Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female
Population and species management of long-lived species such as narwhal (Monodon monoceros) require long-term ecological monitoring programs to provide baseline information on population structure and dynamics. The success of such programs is dependent on the repeatability of the methods. Here, we p...
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Canadian Science Publishing
2018
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Online Access: | https://doi.org/10.1139/as-2017-0051 https://doaj.org/article/7b805bb9f8044a269a9dab1c0b7c8621 |
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ftdoajarticles:oai:doaj.org/article:7b805bb9f8044a269a9dab1c0b7c8621 2023-05-15T14:23:39+02:00 Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female Bertrand Charry Marianne Marcoux Murray M. Humphries 2018-09-01T00:00:00Z https://doi.org/10.1139/as-2017-0051 https://doaj.org/article/7b805bb9f8044a269a9dab1c0b7c8621 EN FR eng fre Canadian Science Publishing https://doi.org/10.1139/as-2017-0051 https://doaj.org/toc/2368-7460 doi:10.1139/as-2017-0051 2368-7460 https://doaj.org/article/7b805bb9f8044a269a9dab1c0b7c8621 Arctic Science, Vol 4, Iss 4, Pp 513-524 (2018) arctic cetaceans behavior calf Environmental sciences GE1-350 Environmental engineering TA170-171 article 2018 ftdoajarticles https://doi.org/10.1139/as-2017-0051 2022-12-31T12:14:28Z Population and species management of long-lived species such as narwhal (Monodon monoceros) require long-term ecological monitoring programs to provide baseline information on population structure and dynamics. The success of such programs is dependent on the repeatability of the methods. Here, we propose a dichotomous key to identify narwhal newborns from aerial photography based on cetaceans’ mother–newborn dyad behavioral and narwhal newborn physical description. The key was tested by three inexperienced observers and one expert observer with interobserver agreement classified as fair according to the Cohen Kappa algorithm and criteria thresholds. This study gives some insight into narwhal-newborn spatial position, showing a predominant number of newborns located in the infant and echelon position. Article in Journal/Newspaper Arctic Arctic Monodon monoceros narwhal* Directory of Open Access Journals: DOAJ Articles Arctic Arctic Science 4 4 513 524 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
arctic cetaceans behavior calf Environmental sciences GE1-350 Environmental engineering TA170-171 |
spellingShingle |
arctic cetaceans behavior calf Environmental sciences GE1-350 Environmental engineering TA170-171 Bertrand Charry Marianne Marcoux Murray M. Humphries Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female |
topic_facet |
arctic cetaceans behavior calf Environmental sciences GE1-350 Environmental engineering TA170-171 |
description |
Population and species management of long-lived species such as narwhal (Monodon monoceros) require long-term ecological monitoring programs to provide baseline information on population structure and dynamics. The success of such programs is dependent on the repeatability of the methods. Here, we propose a dichotomous key to identify narwhal newborns from aerial photography based on cetaceans’ mother–newborn dyad behavioral and narwhal newborn physical description. The key was tested by three inexperienced observers and one expert observer with interobserver agreement classified as fair according to the Cohen Kappa algorithm and criteria thresholds. This study gives some insight into narwhal-newborn spatial position, showing a predominant number of newborns located in the infant and echelon position. |
format |
Article in Journal/Newspaper |
author |
Bertrand Charry Marianne Marcoux Murray M. Humphries |
author_facet |
Bertrand Charry Marianne Marcoux Murray M. Humphries |
author_sort |
Bertrand Charry |
title |
Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female |
title_short |
Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female |
title_full |
Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female |
title_fullStr |
Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female |
title_full_unstemmed |
Aerial photographic identification of narwhal (Monodon monoceros) newborns and their spatial proximity to the nearest adult female |
title_sort |
aerial photographic identification of narwhal (monodon monoceros) newborns and their spatial proximity to the nearest adult female |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
https://doi.org/10.1139/as-2017-0051 https://doaj.org/article/7b805bb9f8044a269a9dab1c0b7c8621 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Monodon monoceros narwhal* |
genre_facet |
Arctic Arctic Monodon monoceros narwhal* |
op_source |
Arctic Science, Vol 4, Iss 4, Pp 513-524 (2018) |
op_relation |
https://doi.org/10.1139/as-2017-0051 https://doaj.org/toc/2368-7460 doi:10.1139/as-2017-0051 2368-7460 https://doaj.org/article/7b805bb9f8044a269a9dab1c0b7c8621 |
op_doi |
https://doi.org/10.1139/as-2017-0051 |
container_title |
Arctic Science |
container_volume |
4 |
container_issue |
4 |
container_start_page |
513 |
op_container_end_page |
524 |
_version_ |
1766296144200073216 |