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Journal Article

Vergleich von Flußuferkrautgesellschaften mit Wildkrautvegetation im tropischen Tiefland von Peru

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Citation

Seidenschwarz, F. (1986). Vergleich von Flußuferkrautgesellschaften mit Wildkrautvegetation im tropischen Tiefland von Peru. Amazoniana: Limnologia et Oecologia Regionalis Systematis Fluminis Amazonas, 10(1), 79-111.


Cite as: https://hdl.handle.net/21.11116/0000-0004-7799-A
Abstract
For the investigation area a short description is given of the vegetation on terra firme as well as
the one on the riversides of Rio Yuyapichis and Rio Pachitea.
In comparing vegetation samples of the lower course of the Yuyapichis river with agricultural
areas and open places around the houses and with other river types, differences in species combinations
are shown.
In comparing the samples of the lower course of Rio Yuyapichis with those of the surrounding
agricultural areas and open places around the houses, it is seen that the river banks have an own species
group with mostly Neotropic distribution. A group of plants restricted to the agricultural areas is only
weakly developed. These plants and those that occur on both stands have mostly pantropic distribution
or the Holarctis reaching distribution.
Comparison of vegetation samples of different river types: differences in pioneer vegetation
result from the flooding characteristics. This is proved by the abrupt changes in species combinations
when a river flows into a larger one.
The herb vegetation of Rio Pachitea is rich in therophytes with pantropic distribution and even
reaching the holarctis, while most of the plants of the upper course of Rio Yuyapichis have Neotropic
distribution.