larkspur: Sample of transects of pale white larkspur.

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

Sample of transects of pale white larkspur.

Description

Sample of 20 one-meter belt transects to estimate the abundance of pale white larkspur in a given region. The total number of sampling units in the sampling frame is 150 belt transects with a total area of 5897 square meters.

Usage

larkspur

Format

A data frame with 20 observations and two variables:

plants

abundance in a sampled transect

area

sampled transect area in square meters

Note

Although not stated explicitly in the source, the sample was presumably obtained using simple random sampling.

Source

Stehman, S. V., & Salzer, D. W. 2000. Estimating density from surveys employing unequal-area belt transects. Wetlands, 20, 512-519.

Gregoire, T. G., & Valentine, H. T. (2007). Sampling strategies for natural resources and the environment. Boca Raton, FL: Chapman & Hall/CRC.

trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.