8 documents found, page 1 of 1
The effects of climate change on the potential distribution of a frugivorous fi...
Oliveira, Ana Carolina Farias de; Spirlandelli, Felipe Pacheco; Seripieri, Vitor Henrique Mistro; Lino, André Luiz Ramos; Azevedo, João C.We assessed the effects of climate change on the geographic distribution of Piaractus brachypomus Cuvier (1818), a species of economic interest in the Amazon basin, using ecological niche models. We employed a set of five algorithms under the ensemble forecasting approach to predict the geographic distribution of the species in the present and in the future considering different carbon emission scenarios. The p...
The evolutionary history of Eugenia sect. Phyllocalyx (Myrtaceae) corroborates ...
Bünger, Mariana de Oliveira; Mazine, Fiorella Fernanda; Forest, Félix; Bueno, Marcelo Leandro; Stehmann, João Renato; Lucas, Eve J.Background and aims: Eugenia sect. Phyllocalyx Nied. includes 14 species endemic to the Neotropics, mostly distributed in the Atlantic coastal forests of Brazil. Here the first comprehensive phylogenetic study of this group is presented, and this phylogeny is used as the basis to evaluate the recent infrageneric classification in Eugenia sensu lato (s.l.) to test the history of the evolution of traits in the gr...
Floristic distributional patterns in a diverse ecotonal area in South America
Bueno, Marcelo Leandro; Pontara, Vanessa; Oliveira-Filho, Ary Teixeira de; Rezende, Vanessa LeiteThe Paraguayan territory and region, in the centre of South America, is a huge transition area with a succession of various vegetation types. However, this area has received little attention from researchers, with few works published on its flora and its delimitations. We aimed to identify the most important environmental driving forces and delimit floristic patterns in this region, since understanding the forc...
Patterns of tree species variation across southern South America are shaped by ...
Bueno, Marcelo Leandro; Rezende, Vanessa Leite; Eisenlohr, Pedro V.; Oliveira-Filho, Ary TeixeiraThe southern portion of South America, which encompasses high and exceptional lineage diversity, is well-suited to studies addressing the interaction between biogeography and local environmental conditions and how this historical process and environmental variables affect distribution patterns. We here assessed the role of environmental variables and spatially autocorrelated processes in driving tree species di...
MODELAGEM PREDITIVA DA ESPÉCIE Lychnophora pohlii SCH. BIP., NO ESTADO DE MINAS...
Costa, Thaís Ribeiro; de Moura, Cristiane Coelho; Machado, Evandro Luiz Mendonça; Bueno, Marcelo LeandroO objetivo deste trabalho foi determinar a distribuição potencial da espécie Lychnophora pohlli em Minas Gerais durante as flutuações climáticas no Quaternário, além de identificar a área de abrangência da espécie em Unidades de Conservação. O algoritmo Maxent foi selecionado para relacionar a ocorrência da espécie com variáveis bioclimáticas que refletem diferentes condições de temperatura, precipitação e sazo...
Evolutionary history of campo rupestre: an approach for conservation of woody p...
Pontara, Vanessa; Bueno, Marcelo Leandro; Rezende, Vanessa Leite; Oliveira-Filho, Ary Teixeira de; Gastauer, Markus; Meira-Neto, João Augusto AlvesThe campo rupestre sensu lato is among the most species-rich vegetation in the world, harbouring a high proportion of endemic species. We aimed to identify the processes that could generate a high level of phylogenetic diversity (PD) in campo rupestre for woody species and point out biodiversity hotspot areas which may provide additional information for conservation planning. We compiled a database of 2049 wood...
Flooding avoidance Triplaris gardneriana Wedd. (Polygonaceae): growth and morph...
Pontara, Vanessa; Bueno, Marcelo Leandro; Scremin-Dias, EdnaThe aim of this study was to analyze the effect of flooding in Triplaris gardneriana Wedd, cultivated in drained soil (control) and in flooded condition. The experiment was developed in a greenhouse, using plants with 90 days after the emergency. The response to treatment was evaluated at 0, 30, 60 and 90 days. Growth measurements were made, such as biomass allocation, relative growth rate (RGR). Adventitious r...
Fungic microflora of Panicum maximum and Styosanthes spp. commercial seed
Marchi, Carlos Eduardo; Fernandes, Celso Dornelas; Bueno, Marcelo Leandro; Batista, Margareth Vieira; Fabris, Larissa RodriguesThe sanitary quality of 26 lots commercial seeds of tropical forages, produced in different regions (2004-05 and 2005-06) was analyzed. The lots were composed of seeds of Panicum maximum ('Massai', 'Mombaça' e 'Tanzânia') and stylo ('Estilosantes Campo Grande' - ECG). Additionally, seeds of two lots of P. maximum for exportation were analyzed. The blotter test was used, at 20ºC under alternating light and darkn...