frogs | R Documentation |
frogs contains NAAMP data for Pseudacris feriarum (pfer) and Pseudacris crucifer (pcru) in 2001.
data(frogs)
matrix of observed calling indices for pcru
matrix of detections for pcru
array of covariates measured at the observation-level for pcru
matrix of observed calling indices for pfer
matrix of detections for pfer
array of covariates measured at the observation-level for pfer
The rows of pcru.y, pcru.bin, pfer.y, and pfer.bin correspond to sites
and columns correspond to visits to each site. The first 2 dimensions
of pfer.data and pcru.data are matrices of covariates that correspond to
the observation matrices (sites \times
observation), with the 3rd
dimension corresponding to separate covariates.
https://www.pwrc.usgs.gov/naamp/
Mossman MJ, Weir LA. North American Amphibian Monitoring Program (NAAMP). Amphibian Declines: the conservation status of United States species. University of California Press, Berkeley, California, USA. 2005:307-313.
data(frogs)
str(pcru.data)
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