Tropical forests dynamics in response to a CO2-rich atmosphere

ROLLET, B.; HÖGERMANN, CH.; ROTH, I., Stratification of tropical forests as seen in leaf structure. Part 2. Tasks for vegetation science; 21. 246 S., 2 Kart., 99 Tab., 259 Fig., Kluwer Academic Publishers, Dordrecht, Boston, London, 1990. ISBN 0-7923-0397-0. Preis: Dfl. 275,—

Feddes Repertorium ◽

10.1002/fedr.4921050116 ◽

1994 ◽

Vol 105 (1-2) ◽

pp. 88-88

Author(s):

C. Schirarend

Keyword(s):

Tropical Forests ◽

Leaf Structure ◽

Vegetation Science

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Tropical Forests

Scientific American ◽

10.1038/scientificamerican03011921-267supp ◽

1921 ◽

Vol 3 (3supp) ◽

pp. 267-270

Author(s):

Vernon Kellogg ◽

R. M. Yerkes ◽

H. E. Howe

Keyword(s):

Tropical Forests

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Valuing Tropical Forests

10.1596/0-8213-3407-7 ◽

1995 ◽

Cited By ~ 13

Author(s):

Randall A. Kramer ◽

narendra Sharma ◽

Mohan Munasinghe

Keyword(s):

Tropical Forests

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FRUGIVORIA E DISPERSÃO DE SEMENTES POR PEIXES

Scientific Magazine UAKARI ◽

10.31420/uakari.v1i1.2 ◽

2008 ◽

Vol 1 (1) ◽

pp. 7-18

Author(s):

Luciane Lopes de Souza

Keyword(s):

Sustainable Development ◽

Seed Dispersal ◽

Tropical Forests ◽

Natural Regeneration ◽

Main Species ◽

Fishing Gears ◽

Solimões River

Biotic or abiotic processes of seed dispersal are important for the maintenance of the diversity, and for the natural regeneration in tropical forests. Ichthyochory is one of the fundamental mechanisms for seed dispersal in flooded environments, as the igapó forests. A study on the ichthyochory of the igapós was conducted at Amanã Sustainable Development Reserve, in the middle Solimões river, from June 2002 to September 2004. Monthly samples of frugivorous fish were taken, with the main fishing gears used locally. Guts of 1,688 fish caught were examined. The main species were Myloplus rubripinnis (29.21%), Hemiodus immaculatus (18.96%),Colossoma macropom um (16.23%) and Mylossoma duriventre (16.05%). The diet was made of vegetables (fruits, leave and flowers), and animals (arthropods). 53.02% of all fish caught ingested fruits. The total number of intact seeds in the stomachs and intestines were 8,069 and 5,763 respectively. About 61.9% of the Brycon melanopterus (matrinchão), 46.34% of the Brycon amazonicus (mamuri) and 30.22% of M . rubripinnis (parum ) analysed had intact seeds in their guts. Seeds of Nectandra amazonum and Genipa spruceana ingested proved to be more viable than those non-ingested by fish. The high rates of frugivory, the presence of intact seeds in the guts of fish and the greater viability of ingested seeds all suggest that these animals are important seed dispersors in the igapó forests of Amanã Reserve.

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