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On the dynamics,floristic subdivision and geographical distribution of várzea forests in Central Amazonia
Authors:Martin Worbes  Hans Klinge  Juan D Revilla  Christopher Martius
Abstract:Abstract. Within different stands of the white-water inundation forest (várzea forest) in the Central Amazon region, composition, abundance, frequency and basal area of tree species were recorded. Determinations of age and radial growth rates were conducted using dendrochronological methods. Results show significant differences in age, history and species composition between stands as well as different growth strategies among dominant species. Assignment of tree species to growth strategies by means of anatomical and morphological features together with quantitative aspects of vegetational analysis permit the further differentiation of successional stages of várzea forests. General features of successional stages were quantitatively described and compared with forest types from outside the várzea. Many tree species of the várzea forests are widespread in South America, and not limited to floodplains. Their occurrence on sites with distinct dry seasons suggests that they are not specifically adapted to flooding but are tolerant to seasonality in general.
Keywords:Age  Dendrochronology  Floodplain forest  Inundation area  Succession  Tropical tree  Tolerance  See App  1  Voucher specimens are kept in the herbarium of the Instituto Nacional de Pesquisas da Amazô  nia (INPA)  Manaus  Brazil
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