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Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data

J. A. Thomson, Luca Borger Orcid Logo, M. J. A. Christianen, N. Esteban, J.-O. Laloë, G. C. Hays, Nicole Esteban Orcid Logo

Marine Biology, Volume: 164, Issue: 10

Swansea University Authors: Luca Borger Orcid Logo, Nicole Esteban Orcid Logo

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DOI (Published version): 10.1007/s00227-017-3225-7

Abstract

The advent of Fastloc-GPS is helping to transform marine animal tracking by allowing the collection of high-quality location data for species that surface only briefly. We show how the improved location accuracy of Fastloc-GPS compared to Argos tracking is expected to lead to far more accurate home...

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Published in: Marine Biology
ISSN: 0025-3162 1432-1793
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa35936
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spelling 2021-07-16T14:44:22.7897598 v2 35936 2017-10-05 Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false fb2e760b83b4580e7445092982f1f319 0000-0003-4693-7221 Nicole Esteban Nicole Esteban true false 2017-10-05 SBI The advent of Fastloc-GPS is helping to transform marine animal tracking by allowing the collection of high-quality location data for species that surface only briefly. We show how the improved location accuracy of Fastloc-GPS compared to Argos tracking is expected to lead to far more accurate home range estimates, particularly for animals moving over the scale of a few km. We reach this conclusion using simulated data and home range estimates derived from empirical tracking data for green sea turtles (Chelonia mydas) equipped with Argos linked Fastloc-GPS tags at three different foraging areas (western Indian Ocean, Western Australia, and Caribbean). Poor-quality Argos locations (e.g., location classes A, B) produced home range estimates ranging from 10 to 100 times larger than those derived from Fastloc-GPS data, whereas high-quality Argos locations (location classes 1–3) produced home range estimates that were generally comparable to those derived from Fastloc-GPS data. However, the limited number of Argos class 1–3 locations obtained for all three turtles—an average of 14.6 times more Fastloc-GPS locations were obtained compared to Argos class 1–3 locations—resulted in blurred patterns of space use. In contrast, the high volume of Fastloc-GPS locations revealed fine-scale movements in striking detail (i.e., use of discrete patches separated by just a few 100 m). We recommend careful consideration of the effects of location accuracy and data volume when developing sampling regimes for marine tracking studies and make recommendations regarding how sampling can be standardized to facilitate meaningful spatial and temporal comparisons of space use. Journal Article Marine Biology 164 10 0025-3162 1432-1793 home range; GPS; Fastloc-GPS; ARGOS; Movement ecology; tracking; sea turtle; 1 10 2017 2017-10-01 10.1007/s00227-017-3225-7 https://link.springer.com/article/10.1007/s00227-017-3225-7 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2021-07-16T14:44:22.7897598 2017-10-05T11:58:13.2946607 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences J. A. Thomson 1 Luca Borger 0000-0001-8763-5997 2 M. J. A. Christianen 3 N. Esteban 4 J.-O. Laloë 5 G. C. Hays 6 Nicole Esteban 0000-0003-4693-7221 7 0035936-13022018164455.pdf 35936.pdf 2018-02-13T16:44:55.9270000 Output 435571 application/pdf Accepted Manuscript true 2018-09-11T00:00:00.0000000 true eng
title Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
spellingShingle Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
Luca Borger
Nicole Esteban
title_short Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
title_full Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
title_fullStr Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
title_full_unstemmed Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
title_sort Implications of location accuracy and data volume for home range estimation and fine-scale movement analysis: comparing Argos and Fastloc-GPS tracking data
author_id_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2
fb2e760b83b4580e7445092982f1f319
author_id_fullname_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
fb2e760b83b4580e7445092982f1f319_***_Nicole Esteban
author Luca Borger
Nicole Esteban
author2 J. A. Thomson
Luca Borger
M. J. A. Christianen
N. Esteban
J.-O. Laloë
G. C. Hays
Nicole Esteban
format Journal article
container_title Marine Biology
container_volume 164
container_issue 10
publishDate 2017
institution Swansea University
issn 0025-3162
1432-1793
doi_str_mv 10.1007/s00227-017-3225-7
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url https://link.springer.com/article/10.1007/s00227-017-3225-7
document_store_str 1
active_str 0
description The advent of Fastloc-GPS is helping to transform marine animal tracking by allowing the collection of high-quality location data for species that surface only briefly. We show how the improved location accuracy of Fastloc-GPS compared to Argos tracking is expected to lead to far more accurate home range estimates, particularly for animals moving over the scale of a few km. We reach this conclusion using simulated data and home range estimates derived from empirical tracking data for green sea turtles (Chelonia mydas) equipped with Argos linked Fastloc-GPS tags at three different foraging areas (western Indian Ocean, Western Australia, and Caribbean). Poor-quality Argos locations (e.g., location classes A, B) produced home range estimates ranging from 10 to 100 times larger than those derived from Fastloc-GPS data, whereas high-quality Argos locations (location classes 1–3) produced home range estimates that were generally comparable to those derived from Fastloc-GPS data. However, the limited number of Argos class 1–3 locations obtained for all three turtles—an average of 14.6 times more Fastloc-GPS locations were obtained compared to Argos class 1–3 locations—resulted in blurred patterns of space use. In contrast, the high volume of Fastloc-GPS locations revealed fine-scale movements in striking detail (i.e., use of discrete patches separated by just a few 100 m). We recommend careful consideration of the effects of location accuracy and data volume when developing sampling regimes for marine tracking studies and make recommendations regarding how sampling can be standardized to facilitate meaningful spatial and temporal comparisons of space use.
published_date 2017-10-01T03:44:52Z
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