Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery
Abstract Visual and observer aerial surveys are important for monitoring wildlife populations but are subject to visibility biases where animals may go undetected. The use of infrared technology in aerial surveys has the potential to reduce visibility biases, both when recording data and in the retr...
Published in: | Ecosphere |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | https://doi.org/10.1002/ecs2.3698 https://doaj.org/article/4220c67b366b44bc887794f9bf90dd91 |
id |
ftdoajarticles:oai:doaj.org/article:4220c67b366b44bc887794f9bf90dd91 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:4220c67b366b44bc887794f9bf90dd91 2023-05-15T14:55:06+02:00 Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery Katie R. N. Florko Cody G. Carlyle Brent G. Young David J. Yurkowski Christine Michel Steven H. Ferguson 2021-08-01T00:00:00Z https://doi.org/10.1002/ecs2.3698 https://doaj.org/article/4220c67b366b44bc887794f9bf90dd91 EN eng Wiley https://doi.org/10.1002/ecs2.3698 https://doaj.org/toc/2150-8925 2150-8925 doi:10.1002/ecs2.3698 https://doaj.org/article/4220c67b366b44bc887794f9bf90dd91 Ecosphere, Vol 12, Iss 8, Pp n/a-n/a (2021) aerial survey Arctic cetacean flukeprint infrared Monodon monoceros Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1002/ecs2.3698 2022-12-31T07:06:08Z Abstract Visual and observer aerial surveys are important for monitoring wildlife populations but are subject to visibility biases where animals may go undetected. The use of infrared technology in aerial surveys has the potential to reduce visibility biases, both when recording data and in the retrospective processing of the footage, and thus complements visible wavelength photography. We used infrared video during marine mammal surveys in the high‐Arctic and indirectly detected narwhal (Monodon monoceros) via their thermal flukeprints (i.e., thermo‐stratified water mixing from fluke strokes). This novel indicator persisted for a longer duration than when the animal was at the water's surface, which likely improved the probability of an animal being observed by increasing the duration of its detectability. Using infrared to complement aerial photographic surveys may assist in monitoring whales, especially in remote areas. Our results highlight how infrared technology may be used to develop automatic detection and remote‐monitoring methodology. Article in Journal/Newspaper Arctic Monodon monoceros narwhal* Directory of Open Access Journals: DOAJ Articles Arctic Ecosphere 12 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
aerial survey Arctic cetacean flukeprint infrared Monodon monoceros Ecology QH540-549.5 |
spellingShingle |
aerial survey Arctic cetacean flukeprint infrared Monodon monoceros Ecology QH540-549.5 Katie R. N. Florko Cody G. Carlyle Brent G. Young David J. Yurkowski Christine Michel Steven H. Ferguson Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
topic_facet |
aerial survey Arctic cetacean flukeprint infrared Monodon monoceros Ecology QH540-549.5 |
description |
Abstract Visual and observer aerial surveys are important for monitoring wildlife populations but are subject to visibility biases where animals may go undetected. The use of infrared technology in aerial surveys has the potential to reduce visibility biases, both when recording data and in the retrospective processing of the footage, and thus complements visible wavelength photography. We used infrared video during marine mammal surveys in the high‐Arctic and indirectly detected narwhal (Monodon monoceros) via their thermal flukeprints (i.e., thermo‐stratified water mixing from fluke strokes). This novel indicator persisted for a longer duration than when the animal was at the water's surface, which likely improved the probability of an animal being observed by increasing the duration of its detectability. Using infrared to complement aerial photographic surveys may assist in monitoring whales, especially in remote areas. Our results highlight how infrared technology may be used to develop automatic detection and remote‐monitoring methodology. |
format |
Article in Journal/Newspaper |
author |
Katie R. N. Florko Cody G. Carlyle Brent G. Young David J. Yurkowski Christine Michel Steven H. Ferguson |
author_facet |
Katie R. N. Florko Cody G. Carlyle Brent G. Young David J. Yurkowski Christine Michel Steven H. Ferguson |
author_sort |
Katie R. N. Florko |
title |
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
title_short |
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
title_full |
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
title_fullStr |
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
title_full_unstemmed |
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
title_sort |
narwhal (monodon monoceros) detection by infrared flukeprints from aerial survey imagery |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1002/ecs2.3698 https://doaj.org/article/4220c67b366b44bc887794f9bf90dd91 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Monodon monoceros narwhal* |
genre_facet |
Arctic Monodon monoceros narwhal* |
op_source |
Ecosphere, Vol 12, Iss 8, Pp n/a-n/a (2021) |
op_relation |
https://doi.org/10.1002/ecs2.3698 https://doaj.org/toc/2150-8925 2150-8925 doi:10.1002/ecs2.3698 https://doaj.org/article/4220c67b366b44bc887794f9bf90dd91 |
op_doi |
https://doi.org/10.1002/ecs2.3698 |
container_title |
Ecosphere |
container_volume |
12 |
container_issue |
8 |
_version_ |
1766326888588902400 |