Description Usage Arguments Value Author(s) References Examples
Get a data frame with the names, codes, and areas of physiographic strata in the North American Breeding Bird Survey (BBS). Names and codes come from the BBS file BBSStrata.txt, and stratum areas are from https://www.pwrc.usgs.gov/bbs/stratanames/index.html.
Note that stratum areas are stored within the rBBS package, so any potential changes to the USGS webpage noted above may not be immediately available from this function.
1 | bbs_meta_strata(bbs_dir = bbs_ftp())
|
bbs_dir |
Directory from which to get data. Defaults to the USGS FTP directory for the most recent BBS release. May alternatively be a path to a local directory, or ftp address for an older BBS release. |
A data.frame
with the following columns:
stratum |
integer code for physiographic stratum |
stratum_name |
name of stratum in English |
stratum_name_french |
name of stratum in French |
stratum_name_spanish |
name of stratum in Spanish |
stratum_area |
stratum area in square kilometers |
Bob O'Hara
Patrick Barks <patrick.barks@gmail.com>
Pardieck, K.L., D.J. Ziolkowski Jr., M. Lutmerding and M.-A.R. Hudson. 2018. North American Breeding Bird Survey Dataset 1966-2017, version 2017.0. U.S. Geological Survey, Patuxent Wildlife Research Center. https://doi.org/10.5066/F76972V8
1 2 3 4 5 6 7 8 9 | ## Not run:
# get from USGS ftp server
strata <- bbs_meta_strata()
# get from local working directory
strata <- bbs_meta_strata(bbs_dir = ".")
## End(Not run)
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