Continuous dispersal in a model of predator-prey-subsidy population dynamics
Spatial dispersion and clustering of populations is important for a complete understanding of ecological dynamics in many ecosystems. Motivated by an Arctic ecosystem involving foxes (predator), lemmings (prey), and seal carrion (subsidy), we extend the spatially homogeneous (island) model of predat...
Published in: | Ecological Modelling |
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Elsevier
2017
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Online Access: | https://doi.org/10.1016/j.ecolmodel.2017.02.017 https://ora.ox.ac.uk/objects/uuid:827c8635-3503-4548-84e0-a0ea7ec26835 |
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ftuloxford:oai:ora.ox.ac.uk:uuid:827c8635-3503-4548-84e0-a0ea7ec26835 2024-10-06T13:46:37+00:00 Continuous dispersal in a model of predator-prey-subsidy population dynamics Bassett, A Krause, A Van Gorder, R 2017-02-20 https://doi.org/10.1016/j.ecolmodel.2017.02.017 https://ora.ox.ac.uk/objects/uuid:827c8635-3503-4548-84e0-a0ea7ec26835 unknown Elsevier doi:10.1016/j.ecolmodel.2017.02.017 https://ora.ox.ac.uk/objects/uuid:827c8635-3503-4548-84e0-a0ea7ec26835 https://doi.org/10.1016/j.ecolmodel.2017.02.017 info:eu-repo/semantics/openAccess CC Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) Journal article 2017 ftuloxford https://doi.org/10.1016/j.ecolmodel.2017.02.017 2024-09-06T07:47:37Z Spatial dispersion and clustering of populations is important for a complete understanding of ecological dynamics in many ecosystems. Motivated by an Arctic ecosystem involving foxes (predator), lemmings (prey), and seal carrion (subsidy), we extend the spatially homogeneous (island) model of predator-prey-subsidy dynamics originally proposed in [A.L. Nevai and R.A. Van Gorder. Journal of Biological Dynamics, 6:891-922, 2012] to account for dispersion of predator and prey populations throughout a twodimensional domain. Our model has qualitatively similar behaviours in large regions of parameter space to the aforementioned island model. Quantitative effects due to varying the rate of dispersal and restricting the spatial extent of the subsidy are demonstrated. We observe nontrivial clustering of the predator and prey populations due to the presence of the subsidy only in a specific subregion of the domain, which suggests a novel mechanism of spatial partitioning and pattern formation due to the presence of subsidy in only part of the region of interest. Article in Journal/Newspaper Arctic ORA - Oxford University Research Archive Arctic Ecological Modelling 354 115 122 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
unknown |
description |
Spatial dispersion and clustering of populations is important for a complete understanding of ecological dynamics in many ecosystems. Motivated by an Arctic ecosystem involving foxes (predator), lemmings (prey), and seal carrion (subsidy), we extend the spatially homogeneous (island) model of predator-prey-subsidy dynamics originally proposed in [A.L. Nevai and R.A. Van Gorder. Journal of Biological Dynamics, 6:891-922, 2012] to account for dispersion of predator and prey populations throughout a twodimensional domain. Our model has qualitatively similar behaviours in large regions of parameter space to the aforementioned island model. Quantitative effects due to varying the rate of dispersal and restricting the spatial extent of the subsidy are demonstrated. We observe nontrivial clustering of the predator and prey populations due to the presence of the subsidy only in a specific subregion of the domain, which suggests a novel mechanism of spatial partitioning and pattern formation due to the presence of subsidy in only part of the region of interest. |
format |
Article in Journal/Newspaper |
author |
Bassett, A Krause, A Van Gorder, R |
spellingShingle |
Bassett, A Krause, A Van Gorder, R Continuous dispersal in a model of predator-prey-subsidy population dynamics |
author_facet |
Bassett, A Krause, A Van Gorder, R |
author_sort |
Bassett, A |
title |
Continuous dispersal in a model of predator-prey-subsidy population dynamics |
title_short |
Continuous dispersal in a model of predator-prey-subsidy population dynamics |
title_full |
Continuous dispersal in a model of predator-prey-subsidy population dynamics |
title_fullStr |
Continuous dispersal in a model of predator-prey-subsidy population dynamics |
title_full_unstemmed |
Continuous dispersal in a model of predator-prey-subsidy population dynamics |
title_sort |
continuous dispersal in a model of predator-prey-subsidy population dynamics |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.ecolmodel.2017.02.017 https://ora.ox.ac.uk/objects/uuid:827c8635-3503-4548-84e0-a0ea7ec26835 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
doi:10.1016/j.ecolmodel.2017.02.017 https://ora.ox.ac.uk/objects/uuid:827c8635-3503-4548-84e0-a0ea7ec26835 https://doi.org/10.1016/j.ecolmodel.2017.02.017 |
op_rights |
info:eu-repo/semantics/openAccess CC Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) |
op_doi |
https://doi.org/10.1016/j.ecolmodel.2017.02.017 |
container_title |
Ecological Modelling |
container_volume |
354 |
container_start_page |
115 |
op_container_end_page |
122 |
_version_ |
1812174897509564416 |