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Canada lynx use of burned areas: Conservation implications of changing fire regimes

A fundamental problem in ecology is forecasting how species will react to major disturbances. As the climate warms, large, frequent, and severe fires are restructuring forested landscapes at large spatial scales, with unknown impacts on imperilled predators. We use the United States federally Threat...

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Detalles Bibliográficos
Autores principales: Vanbianchi, Carmen M., Murphy, Melanie A., Hodges, Karen E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5383493/
https://www.ncbi.nlm.nih.gov/pubmed/28405301
http://dx.doi.org/10.1002/ece3.2824
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author Vanbianchi, Carmen M.
Murphy, Melanie A.
Hodges, Karen E.
author_facet Vanbianchi, Carmen M.
Murphy, Melanie A.
Hodges, Karen E.
author_sort Vanbianchi, Carmen M.
collection PubMed
description A fundamental problem in ecology is forecasting how species will react to major disturbances. As the climate warms, large, frequent, and severe fires are restructuring forested landscapes at large spatial scales, with unknown impacts on imperilled predators. We use the United States federally Threatened Canada lynx as a case study to examine how predators navigate recent large burns, with particular focus on habitat features and the spatial configuration (e.g., distance to edge) that enabled lynx use of these transformed landscapes. We coupled GPS location data of lynx in Washington in an area with several recent large fires and a number of GIS layers of habitat data to develop models of lynx habitat selection in recent burns. Random Forest habitat models showed lynx‐selected islands of forest skipped by large fires, residual vegetation, and areas where some trees survived to use newly burned areas. Lynx used burned areas as early as 1 year postfire, which is much earlier than the 2–4 decades postfire previously thought for this predator. These findings are encouraging for predator persistence in the face of fires, but increasingly severe fires or management that reduces postfire residual trees or slow regeneration will likely jeopardize lynx and other predators. Fire management should change to ensure heterogeneity is retained within the footprint of large fires to enable viable predator populations as fire regimes worsen with climate change.
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spelling pubmed-53834932017-04-12 Canada lynx use of burned areas: Conservation implications of changing fire regimes Vanbianchi, Carmen M. Murphy, Melanie A. Hodges, Karen E. Ecol Evol Original Research A fundamental problem in ecology is forecasting how species will react to major disturbances. As the climate warms, large, frequent, and severe fires are restructuring forested landscapes at large spatial scales, with unknown impacts on imperilled predators. We use the United States federally Threatened Canada lynx as a case study to examine how predators navigate recent large burns, with particular focus on habitat features and the spatial configuration (e.g., distance to edge) that enabled lynx use of these transformed landscapes. We coupled GPS location data of lynx in Washington in an area with several recent large fires and a number of GIS layers of habitat data to develop models of lynx habitat selection in recent burns. Random Forest habitat models showed lynx‐selected islands of forest skipped by large fires, residual vegetation, and areas where some trees survived to use newly burned areas. Lynx used burned areas as early as 1 year postfire, which is much earlier than the 2–4 decades postfire previously thought for this predator. These findings are encouraging for predator persistence in the face of fires, but increasingly severe fires or management that reduces postfire residual trees or slow regeneration will likely jeopardize lynx and other predators. Fire management should change to ensure heterogeneity is retained within the footprint of large fires to enable viable predator populations as fire regimes worsen with climate change. John Wiley and Sons Inc. 2017-03-12 /pmc/articles/PMC5383493/ /pubmed/28405301 http://dx.doi.org/10.1002/ece3.2824 Text en © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Vanbianchi, Carmen M.
Murphy, Melanie A.
Hodges, Karen E.
Canada lynx use of burned areas: Conservation implications of changing fire regimes
title Canada lynx use of burned areas: Conservation implications of changing fire regimes
title_full Canada lynx use of burned areas: Conservation implications of changing fire regimes
title_fullStr Canada lynx use of burned areas: Conservation implications of changing fire regimes
title_full_unstemmed Canada lynx use of burned areas: Conservation implications of changing fire regimes
title_short Canada lynx use of burned areas: Conservation implications of changing fire regimes
title_sort canada lynx use of burned areas: conservation implications of changing fire regimes
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5383493/
https://www.ncbi.nlm.nih.gov/pubmed/28405301
http://dx.doi.org/10.1002/ece3.2824
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