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Zeitschriftenartikel

Responses of three Central Amazonian tree species to drought and flooding under controlled conditions.

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons56985

Waldhoff,  Danielle
Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons56754

Junk,  Wolfgang J.
Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Zitation

Waldhoff, D., Junk, W. J., & Furch, B. (1998). Responses of three Central Amazonian tree species to drought and flooding under controlled conditions. International Journal of Ecology and Environmental Sciences, 24, 237-252.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-E1D7-2
Zusammenfassung
The forest species in Central Amazonia are able to overcome the extreme stress of flooding and drought in the floodplains. We investigated the survival strategies of three tree species representative of the Amazonian floodplain forest, under controlled conditions in climatic chambers in the University of Kiel. We measured a) the anatomical and morphological characteristics such as adventitious roots, roots with a pneumatophore-like structure, lenticels, and stem dimorphism; and b) the growth and photosynthetic activity under different stress conditions. Two different patterns of adaptive responses to stress in the floodplain forests were observed: high-light-demanding plants grow quickly in height and shed their leaves during inundation, and the shade-tolearnt plants grow at a much slower rate and maintain their leaves during inundation. These leaves seem to perform photosynthesis underwater.