Description Usage Format Details Source References Examples
frogs contains NAAMP data for Pseudacris feriarum (pfer) and Pseudacris crucifer (pcru) in 2001.
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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.
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