Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas

Comprehensive biodiversity inventories are expensive and time-consuming to achieve, especially for groups of megadiverse organisms. One approach to resolve such situations is to utilize biological substitutes, referred to as surrogates. A surrogate should provide meaningful information at a lower co...

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Autores principales:	Elmo B.A. Koch, Ivan Cardoso Nascimento, Jonathan D. Majer, Jacques H.C. Delabie
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Biodiversity Taxonomic sufficiency Formicidae Atlantic rainforest Functional groups Economic assessment Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/89ef6fe014d644f898a7ea60b360b51c
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spelling	oai:doaj.org-article:89ef6fe014d644f898a7ea60b360b51c2021-12-01T04:42:02ZSeeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas1470-160X10.1016/j.ecolind.2020.107305https://doaj.org/article/89ef6fe014d644f898a7ea60b360b51c2021-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312474https://doaj.org/toc/1470-160XComprehensive biodiversity inventories are expensive and time-consuming to achieve, especially for groups of megadiverse organisms. One approach to resolve such situations is to utilize biological substitutes, referred to as surrogates. A surrogate should provide meaningful information at a lower cost and/or effort than the original level of resolution. Studies have shown that species richness is often not the best or most appropriate component or predictor of biodiversity. Functional diversity can be used as a measurement of the ecological differentiation between habitats or between biological functions. We evaluated the use of several taxonomic metrics as potential surrogates for leaf-litter ant assemblages distributed in 65 Atlantic rainforest sites. Our goal was to find reliable and economic substitutes for both taxonomic and functional leaf-litter ant diversity and composition. We tested four potential surrogate approaches for taxonomic metrics and three for functional group metrics. Additionally, we also evaluated the time and costs involved. We used a large leaf-litter ant database that comprises 364 ant species, respectively classified into 13 or 26 ant functional groups based on either a general and specific resolution. Subfamily was found to be an unacceptable surrogate for both taxonomic and functional group metrics. Mixed-level and indicator taxa metrics were rated as ‘excellent’ taxonomic surrogates. Mixed-level and genus metrics were rated as ‘excellent’ or ‘acceptable’ functional group surrogates when considering the most general functional resolution, while mixed-level and genus were considered as ‘excellent’ surrogates when considering the more specific resolution. The monetary and time costs to identify ants to genus level were lower than those using indicator taxa and mixed-level metrics. The use of a certain higher taxon functional and taxonomic surrogates allows a reduction of survey and analysis costs while still enabling the analysis of biological diversity from the taxonomic and functional point of view.Elmo B.A. KochIvan Cardoso NascimentoJonathan D. MajerJacques H.C. DelabieElsevierarticleBiodiversityTaxonomic sufficiencyFormicidaeAtlantic rainforestFunctional groupsEconomic assessmentEcologyQH540-549.5ENEcological Indicators, Vol 122, Iss , Pp 107305- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biodiversity Taxonomic sufficiency Formicidae Atlantic rainforest Functional groups Economic assessment Ecology QH540-549.5
spellingShingle	Biodiversity Taxonomic sufficiency Formicidae Atlantic rainforest Functional groups Economic assessment Ecology QH540-549.5 Elmo B.A. Koch Ivan Cardoso Nascimento Jonathan D. Majer Jacques H.C. Delabie Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
description	Comprehensive biodiversity inventories are expensive and time-consuming to achieve, especially for groups of megadiverse organisms. One approach to resolve such situations is to utilize biological substitutes, referred to as surrogates. A surrogate should provide meaningful information at a lower cost and/or effort than the original level of resolution. Studies have shown that species richness is often not the best or most appropriate component or predictor of biodiversity. Functional diversity can be used as a measurement of the ecological differentiation between habitats or between biological functions. We evaluated the use of several taxonomic metrics as potential surrogates for leaf-litter ant assemblages distributed in 65 Atlantic rainforest sites. Our goal was to find reliable and economic substitutes for both taxonomic and functional leaf-litter ant diversity and composition. We tested four potential surrogate approaches for taxonomic metrics and three for functional group metrics. Additionally, we also evaluated the time and costs involved. We used a large leaf-litter ant database that comprises 364 ant species, respectively classified into 13 or 26 ant functional groups based on either a general and specific resolution. Subfamily was found to be an unacceptable surrogate for both taxonomic and functional group metrics. Mixed-level and indicator taxa metrics were rated as ‘excellent’ taxonomic surrogates. Mixed-level and genus metrics were rated as ‘excellent’ or ‘acceptable’ functional group surrogates when considering the most general functional resolution, while mixed-level and genus were considered as ‘excellent’ surrogates when considering the more specific resolution. The monetary and time costs to identify ants to genus level were lower than those using indicator taxa and mixed-level metrics. The use of a certain higher taxon functional and taxonomic surrogates allows a reduction of survey and analysis costs while still enabling the analysis of biological diversity from the taxonomic and functional point of view.
format	article
author	Elmo B.A. Koch Ivan Cardoso Nascimento Jonathan D. Majer Jacques H.C. Delabie
author_facet	Elmo B.A. Koch Ivan Cardoso Nascimento Jonathan D. Majer Jacques H.C. Delabie
author_sort	Elmo B.A. Koch
title	Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
title_short	Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
title_full	Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
title_fullStr	Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
title_full_unstemmed	Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
title_sort	seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/89ef6fe014d644f898a7ea60b360b51c
work_keys_str_mv	AT elmobakoch seekingsurrogatesfortaxonomicandfunctionalevaluationsofleaflitterantfaunas AT ivancardosonascimento seekingsurrogatesfortaxonomicandfunctionalevaluationsofleaflitterantfaunas AT jonathandmajer seekingsurrogatesfortaxonomicandfunctionalevaluationsofleaflitterantfaunas AT jacqueshcdelabie seekingsurrogatesfortaxonomicandfunctionalevaluationsofleaflitterantfaunas
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Seeking surrogates for taxonomic and functional evaluations of leaf-litter ant faunas

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