Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals

Abstract Linear infrastructure development and resulting habitat fragmentation are expanding in Neotropical forests, and arboreal mammals may be disproportionately impacted by these linear habitat clearings. Maintaining canopy connectivity through preservation of connecting branches (i.e. natural ca...

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Autores principales:	Tremaine Gregory, Farah Carrasco-Rueda, Alfonso Alonso, Joseph Kolowski, Jessica L. Deichmann
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d29035c54d9f4b7b87c30660f145dec0
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spelling	oai:doaj.org-article:d29035c54d9f4b7b87c30660f145dec02021-12-02T16:06:10ZNatural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals10.1038/s41598-017-04112-x2045-2322https://doaj.org/article/d29035c54d9f4b7b87c30660f145dec02017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04112-xhttps://doaj.org/toc/2045-2322Abstract Linear infrastructure development and resulting habitat fragmentation are expanding in Neotropical forests, and arboreal mammals may be disproportionately impacted by these linear habitat clearings. Maintaining canopy connectivity through preservation of connecting branches (i.e. natural canopy bridges) may help mitigate that impact. Using camera traps, we evaluated crossing rates of a pipeline right-of-way in a control area with no bridges and in a test area where 13 bridges were left by the pipeline construction company. Monitoring all canopy crossing points for a year (7,102 canopy camera nights), we confirmed bridge use by 25 mammal species from 12 families. With bridge use beginning immediately after exposure and increasing over time, use rates were over two orders of magnitude higher than on the ground. We also found a positive relationship between a bridge’s use rate and the number of species that used it, suggesting well-used bridges benefit multiple species. Data suggest bridge use may be related to a combination of bridge branch connectivity, multiple connections, connectivity to adjacent forest, and foliage cover. Given the high use rate and minimal cost, we recommend all linear infrastructure projects in forests with arboreal mammal populations include canopy bridges.Tremaine GregoryFarah Carrasco-RuedaAlfonso AlonsoJoseph KolowskiJessica L. DeichmannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tremaine Gregory Farah Carrasco-Rueda Alfonso Alonso Joseph Kolowski Jessica L. Deichmann Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
description	Abstract Linear infrastructure development and resulting habitat fragmentation are expanding in Neotropical forests, and arboreal mammals may be disproportionately impacted by these linear habitat clearings. Maintaining canopy connectivity through preservation of connecting branches (i.e. natural canopy bridges) may help mitigate that impact. Using camera traps, we evaluated crossing rates of a pipeline right-of-way in a control area with no bridges and in a test area where 13 bridges were left by the pipeline construction company. Monitoring all canopy crossing points for a year (7,102 canopy camera nights), we confirmed bridge use by 25 mammal species from 12 families. With bridge use beginning immediately after exposure and increasing over time, use rates were over two orders of magnitude higher than on the ground. We also found a positive relationship between a bridge’s use rate and the number of species that used it, suggesting well-used bridges benefit multiple species. Data suggest bridge use may be related to a combination of bridge branch connectivity, multiple connections, connectivity to adjacent forest, and foliage cover. Given the high use rate and minimal cost, we recommend all linear infrastructure projects in forests with arboreal mammal populations include canopy bridges.
format	article
author	Tremaine Gregory Farah Carrasco-Rueda Alfonso Alonso Joseph Kolowski Jessica L. Deichmann
author_facet	Tremaine Gregory Farah Carrasco-Rueda Alfonso Alonso Joseph Kolowski Jessica L. Deichmann
author_sort	Tremaine Gregory
title	Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
title_short	Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
title_full	Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
title_fullStr	Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
title_full_unstemmed	Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
title_sort	natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d29035c54d9f4b7b87c30660f145dec0
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_version_	1718385117438672896

Natural canopy bridges effectively mitigate tropical forest fragmentation for arboreal mammals

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