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Northern spotted owl data and analysis code, Cascade Range, Pacific Northwest, USA

Data for journal manuscript: The past and future roles of competition and habitat in the range-wide occupancy dynamics of Northern Spotted Owls


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Yackulic, C.B., 2019, Northern spotted owl data and analysis code, Cascade Range, Pacific Northwest, USA: U.S. Geological Survey data release,


These data were compiled to allow examination of northern spotted owl territorial occupancy dynamics, especially with regards to the roles played by habitat and competition with barred owl in past and future dynamics. Data are estimates of parameters derived from previous modelling of northern spotted owl territorial occupancy dynamics. These data were collected as part of monitoring of northern spotted owl demography. Associated code allows analysis of these estimates to understand the roles of competition and habitat in recent northern spotted owl declines and to predict the future of northern spotted owl under various management scenarios.


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The purpose of these data is to describe territorial occupancy dynamics for barred and northern spotted owls and allow further analysis of the implications of these data. These data describe how territorial occupancy dynamic parameters (colonization and extinction) vary in response to competition and habitat variation.


The authors of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. 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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.

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DOI doi:10.5066/P9O0IIRH

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