Home range overlap indices implemented using kernel density estimators with plug-in smoothing parameters and Program R

Title

Home range overlap indices implemented using kernel density estimators with plug-in smoothing parameters and Program R

Published Date

2014-04-18

Group

Author Contact

Fieberg, John R
jfieberg@umn.edu

Type

Dataset
Software Code
Observational Data

Abstract

This collection contains R code to implement the home range overlap indices evaluated by Fieberg and Kochanny (2005). These indices have been incorporated into the adehabitat package of Program R. However, the adehabitat package does not currently (as of April 2014) allow calculation of home ranges using the 'plug-in' method for choosing smoothing parameters when estimating home ranges using kernel density estimates. In addition, the code here allows one to use two separate smoothing parameters rather than a single parameter (as in the current version of adehabitat). An illustrative example is included that makes use wild boar location data contained in the adehabitat package. For references, see README.txt.

Description

These files contain computer code that was reviewed in Fieberg & Kochanny (2005). There are five files in this data set: (1) Indices.txt is a text file containing R functions for calculating the overlap indices in Fieberg & Kochanny (2005); (2) CalcHR.txt is a text file containing functions that calculate HR area, as well as outer contours for different home range isopleths; (3) ExampleData.csv is a CSV containing the data in R's adehabitat package; (4) Example1.txt is a text file containing an R script illustrating index calculations using the adehabitat package data; and (5) Example1.pdf is a PDF snapshot of the output produced by running Example1.txt in an R environment.

Referenced by

Fieberg, J. and C. O. Kochanny (2005). Quantification of home range overlap: the importance of the utilization distribution. Journal of Wildlife Management 69:1346-1359.
http://dx.doi.org/10.2193/0022-541X%282005%2969%5B1346:QHOTIO%5D2.0.CO;2

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Previously Published Citation

Fieberg, J. 2014. Home range overlap indices implemented using kernel density estimators with plug-in smoothing parameters and Program R. University of Minnesota Digital Conservancy. Retrieved from http://hdl.handle.net/11299/163012.

Other identifiers

Suggested citation

Fieberg, John R. (2014). Home range overlap indices implemented using kernel density estimators with plug-in smoothing parameters and Program R. Retrieved from the Data Repository for the University of Minnesota (DRUM), http://dx.doi.org/10.13020/D6G59W.
View/Download file
File View/OpenDescriptionSize
Indices.txtR functions to calculate overlap indices1.79 KB
CalcHR.txtR function to calculate HR area and outer contours for different home range isopleths1.33 KB
ExampleData.csvCSV of example data3.79 KB
Example1.txtR script to illustrate indices using ExampleData.csv3.65 KB
Example1.pdfOutput produced by running Example1.txt123.98 KB
README.txt2.97 KB

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