santacruz {SDAResources}

santacruz data

Description

The number of seedlings in the sampled psus on Santa Cruz Island, California, in 1992 and 1994.

Usage

data(santacruz)

Format

This data frame contains the following columns:

tree:

tree number

seed92:

number of seedlings in 1992

seed94:

number of seedlings in 1994

References

Peart, D. (1994). Impacts of Feral Pig Activity on Vegetation Patterns Associated with Quercus agrifolia on Santa Cruz Island, California. Ph.D. dissertation. Tempe, AZ: Arizona State University.

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.