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Argos

DCRW and DCRWS state-space models

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This code supports state-space modelling of animal movement data using two models: DCRW (first-difference correlated random walk) and DCRWS (first-difference correlated random walk with switching). These models accomodate complex error structure in tracking data and allow fitting of behavioral models.

Additional resources:

Compatibility with Movebank: 

The package does not interact directly with Movebank. 

Maintained by: 

unknown

How to Obtain: 

The scripts and sample data can be downloaded from http://www.esapubs.org/archive/ecol/E086/156/suppl-1.htm

Douglas Argos-Filter

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The Douglas Argos-filter (DAF) algorithm flags implausible locations based on user-defined thresholds that allow the algorithm’s performance to be tuned to species’ movement behaviours and study objectives. Users can choose from three filtering methods:

Compatibility with Movebank: 

This algorithm is implemented within Movebank and can be applied to Argos data in Movebank in the Event Editor.

Maintained by: 

David Douglas

How to Obtain: 

Instructions for running the filter in Movebank are at www.movebank.org/node/38. The SAS executable can be downloaded at http://alaska.usgs.gov/science/biology/spatial/douglas.html.

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