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San Diego River Shot Hole Borer Study- Vegetation Data Collected December 2019 through February 2020

Dates

Publication Date
Start Date
2019-12-20
End Date
2020-02-02

Citation

Kus, B.E., and Mendia, S.M., 2023, San Diego River shot hole borer study (ver. 2.0, August 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P91VWCIT.

Summary

Data presented are results of vegetation sampling conducted between December 2019 and February 2020 in 24 survey plots to document the status of infestation by shot hole borers (Euwallacea sp.) on the riparian vegetation at the San Diego River. This dataset presents location, percent cover of different vegetation types, and number of seedlings for each survey plot. In addition, for each tree and sapling in each plot we present species, size, tree status (live, resprouting, recently dead from shot hole borer, or dead from another cause or unknown cause), infestation status (infested by shot hole borer, not infested by shot hole borer, or infestation not confirmed as shot hole borer), and crown condition. For every tree we also present [...]

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Main subplot data_FINAL.csv 6.41 KB text/csv
Outer and Middle subplot data_FINAL.csv 80.03 KB text/csv

Material Request Instructions

Questions pertaining to the intended use of, or assistance with understanding limitations or interpretation of these data are to be directed to the individuals/organization listed in the Point of Contact section. Unless otherwise stated, all data, metadata, and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Purpose

The goals of this study were to: 1) to assess the damage of shot hole borer infestation on vegetation at the San Diego River, 2) to provide baseline post-infestation data on habitat composition and structure at the San Diego River; 3) to determine whether trees in wet areas were more vulnerable to infestation than in dry areas; and 4) to determine whether trees in nutrient-enriched areas were more vulnerable than in unenriched areas. We used these data to assess the effects of shot hole borer infestation on population size and distribution of the endangered Least Bell’s Vireo (Vireo belli pusillus). These data were meant to inform natural resource managers about the status of the infestation and potential effects on Least Bell’s Vireo at the San Diego River and guide management practices as appropriate to reduce the effect of the infestation on this endangered species.

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  • USGS Western Ecological Research Center

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