Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus)
Background: Satellite telemetry studies provide information that is critical to the conservation and management of species affected by ecological change. Here we report on the performance and retention of two types (SPOT-227 and SPOT-305A) of ear-mounted Argos-linked satellite transmitters (i.e., pl...
Published in: | Animal Biotelemetry |
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Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2017
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Online Access: | https://pure.au.dk/portal/da/publications/performance-and-retention-of-lightweight-satellite-radio-tags-applied-to-the-ears-of-polar-bears-ursus-maritimus(f1006b30-737f-4430-9bae-8386d4a39c7b).html https://doi.org/10.1186/s40317-017-0124-0 https://pure.au.dk/ws/files/120389507/s40317_017_0124_0.pdf http://www.scopus.com/inward/record.url?scp=85018489707&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/f1006b30-737f-4430-9bae-8386d4a39c7b 2023-12-31T10:04:54+01:00 Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) Wiig, Øystein Born, Erik W. Laidre, Kristin L. Dietz, Rune Jensen, Mikkel Villum Durner, George M. Pagano, Anthony M. Regehr, Eric St. Martin, Michelle Atkinson, Stephen Dyck, Markus 2017-04-13 application/pdf https://pure.au.dk/portal/da/publications/performance-and-retention-of-lightweight-satellite-radio-tags-applied-to-the-ears-of-polar-bears-ursus-maritimus(f1006b30-737f-4430-9bae-8386d4a39c7b).html https://doi.org/10.1186/s40317-017-0124-0 https://pure.au.dk/ws/files/120389507/s40317_017_0124_0.pdf http://www.scopus.com/inward/record.url?scp=85018489707&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/da/publications/performance-and-retention-of-lightweight-satellite-radio-tags-applied-to-the-ears-of-polar-bears-ursus-maritimus(f1006b30-737f-4430-9bae-8386d4a39c7b).html info:eu-repo/semantics/openAccess Wiig , Ø , Born , E W , Laidre , K L , Dietz , R , Jensen , M V , Durner , G M , Pagano , A M , Regehr , E , St. Martin , M , Atkinson , S & Dyck , M 2017 , ' Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) ' , Animal Biotelemetry , vol. 5 , 9 . https://doi.org/10.1186/s40317-017-0124-0 Ear satellite transmitters Performance Platform transmitter terminal Polar bear PTT Retention Ursus maritimus article 2017 ftuniaarhuspubl https://doi.org/10.1186/s40317-017-0124-0 2023-12-07T00:02:28Z Background: Satellite telemetry studies provide information that is critical to the conservation and management of species affected by ecological change. Here we report on the performance and retention of two types (SPOT-227 and SPOT-305A) of ear-mounted Argos-linked satellite transmitters (i.e., platform transmitter terminal, or PTT) deployed on free-ranging polar bears in Eastern Greenland, Baffin Bay, Kane Basin, the southern Beaufort Sea, and the Chukchi Sea during 2007-2013. Results: Transmissions from 142 out of 145 PTTs deployed on polar bears were received for an average of 69.3 days. The average functional longevity, defined as the number of days they transmitted while still attached to polar bears, for SPOT-227 was 56.8 days and for SPOT-305A was 48.6 days. Thirty-four of the 142 (24%) PTTs showed signs of being detached before they stopped transmitting, indicating that tag loss was an important aspect of tag failure. Furthermore, 10 of 26 (38%) bears that were re-observed following application of a PTT had a split ear pinna, suggesting that some transmitters were detached by force. All six PTTs that were still on bears upon recapture had lost the antenna, which indicates that antenna breakage was a significant contributor to PTT failure. Finally, only nine of the 142 (6%) PTTs-three of which were still attached to bears-had a final voltage reading close to the value indicating battery exhaustion. This suggests that battery exhaustion was not a major factor in tag performance. Conclusions: The average functional longevity of approximately 2 months for ear-mounted PTTs (this study) is poor compared to PTT collars fitted to adult female polar bears, which can last for several years. Early failure of the ear-mounted PTTs appeared to be caused primarily by detachment from the ear or antenna breakage. We suggest that much smaller and lighter ear-mounted transmitters are necessary to reduce the risk of tissue irritation, tissue damage, and tag detachment, and with a more robust antenna design. Our results ... Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Beaufort Sea Chukchi Chukchi Sea Greenland Kane Basin Ursus maritimus Aarhus University: Research Animal Biotelemetry 5 1 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Ear satellite transmitters Performance Platform transmitter terminal Polar bear PTT Retention Ursus maritimus |
spellingShingle |
Ear satellite transmitters Performance Platform transmitter terminal Polar bear PTT Retention Ursus maritimus Wiig, Øystein Born, Erik W. Laidre, Kristin L. Dietz, Rune Jensen, Mikkel Villum Durner, George M. Pagano, Anthony M. Regehr, Eric St. Martin, Michelle Atkinson, Stephen Dyck, Markus Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) |
topic_facet |
Ear satellite transmitters Performance Platform transmitter terminal Polar bear PTT Retention Ursus maritimus |
description |
Background: Satellite telemetry studies provide information that is critical to the conservation and management of species affected by ecological change. Here we report on the performance and retention of two types (SPOT-227 and SPOT-305A) of ear-mounted Argos-linked satellite transmitters (i.e., platform transmitter terminal, or PTT) deployed on free-ranging polar bears in Eastern Greenland, Baffin Bay, Kane Basin, the southern Beaufort Sea, and the Chukchi Sea during 2007-2013. Results: Transmissions from 142 out of 145 PTTs deployed on polar bears were received for an average of 69.3 days. The average functional longevity, defined as the number of days they transmitted while still attached to polar bears, for SPOT-227 was 56.8 days and for SPOT-305A was 48.6 days. Thirty-four of the 142 (24%) PTTs showed signs of being detached before they stopped transmitting, indicating that tag loss was an important aspect of tag failure. Furthermore, 10 of 26 (38%) bears that were re-observed following application of a PTT had a split ear pinna, suggesting that some transmitters were detached by force. All six PTTs that were still on bears upon recapture had lost the antenna, which indicates that antenna breakage was a significant contributor to PTT failure. Finally, only nine of the 142 (6%) PTTs-three of which were still attached to bears-had a final voltage reading close to the value indicating battery exhaustion. This suggests that battery exhaustion was not a major factor in tag performance. Conclusions: The average functional longevity of approximately 2 months for ear-mounted PTTs (this study) is poor compared to PTT collars fitted to adult female polar bears, which can last for several years. Early failure of the ear-mounted PTTs appeared to be caused primarily by detachment from the ear or antenna breakage. We suggest that much smaller and lighter ear-mounted transmitters are necessary to reduce the risk of tissue irritation, tissue damage, and tag detachment, and with a more robust antenna design. Our results ... |
format |
Article in Journal/Newspaper |
author |
Wiig, Øystein Born, Erik W. Laidre, Kristin L. Dietz, Rune Jensen, Mikkel Villum Durner, George M. Pagano, Anthony M. Regehr, Eric St. Martin, Michelle Atkinson, Stephen Dyck, Markus |
author_facet |
Wiig, Øystein Born, Erik W. Laidre, Kristin L. Dietz, Rune Jensen, Mikkel Villum Durner, George M. Pagano, Anthony M. Regehr, Eric St. Martin, Michelle Atkinson, Stephen Dyck, Markus |
author_sort |
Wiig, Øystein |
title |
Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) |
title_short |
Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) |
title_full |
Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) |
title_fullStr |
Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) |
title_full_unstemmed |
Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) |
title_sort |
performance and retention of lightweight satellite radio tags applied to the ears of polar bears (ursus maritimus) |
publishDate |
2017 |
url |
https://pure.au.dk/portal/da/publications/performance-and-retention-of-lightweight-satellite-radio-tags-applied-to-the-ears-of-polar-bears-ursus-maritimus(f1006b30-737f-4430-9bae-8386d4a39c7b).html https://doi.org/10.1186/s40317-017-0124-0 https://pure.au.dk/ws/files/120389507/s40317_017_0124_0.pdf http://www.scopus.com/inward/record.url?scp=85018489707&partnerID=8YFLogxK |
genre |
Baffin Bay Baffin Bay Baffin Beaufort Sea Chukchi Chukchi Sea Greenland Kane Basin Ursus maritimus |
genre_facet |
Baffin Bay Baffin Bay Baffin Beaufort Sea Chukchi Chukchi Sea Greenland Kane Basin Ursus maritimus |
op_source |
Wiig , Ø , Born , E W , Laidre , K L , Dietz , R , Jensen , M V , Durner , G M , Pagano , A M , Regehr , E , St. Martin , M , Atkinson , S & Dyck , M 2017 , ' Performance and retention of lightweight satellite radio tags applied to the ears of polar bears (Ursus maritimus) ' , Animal Biotelemetry , vol. 5 , 9 . https://doi.org/10.1186/s40317-017-0124-0 |
op_relation |
https://pure.au.dk/portal/da/publications/performance-and-retention-of-lightweight-satellite-radio-tags-applied-to-the-ears-of-polar-bears-ursus-maritimus(f1006b30-737f-4430-9bae-8386d4a39c7b).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1186/s40317-017-0124-0 |
container_title |
Animal Biotelemetry |
container_volume |
5 |
container_issue |
1 |
_version_ |
1786836358022561792 |