badger_energy {ecoteach} | R Documentation |
European badger energy expenditure and tuberculosis infection data
Description
This dataset contains measurements of daily energy expenditure (DEE) and related variables for European badgers (Meles meles) in relation to their tuberculosis (TB) infection status. The data were collected to examine how disease status and other factors like season, group size, sex, age, and body mass affect energy balance in wild badgers. Some individuals were measured multiple times across different seasons.
Usage
badger_energy
Format
A data frame with 56 rows and 7 variables:
- ID
Unique identifier for each badger
- age
Age class of the badger: "cub" or "adult"
- sex
Sex of the badger: "F" (female) or "M" (male)
- group_size
Number of badgers in the social group
- body_mass
Body mass in kilograms (kg)
- daily_energy
Daily energy expenditure (DEE) in kilojoules per day (kJ/day)
- season
Season when measurements were taken: "Winter", "Spring", "Summer", or "Autumn"
- disease
Tuberculosis infection status: "Negative", "Diseased", or "Exposed"
Source
Barbour, Katie and McClune, David W. and Delahay, Richard J. and Speakman, John R. and McGowan, Natasha E. and Kostka, Berit and Montgomery, Ian W. and Marks, Nikki J. and Scantlebury, David M. (2019). Data from: No energetic cost of tuberculosis infection in European badgers (Meles meles). Dryad Digital Repository. doi:10.5061/DRYAD.MN84H20
Examples
# Load the dataset
data(badger_energy)
# Basic exploration
head(badger_energy)
summary(badger_energy)
# Compare energy expenditure by disease status
boxplot(daily_energy ~ disease, data = badger_energy,
main = "Daily Energy Expenditure by TB Status",
ylab = "DEE (kJ/day)", xlab = "TB Status")
# Examine relationship between body mass and energy expenditure
plot(daily_energy ~ body_mass, data = badger_energy,
col = as.numeric(disease), pch = 16,
main = "Energy Expenditure vs Body Mass",
xlab = "Body Mass (kg)", ylab = "DEE (kJ/day)")
legend("topright", levels(badger_energy$disease),
col = 1:3, pch = 16)