Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics
Landscape genetic analyses are typically conducted at one spatial scale. Considering multiple scales may be essential for identifying landscape features influencing gene flow. We examined landscape connectivity for woodland caribou (Rangifer tarandus caribou) at multiple spatial scales using a new a...
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ftdryad:oai:v1.datadryad.org:10255/dryad.39692 2023-05-15T18:04:23+02:00 Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics Galpern, Paul Manseau, Micheline Wilson, Paul Saskatchewan Canada 2012-05-22T18:53:30Z http://hdl.handle.net/10255/dryad.39692 https://doi.org/10.5061/dryad.r3j5d unknown doi:10.5061/dryad.r3j5d/1 doi:10.5061/dryad.r3j5d/2 doi:10.1111/j.1365-294X.2012.05677.x PMID:22724394 doi:10.5061/dryad.r3j5d Galpern P, Manseau M, Wilson P (2012) Grains of connectivity: analysis at multiple spatial scales in landscape genetics. Molecular Ecology 21(16): 3996–4009. http://hdl.handle.net/10255/dryad.39692 Landscape resistance Gene flow Patch-based landscape graphs Voronoi tessellation Landscape change Article 2012 ftdryad https://doi.org/10.5061/dryad.r3j5d https://doi.org/10.5061/dryad.r3j5d/1 https://doi.org/10.5061/dryad.r3j5d/2 https://doi.org/10.1111/j.1365-294X.2012.05677.x 2020-01-01T14:56:33Z Landscape genetic analyses are typically conducted at one spatial scale. Considering multiple scales may be essential for identifying landscape features influencing gene flow. We examined landscape connectivity for woodland caribou (Rangifer tarandus caribou) at multiple spatial scales using a new approach based on landscape graphs that creates a Voronoi tessellation of the landscape. To illustrate the potential of the method, we generated five resistance surfaces to explain how landscape pattern may influence gene flow across the range of this population. We tested each resistance surface using a raster at the spatial grain of available landscape data (200 m grid squares). We then used our method to produce up to 127 additional grains for each resistance surface. We applied a causal modelling framework with partial Mantel tests, where evidence of landscape resistance is tested against an alternative hypothesis of isolation-by-distance, and found statistically significant support for landscape resistance to gene flow in 89 of the 507 spatial grains examined. We found evidence that major roads as well as the cumulative effects of natural and anthropogenic disturbance may be contributing to the genetic structure. Using only the original grid surface yielded no evidence for landscape resistance to gene flow. Our results show that using multiple spatial grains can reveal landscape influences on genetic structure that may be overlooked with a single grain, and suggest that coarsening the grain of landcover data may be appropriate for highly-mobile species. We discuss how grains of connectivity and related analyses have potential landscape genetic applications in a broad range of systems. Article in Journal/Newspaper Rangifer tarandus Dryad Digital Repository (Duke University) Canada |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Landscape resistance Gene flow Patch-based landscape graphs Voronoi tessellation Landscape change |
spellingShingle |
Landscape resistance Gene flow Patch-based landscape graphs Voronoi tessellation Landscape change Galpern, Paul Manseau, Micheline Wilson, Paul Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics |
topic_facet |
Landscape resistance Gene flow Patch-based landscape graphs Voronoi tessellation Landscape change |
description |
Landscape genetic analyses are typically conducted at one spatial scale. Considering multiple scales may be essential for identifying landscape features influencing gene flow. We examined landscape connectivity for woodland caribou (Rangifer tarandus caribou) at multiple spatial scales using a new approach based on landscape graphs that creates a Voronoi tessellation of the landscape. To illustrate the potential of the method, we generated five resistance surfaces to explain how landscape pattern may influence gene flow across the range of this population. We tested each resistance surface using a raster at the spatial grain of available landscape data (200 m grid squares). We then used our method to produce up to 127 additional grains for each resistance surface. We applied a causal modelling framework with partial Mantel tests, where evidence of landscape resistance is tested against an alternative hypothesis of isolation-by-distance, and found statistically significant support for landscape resistance to gene flow in 89 of the 507 spatial grains examined. We found evidence that major roads as well as the cumulative effects of natural and anthropogenic disturbance may be contributing to the genetic structure. Using only the original grid surface yielded no evidence for landscape resistance to gene flow. Our results show that using multiple spatial grains can reveal landscape influences on genetic structure that may be overlooked with a single grain, and suggest that coarsening the grain of landcover data may be appropriate for highly-mobile species. We discuss how grains of connectivity and related analyses have potential landscape genetic applications in a broad range of systems. |
format |
Article in Journal/Newspaper |
author |
Galpern, Paul Manseau, Micheline Wilson, Paul |
author_facet |
Galpern, Paul Manseau, Micheline Wilson, Paul |
author_sort |
Galpern, Paul |
title |
Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics |
title_short |
Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics |
title_full |
Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics |
title_fullStr |
Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics |
title_full_unstemmed |
Data from: Grains of connectivity: analysis at multiple spatial scales in landscape genetics |
title_sort |
data from: grains of connectivity: analysis at multiple spatial scales in landscape genetics |
publishDate |
2012 |
url |
http://hdl.handle.net/10255/dryad.39692 https://doi.org/10.5061/dryad.r3j5d |
op_coverage |
Saskatchewan Canada |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Rangifer tarandus |
genre_facet |
Rangifer tarandus |
op_relation |
doi:10.5061/dryad.r3j5d/1 doi:10.5061/dryad.r3j5d/2 doi:10.1111/j.1365-294X.2012.05677.x PMID:22724394 doi:10.5061/dryad.r3j5d Galpern P, Manseau M, Wilson P (2012) Grains of connectivity: analysis at multiple spatial scales in landscape genetics. Molecular Ecology 21(16): 3996–4009. http://hdl.handle.net/10255/dryad.39692 |
op_doi |
https://doi.org/10.5061/dryad.r3j5d https://doi.org/10.5061/dryad.r3j5d/1 https://doi.org/10.5061/dryad.r3j5d/2 https://doi.org/10.1111/j.1365-294X.2012.05677.x |
_version_ |
1766175756478578688 |