Rainforest fragmentation kills big trees

Article Abstract:

Forest fragmentation in central Amazonia is having a disproportionately negative impact on large trees. There are several reasons why large trees are unusually vulnerable in fragmented rainforests.

Rain forest ecology

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Pervasive alteration of tree communities in undisturbed Amazonian forests

Article Abstract:

An attempt is made to analyze the highly nonrandom changes in dynamics and composition experienced by the forests in the central Amazonian landscape, being made on a network of 18 permanent plots. The observed compositional changes are found to have important impacts on the carbon storage, dynamics and biota of Amazonian forests.

Science & research, Land, mineral, wildlife conservation, Nature Parks and Other Similar Institutions, Forests & Parks, Forests and forestry, Forests

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Effects of forest fragmentation on recruitment patterns in Amazonian tree communities

Article Abstract:

Higher mean recruitment rates and more successional than old-growth species were found in forest fragments compared to continuous forest in central Amazonia. Mean recruitment rates were highly elevated in 1-ha fragments (224%) and moderated elevated in larger fragments of 10-100 ha (35-50%). The areas with high recruitment rates were biased toward successional families rather than old-growth families, although only about half of the trees in the study area were examined.

Natural history, Rain forest plants, Plant succession

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