shorebirds {SDAResources}

shorebirds data

Description

Two-phase sample of shorebird nests. These are artificial data constructed from summary statistics given in Bart and Earnst (2002).

Usage

data(shorebirds)

Format

This data frame contains the following columns:

plot:

plot number

rapid:

rapid-method count of number of birds in plot

intense:

intensive-method count of number of nests in plot

= NA if the plot is not in the phase II sample

References

Bart, J. and S. Earnst (2002). Double-sampling to estimate density and population trends in birds. The Auk 119, 36–45.

Lohr (2021), Sampling: Design and Analysis, 3rd Edition. Boca Raton, FL: CRC Press.

Lu and Lohr (2021), R Companion for Sampling: Design and Analysis, 3rd Edition, 1st Edition. Boca Raton, FL: CRC Press.