Integrating landscape disturbance and indicator species in conservation studies.

Successful conservation plans are conditioned by our ability to detect anthropogenic change in space and time and various statistical analyses have been developed to handle this critical issue. The main objective of this paper is to illustrate a new approach for spatial analysis in conservation biol...

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Autores principales:	Pedro Cardoso, François Rigal, Simone Fattorini, Sofia Terzopoulou, Paulo A V Borges
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b2005133c11040598e3654e4102c003e
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spelling	oai:doaj.org-article:b2005133c11040598e3654e4102c003e2021-11-18T07:47:11ZIntegrating landscape disturbance and indicator species in conservation studies.1932-620310.1371/journal.pone.0063294https://doaj.org/article/b2005133c11040598e3654e4102c003e2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23650560/?tool=EBIhttps://doaj.org/toc/1932-6203Successful conservation plans are conditioned by our ability to detect anthropogenic change in space and time and various statistical analyses have been developed to handle this critical issue. The main objective of this paper is to illustrate a new approach for spatial analysis in conservation biology. Here, we propose a two-step protocol. First, we introduce a new disturbance metric which provides a continuous measure of disturbance for any focal communities on the basis of the surrounding landscape matrix. Second, we use this new gradient to estimate species and community disturbance thresholds by implementing a recently developed method called Threshold Indicator Taxa ANalysis (TITAN). TITAN detects changes in species distributions along environmental gradients using indicators species analysis and assesses synchrony among species change points as evidence for community thresholds. We demonstrate our method with soil arthropod assemblages along a disturbance gradient in Terceira Island (Azores, Portugal). We show that our new disturbance metric realistically reflects disturbance patterns, especially in buffer zones (ecotones) between land use categories. By estimating species disturbance thresholds with TITAN along the disturbance gradient in Terceira, we show that species significantly associated with low disturbance differ from those associated with high disturbance in their biogeographical origin (endemics, non-endemic natives and exotics) and taxonomy (order). Finally, we suggest that mapping the disturbance community thresholds may reveal areas of primary interest for conservation, since these may host indigenous species sensitive to high disturbance levels. This new framework may be useful when: (1) both local and regional processes are to be reflected on single disturbance measures; (2) these are better quantified in a continuous gradient; (3) mapping disturbance of large regions using fine scales is necessary; (4) indicator species for disturbance are searched for and; (5) community thresholds are useful to understand the global dynamics of habitats.Pedro CardosoFrançois RigalSimone FattoriniSofia TerzopoulouPaulo A V BorgesPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 5, p e63294 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pedro Cardoso François Rigal Simone Fattorini Sofia Terzopoulou Paulo A V Borges Integrating landscape disturbance and indicator species in conservation studies.
description	Successful conservation plans are conditioned by our ability to detect anthropogenic change in space and time and various statistical analyses have been developed to handle this critical issue. The main objective of this paper is to illustrate a new approach for spatial analysis in conservation biology. Here, we propose a two-step protocol. First, we introduce a new disturbance metric which provides a continuous measure of disturbance for any focal communities on the basis of the surrounding landscape matrix. Second, we use this new gradient to estimate species and community disturbance thresholds by implementing a recently developed method called Threshold Indicator Taxa ANalysis (TITAN). TITAN detects changes in species distributions along environmental gradients using indicators species analysis and assesses synchrony among species change points as evidence for community thresholds. We demonstrate our method with soil arthropod assemblages along a disturbance gradient in Terceira Island (Azores, Portugal). We show that our new disturbance metric realistically reflects disturbance patterns, especially in buffer zones (ecotones) between land use categories. By estimating species disturbance thresholds with TITAN along the disturbance gradient in Terceira, we show that species significantly associated with low disturbance differ from those associated with high disturbance in their biogeographical origin (endemics, non-endemic natives and exotics) and taxonomy (order). Finally, we suggest that mapping the disturbance community thresholds may reveal areas of primary interest for conservation, since these may host indigenous species sensitive to high disturbance levels. This new framework may be useful when: (1) both local and regional processes are to be reflected on single disturbance measures; (2) these are better quantified in a continuous gradient; (3) mapping disturbance of large regions using fine scales is necessary; (4) indicator species for disturbance are searched for and; (5) community thresholds are useful to understand the global dynamics of habitats.
format	article
author	Pedro Cardoso François Rigal Simone Fattorini Sofia Terzopoulou Paulo A V Borges
author_facet	Pedro Cardoso François Rigal Simone Fattorini Sofia Terzopoulou Paulo A V Borges
author_sort	Pedro Cardoso
title	Integrating landscape disturbance and indicator species in conservation studies.
title_short	Integrating landscape disturbance and indicator species in conservation studies.
title_full	Integrating landscape disturbance and indicator species in conservation studies.
title_fullStr	Integrating landscape disturbance and indicator species in conservation studies.
title_full_unstemmed	Integrating landscape disturbance and indicator species in conservation studies.
title_sort	integrating landscape disturbance and indicator species in conservation studies.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/b2005133c11040598e3654e4102c003e
work_keys_str_mv	AT pedrocardoso integratinglandscapedisturbanceandindicatorspeciesinconservationstudies AT francoisrigal integratinglandscapedisturbanceandindicatorspeciesinconservationstudies AT simonefattorini integratinglandscapedisturbanceandindicatorspeciesinconservationstudies AT sofiaterzopoulou integratinglandscapedisturbanceandindicatorspeciesinconservationstudies AT pauloavborges integratinglandscapedisturbanceandindicatorspeciesinconservationstudies
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Integrating landscape disturbance and indicator species in conservation studies.

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