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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/02/1998 |
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Data da última atualização: |
05/04/2017 |
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Autoria: |
MINSHALL, G. W. |
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Título: |
Role of allochthonous detritus in the trophic structure of a woodland springbrook community. |
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Ano de publicação: |
1967 |
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Fonte/Imprenta: |
Ecology, v.48, n.1, p.139-149, Winter, 1967. |
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Idioma: |
Inglês |
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Conteúdo: |
The community trophic structure of Morgan's Creek, Meade County, Kentucky was analysed through regular measurement of standing crops of the chief potential sources of plant materials available to the animals (suspended particulate, attached particulate, and allochthonous leaf materials) and an examination of their gut contents. The most important food was allochthonous leaf materials, which occurred as suspended in the water, as a component of materials attached to the strembed, and as whole leaves and fragmnents. Diatoms were the only other important source of plant materials and constituted the greatest proportion of the attached organic fraction. Mean standing crop measurements of potential foods five sampliong stations ranged from 0.6 to 1.0 kcal/m3 for suspended particulate organic matter; 12 to 19 kcal/m2 for attached particulate organic matter; and 4.7 to 13 kcal/m2 for allochthonous leaf materials. Comparison of standing crop data with previous findings indicates that the values generally are within the known ranges for flowing waters. Analysis of gut contents and determination of the principal pathways of energy flow in the stream indicate that imported organic matter in the form of allochthonous leaf materials provides the main source of energy for the primary consumers and, indirectly, for the entire benthic community of Morgan's Creek. Of the 37 taxa of animals studied, 24 were herbivores, 5 omnivores, and 8 carnivores. In general, detritus made up from 50 to 100% of all the materials ingested by both the herbivores and omnivores. The total number of benthic animals was comprised of 14% herbivores, 83% omnivores, and 3% carnivores. Gammarus minus was the single most important member of the fauna. It contributed 81% of the total number of invertebrates, and well over 90% of its diet consisted of allochthounous leaf detritus. MenosThe community trophic structure of Morgan's Creek, Meade County, Kentucky was analysed through regular measurement of standing crops of the chief potential sources of plant materials available to the animals (suspended particulate, attached particulate, and allochthonous leaf materials) and an examination of their gut contents. The most important food was allochthonous leaf materials, which occurred as suspended in the water, as a component of materials attached to the strembed, and as whole leaves and fragmnents. Diatoms were the only other important source of plant materials and constituted the greatest proportion of the attached organic fraction. Mean standing crop measurements of potential foods five sampliong stations ranged from 0.6 to 1.0 kcal/m3 for suspended particulate organic matter; 12 to 19 kcal/m2 for attached particulate organic matter; and 4.7 to 13 kcal/m2 for allochthonous leaf materials. Comparison of standing crop data with previous findings indicates that the values generally are within the known ranges for flowing waters. Analysis of gut contents and determination of the principal pathways of energy flow in the stream indicate that imported organic matter in the form of allochthonous leaf materials provides the main source of energy for the primary consumers and, indirectly, for the entire benthic community of Morgan's Creek. Of the 37 taxa of animals studied, 24 were herbivores, 5 omnivores, and 8 carnivores. In general, detritus made up from 50 to 100... Mostrar Tudo |
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Palavras-Chave: |
Allochthonous detritus; Ecossistema aquatico; Food; Springbrook community. |
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Thesagro: |
Alimento; Ecologia; Matéria Orgânica. |
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Thesaurus Nal: |
aquatic ecosystems; ecology; organic matter. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02539naa a2200241 a 4500
001 1792107
005 2017-04-05
008 1967 bl --- 0-- u #d
100 1 $aMINSHALL, G. W.
245 $aRole of allochthonous detritus in the trophic structure of a woodland springbrook community.
260 $c1967
520 $aThe community trophic structure of Morgan's Creek, Meade County, Kentucky was analysed through regular measurement of standing crops of the chief potential sources of plant materials available to the animals (suspended particulate, attached particulate, and allochthonous leaf materials) and an examination of their gut contents. The most important food was allochthonous leaf materials, which occurred as suspended in the water, as a component of materials attached to the strembed, and as whole leaves and fragmnents. Diatoms were the only other important source of plant materials and constituted the greatest proportion of the attached organic fraction. Mean standing crop measurements of potential foods five sampliong stations ranged from 0.6 to 1.0 kcal/m3 for suspended particulate organic matter; 12 to 19 kcal/m2 for attached particulate organic matter; and 4.7 to 13 kcal/m2 for allochthonous leaf materials. Comparison of standing crop data with previous findings indicates that the values generally are within the known ranges for flowing waters. Analysis of gut contents and determination of the principal pathways of energy flow in the stream indicate that imported organic matter in the form of allochthonous leaf materials provides the main source of energy for the primary consumers and, indirectly, for the entire benthic community of Morgan's Creek. Of the 37 taxa of animals studied, 24 were herbivores, 5 omnivores, and 8 carnivores. In general, detritus made up from 50 to 100% of all the materials ingested by both the herbivores and omnivores. The total number of benthic animals was comprised of 14% herbivores, 83% omnivores, and 3% carnivores. Gammarus minus was the single most important member of the fauna. It contributed 81% of the total number of invertebrates, and well over 90% of its diet consisted of allochthounous leaf detritus.
650 $aaquatic ecosystems
650 $aecology
650 $aorganic matter
650 $aAlimento
650 $aEcologia
650 $aMatéria Orgânica
653 $aAllochthonous detritus
653 $aEcossistema aquatico
653 $aFood
653 $aSpringbrook community
773 $tEcology$gv.48, n.1, p.139-149, Winter, 1967.
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Registro original: |
Embrapa Pantanal (CPAP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Acre. Para informações adicionais entre em contato com cpafac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
11/11/2008 |
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Data da última atualização: |
07/11/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARNEIRO JUNIOR, J. M.; ASSIS, G. M. L. de; CAVALCANTE, F. A.; MARTINS, W. M. de O. |
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Afiliação: |
JOSE MARQUES CARNEIRO JUNIOR, CPAF-AC; GISELLE MARIANO LESSA DE ASSIS, CPAF-AC; FRANCISCO ALOISIO CAVALCANTE, CPAF-AC; WILLIANE MARIA DE OLIVEIRA MARTINS, UFAC. |
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Título: |
Efeito da não aleatoriedade dos valores genéticos de touros em grupos de contemporâneos na avaliação genética animal. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 45., 2008, Lavras. Biotecnologia e sustentabilidade: anais dos resumos. Lavras: UFLA: SBZ, 2008. |
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Páginas: |
3 p. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Simulação de dados. |
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Thesagro: |
Melhoramento Genético Animal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00714nam a2200169 a 4500
001 1510556
005 2023-11-07
008 2008 bl uuuu u00u1 u #d
100 1 $aCARNEIRO JUNIOR, J. M.
245 $aEfeito da não aleatoriedade dos valores genéticos de touros em grupos de contemporâneos na avaliação genética animal.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 45., 2008, Lavras. Biotecnologia e sustentabilidade: anais dos resumos. Lavras: UFLA: SBZ$c2008
300 $a3 p.$c1 CD-ROM.
650 $aMelhoramento Genético Animal
653 $aSimulação de dados
700 1 $aASSIS, G. M. L. de
700 1 $aCAVALCANTE, F. A.
700 1 $aMARTINS, W. M. de O.
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