Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes

Abstract Wildfire regimes are being altered in ecosystems worldwide. The density of reptiles responds to fires and changes to habitat structure. Some of the most vulnerable ecosystems to human-increased fire frequency are old-growth Araucaria araucana forests of the southern Andes. We investigated t...

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Autores principales:	José Infante, Fernando J. Novoa, José Tomás Ibarra, Don J. Melnick, Kevin L. Griffin, Cristián Bonacic
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4a2dd54ed89940ecb15fc53ace68202c
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spelling	oai:doaj.org-article:4a2dd54ed89940ecb15fc53ace68202c2021-11-28T12:21:49ZAltered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes10.1038/s41598-021-02169-32045-2322https://doaj.org/article/4a2dd54ed89940ecb15fc53ace68202c2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02169-3https://doaj.org/toc/2045-2322Abstract Wildfire regimes are being altered in ecosystems worldwide. The density of reptiles responds to fires and changes to habitat structure. Some of the most vulnerable ecosystems to human-increased fire frequency are old-growth Araucaria araucana forests of the southern Andes. We investigated the effects of wildfires on the density and richness of a lizard community in these ecosystems, considering fire frequency and elapsed time since last fire. During the 2018/2019 southern summer season, we conducted 71 distance sampling transects to detect lizards in Araucaria forests of Chile in four fire “treatments”: (1) unburned control, (2) long-term recovery, (3) short-term recovery, and (4) burned twice. We detected 713 lizards from 7 species. We found that the density and richness of lizards are impacted by wildfire frequency and time of recovery, mediated by the modification of habitat structure. The lizard community varied from a dominant arboreal species (L. pictus) in unburned and long-recovered stands, to a combination of ground-dwelling species (L. lemniscatus and L. araucaniensis) in areas affected by two fires. Araucaria forests provided key habitat features to forest reptiles after fires, but the persistence of these old-growth forests and associated biodiversity may be threatened given the increase in fire frequency.José InfanteFernando J. NovoaJosé Tomás IbarraDon J. MelnickKevin L. GriffinCristián BonacicNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q José Infante Fernando J. Novoa José Tomás Ibarra Don J. Melnick Kevin L. Griffin Cristián Bonacic Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes
description	Abstract Wildfire regimes are being altered in ecosystems worldwide. The density of reptiles responds to fires and changes to habitat structure. Some of the most vulnerable ecosystems to human-increased fire frequency are old-growth Araucaria araucana forests of the southern Andes. We investigated the effects of wildfires on the density and richness of a lizard community in these ecosystems, considering fire frequency and elapsed time since last fire. During the 2018/2019 southern summer season, we conducted 71 distance sampling transects to detect lizards in Araucaria forests of Chile in four fire “treatments”: (1) unburned control, (2) long-term recovery, (3) short-term recovery, and (4) burned twice. We detected 713 lizards from 7 species. We found that the density and richness of lizards are impacted by wildfire frequency and time of recovery, mediated by the modification of habitat structure. The lizard community varied from a dominant arboreal species (L. pictus) in unburned and long-recovered stands, to a combination of ground-dwelling species (L. lemniscatus and L. araucaniensis) in areas affected by two fires. Araucaria forests provided key habitat features to forest reptiles after fires, but the persistence of these old-growth forests and associated biodiversity may be threatened given the increase in fire frequency.
format	article
author	José Infante Fernando J. Novoa José Tomás Ibarra Don J. Melnick Kevin L. Griffin Cristián Bonacic
author_facet	José Infante Fernando J. Novoa José Tomás Ibarra Don J. Melnick Kevin L. Griffin Cristián Bonacic
author_sort	José Infante
title	Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes
title_short	Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes
title_full	Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes
title_fullStr	Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes
title_full_unstemmed	Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes
title_sort	altered fire regimes modify lizard communities in globally endangered araucaria forests of the southern andes
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4a2dd54ed89940ecb15fc53ace68202c
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Altered fire regimes modify lizard communities in globally endangered Araucaria forests of the southern Andes

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