Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models
For deep-diving, wide-ranging marine predators, foraging behaviour is often inferred from movement data. Various metrics are used to do this, and recently, metrics have been developed that consider both horizontal movement and vertical dive behaviour to better describe the use of the 3-dimensional e...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | https://researchers.mq.edu.au/en/publications/a03aefd7-641f-4e3a-b0fe-fe87b4c190b4 https://doi.org/10.3354/meps11947 http://www.scopus.com/inward/record.url?scp=85007560455&partnerID=8YFLogxK |
id |
ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/a03aefd7-641f-4e3a-b0fe-fe87b4c190b4 |
---|---|
record_format |
openpolar |
spelling |
ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/a03aefd7-641f-4e3a-b0fe-fe87b4c190b4 2023-05-15T16:05:43+02:00 Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models Pascoe, Penelope Lea, Mary Anne Mattlin, Rob H. McMahon, Clive R. Harcourt, Robert Thompson, David Torres, Leigh Vinette-Herrin, Kimberly Hindell, Mark A. 2016-12-29 https://researchers.mq.edu.au/en/publications/a03aefd7-641f-4e3a-b0fe-fe87b4c190b4 https://doi.org/10.3354/meps11947 http://www.scopus.com/inward/record.url?scp=85007560455&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Pascoe , P , Lea , M A , Mattlin , R H , McMahon , C R , Harcourt , R , Thompson , D , Torres , L , Vinette-Herrin , K & Hindell , M A 2016 , ' Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models ' , Marine Ecology Progress Series , vol. 562 , pp. 181-192 . https://doi.org/10.3354/meps11947 First passage time Foraging Habitat Mirounga leonina article 2016 ftmacquarieunicr https://doi.org/10.3354/meps11947 2022-11-06T06:46:37Z For deep-diving, wide-ranging marine predators, foraging behaviour is often inferred from movement data. Various metrics are used to do this, and recently, metrics have been developed that consider both horizontal movement and vertical dive behaviour to better describe the use of the 3-dimensional environment these animals inhabit. However, the efficacy of these different metrics in predicting behavioural state is poorly understood. We used first passage time (2-dimensional) and first bottom time (3-dimensional) analyses on tracks derived from satelliterelayed data loggers to quantify and determine seal behavioural state while foraging at sea. Movement and dive data were collected from 38 southern elephant seals Mirounga leonina from Macquarie and Campbell Islands (in the Pacific sector of the Southern Ocean). Using a suite of environmental variables, linear mixed-effect models were derived for the 2 broad habitats visited by the seals: shelf and open ocean. The best-fitting models for each foraging metric in each habitat were then compared using a cross validation analysis to identify which foraging metric produced the best predictions of habitat use. In shelf habitats, the 3-dimensional foraging metric provided better predictions than the 2-dimensional metric, while the 2-dimensional foraging metric resulted in the best predictive capacity in the open ocean habitats. These findings highlight the importance of considering the appropriate foraging metrics when modelling foraging behaviour. Article in Journal/Newspaper Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean Macquarie University Research Portal Southern Ocean Pacific Campbell Islands ENVELOPE(-103.668,-103.668,56.984,56.984) Marine Ecology Progress Series 562 181 192 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
First passage time Foraging Habitat Mirounga leonina |
spellingShingle |
First passage time Foraging Habitat Mirounga leonina Pascoe, Penelope Lea, Mary Anne Mattlin, Rob H. McMahon, Clive R. Harcourt, Robert Thompson, David Torres, Leigh Vinette-Herrin, Kimberly Hindell, Mark A. Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
topic_facet |
First passage time Foraging Habitat Mirounga leonina |
description |
For deep-diving, wide-ranging marine predators, foraging behaviour is often inferred from movement data. Various metrics are used to do this, and recently, metrics have been developed that consider both horizontal movement and vertical dive behaviour to better describe the use of the 3-dimensional environment these animals inhabit. However, the efficacy of these different metrics in predicting behavioural state is poorly understood. We used first passage time (2-dimensional) and first bottom time (3-dimensional) analyses on tracks derived from satelliterelayed data loggers to quantify and determine seal behavioural state while foraging at sea. Movement and dive data were collected from 38 southern elephant seals Mirounga leonina from Macquarie and Campbell Islands (in the Pacific sector of the Southern Ocean). Using a suite of environmental variables, linear mixed-effect models were derived for the 2 broad habitats visited by the seals: shelf and open ocean. The best-fitting models for each foraging metric in each habitat were then compared using a cross validation analysis to identify which foraging metric produced the best predictions of habitat use. In shelf habitats, the 3-dimensional foraging metric provided better predictions than the 2-dimensional metric, while the 2-dimensional foraging metric resulted in the best predictive capacity in the open ocean habitats. These findings highlight the importance of considering the appropriate foraging metrics when modelling foraging behaviour. |
format |
Article in Journal/Newspaper |
author |
Pascoe, Penelope Lea, Mary Anne Mattlin, Rob H. McMahon, Clive R. Harcourt, Robert Thompson, David Torres, Leigh Vinette-Herrin, Kimberly Hindell, Mark A. |
author_facet |
Pascoe, Penelope Lea, Mary Anne Mattlin, Rob H. McMahon, Clive R. Harcourt, Robert Thompson, David Torres, Leigh Vinette-Herrin, Kimberly Hindell, Mark A. |
author_sort |
Pascoe, Penelope |
title |
Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
title_short |
Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
title_full |
Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
title_fullStr |
Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
title_full_unstemmed |
Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
title_sort |
assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models |
publishDate |
2016 |
url |
https://researchers.mq.edu.au/en/publications/a03aefd7-641f-4e3a-b0fe-fe87b4c190b4 https://doi.org/10.3354/meps11947 http://www.scopus.com/inward/record.url?scp=85007560455&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-103.668,-103.668,56.984,56.984) |
geographic |
Southern Ocean Pacific Campbell Islands |
geographic_facet |
Southern Ocean Pacific Campbell Islands |
genre |
Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean |
genre_facet |
Elephant Seals Mirounga leonina Southern Elephant Seals Southern Ocean |
op_source |
Pascoe , P , Lea , M A , Mattlin , R H , McMahon , C R , Harcourt , R , Thompson , D , Torres , L , Vinette-Herrin , K & Hindell , M A 2016 , ' Assessing the utility of two-and three-dimensional behavioural metrics in habitat usage models ' , Marine Ecology Progress Series , vol. 562 , pp. 181-192 . https://doi.org/10.3354/meps11947 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.3354/meps11947 |
container_title |
Marine Ecology Progress Series |
container_volume |
562 |
container_start_page |
181 |
op_container_end_page |
192 |
_version_ |
1766401619024412672 |