Functions for identifying, fitting, and applying continuous-space, continuous-time stochastic movement models to animal tracking data. The package is described in Calabrese & Fleming (2016) <doi:10.1111/2041-210X.12559> and its models and methods are based on those introduced in Fleming & Calabrese et al (2014) <doi:10.1086/675504>, Fleming et al (2014) <doi:10.1111/2041-210X.12176>, Fleming et al (2015) <doi:10.1103/PhysRevE.91.032107>, Fleming et al (2015) <doi:10.1890/14-2010.1>, Fleming et al (2016) <doi:10.1890/15-1607>, Péron & Fleming et al (2016) <doi:10.1186/s40462-016-0084-7>, Fleming & Calabrese (2017) <doi:10.1111/2041-210X.12673>, Péron et al (2017) <doi:10.1002/ecm.1260>, Fleming et al (2017) <doi:10.1016/j.ecoinf.2017.04.008>, Fleming et al (2018) <doi:10.1002/eap.1704>, Winner & Noonan et al (2018) <doi:10.1111/2041-210X.13027>, Fleming et al (2019) <doi:10.1111/2041-210X.13270>, Noonan & Fleming et al (2019) <doi:10.1186/s40462-019-0177-1>, Fleming et al (2020) <doi:10.1101/2020.06.12.130195>, and Noonan et al (2020) <doi:10.1101/2020.08.24.261628>.

Details

Package:ctmm
Type:Package
Version:0.6.1
Date:2021-07-26
License:GPL-3

Author

Christen H. Fleming and Justin M. Calabrese

Maintainer: Christen H. Fleming <flemingc@si.edu>

References

C. H. Fleming, J. M. Calabrese, T. Mueller, K. A. Olson, P. Leimgruber, W. F. Fagan, ``From fine-scale foraging to home ranges: A semi-variance approach to identifying movement modes across spatiotemporal scales'', The American Naturalist, 183:5, E154-E167 (2014) doi: 10.1086/675504 .

C. H. Fleming, J. M. Calabrese, T. Mueller, K. A. Olson, P. Leimgruber, W. F. Fagan, ``Non-Markovian maximum likelihood estimation of autocorrelated movement processes'', Methods in Ecology and Evolution, 5:5 462-472 (2014) doi: 10.1111/2041-210X.12176 .

C. H. Fleming, Y. Subaşı, J. M. Calabrese, ``A maximum-entropy description of animal movement'', Physical Review E, 91, 032107 (2015) doi: 10.1103/PhysRevE.91.032107 .

C. H. Fleming, W. F. Fagan, T. Mueller, K. A. Olson, P. Leimgruber, J. M. Calabrese, ``Rigorous home-range estimation with movement data: A new autocorrelated kernel-density estimator'', Ecology, 96:5, 1182-1188 (2015) doi: 10.1890/14-2010.1 .

J. M. Calabrese, C. H. Fleming, ``ctmm: an R package for analyzing animal relocation data as a continuous-time stochastic process'', Methods in Ecology and Evolution, 7:9, 1124-1132 (2016) doi: 10.1111/2041-210X.12559 .

C. H. Fleming, W. F. Fagan, T. Mueller, K. A. Olson, P. Leimgruber, J. M. Calabrese, ``Estimating where and how animals travel: An optimal framework for path reconstruction from autocorrelated tracking data'', Ecology, 97:3, 576-582 (2016) doi: 10.1890/15-1607.1 .

G. Péron, C. H. Fleming, R. C. de Paula, J. M. Calabrese, ``Uncovering periodic patterns of space use in animal tracking data with periodograms, including a new algorithm for the Lomb-Scargle periodogram and improved randomization tests'', Movement Ecology, 4:19 (2016) doi: 10.1186/s40462-016-0084-7 .

C. H. Fleming, J. M. Calabrese, ``A new kernel-density estimator for accurate home-range and species-range area estimation'', Methods in Ecology and Evolution, 8:5, 571-579 (2017) doi: 10.1111/2041-210X.12673 .

G. Péron, C. H. Fleming, R. C. de Paula, N. Mitchell, M. Strohbach, P. Leimgruber, J. M. Calabrese, ``Periodic continuous-time movement models uncover behavioral changes of wild canids along anthropization gradients'', Ecological Monographs 87:3, 442-456 (2017) doi: 10.1002/ecm.1260

C. H. Fleming, D. Sheldon, E. Gurarie, W. F. Fagan, S. LaPoint, J. M. Calabrese, ``Kálmán filters for continuous-time movement models'', Ecological Informatics, 40, 8-21 (2017) doi: 10.1016/j.ecoinf.2017.04.008 .

C. H. Fleming, D. Sheldon, W. F. Fagan, P. Leimgruber, T. Mueller, D. Nandintsetseg, M. J. Noonan, K. A. Olson, E. Setyawan, A. Sianipar, J. M. Calabrese, ``Correcting for missing and irregular data in home-range estimation'', Ecological Applications, 28:4, 1003-1010 (2018) doi: 10.1002/eap.1704 .

K. Winner, M. J. Noonan, C. H. Fleming, K. Olson, T. Mueller, D. Sheldon, J. M. Calabrese. ``Statistical inference for home range overlap'', Methods in Ecology and Evolution, 9:7, 1679-1691 (2018) doi: 10.1111/2041-210X.13027 .

C. H. Fleming, M. J. Noonan, E. P. Medici, J. M. Calabrese, ``Overcoming the challenge of small effective sample sizes in home-range estimation'', Methods in Ecology and Evolution 10:10, 1679-1689 (2019) doi: 10.1111/2041-210X.13270 .

M. J. Noonan, C. H. Fleming, T. S. Akre, J. Drescher-Lehman, E. Gurarie, A.-L. Harrison, R. Kays, Justin Calabrese, ``Scale-insensitive estimation of speed and distance traveled from animal tracking data'', Movement Ecology, 7:35 (2019) doi: 10.1186/s40462-019-0177-1 .