Filters: Tags: suitable habitat (X)5 results (116ms)
This dataset depicts suitable habitat for northern spotted owls on the Umpqua National Forest in Oregon. Suitable habitat is considered nesting, foraging, and roosting habitat. This dataset was originally created in 1995 to reflect harvest and stand conditions on owl habitat at that time. Thist dataset was later updated in 2002 for the Diamond Lake District, and again updated habitat suitability in the Spring Fire burned area.
This dataset represents areas in Oregon (USA) with potential high suitability for northern spotted owls. This dataset is not intended to accurately characterize high-quality northern spotted owl habitat, but instead serves as a means of distilling the more complex information depicted in the northern spotted owl habitat suitability layers published by the Northwest Forest Plan (NFP) - Interagency Regional Monitoring Program (Lint 2005) used to create this dataset. The Conservation Biology Institute (CBI) developed this layer through a series of post-processing steps. Areas of high suitability (90-100%) were identified in the NFP habitat suitability layer. These areas were then filtered and smoothed using a 125 meter...
Modelling effects of discharge on habitat quality and dispersal of juvenile humpback chub (Gila cypha) in the Colorado River, Grand Canyon
A two-dimensional hydrodynamic model was applied to seven study reaches in the Colorado River within Grand Canyon to examine how operation of Glen Canyon Dam has affected availability of suitable shoreline habitat and dispersal of juvenile humpback chub (Gila cypha). Suitable shoreline habitat typically declined with increasing discharges above 226?425m3/ s, although the response varied among modelled reaches and was strongly dependent on local morphology. The area of suitable shoreline habitat over cover types that are preferred by juvenile humpback chub, however, stayed constant, and in some reaches, actually increased with discharge. In general, changes in discharge caused by impoundment tended to decrease availability...
Parent Project: Range-Wide Climate Vulnerability Assessment for Threatened Bull Trout Publication Abstract: Forecasts of species distributions under future climates are inherently uncertain, but there have been few attempts to describe this uncertainty comprehensively in a probabilistic manner. We developed a Monte Carlo approach that accounts for uncertainty within generalized linear regression models (parameter uncertainty and residual error), uncertainty among competing models (model uncertainty), and uncertainty in future climate conditions (climate uncertainty) to produce site-specific frequency distributions of occurrence probabilities across a species’ range. We illustrated the method by forecasting suitable...
GAP modeled summer, winter and year round distribution of Bald Eagle. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these data.