raccoondog_environment {ecoteach} | R Documentation |
Raccoon dog activity and environmental factors in China
Description
This dataset contains records of raccoon dog (Nyctereutes procyonoides) detections and other mammal species from camera traps in the Sizuolou Nature Reserve, Beijing, China, along with associated environmental variables. The data was collected from October 15, 2023, to February 29, 2024, covering both autumn and winter seasons. The study examined seasonal activity changes in raccoon dogs and their relationship to environmental and mammalian factors.
Usage
raccoondog_environment
Format
A data frame with 144 rows and 21 variables:
- point_id
Camera installation point ID
- asian_badger
Number of Asian badger detection events
- wild_boar
Number of wild boar detection events
- hog_badger
Number of hog badger detection events
- leopard_cat
Number of leopard cat detection events
- masked_palm_civet
Number of masked palm civet detection events
- rock_squirrel
Number of Père David's rock squirrel detection events
- raccoon_dog
Number of raccoon dog detection events
- red_squirrel
Number of red squirrel detection events
- roe_deer
Number of Siberian roe deer detection events
- siberian_weasel
Number of Siberian weasel detection events
- striped_squirrel
Number of Swinhoe's striped squirrel detection events
- tolai_hare
Number of Tolai hare detection events
- dist_impervious
Distance from camera to nearest impervious area (meters)
- dist_agricultural
Distance from camera to nearest agricultural land (meters)
- dist_water
Distance from camera to nearest water source (meters)
- dist_roads
Distance from camera to nearest road (meters)
- Altitude
Elevation of camera installation point (meters above sea level)
- tpi
Topographic Position Index of the camera installation point
- Day
Date of detection (days since start of study, October 15, 2023)
- Season
Season at time of detection ("Autumn" or "Winter")
- Vegetation
Type of vegetation at the camera installation point
Source
Miyamoto, Keisuke and Chen, Chuan and Luan, Xiaofeng (2025). Seasonal activity changes in raccoon dogs and influences of environmental factors from autumn to winter. Dryad Digital Repository. doi:10.5061/DRYAD.C866T1GJN
Examples
# Load the dataset
data(raccoondog_environment)
# Basic exploration
head(raccoondog_environment)
summary(raccoondog_environment)
# Compare raccoon dog detections by season
boxplot(raccoon_dog ~ Season, data = raccoondog_environment,
main = "Raccoon Dog Detections by Season",
ylab = "Number of Detections", xlab = "Season")
# Examine relationship between environmental factors and raccoon dog presence
# Create a binary presence variable
raccoondog_presence <- raccoondog_environment
raccoondog_presence$presence <- ifelse(raccoondog_presence$raccoon_dog > 0, 1, 0)
# Plot relationship with distance to agricultural land
plot(dist_agricultural ~ presence, data = raccoondog_presence,
main = "Raccoon Dog Presence vs. Distance to Agricultural Land",
xlab = "Presence (0=Absent, 1=Present)",
ylab = "Distance to Agricultural Land (m)")
# Examine vegetation types where raccoon dogs were detected
table(raccoondog_presence$Vegetation[raccoondog_presence$presence == 1])