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          Institute: MPI für Evolutionsbiologie     Collection: Tropical ecology     Display Documents

ID: 288874.0, MPI für Evolutionsbiologie / Tropical ecology
Phenology, fruit production and seed dispersal of
Astrocaryum jauari (Arecaceae) in Amazonian black water floodplains
Authors:Piedade, Maria Teresa F.; Parolin, Pia; Junk, Wolfgang J.
Date of Publication (YYYY-MM-DD):2006-12-15
Title of Journal:Revista de Biología Tropical
Journal Abbrev.:Rev. Biol. Trop.
Issue / Number:4
Start Page:1171
End Page:1178
Review Status:not specified
Audience:Not Specified
Abstract / Description:Astrocaryum jauari Mart. (Arecaceae) is one of the commonest palm species occurring in nutritionally poor Amazonian black water floodplains. It is an emergent or subcanopy tree that grows on river banks and islands, with a wide distribution along the entire flooding gradient, tolerating flood durations between 30 and 340 days. The species is important for fish nutrition in the floodplains, and is also used for hearts of palm. In the present study, the auto-ecology of A. jauari w,as analysed over a period of two years in the Anavilhanas Archipelago, Rio Negro, Brazil, with a focus on phenology, fruit production, and seed dispersal. Fruit fall is annual and synchronized with high water levels, with a production of 1.6 ton of fruit ha-1. The fruits are eaten by at least 16 species of fish which either gnaw the pulp, fragment the seed, or ingest the entire fruit, thus acting as dispersal, agents. Besides ichthyocory, barochory (with subsequent vegetative propagation) is an important dispersal mode, enhancing the occurrence of large masses of individuals in the Anavilhanas islands and in the region of maximum palm heart extraction near Barcelos.
Free Keywords:Astrocaryum jauari; floodplains; Amazonia; Anavilhanas; Brazil; ichthyocory; barochory
External Publication Status:published
Document Type:Article
Communicated by:Brigitte Lechner
Affiliations:MPI für Limnologie/AG Tropenökologie
External Affiliations:INPA/Max Planck, C.P. 478, 69011 Manaus, Am, Brazil
Identifiers:ISSN:0034-7744 [ID-No:1]
LOCALID:2480/S 38510 [Listen-Nummer/S-Nummer]
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