bbs_meta_strata: Get physiographic strata metadata for North American Breeding...

Description Usage Arguments Value Author(s) References Examples

Description

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.

Usage

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bbs_meta_strata(bbs_dir = bbs_ftp())

Arguments

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.

Value

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

Author(s)

Bob O'Hara

Patrick Barks <patrick.barks@gmail.com>

References

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

Examples

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## 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)

patrickbarks/bbs documentation built on May 28, 2019, 12:34 a.m.