berberis_treatment: Berberis aquifolium Invasive Species Management Treatment...

In ecoteach: Educational Datasets for Ecology and Agriculture

Berberis aquifolium Invasive Species Management Treatment Data

Description

Experimental data from a management treatment study of invasive Berberis aquifolium (Oregon grape) plants conducted across four heavily infested dune sites in Belgium. The study evaluated the effectiveness of different management treatments on individual plants, with regrowth assessments conducted at 6 months and 1 year post-treatment.

Usage

berberis_treatment

Format

A data frame with 127 rows and 14 variables:

plant_id

Character, unique identifier for each B. aquifolium plant/clone

region

Factor, field code identifying the dune site location

date

Date, when the plant was initially located and treated (April/May 2013)

treatment

Factor, management treatment applied:

• Manual digging - Uprooting by digging with shovels

• Leaf spray (glyphosate) - 5\

• Stem cut + glyphosate - Cut and paint with 5\

• Stem cut + salt - Cut and treat with saturated NaCl solution

height

Integer, plant height in centimeters

diameter

Integer, clone diameter in centimeters

n_stems

Integer, number of stems per individual plant/clone

date_regrowth

Date, date of regrowth assessment

regrowth

Ordered factor, stem regrowth response (Dead < Limited < Vital)

x_proj

Numeric, X-coordinate of plant location (GPS projection)

y_proj

Numeric, Y-coordinate of plant location (GPS projection)

days_to_assessment

Numeric, days between treatment and assessment

treatment_success

Factor, binary outcome (Success/Failure)

volume_approx

Numeric, approximate plant volume

Source

Adriaens, T., Verschelde, P., Cartuyvels, E., D'hondt, B., Vercruysse, E., Gompel, W.V., Dewulf, E., & Provoost, S. (2019). Data from: A preliminary field trial to compare control techniques for invasive Berberis aquifolium in Belgian coastal dunes. Dryad Digital Repository. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.5061/DRYAD.ZKH189361")}

Examples

# Load the dataset
data(berberis_treatment)

# Treatment effectiveness summary
table(berberis_treatment$treatment, berberis_treatment$regrowth)

# Visualize treatment effectiveness
barplot(table(berberis_treatment$treatment, berberis_treatment$regrowth),
        beside = TRUE, legend = TRUE,
        main = "Treatment Effectiveness for Invasive Berberis")

ecoteach documentation built on June 29, 2025, 5:08 p.m.