Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1002/wsb.1154
Licence creative commons licence
Title (Primary) ctmmweb: A graphical user interface for autocorrelation-informed home range estimation
Author Calabrese, J.M.; Fleming, C.H.; Noonan, M.J.; Dong, X.
Journal Wildlife Society Bulletin
Year 2021
Department OESA
Volume 45
Issue 1
Page From 162
Page To 169
Language englisch
Topic T5 Future Landscapes
Keywords AKDE; animal movement; autocorrelation; ctmm; telemetry; tracking data
Abstract Estimating animal home ranges is a primary purpose of collecting tracking data. Many widely used home range estimators, including conventional kernel density estimators, assume independently‐sampled data. In stark contrast, modern animal tracking datasets are almost always strongly autocorrelated. The incongruence between estimator assumptions and empirical reality often leads to systematically underestimated home ranges. Autocorrelated kernel density estimation (AKDE) directly models the observed autocorrelation structure of tracking data during home range estimation, and has been shown to perform accurately across a broad range of tracking datasets. However, compared to conventional estimators, AKDE requires additional modeling steps and has heretofore only been accessible via the command‐line ctmm R package. Here, we introduce ctmmweb, which provides a point‐and‐click graphical interface to ctmm and streamlines AKDE, its prerequisite autocorrelation modeling steps, and a number of additional movement analyses. We demonstrate ctmmweb's capabilities, including AKDE home range estimation and subsequent home range overlap analysis, on a dataset of four jaguars from the Brazilian Pantanal tracked between 2013 and 2015. We intend ctmmweb to open AKDE and related autocorrelation‐explicit analyses to a wider audience of wildlife and conservation professionals.
Persistent UFZ Identifier
Calabrese, J.M., Fleming, C.H., Noonan, M.J., Dong, X. (2021):
ctmmweb: A graphical user interface for autocorrelation-informed home range estimation
Wildl. Soc. Bull. 45 (1), 162 - 169