Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use
1. The energetic gains from foraging and costs of movement are expected to be key drivers of animal decision-making, as their balance is a large determinant of body condition and survival. This fundamental perspective is often missing from habitat selection studies, which mainly describe correlation...
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ftleedsuniv:oai:eprints.whiterose.ac.uk:186378 2023-05-15T18:42:26+02:00 Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use Klappstein, N.J. Potts, J.R. Michelot, T. Börger, L. Pilfold, N.W. Lewis, M.A. Derocher, A.E. 2022-05 text https://eprints.whiterose.ac.uk/186378/ https://eprints.whiterose.ac.uk/186378/1/klappsteinetal2022accepted.pdf en eng Wiley https://eprints.whiterose.ac.uk/186378/1/klappsteinetal2022accepted.pdf Klappstein, N.J., Potts, J.R. orcid.org/0000-0002-8564-2904 , Michelot, T. et al. (4 more authors) (2022) Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use. Journal of Animal Ecology, 91 (5). pp. 946-957. ISSN 0021-8790 Article PeerReviewed 2022 ftleedsuniv 2023-03-23T23:17:08Z 1. The energetic gains from foraging and costs of movement are expected to be key drivers of animal decision-making, as their balance is a large determinant of body condition and survival. This fundamental perspective is often missing from habitat selection studies, which mainly describe correlations between space use and environmental features, rather than the mechanisms behind these correlations. 2. To address this gap, we present a novel parameterisation of step selection functions (SSFs), that we term the energy selection function (ESF). In this model, the likelihood of an animal selecting a movement step depends directly on the corresponding energetic gains and costs, and we can therefore assess how moving animals choose habitat based on energetic considerations. 3. The ESF retains the mathematical convenience and practicality of other SSFs and can be quickly fitted using standard software. In this article, we outline a workflow, from data gathering to statistical analysis, and use a case study of polar bears Ursus maritimus to demonstrate application of the model. 4. We explain how defining gains and costs at the scale of the movement step allows us to include information about resource distribution, landscape resistance and movement patterns. We further demonstrate this process with a case study of polar bears and show how the parameters can be interpreted in terms of selection for energetic gains and against energetic costs. 5. The ESF is a flexible framework that combines the energetic consequences of both movement and resource selection, thus incorporating a key mechanism into habitat selection analysis. Further, because it is based on familiar habitat selection models, the ESF is widely applicable to any study system where energetic gains and costs can be derived, and has immense potential for methodological extensions. Article in Journal/Newspaper Ursus maritimus White Rose Research Online (Universities of Leeds, Sheffield & York) |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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English |
description |
1. The energetic gains from foraging and costs of movement are expected to be key drivers of animal decision-making, as their balance is a large determinant of body condition and survival. This fundamental perspective is often missing from habitat selection studies, which mainly describe correlations between space use and environmental features, rather than the mechanisms behind these correlations. 2. To address this gap, we present a novel parameterisation of step selection functions (SSFs), that we term the energy selection function (ESF). In this model, the likelihood of an animal selecting a movement step depends directly on the corresponding energetic gains and costs, and we can therefore assess how moving animals choose habitat based on energetic considerations. 3. The ESF retains the mathematical convenience and practicality of other SSFs and can be quickly fitted using standard software. In this article, we outline a workflow, from data gathering to statistical analysis, and use a case study of polar bears Ursus maritimus to demonstrate application of the model. 4. We explain how defining gains and costs at the scale of the movement step allows us to include information about resource distribution, landscape resistance and movement patterns. We further demonstrate this process with a case study of polar bears and show how the parameters can be interpreted in terms of selection for energetic gains and against energetic costs. 5. The ESF is a flexible framework that combines the energetic consequences of both movement and resource selection, thus incorporating a key mechanism into habitat selection analysis. Further, because it is based on familiar habitat selection models, the ESF is widely applicable to any study system where energetic gains and costs can be derived, and has immense potential for methodological extensions. |
format |
Article in Journal/Newspaper |
author |
Klappstein, N.J. Potts, J.R. Michelot, T. Börger, L. Pilfold, N.W. Lewis, M.A. Derocher, A.E. |
spellingShingle |
Klappstein, N.J. Potts, J.R. Michelot, T. Börger, L. Pilfold, N.W. Lewis, M.A. Derocher, A.E. Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
author_facet |
Klappstein, N.J. Potts, J.R. Michelot, T. Börger, L. Pilfold, N.W. Lewis, M.A. Derocher, A.E. |
author_sort |
Klappstein, N.J. |
title |
Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
title_short |
Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
title_full |
Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
title_fullStr |
Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
title_full_unstemmed |
Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
title_sort |
energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use |
publisher |
Wiley |
publishDate |
2022 |
url |
https://eprints.whiterose.ac.uk/186378/ https://eprints.whiterose.ac.uk/186378/1/klappsteinetal2022accepted.pdf |
genre |
Ursus maritimus |
genre_facet |
Ursus maritimus |
op_relation |
https://eprints.whiterose.ac.uk/186378/1/klappsteinetal2022accepted.pdf Klappstein, N.J., Potts, J.R. orcid.org/0000-0002-8564-2904 , Michelot, T. et al. (4 more authors) (2022) Energy‐based step selection analysis : modelling the energetic drivers of animal movement and habitat use. Journal of Animal Ecology, 91 (5). pp. 946-957. ISSN 0021-8790 |
_version_ |
1766232094205280256 |