Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size
Animal tracking through Argos satellite telemetry has enormous potential to test hypotheses in animal behavior, evolutionary ecology, or conservation biology. Yet the applicability of this technique cannot be fully assessed because no clear picture exists as to the conditions influencing the accurac...
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fttriple:oai:gotriple.eu:50|dedup_wf_001::b27857f68700e55277623156a1e0cc36 2023-05-15T15:01:57+02:00 Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size Christin, Sylvain St-Laurent, Martin-Hugues Berteaux, Dominique 2016-10-19 https://doi.org/10.5061/dryad.bt72k undefined unknown Dryad https://dx.doi.org/10.5061/dryad.bt72k http://dx.doi.org/10.5061/dryad.bt72k lic_creative-commons 10.5061/dryad.bt72k oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:89845 oai:easy.dans.knaw.nl:easy-dataset:89845 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c error quantification polar environments Argos satellite telemetry home range GPS Arctic Life sciences medicine and health care envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2016 fttriple https://doi.org/10.5061/dryad.bt72k 2023-01-22T17:23:52Z Animal tracking through Argos satellite telemetry has enormous potential to test hypotheses in animal behavior, evolutionary ecology, or conservation biology. Yet the applicability of this technique cannot be fully assessed because no clear picture exists as to the conditions influencing the accuracy of Argos locations. Latitude, type of environment, and transmitter movement are among the main candidate factors affecting accuracy. A posteriori data filtering can remove “bad” locations, but again testing is still needed to refine filters. First, we evaluate experimentally the accuracy of Argos locations in a polar terrestrial environment (Nunavut, Canada), with both static and mobile transmitters transported by humans and coupled to GPS transmitters. We report static errors among the lowest published. However, the 68th error percentiles of mobile transmitters were 1.7 to 3.8 times greater than those of static transmitters. Second, we test how different filtering methods influence the quality of Argos location datasets. Accuracy of location datasets was best improved when filtering in locations of the best classes (LC3 and 2), while the Douglas Argos filter and a homemade speed filter yielded similar performance while retaining more locations. All filters effectively reduced the 68th error percentiles. Finally, we assess how location error impacted, at six spatial scales, two common estimators of home-range size (a proxy of animal space use behavior synthetizing movements), the minimum convex polygon and the fixed kernel estimator. Location error led to a sometimes dramatic overestimation of home-range size, especially at very local scales. We conclude that Argos telemetry is appropriate to study medium-size terrestrial animals in polar environments, but recommend that location errors are always measured and evaluated against research hypotheses, and that data are always filtered before analysis. How movement speed of transmitters affects location error needs additional research. Raw data_Christin et al_PLoS ... Dataset Arctic Nunavut Unknown Arctic Nunavut Canada |
institution |
Open Polar |
collection |
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language |
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topic |
error quantification polar environments Argos satellite telemetry home range GPS Arctic Life sciences medicine and health care envir geo |
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error quantification polar environments Argos satellite telemetry home range GPS Arctic Life sciences medicine and health care envir geo Christin, Sylvain St-Laurent, Martin-Hugues Berteaux, Dominique Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size |
topic_facet |
error quantification polar environments Argos satellite telemetry home range GPS Arctic Life sciences medicine and health care envir geo |
description |
Animal tracking through Argos satellite telemetry has enormous potential to test hypotheses in animal behavior, evolutionary ecology, or conservation biology. Yet the applicability of this technique cannot be fully assessed because no clear picture exists as to the conditions influencing the accuracy of Argos locations. Latitude, type of environment, and transmitter movement are among the main candidate factors affecting accuracy. A posteriori data filtering can remove “bad” locations, but again testing is still needed to refine filters. First, we evaluate experimentally the accuracy of Argos locations in a polar terrestrial environment (Nunavut, Canada), with both static and mobile transmitters transported by humans and coupled to GPS transmitters. We report static errors among the lowest published. However, the 68th error percentiles of mobile transmitters were 1.7 to 3.8 times greater than those of static transmitters. Second, we test how different filtering methods influence the quality of Argos location datasets. Accuracy of location datasets was best improved when filtering in locations of the best classes (LC3 and 2), while the Douglas Argos filter and a homemade speed filter yielded similar performance while retaining more locations. All filters effectively reduced the 68th error percentiles. Finally, we assess how location error impacted, at six spatial scales, two common estimators of home-range size (a proxy of animal space use behavior synthetizing movements), the minimum convex polygon and the fixed kernel estimator. Location error led to a sometimes dramatic overestimation of home-range size, especially at very local scales. We conclude that Argos telemetry is appropriate to study medium-size terrestrial animals in polar environments, but recommend that location errors are always measured and evaluated against research hypotheses, and that data are always filtered before analysis. How movement speed of transmitters affects location error needs additional research. Raw data_Christin et al_PLoS ... |
format |
Dataset |
author |
Christin, Sylvain St-Laurent, Martin-Hugues Berteaux, Dominique |
author_facet |
Christin, Sylvain St-Laurent, Martin-Hugues Berteaux, Dominique |
author_sort |
Christin, Sylvain |
title |
Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size |
title_short |
Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size |
title_full |
Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size |
title_fullStr |
Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size |
title_full_unstemmed |
Data from: Evaluation of Argos telemetry accuracy in the High-Arctic and implications for the estimation of home-range size |
title_sort |
data from: evaluation of argos telemetry accuracy in the high-arctic and implications for the estimation of home-range size |
publisher |
Dryad |
publishDate |
2016 |
url |
https://doi.org/10.5061/dryad.bt72k |
geographic |
Arctic Nunavut Canada |
geographic_facet |
Arctic Nunavut Canada |
genre |
Arctic Nunavut |
genre_facet |
Arctic Nunavut |
op_source |
10.5061/dryad.bt72k oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:89845 oai:easy.dans.knaw.nl:easy-dataset:89845 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.bt72k http://dx.doi.org/10.5061/dryad.bt72k |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.bt72k |
_version_ |
1766333955217293312 |