# Fur Seal Analysis

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== Preliminary draft of manuscript == | == Preliminary draft of manuscript == | ||

− | The following: {{pdf|Gurarie2008_MovementAnalysis.pdf|Gurarie2008 MovementAnalysis}} Is a preliminary draft of a paper on the analysis methods for generating a behaviorally "distilled" model of animal movement. | + | The following: {{pdf|Gurarie2008_MovementAnalysis.pdf|Gurarie2008 MovementAnalysis}} Is a preliminary draft of a paper on the analysis methods for generating a behaviorally "distilled" model of animal movement. It is missing any discussion of the application of the method to the fur seal movements. |

==Plots of all fur seals== | ==Plots of all fur seals== |

## Revision as of 11:01, 3 April 2008

## Preliminary draft of manuscript

The following: Gurarie2008 MovementAnalysis Is a preliminary draft of a paper on the analysis methods for generating a behaviorally "distilled" model of animal movement. It is missing any discussion of the application of the method to the fur seal movements.

## Plots of all fur seals

This file: FurSealAllPlots.pdf contains plots of five Northern fur seal tracks and analysis according to the Gurarie-2008 method.

The data are from fur seal number NFS07-03, and include trips 1, 2, 3, 4 and 7, which were long enough for a complete analysis.

The plots on the left show the time-series of velocity and turning angles decomposed into persistence (*V*_{p} = *V*cos(θ)) and turning (*V*_{t} = *V*sin(θ)) components. The decompositions were performed using a window size *L* of 30 and 50 data points.

The black line is the estimate for the mean , the red line represents the estimate for the standard deviaion , and the color reflects the auto-correlation : bluer colors indicate less auto-correlated movement, while yellow colors indicate more auto-correlated movement. Vertical orange lines indicate points where the estimation routine suggests there was a significant behavioral shift. Thicker lines correspond to a higher number of selected shifts. Grey bands indicate nighttime.

To the right, I present a mapping of the track itself. Colors again indicate the auto-correlation estimate for the persistence component (*V*_{p}), while the size of the dots indicates the estimated velocity at each point.

There is (in my view) lots of things to think about here!

Eli 14:44, 2 April 2008 (PDT)