frogs: 2001 Delaware North American Amphibian Monitoring Program Data
Description
frogs contains NAAMP data for Pseudacris feriarum (pfer) and Pseudacris
crucifer (pcru) in 2001.
Usage
data(frogs)
Arguments
source
https://www.pwrc.usgs.gov/naamp/
Details
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.
References
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.