bison: National Bison Range Vegetation, Montana, USA

In phytomosaic/ecole: ecole: School of Ecology Package

Description

Data from University of Montana Biological Station, Plant Ecology class, 1983, Bruce McCune.

Usage

bison

Format

A list of 2 data.frames:
- spe Species abundance matrix: 19 observations of 50 vascular plant species. Values are cover classes, 0-3.
- env Environmental matrix: 19 observations of 5 environmental variables. Descriptions below.

Details

Documentation follows PC-ORD (McCune and Mefford 2017). Coding for variables in the second matrix:

smoist = percent soil moisture.
slope = slope, in degrees.
aspect = aspect code, on 1 to 5 scale, as one of eight compass points centered on SW (SW = 1, S and W = 2, SE and NW = 3, N and E = 4, NE = 5).
elev = elevation above sea level, in meters. Correspond to five stopping points for sampling.
topo = topographic position class, adapted from scales used by Whittaker and Kessell (Kessell 1979).

Source

The unpublished data are from Bruce McCune as communicated in PC-ORD (McCune and Mefford 2017). Data are from University of Montana Biological Station, Plant Ecology class, 1983.

References

McCune, B., and M. J. Mefford. 2017. PC-ORD. Multivariate Analysis of Ecological Data. Version 7. MjM Software Design, Gleneden Beach, OR.

Examples

# split into two data.frames
data(bison)
spe <- bison$spe
env <- bison$env

phytomosaic/ecole documentation built on Jan. 2, 2022, 11:24 p.m.