern Channel Islands

Publication Date

2021-11-16

Creation

1886-01-01

McEachern, A.K., Niessen, K.G., Rudolph, R.P., and Lee, L.F.S., 2021, Rare plant occurrences geodatabase for the northern Channel Islands: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZRSZ1N.

The authors of these data require that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

The Rare Plant Sightings geodatabase serves as a repository of singular observations of occurrences of rare and sensitive plants in the Channel Islands. It includes information on location, numbers and conditions of plants, associated species and environmental characteristics, as well as metadata on original data sources and accuracy of the spatial data. The purposes of the database are to organize information about the rare plants of the northern Channel Islands into a searchable database and to allow adding repeat observations so that changes in occurrence status can be tracked through time. Because the records come from disparate sources collected over many decades they represent an information archive rather than accurate estimates of population abundance. The primary use for location data is as a reference point for the location of a plant population, not to define the boundaries of a population.

• USGS Data Release Products
• USGS Western Ecological Research Center

Data source

Input directly