Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore
Are instrumented animals representative of the population, given the potential bias caused by selective sampling and the influence of capture, handling and wearing bio-loggers? The answer is elusive due to the challenges of obtaining comparable data from individuals with and without bio-loggers. Usi...
Main Authors: | , , , , , |
---|---|
Format: | Other Non-Article Part of Journal/Newspaper |
Language: | unknown |
Published: |
2021
|
Subjects: | |
Online Access: | https://doi.org/10.6084/m9.figshare.14790458.v1 |
id |
ftsmithonian:oai:figshare.com:article/14790458 |
---|---|
record_format |
openpolar |
spelling |
ftsmithonian:oai:figshare.com:article/14790458 2023-05-15T16:32:19+02:00 Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore Cyril Milleret (10979114) Richard Bischof (2908070) Pierre Dupont (469489) Henrik Brøseth (3274410) John Odden (432630) Jenny Mattisson (676043) 2021-06-16T09:50:35Z https://doi.org/10.6084/m9.figshare.14790458.v1 unknown https://figshare.com/articles/journal_contribution/Supplementary_material_S1_GPS_collars_have_an_apparent_positive_effect_on_the_survival_of_a_large_carnivore/14790458 doi:10.6084/m9.figshare.14790458.v1 CC BY 4.0 CC-BY Ecology population level representativeness population dynamics Text Journal contribution 2021 ftsmithonian https://doi.org/10.6084/m9.figshare.14790458.v1 2021-07-01T09:43:08Z Are instrumented animals representative of the population, given the potential bias caused by selective sampling and the influence of capture, handling and wearing bio-loggers? The answer is elusive due to the challenges of obtaining comparable data from individuals with and without bio-loggers. Using non-invasive genetic data of a large carnivore, the wolverine ( Gulo gulo ) in Scandinavia and an open-population spatial capture–recapture model, we found a 16 (credible interval: 4–30) percentage points lower mortality probability for GPS-collared individuals compared to individuals without GPS collars. While the risk of dying from legal culling was comparable for collared and non-collared wolverines, the former experienced lower mortality probabilities due to causes other than legal culling. The aforementioned effect was pronounced despite a potentially lower age, and, therefore, likely higher natural mortality, of collared individuals. Reports of positive effects of bio-loggers on the survival of individuals are uncommon and we argue that GPS collars could shield animals from poaching. Our results highlight the challenges of drawing population-level inferences for populations subjected to poaching when using data from instrumented individuals. Other Non-Article Part of Journal/Newspaper Gulo gulo Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Ecology population level representativeness population dynamics |
spellingShingle |
Ecology population level representativeness population dynamics Cyril Milleret (10979114) Richard Bischof (2908070) Pierre Dupont (469489) Henrik Brøseth (3274410) John Odden (432630) Jenny Mattisson (676043) Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore |
topic_facet |
Ecology population level representativeness population dynamics |
description |
Are instrumented animals representative of the population, given the potential bias caused by selective sampling and the influence of capture, handling and wearing bio-loggers? The answer is elusive due to the challenges of obtaining comparable data from individuals with and without bio-loggers. Using non-invasive genetic data of a large carnivore, the wolverine ( Gulo gulo ) in Scandinavia and an open-population spatial capture–recapture model, we found a 16 (credible interval: 4–30) percentage points lower mortality probability for GPS-collared individuals compared to individuals without GPS collars. While the risk of dying from legal culling was comparable for collared and non-collared wolverines, the former experienced lower mortality probabilities due to causes other than legal culling. The aforementioned effect was pronounced despite a potentially lower age, and, therefore, likely higher natural mortality, of collared individuals. Reports of positive effects of bio-loggers on the survival of individuals are uncommon and we argue that GPS collars could shield animals from poaching. Our results highlight the challenges of drawing population-level inferences for populations subjected to poaching when using data from instrumented individuals. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Cyril Milleret (10979114) Richard Bischof (2908070) Pierre Dupont (469489) Henrik Brøseth (3274410) John Odden (432630) Jenny Mattisson (676043) |
author_facet |
Cyril Milleret (10979114) Richard Bischof (2908070) Pierre Dupont (469489) Henrik Brøseth (3274410) John Odden (432630) Jenny Mattisson (676043) |
author_sort |
Cyril Milleret (10979114) |
title |
Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore |
title_short |
Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore |
title_full |
Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore |
title_fullStr |
Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore |
title_full_unstemmed |
Supplementary material S1: GPS collars have an apparent positive effect on the survival of a large carnivore |
title_sort |
supplementary material s1: gps collars have an apparent positive effect on the survival of a large carnivore |
publishDate |
2021 |
url |
https://doi.org/10.6084/m9.figshare.14790458.v1 |
genre |
Gulo gulo |
genre_facet |
Gulo gulo |
op_relation |
https://figshare.com/articles/journal_contribution/Supplementary_material_S1_GPS_collars_have_an_apparent_positive_effect_on_the_survival_of_a_large_carnivore/14790458 doi:10.6084/m9.figshare.14790458.v1 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.14790458.v1 |
_version_ |
1766022079044386816 |