Diets of northern spotted owls and barred owls in western Oregon, 2007 &2009.Entry ID: USGS_FRESC_OwlDiets
Abstract: ABSTRACT: Owl diet data are contained in a Microsoft Excel spreadsheet that provides the collection identification number, site (i.e., name of owl territory) where data were collected, date of collection, type of prey species identified in the collection, and attributes of each prey species (e.g., mean mass, activity type, primary life zone). The data set includes 1 row per prey item with columns for the collection number, site name, collection date, collection season, prey species, mean mass of prey, prey type, prey activity zone, initials of the technician that keyed the prey item, and comments.
Purpose: PURPOSE: This dataset was developed to examine dietary composition, dietary breadth, and dietary overlap of sympatric northern spotted owls and barred owls in the central Oregon Coast Ranges study area during 2007â€2009.
SUPPLEMENTAL INFORMATION: There are two FRESC Study IDs associated with this data set: 547 and 608
CURRENTNESS REFERENCE: ground condition
NATIVE: Microsoft Excel spreadsheet (.xls)
Data Set Citation
Dataset Originator/Creator: J.David Wiens and Scott A. Graham
Dataset Title: Diets of northern spotted owls and barred owls in western Oregon, 2007 & 2009.
Dataset Release Date: Unknown
Data Presentation Form: Maps and Data
Start Date: 2007-04-30Stop Date: 2009-08-31
ISO Topic Category
Quality ATTRIBUTE ACCURACY REPORT: No tests for attribute accuracy were conducted. Most prey items were matched to known specimens in the lab.
LOGICAL CONSISTENCY REPORT: Data were subject to a formal error-checking process to insure that all data were correctly entered and prepared for analysis. Checked outlier values for accuracy
COMPLETENESS REPORT: This data set does not contain records from sites where <20 prey items were collected during the study (sites with <20 prey items were not included in analyses).
Access Constraints ACCESS CONSTRAINTS: Data are available after research results have been published in a scientific journal.
DISTRIBUTION LIABILITY: Not available.
CUSTOM ORDER PROCESS: Available upon request from the author
Use Constraints Acknowledgement of both Originators (J.D. Wiens and S.A. Graham) when using the data set as a source.
Data Set Progress
Role: DIF AUTHOR
Email: fresc_outreach at usgs.gov
777 NW 9th Street, Suite 400
Province or State: Oregon
Postal Code: 97330
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2012-06-28
Last DIF Revision Date: 2016-11-18