ABSTRACT:The aim of this study was to obtain information on the floristic composition and dispersal syndromes of the Ibura National Forest and carry out an analysis of similarity with other floristic surveys in the state of Sergipe. For this purpose, bimonthly sampling was carried out from September 2012 to December 2014. Total of 328 species were recorded, of which 324 were angiosperms belonging to 82 families, followed by three species of ferns and lycophytes and one species of Gymnosperm. Sixty-seven new species were recorded for the state of Sergipe. The richest families in species were Fabaceae, Myrtaceae, Rubiaceae, Asteraceae, Euphorbiaceae and Malvaceae. Regarding the dispersal syndromes, the dominance of zoochoric dispersal was observed, followed by autochoric and anemochoric dispersal. Among the tree and shrub species, the zoochoric syndrome was predominant (70%), while herbaceous species showed predominance of autochoric species (49%), and climber species have a more equitable proportion among the syndromes (38% autochoric, 32% anemocoric and 30% zoochoric). The Ibura National Forest presented relatively low levels of similarity with other sites located in the Atlantic Forest, possibly influenced by its isolation and distance between fragments. As we found in the Ibura National Forest, the dominance of zoochoric species was also observed in other studies conducted in the Atlantic Forest. The results of this study indicate that the Ibura National Forest is refuge to a high diversity of plant species of the Atlantic Forest, being a fairly heterogeneous area, which is still understudied.

Relatively little is known about folivory in bats, which is considered an occasional item in the diet of phyllostomids. Here we provide evidence on the consumption of leaves by Carollia perspicillata in northeastern Brazil, through records of its feeding behavior using camera traps, during the monitoring of the Gruta da Janela cave. The analysis of 12 months of monitoring revealed folivory in 7 months. Extra footage (1-min samples) allowed us to confirm C. perspicillata consuming the whole leaf (juices and fibers), which was never recorded in Neotropical bats. The record provides new insights into the diet of C. perspicillata, with an important new perspective on the feeding ecology of the species. We also highlight the use of camera traps as an important tool to monitor bat colonies in permanent shelters.

No abstract

No abstract

O objetivo deste estudo foi comparar a composição florística e a estrutura fitossociológica dos bosques de manguezais de áreas urbanas em Aracaju, estado de Sergipe, com diferentes tempos de regeneração e intensidades de impacto antrópico. Para o levantamento fitossociológico, foi adotado o método de parcelas múltiplas, sendo seis ou sete parcelas distribuídas equitativamente em dois transectos paralelos em quatro bosques de manguezais nos bairros 13 de julho, Porto Dantas, São Conrado e Mosqueiro. Destes, somente o bosque do Mosqueiro não apresentava tensores antrópicos contínuos como descarga de esgotos domésticos, retirada de madeira ou contribuição alóctone de sedimento. Para caracterizar a estrutura dos manguezais foram calculados os parâmetros densidade, frequência, dominância e o índice de valor de importância de cada espécie. Procedeu-se com a comparação estatística entre os bosques avaliados pelo teste de Kruskal-Wallis quanto a densidade geral e por espécie, diâmetro e altura geral dos indivíduos. Foram identificadas quatro espécies: Laguncularia racemosa, Avicennia schaueriana, Rhizophora mangle e Conocarpus erectus, que apresentaram diferenças de abundância e dominância entre os bosques analisados. De maneira geral, L. racemosa foi à espécie mais abundante e dominante nos bosques mais impactados, porém no bosque do Mosqueiro, R. mangle foi a mais dominante. Não houve diferenças significativas na densidade, diâmetro e altura geral dos indivíduos, porém a densidade de A. schaueriana e R. mangle diferiu entre os bosques. Em relação à altura, os bosques da 13 de julho e São Conrado apresentaram os maiores valores, ainda que possuíssem o menor tempo de regeneração pós-distúrbios.Phytosociology of mangroves in urban areas: a case study in Aracaju city, Sergipe stateA B S T R A C TThe aim of this paper was to compare the floristic composition and the phytosociological structure of the mangrove forests in urban areas with different levels of regeneration and intensities of anthropic impact. The study was performed in the municipality of Aracaju, Sergipe state, Brazil Northeast. For the phytosociological survey, the multiple plots method was adopted; so six or seven plots were equally distributed in two parallel transects in four mangrove forests in the neighborhoods 13 de Julho, Porto Dantas, São Conrado and Mosqueiro. Of these, only the Mosqueiro mangrove did not have continuous anthropic tensors such as discharge of domestic sewage, removal of wood or allochthonous contribution of sediment. To characterize the structure of the mangroves, the parameters density, frequency, dominance and the importance value index for each species were calculated. Statistical comparison was made among the mangroves evaluated using the Kruskal-Wallis test between general density and by species, diameter and general height of individuals. Four species were identified: Laguncularia racemosa, Avicennia schaueriana, Rhizophora mangle and Conocarpus erectus, which showed differences in abundance and dominance between the mangroves evaluated. In general, L. racemosa was the most abundant and dominant species in the most impacted mangrove, but in the Mosqueiro mangrove, R. mangle was more dominant. There were no significant differences in the density, diameter and general height of the individuals; however the density of A. schaueriana and R. mangle differed between mangroves. In relation to height, the forests of 13 de Julho and São Conrado presented the highest values, even though they had the shortest time of regeneration after disturbances.Keywords: ecotone, mangrove, forest structure, coastal zone, Brazil northeast.