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Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes
Developing a rigorous understanding of multiple global threats to species persistence requires the use of integrated modeling methods that capture processes which influence species distributions. Species distribution models (SDMs) coupled with population dynamics models can incorporate relationships...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4958004/ https://www.ncbi.nlm.nih.gov/pubmed/27547529 http://dx.doi.org/10.7717/peerj.2204 |
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author | Naujokaitis-Lewis, Ilona Curtis, Janelle M.R. |
author_facet | Naujokaitis-Lewis, Ilona Curtis, Janelle M.R. |
author_sort | Naujokaitis-Lewis, Ilona |
collection | PubMed |
description | Developing a rigorous understanding of multiple global threats to species persistence requires the use of integrated modeling methods that capture processes which influence species distributions. Species distribution models (SDMs) coupled with population dynamics models can incorporate relationships between changing environments and demographics and are increasingly used to quantify relative extinction risks associated with climate and land-use changes. Despite their appeal, uncertainties associated with complex models can undermine their usefulness for advancing predictive ecology and informing conservation management decisions. We developed a computationally-efficient and freely available tool (GRIP 2.0) that implements and automates a global sensitivity analysis of coupled SDM-population dynamics models for comparing the relative influence of demographic parameters and habitat attributes on predicted extinction risk. Advances over previous global sensitivity analyses include the ability to vary habitat suitability across gradients, as well as habitat amount and configuration of spatially-explicit suitability maps of real and simulated landscapes. Using GRIP 2.0, we carried out a multi-model global sensitivity analysis of a coupled SDM-population dynamics model of whitebark pine (Pinus albicaulis) in Mount Rainier National Park as a case study and quantified the relative influence of input parameters and their interactions on model predictions. Our results differed from the one-at-time analyses used in the original study, and we found that the most influential parameters included the total amount of suitable habitat within the landscape, survival rates, and effects of a prevalent disease, white pine blister rust. Strong interactions between habitat amount and survival rates of older trees suggests the importance of habitat in mediating the negative influences of white pine blister rust. Our results underscore the importance of considering habitat attributes along with demographic parameters in sensitivity routines. GRIP 2.0 is an important decision-support tool that can be used to prioritize research, identify habitat-based thresholds and management intervention points to improve probability of species persistence, and evaluate trade-offs of alternative management options. |
format | Online Article Text |
id | pubmed-4958004 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-49580042016-08-19 Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes Naujokaitis-Lewis, Ilona Curtis, Janelle M.R. PeerJ Biogeography Developing a rigorous understanding of multiple global threats to species persistence requires the use of integrated modeling methods that capture processes which influence species distributions. Species distribution models (SDMs) coupled with population dynamics models can incorporate relationships between changing environments and demographics and are increasingly used to quantify relative extinction risks associated with climate and land-use changes. Despite their appeal, uncertainties associated with complex models can undermine their usefulness for advancing predictive ecology and informing conservation management decisions. We developed a computationally-efficient and freely available tool (GRIP 2.0) that implements and automates a global sensitivity analysis of coupled SDM-population dynamics models for comparing the relative influence of demographic parameters and habitat attributes on predicted extinction risk. Advances over previous global sensitivity analyses include the ability to vary habitat suitability across gradients, as well as habitat amount and configuration of spatially-explicit suitability maps of real and simulated landscapes. Using GRIP 2.0, we carried out a multi-model global sensitivity analysis of a coupled SDM-population dynamics model of whitebark pine (Pinus albicaulis) in Mount Rainier National Park as a case study and quantified the relative influence of input parameters and their interactions on model predictions. Our results differed from the one-at-time analyses used in the original study, and we found that the most influential parameters included the total amount of suitable habitat within the landscape, survival rates, and effects of a prevalent disease, white pine blister rust. Strong interactions between habitat amount and survival rates of older trees suggests the importance of habitat in mediating the negative influences of white pine blister rust. Our results underscore the importance of considering habitat attributes along with demographic parameters in sensitivity routines. GRIP 2.0 is an important decision-support tool that can be used to prioritize research, identify habitat-based thresholds and management intervention points to improve probability of species persistence, and evaluate trade-offs of alternative management options. PeerJ Inc. 2016-07-19 /pmc/articles/PMC4958004/ /pubmed/27547529 http://dx.doi.org/10.7717/peerj.2204 Text en ©2016 Naujokaitis-Lewis and Curtis http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Biogeography Naujokaitis-Lewis, Ilona Curtis, Janelle M.R. Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
title | Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
title_full | Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
title_fullStr | Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
title_full_unstemmed | Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
title_short | Advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
title_sort | advances in global sensitivity analyses of demographic-based species distribution models to address uncertainties in dynamic landscapes |
topic | Biogeography |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4958004/ https://www.ncbi.nlm.nih.gov/pubmed/27547529 http://dx.doi.org/10.7717/peerj.2204 |
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