Skip to main content

Table 1 Review of the differences of the existing methods together with rationale for the current contribution

From: A hidden Markov model for reconstructing animal paths from solar geolocation loggers using templates for light intensity

 

Customary approacha

Ekstrom (2007)

Nielsen & Siebert (2007)

Sumner et al. 2009

Current contribution

R package

GeoLight

 

Trackit

TripEstimation

FLightRb

Few points per twilight

+

  

+−

+

Shading cloud cover free

 

+

 

+

+

Optimisation

 

least squares

UKF

MCMC (block update)

particle filter

Movement allowed

  

+

+

+

Landscape mask

   

+

+

Migratory-sedentary switch

    

+

Behavioural-landscape masks

    

+

Positions

+ − (not close the equinox)

+

+

+

+

Assesment of precision of estimates

  

+

+

+

Distribution of possible positions

   

+

+

Distribution of possible transitions

    

+

  1. afor the details on customary threshold methods one should refer to Hill [44]; Hill & Braun [6]; Ekstrom [7]); bFLightR package (availiable at https://github.com/eldarrak/FLightR) is at the late development stage