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ID: 206527.0, MPI für Evolutionsbiologie / Tropical ecology
Central Amazonian floodplain forests: Tree adaptations in a pulsing system
Authors:Parolin, P.; De Simone, O.; Haase, K.; Waldhoff, D.; Rottenberger, S.; Kuhn, U.; Kesselmeier, J.; Kleiss, B.; Schmidt, W.; Piedade, M. T. F.; Junk, W. J.
Date of Publication (YYYY-MM-DD):2004-09
Title of Journal:The Botanical Review
Issue / Number:3
Start Page:357
End Page:380
Review Status:not specified
Audience:Not Specified
Abstract / Description:Amazonian floodplain forests are characterized by an annual flood pulse with changes of the water table that exceed 10 meters. Seedlings and adult trees are waterlogged or submerged for continuous periods lasting up to seven months per year. The monomodal flood pulse of the rivers causes drastic changes in the bioavailability of nutrients, oxygen levels, and concentrations of phytotoxins. The aquatic phase occurs during a period in which temperature and light conditions are optimal for plant growth and development, implying the need for adaptations. Not only do trees persist in a dormant state, they grow vigorously during most of the year, including the aquatic period. The regularity of flooding may have enhanced the evolution of specific traits, which partially are well known from floodplain trees in other tropical and in temperate regions. Different kinds of adaptations are found at the level of structural, physiological, and phenological traits. Combinations of adaptations regarding seed germination, seedling development, and traits of roots, shoots, and leaves result in a variety of growth strategies among trees. These lead to specific species distributions and zonations along the flooding gradient and within Amazonian floodplain systems (nutrient-rich white-water varzea and nutrient-poor black-water igapo)
External Publication Status:published
Document Type:Article
Communicated by:Pia Parolin
Affiliations:MPI für Limnologie/AG Tropenökologie
External Affiliations:Univ Kiel, Ctr Biol, Inst Bot D-24098 Kiel Germany; Univ Kiel, Bot Garden D-24098 Kiel Germany; Max Planck Inst Chem, Biogeochem Dept D-55020 Mainz Germany; Max Planck Inst Chem, Atmospher Chem Dept D-55020 Mainz Germany; Univ Oldenburg, Dept Biol D-26111 Oldenburg Germany; INPA Max Planck
BR-69011 Manaus Amazonas Brazil
Identifiers:ISSN:0006-8101 [ID-No:1]
LOCALID:2335/S 38218 [Listen-Nummer/S-Nummer]
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