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--- trabalhos:abstracts [2021/12/08 00:32]
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+++ trabalhos:abstracts [2021/12/08 00:44]
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@@ Linha 256: / Linha 256: @@
 larger CBH The sampling units were not grouped within the same condition. Anetium
 citrifolium was an indicator species of the interior of fragments in the pastures matrix.
+=== SALLES, Maysa da Costa Lima ===
+**Linear edge effects of different ages on the composition and structure of the shrub-tree community in the Atlantic Forest**
+**Abstract:** Forest fragmentation reduces the total area covered by the forest and exposes the plant
+community to edge effects, even if the edge is a linear opening. Beside, environmental
+factors associated to disturbances, such as fragmentation and topographical features, are
+some of the factors that determine community change. Hence, the aim of this study
+consisted in evaluating the effects of linear edges with different ages (30 and 200 years)
+of and the influence of environmental factors associated with them on the plant
+community of two forest layers of an Atlantic rainforest area located in the state of Rio
+de Janeiro, Brazil. Data concerning community structure and composition were
+compared between the different locations within the studied area, from which both slope
+and altitudinal interactions were evaluated. We suggested that the plant community of
+the Tinguá Reserve is under edge effects, but that these are less intense given that the
+impacts have been buffered by the formation, along the years, of a secondary vegetation
+layer, associated with an adjacent forest matrix and the absence of stochastic events.
+The older edge (200 years) had a lower richness and a different plant composition from
+the others locations. It suggests that the tree and shrub community may be under the
+influence of permanent damages from edge effects. The more recent edge (30 years)
+could be in a period of transition which the early successional trees, that reproduced
+immediately after the edge creation may reach the adult stage, near by the other tree
+species, and they constitute the upper stratum of the forest. The altitudinal and slope
+variables influence in some way the floristic composition, but other associated variables
+must be considered for a more precise evaluation.
 === PANNUTI, Márcia Ione da Rocha ===

Laboratório de Ecologia de Florestas Tropicais

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