Effects of lightgaps and topography on Amazon secondary forest: Changes in species richness and community composition
| Autor: | Tony Vizcarra Bentos, Henrique E. M. Nascimento, Marisângela dos Anjos Vizcarra, G. Bruce Williamson |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
geography Plateau geography.geographical_feature_category Vismia Secondary succession Land use biology Amazon rainforest Ecology Forestry Management Monitoring Policy and Law biology.organism_classification 010603 evolutionary biology 01 natural sciences Secondary forest Species richness Restoration ecology 010606 plant biology & botany Nature and Landscape Conservation |
| Zdroj: | Forest Ecology and Management. 396:124-131 |
| ISSN: | 0378-1127 |
| DOI: | 10.1016/j.foreco.2017.04.018 |
| Popis: | Secondary succession on abandoned pastures in the Amazon is characterized by low diversity and slow turnover of plant species in the early decades. Here we present the results of a 6-year experiment in order to evaluate the effects of artificially created forest gaps established in 20-year old Vismia-dominated secondary forests in Central Amazonia. Plant diversity and composition of trees ≤5 cm DBH were assessed in 21,100-m2 lightgaps evenly distributed in three topographic positions (plateau, slope, and bottomland). These empirical results were compared with four uncut, control plots nearby the experimental plots. There were no topographic effects on plant density and species richness for either the two size classes analyzed (seedlings |
| Databáze: | OpenAIRE |
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