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Using a space-for-time approach to select the best biodiversity-based indicators to assess the effects of aridity on Mediterranean drylands

2020-06Artigo científico Acesso aberto
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dc.contributor.authorFrasconi Wendt, Clara
dc.contributor.authorNunes, Alice
dc.contributor.authorVerble, Robin
dc.contributor.authorSantini, Giacomo
dc.contributor.authorBoieiro, Mário
dc.contributor.authorBranquinho, Cristina
dc.date.accessioned2020-12-15T12:57:40Z
dc.date.available2022-06-04T00:30:23Z
dc.date.issued2020-06
dc.description.abstractMediterranean drylands are particularly vulnerable to predicted increases in aridity which are expected to have negative consequences for biodiversity. To understand the effects of climate change on ecosystems, a framework for the selection of indicators based on the essential biodiversity variables (EBV) was proposed. In this framework, a functional approach has been suggested because functional traits have shown to be sensitive to small-scale environmental changes. Additionally, functional traits are also associated with ecosystem-limiting processes. In this context, we used ants as ecological indicators, as they are functionally important and respond in a measurable way to environmental changes. We identify which biodiversity-based indicators (e.g., taxonomic, single-trait and multi-trait indices) help track changes in Mediterranean drylands; for this, we used a space-for-time substitution climatic gradient in the western Mediterranean. Ants were sampled along an aridity gradient and identified to species level. Four continuous and seven categorical traits were measured or retrieved from literature. Continuous traits included Weber’s length, which is indicative for body length, head length, eye length and femur length; categorical traits were diet, behavioral dominance, daily activity, nest preference, mound presence, worker polymorphism and foraging strategy. We calculated taxonomic, functional structure and single- and multi-trait functional diversity indices and correlated them with aridity. We found that ant taxonomic and multi-trait functional diversity were maintained along the aridity gradient. Despite maintenance of species and functional diversity along the gradient, ant functional structure responded to aridity with increases in mean trait values of Weber’s length, eye length and femur length in the drier part of the gradient. Under wetter conditions, we found the highest proportion of ants with a seed-based diet, reflecting a potential increase in resource quantity. We observed a change in foraging strategy from group to individual as aridity increased. In conclusion, with a space-for-time substitution climatic gradient, this study shows the potential role of aridity as an environmental driver of ant trait values. These results highlight the value of ants and functional traits as indicators to track the effects of climate change on ecosystems. Finally, this study represents a starting point to monitor important species traits in the context of EBV and to use them as indicators to track the effects of aridity on Mediterranean dryland ecosystems.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia, within the fellowships PD/BD/114364/2016 and SFRH/BPD/86215/2012pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationC.F.Wendt; A.Nunes; R.Verble; G.Santini; M.Boieiro; C.Branquinho. 2020. Using a space-for-time approach to select the best biodiversity-based indicators to assess the effects of aridity on Mediterranean drylands, Ecological Indicators, https://doi.org/10.1016/j.ecolind.2020.106250pt_PT
dc.identifier.doi10.1016/j.ecolind.2020.106250pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/45343
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationFCT project FCT-PTDC/AAG-GLO/0045/2014pt_PT
dc.relationFCT grant PD/BD/114364/2016pt_PT
dc.relationFCT grant SFRH/BPD/86215/2012pt_PT
dc.relation.publisherversionhttps://www.elsevier.compt_PT
dc.subjectAnt functional traitspt_PT
dc.subjectAridity gradientpt_PT
dc.subjectEcological indicatorspt_PT
dc.subjectCommunity-weighted-meanpt_PT
dc.subjectRao’s quadratic entropypt_PT
dc.subjectMulti-traitpt_PT
dc.subjectMediterranean drylandspt_PT
dc.subjectClimate changept_PT
dc.titleUsing a space-for-time approach to select the best biodiversity-based indicators to assess the effects of aridity on Mediterranean drylandspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage106250pt_PT
oaire.citation.titleEcological Indicatorspt_PT
oaire.citation.volume113pt_PT
person.familyNameRodrigues Nunes
person.familyNameCanelas Boieiro
person.familyNameBranquinho
person.givenNameAlice Maria
person.givenNameMário Rui
person.givenNameCristina
person.identifierB-4817-2014
person.identifierB-3670-2008
person.identifier.ciencia-id1513-954F-C3E8
person.identifier.ciencia-idCB12-D073-9C37
person.identifier.ciencia-id801A-B46A-71BA
person.identifier.orcid0000-0002-6900-3838
person.identifier.orcid0000-0002-9087-091X
person.identifier.orcid0000-0001-8294-7924
person.identifier.scopus-author-id36651604800
person.identifier.scopus-author-id6603447018
rcaap.embargofctO tipo de licença envolvido com a editora Elsevier para esta revista, não envolvendo pagamento (APC), apenas permite acesso em repositório público do formato 'aceite' (i.e não editado e paginado pela editora) após período de embargo de 24 meses após a data da sua publicação final.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9d9a277d-78fa-4c60-b6de-78db46093015
relation.isAuthorOfPublication857b66fc-838e-4ac6-a9b6-47634985574e
relation.isAuthorOfPublication1de08ca7-36bd-4e52-898e-0a48564999e1
relation.isAuthorOfPublication.latestForDiscovery1de08ca7-36bd-4e52-898e-0a48564999e1

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