Evaluating The Relative Importance Of Woody Versus Non-woody Plants For Alpha-diversity In A Semiarid Ecosystem In Brazil

dc.creatorQueiroz
dc.creatorRubens Teixeira; Moro
dc.creatorMarcelo Freire; Bezerra Loiola
dc.creatorMaria Iracema
dc.date2015
dc.date2016-06-07T13:32:49Z
dc.date2016-06-07T13:32:49Z
dc.date.accessioned2018-03-29T01:48:35Z
dc.date.available2018-03-29T01:48:35Z
dc.identifier
dc.identifierEvaluating The Relative Importance Of Woody Versus Non-woody Plants For Alpha-diversity In A Semiarid Ecosystem In Brazil. Soc Royal Botan Belgique, v. 148, p. 361-376 2015.
dc.identifier2032-3913
dc.identifierWOS:000366150800007
dc.identifier10.5091/plecevo.2015.1071
dc.identifierhttp://www.ingentaconnect.com/content/botbel/plecevo/2015/00000148/00000003/art00007
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/243548
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1307246
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionBackground and aims - Floristic surveys in tropical ecosystems are strongly biased towards collecting woody plants, overlooking the non-woody component even in semiarid ecosystems, where they can be predominant. This has led to an undervaluation of plant biodiversity in semiarid ecosystems because, as we show here, these areas have a high diversity of herbaceous species, sometimes much higher than that of woody plants. The semiarid Caatinga, in Northeastern Brazil, is one of such areas. Previously thought to be a species poor biome, these ecosystems are now understood as having a diverse flora, well adapted to dry conditions, including many therophytic species. Methods - We performed an extensive survey on plant diversity in a semiarid Caatinga site paying special attention to the non-woody component and compared it with the previously available data on woody plants for the same site. We used rarefied and extrapolated sampling curves to evaluate to what extent woody species are well sampled, based on the published data for trees and shrubs. We also constructed habit spectra to compare the relative importance of woody versus non-woody species in our site and across different Caatinga sites. Key results - Although the asymptotic richness for woody species is low when compared to other areas within Caatinga, the total alpha-diversity in the region is high if non-woody plants are considered in the study. We present habit and life form spectra to show that in this semiarid area most of the local biodiversity is composed by short-lived, usually under sampled, therophytes. Conclusion - We discuss how the focus on woody plants has underestimated the total alpha diversity of semiarid ecosystems. We call the attention of ecologists and phytosociologists collecting in semiarid ecosystems to focus not only on large trees and shrubs, but also to look down and collect the usually neglected, but very rich non-woody component.
dc.description148
dc.description3
dc.description
dc.description361
dc.description376
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [2013/15280-9]
dc.description
dc.description
dc.description
dc.languageen
dc.publisherSOC ROYAL BOTAN BELGIQUE
dc.publisher
dc.publisherMEISE
dc.relationPLANT ECOLOGY AND EVOLUTION
dc.rightsfechado
dc.sourceWOS
dc.subjectCaatinga
dc.subjectForests
dc.subjectClimate
dc.subjectExtrapolation
dc.subjectRarefaction
dc.subjectPernambuco
dc.subjectAreas
dc.titleEvaluating The Relative Importance Of Woody Versus Non-woody Plants For Alpha-diversity In A Semiarid Ecosystem In Brazil
dc.typeArtículos de revistas


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