Dr. Christen H. Fleming (curriculum vitae)

Contact Information

Continuous-Time Movement Modeling

  1. J. M. Calabrese, C. H. Fleming, E. Gurarie, "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)
  2. J. M. Calabrese, C. H. Fleming, M. J. Noonan, X. Dong, "ctmmweb: A graphical user interface for autocorrelation-informed home range estimation", Wildlife Society Bulletin, doi:10.1002/wsb.1154 (2021)
  3. M. J. Noonan, M. A. Tucker, C. H. Fleming, et al, "A comprehensive analysis of autocorrelation and bias in home range estimation", Ecological Monographs, 89:2, e01344 (2019)
  4. M. J. Noonan, C. H. Fleming, et al, "Bodysize-dependent underestimation of mammalian area requirements", Conservation Biology, 34:4 1017-1028 (2020)
  5. 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)
  6. 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, 571-579 (2016)
  7. 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)
  8. 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)
  9. 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)
  10. M. J. Noonan, C. H. Fleming, T. S. Akre, J. Dresher-Lehman, E. Gurarie, A.-L. Harrison, R. Kays, J. M. Calabrese, "Scale-insensitive estimation of speed and distance traveled from animal tracking data", Movement Ecology, 7:35 (2019)
  11. 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)
  12. C. H. Fleming, D. Sheldon, E. Gurarie, W. F. Fagan. S. LaPoint, J. M. Calabrese, "Kalman filters for continuous-time movement models", Ecological Informatics 40, 8-21 (2017)
  13. 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)
  14. 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)
  15. 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 10.1186/s40462-016-0084-7 (2016)
  16. G. Péron, C. H. Fleming, R. C. de Paula, N. Mitchell, M. Stronbach, 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)
  17. C. H. Fleming, Y. Subasi, J. M. Calabrese, "A maximum-entropy description of animal movement", Physical Review E 91, 032107 (2015)

ctmm R package

This CRAN package has most everything you need to estimate animal home ranges: including variogram movement-model visualization, peturbative-REML based movement-model estimation, autocorrelated kernel-density home-range estimation, optimal kernel weighting, location-error model selection, and home-range area meta-analysis. Additional analyses are continuously being rolled in.