Ag Data Commons
Scotch broom gall mite_1.csv (22.45 kB)

Data from: Galls formed by Aceria genistae (Acari: Eriophyidae) alter resource allocation of the invasive weed Scotch broom (Cytisus scoparius) v2

Download (22.45 kB)
Version 2 2023-11-30, 15:33
Version 1 2023-11-30, 12:06
posted on 2023-11-30, 15:33 authored by Paul PrattPaul Pratt

[ 2023-07-10 - Supersedes version 1, ]

The Scotch broom gall mite, Aceria genistae, attacks Cytisus scoparius (Scotch broom), an invasive shrub in California, USA. Feeding causes galls (localized tissue distortion) but the effect of A. genistae on overall host vigor and reproduction has not been assessed. We collected data on plant parts between two plants partitioned between two groups, heavily or lightly galled plants, at three northern California sites. Plant parts were measured in the field (plant height, plant width) and others were recorded after harvesting plants (stem, leaf, gall, seed pod, seeds, etc.) and drying them in an oven to a constant weight. Data were natural log transformed. Columns represent (in order): observation number (obs), plant identifier (plantID), Site, treatment (heavy or light galling), Diameter at soil (lnDAS), height, leaf weight (lnLeaf), stem weight (lnStem), fruit weight (lnFruit), gall weight (lnGalls), number of pods (lnpods), seed weight (lnseeds), number of seeds per plant (lnseedsplant), canopy volume (lnVol), canopy diameter at its widest point (lnWidest), canopy area (lnCanopyArea), total biomass of all plant fractions combined (lnTotal), number of stem branches (lnResource).

Resources in this dataset:

  • Resource Title: Scotch broom biomass dataset File Name: Scotch broom gall mite.csv Description: Dataset is comma deliminated


Agricultural Research Service


Data contact name

Pratt, Paul

Data contact email


Ag Data Commons

Intended use

Assess the herbivory of Aceria genistae in relation to its host growth and reproduction.

Use limitations

Limited time and geographic distribution so inferences are restricted in time and space.

Temporal Extent Start Date



  • Not specified

Geographic Coverage


Geographic location - description

Data were collected from northern California, Sierra Nevada foothills

ISO Topic Category

  • environment

National Agricultural Library Thesaurus terms

galls; Aceria; invasive species; Cytisus scoparius; mites; leaf mass; fruit weight; seed weight; biomass; allometry; weeds

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 304

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Pratt, Paul D. (2023). Data from: Galls formed by Aceria genistae (Acari: Eriophyidae) alter resource allocation of the invasive weed Scotch broom (Cytisus scoparius) v2. Ag Data Commons.

Usage metrics


    Ref. manager