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Keyword: Spotted Owl

Managing emerging threats to spotted owls

Publications Posted on: May 10, 2018
The 3 spotted owl (Strix occidentalis) subspecies in North America (i.e., northern spotted owl [S. o. caurina], California spotted owl [S. o. occidentalis], Mexican spotted owl [S. o. lucida]) have all experienced population declines over the past century due to habitat loss and fragmentation from logging.

Conflicting perspectives on spotted owls, wildfire, and forest restoration

Publications Posted on: February 12, 2018
Evidence of increasing fire extent and severity in the western US in recent decades has raised concern over the effects of fire on threatened species such as the spotted owl (Strix occidentalis Xantus de Vesey), which nests in forests with large trees and high canopy cover that are vulnerable to high-severity wildfire. A dichotomy of views exists on the impact of high-severity wildfire on the spotted owl.

How do wildfires and forest restoration efforts affect spotted owls?

Science Spotlights Posted on: February 06, 2018
High-severity wildfires are increasing and researchers are issuing different findings regarding wildfire impacts on spotted owls (Strix occidentalis), a threatened species that nests in mature, western forests with large trees and high canopy cover. Data from different studies show mixed responses of spotted owls to fire, but suggest that the effects of high-severity wildfires could be significant throughout the range of all three subspecies. The debate over owls, wildfire, and managed forest restoration needs further evaluation.

Multi-scale Mexican spotted owl (Strix occidentalis lucida) nest/roost habitat selection in Arizona and a comparison with single-scale modeling results

Publications Posted on: June 24, 2016
Efficacy of future habitat selection studies will benefit by taking a multi-scale approach. In addition to potentially providing increased explanatory power and predictive capacity, multi-scale habitat models enhance our understanding of the scales at which species respond to their environment, which is critical knowledge required to implement effective conservation and management strategies.

Spotted Owl: Strix occidentalis

Publications Posted on: May 12, 2016
The scientific name, Strix occidentalis, translates as "owl of the west," an appropriate name for this inhabitant of western forests. The subspecies found in Arizona, the Mexican Spotted Owl, is S. o. lucida - "light" or "bright" owl of the west. This race is generally lighter in color than Spotted Owls elsewhere in the range.

Dynamics of coarse woody debris in southwestern mixed-conifer and ponderosa pine forests

Media Gallery Posted on: July 22, 2015
Images of coarse woody debris in southwestern mixed conifer and ponderosa pine forests.