Estimation and simulation of foraging trips in land-based marine predators
The behavior of colony-based marine predators is the focus of much research globally. Large telemetry and tracking data sets have been collected for this group of animals, and are accompanied by many empirical studies that seek to segment tracks in some useful way, as well as theoretical studies of...
Published in: | Ecology |
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Online Access: | https://researchers.mq.edu.au/en/publications/6896258d-a4be-4af1-afe9-c0cbf4ff3f14 https://doi.org/10.1002/ecy.1880 http://www.scopus.com/inward/record.url?scp=85020443588&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/6896258d-a4be-4af1-afe9-c0cbf4ff3f14 2024-06-23T07:52:28+00:00 Estimation and simulation of foraging trips in land-based marine predators Michelot, Théo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. 2017-07 https://researchers.mq.edu.au/en/publications/6896258d-a4be-4af1-afe9-c0cbf4ff3f14 https://doi.org/10.1002/ecy.1880 http://www.scopus.com/inward/record.url?scp=85020443588&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Michelot , T , Langrock , R , Bestley , S , Jonsen , I D , Photopoulou , T & Patterson , T A 2017 , ' Estimation and simulation of foraging trips in land-based marine predators ' , Ecology , vol. 98 , no. 7 , pp. 1932-1944 . https://doi.org/10.1002/ecy.1880 animal telemetry central place foraging hidden Markov model Mirounga leonina southern elephant seal article 2017 ftmacquarieunicr https://doi.org/10.1002/ecy.1880 2024-05-29T23:48:42Z The behavior of colony-based marine predators is the focus of much research globally. Large telemetry and tracking data sets have been collected for this group of animals, and are accompanied by many empirical studies that seek to segment tracks in some useful way, as well as theoretical studies of optimal foraging strategies. However, relatively few studies have detailed statistical methods for inferring behaviors in central place foraging trips. In this paper we describe an approach based on hidden Markov models, which splits foraging trips into segments labeled as "outbound", "search", "forage", and "inbound". By structuring the hidden Markov model transition matrix appropriately, the model naturally handles the sequence of behaviors within a foraging trip. Additionally, by structuring the model in this way, we are able to develop realistic simulations from the fitted model. We demonstrate our approach on data from southern elephant seals (Mirounga leonina) tagged on Kerguelen Island in the Southern Ocean. We discuss the differences between our 4-state model and the widely used 2-state model, and the advantages and disadvantages of employing a more complex model. Article in Journal/Newspaper Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean Macquarie University Research Portal Kerguelen Kerguelen Island ENVELOPE(69.500,69.500,-49.250,-49.250) Southern Ocean Ecology 98 7 1932 1944 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
animal telemetry central place foraging hidden Markov model Mirounga leonina southern elephant seal |
spellingShingle |
animal telemetry central place foraging hidden Markov model Mirounga leonina southern elephant seal Michelot, Théo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. Estimation and simulation of foraging trips in land-based marine predators |
topic_facet |
animal telemetry central place foraging hidden Markov model Mirounga leonina southern elephant seal |
description |
The behavior of colony-based marine predators is the focus of much research globally. Large telemetry and tracking data sets have been collected for this group of animals, and are accompanied by many empirical studies that seek to segment tracks in some useful way, as well as theoretical studies of optimal foraging strategies. However, relatively few studies have detailed statistical methods for inferring behaviors in central place foraging trips. In this paper we describe an approach based on hidden Markov models, which splits foraging trips into segments labeled as "outbound", "search", "forage", and "inbound". By structuring the hidden Markov model transition matrix appropriately, the model naturally handles the sequence of behaviors within a foraging trip. Additionally, by structuring the model in this way, we are able to develop realistic simulations from the fitted model. We demonstrate our approach on data from southern elephant seals (Mirounga leonina) tagged on Kerguelen Island in the Southern Ocean. We discuss the differences between our 4-state model and the widely used 2-state model, and the advantages and disadvantages of employing a more complex model. |
format |
Article in Journal/Newspaper |
author |
Michelot, Théo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. |
author_facet |
Michelot, Théo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. |
author_sort |
Michelot, Théo |
title |
Estimation and simulation of foraging trips in land-based marine predators |
title_short |
Estimation and simulation of foraging trips in land-based marine predators |
title_full |
Estimation and simulation of foraging trips in land-based marine predators |
title_fullStr |
Estimation and simulation of foraging trips in land-based marine predators |
title_full_unstemmed |
Estimation and simulation of foraging trips in land-based marine predators |
title_sort |
estimation and simulation of foraging trips in land-based marine predators |
publishDate |
2017 |
url |
https://researchers.mq.edu.au/en/publications/6896258d-a4be-4af1-afe9-c0cbf4ff3f14 https://doi.org/10.1002/ecy.1880 http://www.scopus.com/inward/record.url?scp=85020443588&partnerID=8YFLogxK |
long_lat |
ENVELOPE(69.500,69.500,-49.250,-49.250) |
geographic |
Kerguelen Kerguelen Island Southern Ocean |
geographic_facet |
Kerguelen Kerguelen Island Southern Ocean |
genre |
Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean |
genre_facet |
Elephant Seal Elephant Seals Mirounga leonina Southern Elephant Seal Southern Elephant Seals Southern Ocean |
op_source |
Michelot , T , Langrock , R , Bestley , S , Jonsen , I D , Photopoulou , T & Patterson , T A 2017 , ' Estimation and simulation of foraging trips in land-based marine predators ' , Ecology , vol. 98 , no. 7 , pp. 1932-1944 . https://doi.org/10.1002/ecy.1880 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/ecy.1880 |
container_title |
Ecology |
container_volume |
98 |
container_issue |
7 |
container_start_page |
1932 |
op_container_end_page |
1944 |
_version_ |
1802643777091796992 |