Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures

Abstract Although roads are widely seen as dispersal barriers, their genetic consequences for animals that experience large fluctuations in population density are poorly documented. We developed a spatially paired experimental design to assess the genetic impacts of roads on cyclic voles (Microtus a...

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Autores principales:	Julio C. Dominguez, María Calero-Riestra, Pedro P. Olea, Juan E. Malo, Christopher P. Burridge, Kirstin Proft, Sonia Illanas, Javier Viñuela, Jesús T. García
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b9eb9555f1424b43a5d5b8f525c20a6e
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spelling	oai:doaj.org-article:b9eb9555f1424b43a5d5b8f525c20a6e2021-12-02T17:22:57ZLack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures10.1038/s41598-021-91824-w2045-2322https://doaj.org/article/b9eb9555f1424b43a5d5b8f525c20a6e2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91824-whttps://doaj.org/toc/2045-2322Abstract Although roads are widely seen as dispersal barriers, their genetic consequences for animals that experience large fluctuations in population density are poorly documented. We developed a spatially paired experimental design to assess the genetic impacts of roads on cyclic voles (Microtus arvalis) during a high-density phase in North-Western Spain. We compared genetic patterns from 15 paired plots bisected by three different barrier types, using linear mixed models and computing effect sizes to assess the importance of each type, and the influence of road features like width or the age of the infrastructure. Evidence of effects by roads on genetic diversity and differentiation were lacking. We speculate that the recurrent (each 3–5 generations) episodes of massive dispersal associated with population density peaks can homogenize populations and mitigate the possible genetic impact of landscape fragmentation by roads. This study highlights the importance of developing spatially replicated experimental designs that allow us to consider the large natural spatial variation in genetic parameters. More generally, these results contribute to our understanding of the not well explored effects of habitat fragmentation on dispersal in species showing “boom-bust” dynamics.Julio C. DominguezMaría Calero-RiestraPedro P. OleaJuan E. MaloChristopher P. BurridgeKirstin ProftSonia IllanasJavier ViñuelaJesús T. GarcíaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Julio C. Dominguez María Calero-Riestra Pedro P. Olea Juan E. Malo Christopher P. Burridge Kirstin Proft Sonia Illanas Javier Viñuela Jesús T. García Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
description	Abstract Although roads are widely seen as dispersal barriers, their genetic consequences for animals that experience large fluctuations in population density are poorly documented. We developed a spatially paired experimental design to assess the genetic impacts of roads on cyclic voles (Microtus arvalis) during a high-density phase in North-Western Spain. We compared genetic patterns from 15 paired plots bisected by three different barrier types, using linear mixed models and computing effect sizes to assess the importance of each type, and the influence of road features like width or the age of the infrastructure. Evidence of effects by roads on genetic diversity and differentiation were lacking. We speculate that the recurrent (each 3–5 generations) episodes of massive dispersal associated with population density peaks can homogenize populations and mitigate the possible genetic impact of landscape fragmentation by roads. This study highlights the importance of developing spatially replicated experimental designs that allow us to consider the large natural spatial variation in genetic parameters. More generally, these results contribute to our understanding of the not well explored effects of habitat fragmentation on dispersal in species showing “boom-bust” dynamics.
format	article
author	Julio C. Dominguez María Calero-Riestra Pedro P. Olea Juan E. Malo Christopher P. Burridge Kirstin Proft Sonia Illanas Javier Viñuela Jesús T. García
author_facet	Julio C. Dominguez María Calero-Riestra Pedro P. Olea Juan E. Malo Christopher P. Burridge Kirstin Proft Sonia Illanas Javier Viñuela Jesús T. García
author_sort	Julio C. Dominguez
title	Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
title_short	Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
title_full	Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
title_fullStr	Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
title_full_unstemmed	Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
title_sort	lack of detectable genetic isolation in the cyclic rodent microtus arvalis despite large landscape fragmentation owing to transportation infrastructures
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b9eb9555f1424b43a5d5b8f525c20a6e
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Lack of detectable genetic isolation in the cyclic rodent Microtus arvalis despite large landscape fragmentation owing to transportation infrastructures

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