Range Map of Joshua Tree (Yucca brevifolia)

Mar 16, 2011 (Last modified May 14, 2011)
This data set represent the digital range map of Joshua Tree (Yucca brevifolia) in western North America. Data from multiple sources, including existing digitized maps, tabular data, personal communication, and figures from other publications, were synthesized to create a single digital distribution. The distribution was peer reviewed and iteratively revised based on personal observations of regional authorities.
Data Provided By:
Kenneth L. Cole, Keith Pohs, and John A. Cannella.
Content date:
Published 20 May 2003
Online linkage: http://www.usgs.nau.edu/global_change/RangeMaps.html
Contact Organization:
U.S. Geological Survey, Southwest Biological Science Center, Colorado Plateau Field Station
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Use Constraints:
These data were compiled for government use and represent the results of data collection/processing for a specific USGS activity/project. The USGS makes no representation as to the suitability or accuracy of these data for any other purpose and disclaims any liability for errors that the data may contain. As such, it is only valid for its intended use, content, time, and accuracy specifications. While there are no explicit constraints on the use of these data, please exercise appropriate and professional judgment in the use and interpretation of these data. Acknowledgement of the originating agencies would be appreciated in products derived from these data. The USGS-SBSC-Colorado Plateau Field Station shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics ("GIF" format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data.
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Conservation Biology Institute

The Conservation Biology Institute (CBI) provides scientific expertise to support the conservation and recovery of biological diversity in its natural state through applied research, education, planning, and community service.