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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Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2017
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/estimation-and-simulation-of-foraging-trips-in-landbased-marine-predators(00daa32a-620c-440a-b0f8-bbbe72d84c41).html https://doi.org/10.1002/ecy.1880 https://research-repository.st-andrews.ac.uk/bitstream/10023/13114/1/Michelot_2017_Ecology_ForagingTrips_FinalPubVersion.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/00daa32a-620c-440a-b0f8-bbbe72d84c41 2024-06-23T07:52:28+00:00 Estimation and simulation of foraging trips in land-based marine predators Michelot, Theo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. 2017-07 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/estimation-and-simulation-of-foraging-trips-in-landbased-marine-predators(00daa32a-620c-440a-b0f8-bbbe72d84c41).html https://doi.org/10.1002/ecy.1880 https://research-repository.st-andrews.ac.uk/bitstream/10023/13114/1/Michelot_2017_Ecology_ForagingTrips_FinalPubVersion.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/estimation-and-simulation-of-foraging-trips-in-landbased-marine-predators(00daa32a-620c-440a-b0f8-bbbe72d84c41).html info:eu-repo/semantics/openAccess 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 ftunstandrewcris https://doi.org/10.1002/ecy.1880 2024-06-13T01:00:57Z 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 University of St Andrews: Research Portal Southern Ocean Kerguelen Kerguelen Island ENVELOPE(69.500,69.500,-49.250,-49.250) Ecology 98 7 1932 1944 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
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, Theo 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, Theo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. |
author_facet |
Michelot, Theo Langrock, Roland Bestley, Sophie Jonsen, Ian D. Photopoulou, Theoni Patterson, Toby A. |
author_sort |
Michelot, Theo |
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://research-portal.st-andrews.ac.uk/en/researchoutput/estimation-and-simulation-of-foraging-trips-in-landbased-marine-predators(00daa32a-620c-440a-b0f8-bbbe72d84c41).html https://doi.org/10.1002/ecy.1880 https://research-repository.st-andrews.ac.uk/bitstream/10023/13114/1/Michelot_2017_Ecology_ForagingTrips_FinalPubVersion.pdf |
long_lat |
ENVELOPE(69.500,69.500,-49.250,-49.250) |
geographic |
Southern Ocean Kerguelen Kerguelen Island |
geographic_facet |
Southern Ocean Kerguelen Kerguelen Island |
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_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/estimation-and-simulation-of-foraging-trips-in-landbased-marine-predators(00daa32a-620c-440a-b0f8-bbbe72d84c41).html |
op_rights |
info:eu-repo/semantics/openAccess |
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_ |
1802643777287880704 |