Floristic patterns of epiphytes in the Brazilian Atlantic Forest, a biodiversity hotspot

Leitman, Paula; Amorim, André M.; Sansevero, Jerônimo Boelsums Barreto; Forzza, Rafaela Campostrini

doi:10.1111/boj.12342

Cited by 34 publications

(19 citation statements)

References 64 publications

(61 reference statements)

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“…A spatially structured gradient was also found in studies conducted in rocky outcrop in French Guiana and in south-eastern rock grasslands Brazil (Silva Mota et al 2018, Sarthou et al 2017. Similarly, floristic patterns of Bromeliaceae epiphytes in the Brazilian Atlantic Forest were mainly associated with space (Leitman et al 2015). This result may also be related to the dispersion capacity of some species of bromeliads, or suggest the absence of some pollinators (bats, hummingbirds, bees and butterflies), indicating that environmental constrains positively correlate with spatial distances affect the floristic differences in this spatial scale (Brown & Lomolino 2001).…”

Section: Discussionsupporting

confidence: 64%

Beta diversity patterns of Bromeliaceae growing on rocky cliffs within the Atlantic Forest in southern Brazil

Melo

Waechter

2020

Biota Neotrop.

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In recent years there has been increasing attention in patterns of β-diversity and mechanisms related to variations in species composition. In this study, we evaluated beta diversity patterns of bromeliads growing on cliffs immersed in Atlantic Forest. We hypothesized that the species composition varies according to the spatial scale, inferring that there is a replacement of species influenced mainly by environmental factors. The study was carried out on sandstone cliffs included in contiguous but distinct vegetation formations: Evergreen and Seasonal forests. Twenty-four vertical rocky outcrops were sampled. The spatial variation in species composition was evaluated by two β-diversity components, turnover and nestedness. Multivariate analysis and variation partitioning were performed to distinguish niche and stochastic processes. We recorded 26 bromeliad species and a significantly higher contribution of turnover explaining beta diversity. Environmental factors affect β-diversity patterns of Bromeliaceae. However, individually, the environmental predictors do not explain the data variation. Environmental variations spatially structured, and spatial variables determinate the dissimilarity in the composition of bromeliads on cliffs. Thus, our results revealed that both environmental and spatial effects can act together to define the floristic composition of rock-dwelling bromeliad communities.

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Section: Discussionsupporting

confidence: 64%

Beta diversity patterns of Bromeliaceae growing on rocky cliffs within the Atlantic Forest in southern Brazil

Melo

Waechter

2020

Biota Neotrop.

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“…The set of variables of this study were also showed to be relevant in studies dealing with biogeography and floristic relationships of angiosperm epiphytes in Atlantic Forest (Menini Neto et al 2009;Leitman et al 2015).…”

Section: Multivariate Analysesmentioning

confidence: 83%

Vascular epiphytic flora of a high montane environment of Brazilian Atlantic Forest: composition and floristic relationships with other ombrophilous forests

Furtado

Neto

2016

Acta Bot. Bras.

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Only a few studies regarding vascular epiphytes have been conducted in mixed ombrophilous forests (MOF) in Serra da Mantiqueira, a mountainous environment in the Brazilian Atlantic Forest, where the relationships of epiphytic fl ora with other physiognomies are unknown. Th is study aimed to survey the epiphytes of a MOF remnant located in Serra da Mantiqueira, and to analyze the fl oristic relationships with ombrophilous forests of the Southern and Southeastern regions of Brazil. Th e checklist was compared with 51 other areas composed of ombrophilous forests and/or ecotones with other physiognomies using UPGMA (with Sørensen index), and canonical correspondence analysis (CCA). We recorded 138 species, and Orchidaceae and Polypodiaceae were the richest families (51 and 23 species, respectively). Th e UPGMA showed the importance of physiognomy and elevation in the fl oristic relationships, and CCA reinforced the infl uence of elevation, in addition to the shortest distance to the ocean and minimum annual temperature; however, in this analysis, the physiognomies showed little infl uence on the relationships. Th e epiphytic fl ora of MOF of Southern and Southeastern regions of Brazil has diff erent relationships compared with the data available for shrubs and trees, suggesting a greater importance of phorophytic species than geographical distance and, to some extent, environmental variables.

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“…The diversity of vascular epiphytes are known to vary at both local (ter Steege & Cornelissen 1989, Arévalo & Betancur 2004, Kersten et al 2009, Joanitti 2013) and on a large scale (Gentry & Dodson 1987, Nieder et al 1999, Breier 2005, Leitman et al 2015. Their distribution might follow ecological gradients, both horizontally -among different vegetation types and phorophytes (Benavides et al 2011) -and vertically, exhibiting variations on the same phorophyte, from the floor to the canopy (ter Steege & Cornelissen 1989, Nieder et al 1999, Rogalski et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Epiphyte-phorophyte relationships: assessing the differences between Seasonal Semideciduous and Swamp Forests in Southeastern Brazil1

Marcusso

Kamimura

Monteiro

2019

Hoehnea

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Vascular epiphytes are responsible for a considerable portion of tropical biodiversity; however, the variation of epiphytes-phorophytes relationships in different vegetation types are still poorly understood. In this study, we aimed to assess the presence, abundance, vertical distribution, and life cycle (holoepiphyte and hemiepiphyte) of vascular epiphytes in two vegetation types [Seasonal Semideciduous Forest (- SSF), and Swamp Forest (- SF)] in order to determine any correlation with phorophyte size (diameter and height) and the specificity of phorophyte species to the epiphytic colonization. There was a higher number of phorophytes in SF; however, epiphytes density did not differ between the vegetation types. The recorded vertical distribution also showed different patterns: in the SSF, most epiphytes were found in the canopy, while in the SF they occurred mainly on the trunks of the trees. The abundance of epiphytes was positively correlated with the phorophyte size in the two vegetation types. In the SSF, colonization of phorophytes by epiphytes appeared to be less species-specific than in the SF, where trees density is likely to be a more significant factor to epiphytic colonization. The results showed the importance of the forest heterogeneity in the conservation and maintenance of vascular epiphytes assemblage, demonstrated by differences in the abundance and distribution of the epiphytes, even in contiguous forests.

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Floristic patterns of epiphytes in the Brazilian Atlantic Forest, a biodiversity hotspot

Cited by 34 publications

References 64 publications

Beta diversity patterns of Bromeliaceae growing on rocky cliffs within the Atlantic Forest in southern Brazil

Beta diversity patterns of Bromeliaceae growing on rocky cliffs within the Atlantic Forest in southern Brazil

Vascular epiphytic flora of a high montane environment of Brazilian Atlantic Forest: composition and floristic relationships with other ombrophilous forests

Epiphyte-phorophyte relationships: assessing the differences between Seasonal Semideciduous and Swamp Forests in Southeastern Brazil1

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