High plant taxonomic beta diversity and functional and phylogenetic convergence between two Neotropical inselbergs

Paula, Luiza F. A. de; Colmenares-Trejos, Sara L.; Negreiros, Daniel; Rosado, Bruno H. P.; Mattos, Eduardo Arcoverde de; Bello, Francesco de; Porembski, Stefan; Silveira, Fernando A. O.

doi:10.1080/17550874.2019.1673846

Cited by 18 publications

(12 citation statements)

References 71 publications

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“…Although the phytophysiognomies and ecological conditions seem similar between limestone outcrops, the study of Ferreira (2020) in the LSK pointed out a low similarity between two nearby massifs. This result indicates a high heterogeneity for limestone outcrops, as observed for other types of vegetation associated with rocky outcrops, such as the campos rupestres (Rapini et al 2008) and inselbergs (de Paula et al 2020), and may explain the restricted distribution of the new species. Despite this heterogeneity, other limestone outcrops in the LSK have similar vegetation with a predominance of Dyckia luxor, so that H. karstica is likely to occur at least in some of these.…”

Section: Diversity Of Orchidaceae In Brazilian Karstsmentioning

confidence: 55%

A new species of Habenaria (Orchidaceae, Asparagales) and a checklist of Orchidaceae from limestone outcrops of Brazil

Batista

Ferreira

Alves

et al. 2022

EJT

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Habenaria karstica J.A.N.Bat. sp. nov., a new species from limestone outcrops (i.e., karst) in the State of Minas Gerais, Brazil, is described. The new species is ecologically very distinct since it is the only Neotropical species of the genus that grows on limestone outcrops under full sun, associated with mat-forming saxicolous plants. It is morphologically similar to species of the Habenaria repens complex, and separation is only possible through a combination of morphological characters. Bayesian and parsimony phylogenetic analyses based on nuclear (rDNA ITS, ETS) and plastid (matK-trnK, rps16-trnK) DNA markers revealed that H. karstica belongs to H. sect. Spathaceae. The new species, however, differs in floral morphology from the other species in this clade. A survey of the literature and public plants datasets revealed 122 species and 58 genera of Orchidaceae in karsts of Brazil. Although small compared to the family’s diversity in the country, Orchidaceae is among the families with the highest number of species in some karst localities. Our results indicate that approximately 97% of Orchidaceae found in karsts of Brazil is not limited to limestone outcrops areas, and that species composition of each locality is primarily determined by the regional flora and the biome in which it is located.

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Section: Diversity Of Orchidaceae In Brazilian Karstsmentioning

confidence: 55%

A new species of Habenaria (Orchidaceae, Asparagales) and a checklist of Orchidaceae from limestone outcrops of Brazil

Batista

Ferreira

Alves

et al. 2022

EJT

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“…Likewise, the effect of environmental and biotic filtering can be decoupled between alpha and beta diversities. For example, it is possible that a study region exhibits a high beta TD (different species identities) but low beta functional or phylogenetic diversities (similar functions and lineages), being an indication of strong environmental filtering (de Bello et al, 2009; de Paula et al, 2020). Although considering TD, FD and PD, at both alpha and beta levels, is key to disentangle the effect of multiple filters at different scales, few studies have used such a multifaceted approach to understand the community assembly of plants (but see, Dainese et al, 2015; de Paula et al, 2020; Swenson et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Environment and space drive the community assembly of Atlantic European grasslands: Insights from multiple facets

Mugnai

Trindade

Thierry

et al. 2022

Journal of Biogeography

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“…Rupicolous vegetation on inselbergs is generally distributed in isolated patches of different sizes, shapes and limited on all sides by the rocky surface (Meirelles et al 1999;Ribeiro et al 2007;Conceição et al 2007aConceição et al , 2007bde Paula et al 2015de Paula et al , 2019 and these patches contain aggregates of a few to many species. The increase in species richness in the patches over time can be attributed to an increase in area as emphasized the Island Biogeography Theory (MacArthur & Wilson 1967).…”

Section: Introductionmentioning

confidence: 99%

“…The increase in species richness in the patches over time can be attributed to an increase in area as emphasized the Island Biogeography Theory (MacArthur & Wilson 1967). Large patches may have greater resource availability, mainly due to deeper soils (Houle 1990;Meirelles et al 1999;Michelangelli 2000;Gram et al 2004;de Paula et al 2015de Paula et al , 2019Villa et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Floristic composition, structure and species-area relationships on a neotropical inselberg in southeastern Brazil

et al. 2021

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The inselberg vegetation, in general, occurs in patches that vary in size, shape, number of plant species and are surrounded by a bare rock. The present study evaluated the species composition, structural analysis, and species-area relationships of vegetation patches on a neotropical inselberg in Rio de Janeiro state, southeastern Brazil. A total of 69 vascular plant species, from 31 families, were sampled in 84 vegetation patches varying in area from 0.02 to 500 m2, totaling 0.33 ha. Fabaceae and Cactaceae were the most representative families. Vellozia plicata and Selaginella sellowii presented the highest relative frequencies, relative dominances and importance values and were the most successful in the colonization of the studied rocky outcrop. A linear regression showed a positive correlation between patch size and species richness. Phanerophytes were the predominant life-form, with small patches being less rich in species and dominated by Selaginella mats. Our results suggest that the vegetation patches on the “Morro do Itaoca” inselberg currently represent a refuge against fire and other anthropogenic disturbances for many typical species of the surrounding matrix. In addition, the locality is home to endemic and endangered species, which reinforces its importance for conservation actions.

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High plant taxonomic beta diversity and functional and phylogenetic convergence between two Neotropical inselbergs

Cited by 18 publications

References 71 publications

A new species of Habenaria (Orchidaceae, Asparagales) and a checklist of Orchidaceae from limestone outcrops of Brazil

A new species of Habenaria (Orchidaceae, Asparagales) and a checklist of Orchidaceae from limestone outcrops of Brazil

Environment and space drive the community assembly of Atlantic European grasslands: Insights from multiple facets

Floristic composition, structure and species-area relationships on a neotropical inselberg in southeastern Brazil

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