You are here

Keyword: Strix occidentalis

Food habits of Mexican Spotted Owls in Arizona

Publications Posted on: August 01, 2018
The Spotted Owl (Strix occidentalis) is most common in mature and old-growth coniferous forests throughout much of its range (Forsman et al. 1984, Laymon 1988, Ganey and Balda 1989a, Thomas et al. 1990). Proximate factors underlying habitat selection in Spotted Owls are understood poorly.

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.

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.

Modeling trade-offs between fire threat reduction and late-seral forest structure.

Publications Posted on: July 18, 2007
Evaluating the effects of managing for one forest resource in terms of associated impacts on other resources is not easy. Yet methods to identify potential trade-offs among forest resources are necessary to inform people about the implications of management options on public land.