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Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling

Anthropogenic and natural habitat fragmentation inhibit movement of animals through landscapes. An important challenge for connectivity conservation is determining which conditions facilitate or limit movements, so that these areas can be prioritized for protection or restoration. We examine Canada...

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Autores principales: Vanbianchi, Carmen, Gaines, William L., Murphy, Melanie A., Hodges, Karen E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6262728/
https://www.ncbi.nlm.nih.gov/pubmed/30519444
http://dx.doi.org/10.1002/ece3.4605
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author Vanbianchi, Carmen
Gaines, William L.
Murphy, Melanie A.
Hodges, Karen E.
author_facet Vanbianchi, Carmen
Gaines, William L.
Murphy, Melanie A.
Hodges, Karen E.
author_sort Vanbianchi, Carmen
collection PubMed
description Anthropogenic and natural habitat fragmentation inhibit movement of animals through landscapes. An important challenge for connectivity conservation is determining which conditions facilitate or limit movements, so that these areas can be prioritized for protection or restoration. We examine Canada lynx Lynx canadensis habitat connectivity in the fragmented North Cascade Mountains of Washington, as an example of a highly mobile species that is specialized both on prey and in habitat needs. We identify lynx Habitat Concentration Areas based on Core Habitat Models, parameterize resistance surfaces from our Matrix Habitat Model, and develop linkages of habitat lynx use to move between patches of high quality habitat. We identify a number of linkages for lynx comprised of habitat conditions that differed from high quality core patches identified from our habitat modeling. Radio‐locations from lynx confirm lower‐quality habitats of low resistance to movement were used by traveling lynx. Our results thus suggest traveling lynx do indeed use a much broader range of habitats than do lynx moving within core areas. For lynx in the North Cascades, our results show that maintaining connectivity will require preserving habitats and linkages that would previously have been deemed unsuitable for lynx. Maintaining connectivity for lynx is particularly important given the many recent large wildfires in this region that have reduced the number of mature forest stands that form prime habitat for lynx. Policy implications. Our results strongly suggest that habitat connectivity models should be based on empirical information of animal location data and focused on matrix habitat analysis. Traveling predators use a wide suite of habitats, resulting in more and broader linkage zones that should inform conservation efforts. Failure to identify these areas of functional connectivity could result in the oversight of usable linkage zones, leaving them without protection and vulnerable to degradation.
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spelling pubmed-62627282018-12-05 Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling Vanbianchi, Carmen Gaines, William L. Murphy, Melanie A. Hodges, Karen E. Ecol Evol Original Research Anthropogenic and natural habitat fragmentation inhibit movement of animals through landscapes. An important challenge for connectivity conservation is determining which conditions facilitate or limit movements, so that these areas can be prioritized for protection or restoration. We examine Canada lynx Lynx canadensis habitat connectivity in the fragmented North Cascade Mountains of Washington, as an example of a highly mobile species that is specialized both on prey and in habitat needs. We identify lynx Habitat Concentration Areas based on Core Habitat Models, parameterize resistance surfaces from our Matrix Habitat Model, and develop linkages of habitat lynx use to move between patches of high quality habitat. We identify a number of linkages for lynx comprised of habitat conditions that differed from high quality core patches identified from our habitat modeling. Radio‐locations from lynx confirm lower‐quality habitats of low resistance to movement were used by traveling lynx. Our results thus suggest traveling lynx do indeed use a much broader range of habitats than do lynx moving within core areas. For lynx in the North Cascades, our results show that maintaining connectivity will require preserving habitats and linkages that would previously have been deemed unsuitable for lynx. Maintaining connectivity for lynx is particularly important given the many recent large wildfires in this region that have reduced the number of mature forest stands that form prime habitat for lynx. Policy implications. Our results strongly suggest that habitat connectivity models should be based on empirical information of animal location data and focused on matrix habitat analysis. Traveling predators use a wide suite of habitats, resulting in more and broader linkage zones that should inform conservation efforts. Failure to identify these areas of functional connectivity could result in the oversight of usable linkage zones, leaving them without protection and vulnerable to degradation. John Wiley and Sons Inc. 2018-10-26 /pmc/articles/PMC6262728/ /pubmed/30519444 http://dx.doi.org/10.1002/ece3.4605 Text en © 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the 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
Gaines, William L.
Murphy, Melanie A.
Hodges, Karen E.
Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling
title Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling
title_full Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling
title_fullStr Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling
title_full_unstemmed Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling
title_short Navigating fragmented landscapes: Canada lynx brave poor quality habitats while traveling
title_sort navigating fragmented landscapes: canada lynx brave poor quality habitats while traveling
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6262728/
https://www.ncbi.nlm.nih.gov/pubmed/30519444
http://dx.doi.org/10.1002/ece3.4605
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