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Data Extent

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

Galls on Scotch bloom plant

[ 2023-07-10 - Superseded by version 2, https://doi.org/10.15482/USDA.ADC/1529173 ]

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 dataset
    File Name: Scotch broom gall mite.csv
    Description: Dataset is comma deliminated
Release Date
Spatial / Geographical Coverage Area
POINT (-120.5859375 38.487994609215)
Ag Data Commons
Spatial / Geographical Coverage Location
Data were collected from northern California, Sierra Nevada foothills
Temporal Coverage
May 30, 2017
Contact Name
Pratt, Paul
Contact Email
Public Access Level
Program Code
005:040 - Department of Agriculture - National Research
Bureau Code
005:18 - Agricultural Research Service