moveHMM - Animal Movement Modelling using Hidden Markov Models

Provides tools for animal movement modelling using hidden Markov models. These include processing of tracking data, fitting hidden Markov models to movement data, visualization of data and fitted model, decoding of the state process, etc. <doi:10.1111/2041-210X.12578>.

Last updated 7 months ago

36 stars 8.58 score 56 dependencies

aniMotum - Fit Continuous-Time State-Space and Latent Variable Models for Quality Control of Argos Satellite (and Other) Telemetry Data and for Estimating Changes in Animal Movement

Fits continuous-time random walk, correlated random walk and move persistence state-space models for location estimation and behavioural inference from animal tracking data ('Argos', processed light-level 'geolocation', 'GPS'). Template Model Builder ('TMB') is used for fast random-effects estimation. The 'Argos' data can be: (older) least squares-based locations; (newer) Kalman filter-based locations with error ellipse information; or a mixture of both. The models estimate two sets of location states corresponding to: 1) each observation, which are (usually) irregularly timed; and 2) user-specified time intervals (regular or irregular). A track re-routing function is provided to adjust location estimates for known movement barriers. Track simulation functions are provided. Latent variable models are also provided to estimate move persistence from track data not requiring state-space model filtering.

Last updated 3 months ago

animal-movementanimal-trackingrandom-effects-modelstate-space-modelstmb

38 stars 7.12 score 90 dependencies

glatos - A package for the Great Lakes Acoustic Telemetry Observation System

Functions useful to members of the Great Lakes Acoustic Telemetry Observation System https://glatos.glos.us; many more broadly relevant to simulating, processing, analysing, and visualizing acoustic telemetry data.

Last updated 24 days ago

9 stars 6.68 score 51 dependencies

nichetools - Complementary Package to 'nicheROVER' and 'SIBER'

Provides functions complementary to packages 'nicheROVER' and 'SIBER' allowing the user to extract Bayesian estimates from data objects created by the packages 'nicheROVER' and 'SIBER'. Please see the following publications for detailed methods on 'nicheROVER' and 'SIBER' Hansen et al. (2015) <doi:10.1890/14-0235.1>, Jackson et al. (2011) <doi:10.1111/j.1365-2656.2011.01806.x>, and Layman et al. (2007) <doi:10.1890/0012-9658(2007)88[42:CSIRPF]2.0.CO;2>, respectfully.

Last updated 4 days ago

2 stars 6.11 score 60 dependencies

tRophicPosition - Bayesian Trophic Position Estimation with Stable Isotopes

Estimates the trophic position of a consumer relative to a baseline species. It implements a Bayesian approach which combines an interface to the 'JAGS' MCMC library of 'rjags' and stable isotopes. Users are encouraged to test the package and send bugs and/or errors to [email protected].

Last updated 5 days ago

5.53 score 51 dependencies

mort - Identifying Potential Mortalities and Expelled Tags in Aquatic Acoustic Telemetry Arrays

A toolkit for identifying potential mortalities and expelled tags in aquatic acoustic telemetry arrays. Designed for arrays with non-overlapping receivers.

Last updated 1 months ago

acoustic-telemetryaquaticmortality-estimation

3 stars 5.53 score 5 dependencies

pathroutr - An R Package for (Re-)Routing Paths Around Barriers

The `pathroutr` package aims to provide a set of tools for routing marine animal tracks around land barriers based on the shortest path through a visibility graph network. The foundation of the package is a graph network created from a Delaunay Triangle mesh created from the vertices of land polygons within the study area. Any network edges that cross or fall completely within the land (barrier) polygons are removed.

Last updated 1 years ago

15 stars 4.83 score 45 dependencies 1 dependents

matos - Interface with the Mid-Atlantic Acoustic Telemetry Observing System (MATOS)

This package provides HTML-scaping functions to interact with the MATOS website (https://matos.asascience.com/), allowing aggregation of data and the downloading and posting of files.

Last updated 5 months ago

animal-trackingapiapi-wrapperbiotelemetryfishfisheriesfisheries-research

3 stars 4.73 score 114 dependencies

ecotox - Analysis of Ecotoxicology

A simple approach to using a probit or logit analysis to calculate lethal concentration (LC) or time (LT) and the appropriate fiducial confidence limits desired for selected LC or LT for ecotoxicology studies (Finney 1971; Wheeler et al. 2006; Robertson et al. 2007). The simplicity of 'ecotox' comes from the syntax it implies within its functions which are similar to functions like glm() and lm(). In addition to the simplicity of the syntax, a comprehensive data frame is produced which gives the user a predicted LC or LT value for the desired level and a suite of important parameters such as fiducial confidence limits and slope. Finney, D.J. (1971, ISBN: 052108041X); Wheeler, M.W., Park, R.M., and Bailer, A.J. (2006) <doi:10.1897/05-320R.1>; Robertson, J.L., Savin, N.E., Russell, R.M., and Preisler, H.K. (2007, ISBN: 0849323312).

Last updated 1 months ago

biologydose-response-modelinglogitprobittoxicology

3 stars 4.50 score 11 dependencies

soapcheckr - Check knot locations used by soap film smoothers for GAMS

Soapcheckr allows users to easily check if the boundary used and supplied will work when using a soap-film smoother for Generalized Addtive Models (GAMs) supported by the package {mgcv}. The package also allows for users to assess if the knots and data points they want to supply the GAM will fit within the boundary.

Last updated 11 months ago

9 stars 3.95 score 32 dependencies

yaps - Track Estimation using YAPS (Yet Another Positioning Solver)

Estimate tracks of animals tagged with acoustic transmitters. 'yaps' was introduced in 2017 as a transparent open-source tool to estimate positions of fish (and other aquatic animals) tagged with acoustic transmitters. Based on registrations of acoustic transmitters on hydrophones positioned in a fixed array, 'yaps' enables users to synchronize the collected data (i.e. correcting for drift in the internal clocks of the hydrophones/receivers) and subsequently to estimate tracks of the tagged animals. The paper introducing 'yaps' is available in open access at Baktoft, Gjelland, Økland & Thygesen (2017) <doi:10.1038/s41598-017-14278-z>. Also check out our cookbook with a completely worked through example at Baktoft, Gjelland, Økland, Rehage, Rodemann, Corujo, Viadero & Thygesen (2019) <DOI:10.1101/2019.12.16.877688>. Additional tutorials will eventually make their way onto the project website at <https://baktoft.github.io/yaps/>.

Last updated 12 months ago

2.81 score 46 dependencies

miscYAPS - Miscellaneous data and helper functions for using YAPS

Provides a bit of data and helper functions for wrapping around the key YAPS functions. The main function is swim_yaps, which will allow you to pass a data.table that is formatted with columns ts, epo, frac, tag, serial to the function. You must have a synchronisation model already available that is named sync_model and a data.table object for the hydrophones and their locations named hydros, as per the YAPS specifications. You should be familiar with YAPS in order to use this package but it will hopefully help make your life easier by looping through YAPS runs N (user specified number) of times and taking the best fit among those runs for each fish day. You will also find some data in the package to help you try.

Last updated 9 months ago

2 stars 2.08 score 57 dependencies