bighornSheep: Bighorn Sheep

In syllogi: Collection of Data Sets for Teaching Purposes

Bighorn Sheep

Description

Bighorn Sheep data

Usage

data(bighornSheep)

Format

The data frame has 8000 rows (a geographic sample unit) and 15 variables:

sampleUnit

Sample unit ID, 150m circles randomly overlayed across the study area

count

Count of use by bighorn sheep.

slope

Average slope (degrees) within the sampling unit

elev

Average elevation (m) within the sampling unit

distBurn

Sampling unit center to nearest (m) burned habitat edge calculated after fire event

distRoad

Sampling unit center to nearest (m) road

distEscp

Sampling unit center to nearest (m) escape terrain (slope > 27 degrees)

distWater

Sampling unit center to nearest (m) perennial water source

aspect

Dominant cardinal direction within each sampling unit

fire

1 = after fire, 0 = before fire

season

Season, summer or winter

Details

Twelve female bighorn sheep are radio collared and tracked. Location of use of points is recorded before and after a forest fire.

References

Clapp, J.G., Beck, J.L. Short-Term Impacts of Fire-Mediated Habitat Alterations on an Isolated Bighorn Sheep Population. fire ecol 12, 80–98 (2016). https://doi.org/10.4996/fireecology.1203080

Examples

data('bighornSheep', package='syllogi')
str(bighornSheep)

syllogi documentation built on April 3, 2025, 6:13 p.m.