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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
13/04/1999 |
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Data da última atualização: |
13/04/1999 |
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Autoria: |
WATSON, D. J.; BALON, E. K. |
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Afiliação: |
Department of Zoology, University of Guelph, Guelph, Ontario, Canada. |
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Título: |
Ecomorphological analysis of fish taxocenes in rainforest streams of northern Borneo. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Journal of Fish Biology, v.25, p.371-384, 1984. |
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Idioma: |
Inglês |
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Conteúdo: |
Average species richness for fish taxocenes in the Nida River (Poland), Grand River (Ontario) and Baran River (Sarawak, Malaysia) was 7, 16 and 24 species respectively. Discriminant analysis of 15 morphological attributes indicated Baran fishes partitioned the habitat vertically into mainly syrface, pelagic, benthic and substratum niche types. Attribute comparisons among the river systems revealed a progression towards more sedentary benthic morphologic with increasing average species richness. Similarity, niche compression as a consequence of increasing average species richness was indicated by a reduction in lenght of life and average size, and was associated with development of complex life-history and reproductive styles. Total niche space occupied by the fish taxocenes was comparable in the three river systems despite differences in species richness. The amount of species packing and niche space occupied by Baran fish taxocenes were also not related to the numbers of species present. Fish community strucuture was apparently determined by the range of available resources and the associated specializations of the coexisting species. |
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Palavras-Chave: |
Ecomorphological analysis; Fish taxocenes; Northern Borneo; Rainforest. |
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Thesagro: |
Floresta Tropical; Peixe. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01726naa a2200205 a 4500
001 1795193
005 1999-04-13
008 1984 bl --- 0-- u #d
100 1 $aWATSON, D. J.
245 $aEcomorphological analysis of fish taxocenes in rainforest streams of northern Borneo.
260 $c1984
520 $aAverage species richness for fish taxocenes in the Nida River (Poland), Grand River (Ontario) and Baran River (Sarawak, Malaysia) was 7, 16 and 24 species respectively. Discriminant analysis of 15 morphological attributes indicated Baran fishes partitioned the habitat vertically into mainly syrface, pelagic, benthic and substratum niche types. Attribute comparisons among the river systems revealed a progression towards more sedentary benthic morphologic with increasing average species richness. Similarity, niche compression as a consequence of increasing average species richness was indicated by a reduction in lenght of life and average size, and was associated with development of complex life-history and reproductive styles. Total niche space occupied by the fish taxocenes was comparable in the three river systems despite differences in species richness. The amount of species packing and niche space occupied by Baran fish taxocenes were also not related to the numbers of species present. Fish community strucuture was apparently determined by the range of available resources and the associated specializations of the coexisting species.
650 $aFloresta Tropical
650 $aPeixe
653 $aEcomorphological analysis
653 $aFish taxocenes
653 $aNorthern Borneo
653 $aRainforest
700 1 $aBALON, E. K.
773 $tJournal of Fish Biology$gv.25, p.371-384, 1984.
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Embrapa Pantanal (CPAP) |
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