A família Cactaceae na Bacia Hidrográfica do Rio Taquari, RS, Brasil

Bruxel, Juliane; Jasper, André

doi:10.1590/s0102-33062005000100008

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…The distribution of cacti in eastern Brazil is largely mirrored by that of Cereus hildmannianus Mill. (Cactoideae: Cereeae), a columnar cactus with natural range in south‐eastern and southern Brazil that encompasses mainly the seasonally dry tropical forests (SDTF) of the Misiones nucleus in the Paraná–Paraguay river basin, and the southern coastal plain (Bauer & Waechter, ; Bruxel & Jasper, ; Gonçalves & Waechter, ; Hunt, Taylor, & Charles, ; Taylor & Zappi, ).…”

Section: Introductionmentioning

confidence: 99%

The impact of early Quaternary climate change on the diversification and population dynamics of a South American cactus species

Silva

Antonelli

Lendel

et al. 2017

Journal of Biogeography

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Aim: Climatic oscillations have been suggested to promote speciation and changes in species distributions, mostly in connection with the Last Glacial Maximum (LGM).However, the LGM is just the most recent of the 20+ glacial-interglacial periods that characterise the Quaternary. Here, we investigate the role of climatic changes and geomorphological features in shaping the evolution, distribution and population dynamics of the South American cactus Cereus hildmannianus.Location: South-eastern South America. Methods:We built a large fossil-calibrated phylogeny for cacti (family Cactaceae), comprising 128 species distributed in all subfamilies, using a Bayesian relaxed clock.We used the results to derive a secondary calibration for a population-level phylogeny in C. hildmannianus. We amplified two plastid (trnQ-5 0 rps16 and psbJ-petA) and one nuclear marker (PhyC) for 24 populations. We estimated population dynamics, ancestral areas, and species distribution models to infer the clade's evolutionary history in time and space.Results: Our results show a major population divergence of C. hildmannianus at c. 2.60Ma, which is strikingly coincident with the transition of the Pliocene-Pleistocene and onset of Quaternary glaciations. This was followed by a complex phylogeographic scenario involving population expansions across ecologically diverse regions.Main conclusions: Contrary to the dominant research focus on the LGM, our study indicates a major impact of the first Quaternary glaciation on the distribution and population divergence of a South American plant species. Further intraspecific events seem related to successive climatic changes and geomorphology, including the development of the coastal plain and its peculiar diversity. We propose that the first Quaternary glaciation acted as a major evolutionary bottleneck, whereby many warm-adapted lineages succumbed, while those that survived could diversify and better cope with subsequent climatic oscillations.

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Section: Introductionmentioning

confidence: 99%

The impact of early Quaternary climate change on the diversification and population dynamics of a South American cactus species

Silva

Antonelli

Lendel

et al. 2017

Journal of Biogeography

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“…Rhipsalis teres is distributed in the states of Minas Gerais, Rio de Janeiro, São Paulo, Paraná, Santa Catarina e Rio Grande do Sul (Barthlott and Taylor, 1995). They are pendant plants, with cylindrical cladodes, green, up to 50 cm long (Bruxel and Jasper, 2005).…”

Section: Introductionmentioning

confidence: 99%

Physical characterization of Rhipsalis (Cactaceae) fruits and seeds germination in different temperatures and light regimes

et al. 2016

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The germination characteristics of the native cactus species are poorly known, being the temperature and the light the factors that the most interferes in that process. Thus, the objective of the present work was to characterize the fruits and evaluate the influence of the temperature and the light in the seed germination of Rhipsalis floccosa, Rhipsalis pilocarpa and Rhipsalis teres. The tested constant temperatures were 15, 20, 25, 30 and 35 °C and the alternate of 20-30 °C and 25-35 °C in a photoperiod of 10 hours, and with determination of the most appropriate temperature, the germination was tested in light absence. The germination percentage, the index of germination speed and medium time of germination were evaluated. For R. floccosa, the highest germination percentage was at 20 °C. For R. pilocarpa and R. teres, the highest germination percentages occurred in 15 °C and 20 °C. There was correlation to germination percentage between the three species, indicating that they had similar germination behavior. Total absence of germination was verified for the three species in condition of light absence. In conclusion, the temperature of 20 °C is the most suitable for the seed germination of R. floccosa. For the species R. pilocarpa and R. teres, the temperatures of 15 and 20 °C are the most suitable.

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“…However, the color of pericarpel is not described. The stamens have been described as white in Bruxel & Jasper (2005) and Zappi et al (2007) and yellowish in Bauer & Waechter (2006). Only Bauer & Waechter (2006) described the color of the style as greenish-white.…”

Section: E P I P H Y T E S C L a D O D E S A C R O C A U L O U S O Rmentioning

confidence: 99%

Cactaceae from Reserva Biológica do Alto da Serra de Paranapiacaba, Santo André, São Paulo State, Brazil

Mendes

Sebastiani

2012

Hoehnea

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-(Cactaceae from Reserva Biológica do Alto da Serra de Paranapiacaba, Santo André, São Paulo State, Brazil). A taxonomic treatment of Cactaceae species from Paranapiacaba Biological Reserve and surroundings is presented. An identification key and descriptions of 14 species, with notes regarding their ecology and conservation are included. The species identified were: Hatiora salicornioides (Haw.) Britton & Rose, Lepismium houlletianum (Lem.) Barthlott., Rhipsalis baccifera subsp.

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A família Cactaceae na Bacia Hidrográfica do Rio Taquari, RS, Brasil

Cited by 6 publications

References 5 publications

The impact of early Quaternary climate change on the diversification and population dynamics of a South American cactus species

The impact of early Quaternary climate change on the diversification and population dynamics of a South American cactus species

Physical characterization of Rhipsalis (Cactaceae) fruits and seeds germination in different temperatures and light regimes

Cactaceae from Reserva Biológica do Alto da Serra de Paranapiacaba, Santo André, São Paulo State, Brazil

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