Title:

Data and script files for "Expanding the invasion footprint: Ventenata dubia and relationships to wildfire, environment, and plant communities in the Blue Mountains of the Inland Northwest, USA"

Author(s):

Tortorelli, Claire M.; Krawchuk, Meg A.; Kerns, Becky K.

Publication Year:

2020

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Tortorelli, Claire M.; Krawchuk, Meg A.; Kerns, Becky K. 2020. Data and script files for "Expanding the invasion footprint: Ventenata dubia and relationships to wildfire, environment, and plant communities in the Blue Mountains of the Inland Northwest, USA". OSF. https://doi.org/10.17605/osf.io/4qc3x

Abstract:

The Ventenata dubia relationships to plant communities and environmental factors are data used in support of the project and manuscript "Expanding the invasion footprint: Ventenata dubia and relationships to wildfire, environment, and plant communities in the Blue Mountains of the Inland Northwest, USA". Ventenata dubia (ventenata) is a relatively recent invasive annual grass to the Blue Mountain Ecoregion. The Blue Mountains Ecoregion is part of the Environmental Protection Agency (EPA) Level III Ecoregion classification (https://www.epa.gov/eco-research/ecoregions). These data were used to identify abiotic and biotic habitat characteristics associated with ventenata and to better understand the relationship between fire and ventenata have upon the surrounding plant community composition and structure. These data were gathered from 110 recently burned and nearby unburned plots that were stratified to determined ventenata cover, the elevation, biophysical classes, and fire severity. Overall, these data were able to identify that venteata was the most abundant in sparsely vegetated basalt derived rocky scablands and is expanding its overall invasion footprint. The most heavily invaded plant communities were uninvaded by other non-native annual grasses. Ventenata cover and community diversity were shown to be stronger in burned plats where sagebrush species were largely absent after fire. This indicates that burning may exacerbate negative relationships between ventenata and species richness, evenness, and functional diversity.

Keywords:

biota; Ecology, Ecosystems, & Environment; Geography; Ecology; Plant ecology; Ventenata dubia; invasive; annual grass; cover; fire; habitat; community; structure; diversity; Joint Fire Science Program; JFSP; Blue Mountains ecoregion; Oregon; Washington; Idaho; Ochoco National Forest; Malheur National Forest; Wallowa-Whitman National Forest; Payette National Forest

Related publications:

• Tortorelli, Claire M.; Krawchuk, Meg A.; Kerns, Becky K. 2020. Expanding the invasion footprint: Ventenata dubia and relationships to wildfire, environment, and plant communities in the Blue Mountains of the Inland Northwest, USA. Applied Vegetation Science. 23(4): 562-574. https://doi.org/10.1111/avsc.12511

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