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Data and analytical code associated with a modified Lotka-Volterra model, assessing population-level co-occurrence effects between barred (Strix varia) and northern spotted owls (Strix occidentalis caurina), in western Oregon (1990 – 2015)

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 09:17 PM | Dataset Last Updated: August 05, 2025 at 12:00 AM
This data release provides data from the 2016 Lesmeister et al. technical report and Mathematica and Python analytical code to model co-occurrence effects between barred (Strix varia) and northern spotted (Strix occidentalis caurina) owls. This data release, containing sample data set and code, is designed to facilitate reproducibility of analyses associated with the manuscript titled "Modeling competition co-occurrence effects between the invasive barred owl and imperiled northern spotted owl", published in Ecological Applications in 2025.

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