Dynamics of allochthonous organic matter in a tropical Brazilian headstream
The species composition of the riparian vegetation and the seasonal contribution of input and storage of fine and coarse particulate organic matter were assessed in a 3rd order stretch. Fourteen tree species in the riparian zone were identified, with 3 species contributing with 68% of total litter i...
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| Format: | Article |
| Language: | English |
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Instituto de Tecnologia do Paraná (Tecpar)
2006-11-01
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| Series: | Brazilian Archives of Biology and Technology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700014 |
| _version_ | 1798045171649085440 |
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| author | José Francisco Gonçalves Júnior Juliana Silva França Marcos Callisto |
| author_facet | José Francisco Gonçalves Júnior Juliana Silva França Marcos Callisto |
| author_sort | José Francisco Gonçalves Júnior |
| collection | DOAJ |
| description | The species composition of the riparian vegetation and the seasonal contribution of input and storage of fine and coarse particulate organic matter were assessed in a 3rd order stretch. Fourteen tree species in the riparian zone were identified, with 3 species contributing with 68% of total litter input: Miconia chartacea Triana (43%), Miconia cyathanthera Triana (16%) and Erythroxylum pelletarianum St. Hil (9%). The allochthonous input of coarse particulate organic matter (CPOM) was composed mainly by leaves (over 50%). Species composition and the contribution of each plant species biomass for vertical, lateral and soil inputs and benthic stocks varied along the study period. The maximum values found in September, November and December coincided with the beginning of the rainy season. There were no differences between the allochthonous vertical and lateral inputs of CPOM to the stream. Differently to other studies, this result was probably due to the peculiar composition of stream’s riparian vegetation at Serra do Cipó.<br>Foram determinadas as espécies que compõem a vegetação ripária e avaliada a variação sazonal da entrada e o estoque de matéria orgânica particulada grossa (MOPG) em um trecho de 3ª ordem. Três espécies dentre 14 identificadas foram as mais abundantes na região ripária: Miconia chartacea Triana (43%), Miconia cyathanthera Triana (16%) and Erythroxylum pelletarianum St. Hil (9%). A matéria orgânica particulada alóctone foi composta principalmente por folhas (acima de 50%) Foi observado que MOPG e MOPF no estoque bêntico aumentou de julho a dezembro de 2001, sendo mais elevado em setembro, novembro e dezembro com o início da estação chuvosa. A composição de espécies e a biomassa de cada espécie no aporte de matéria orgânica vertical, lateral, no solo e estoque bêntico variaram ao longo do período estudado. Não foram encontradas diferenças significativas entre os aportes de matéria orgânica vertical, lateral e no solo. Este resultado contraria os encontrados em outros estudos, o que provavelmente expressa um caráter peculiar da vegetação ripária dos riachos de altitude na Serra do Cipó. |
| first_indexed | 2024-04-11T23:17:27Z |
| format | Article |
| id | doaj.art-3883e5be62d446729689be2ba6fb7ee9 |
| institution | Directory Open Access Journal |
| issn | 1516-8913 1678-4324 |
| language | English |
| last_indexed | 2024-04-11T23:17:27Z |
| publishDate | 2006-11-01 |
| publisher | Instituto de Tecnologia do Paraná (Tecpar) |
| record_format | Article |
| series | Brazilian Archives of Biology and Technology |
| spelling | doaj.art-3883e5be62d446729689be2ba6fb7ee92022-12-22T03:57:35ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242006-11-0149696797310.1590/S1516-89132006000700014Dynamics of allochthonous organic matter in a tropical Brazilian headstreamJosé Francisco Gonçalves JúniorJuliana Silva FrançaMarcos CallistoThe species composition of the riparian vegetation and the seasonal contribution of input and storage of fine and coarse particulate organic matter were assessed in a 3rd order stretch. Fourteen tree species in the riparian zone were identified, with 3 species contributing with 68% of total litter input: Miconia chartacea Triana (43%), Miconia cyathanthera Triana (16%) and Erythroxylum pelletarianum St. Hil (9%). The allochthonous input of coarse particulate organic matter (CPOM) was composed mainly by leaves (over 50%). Species composition and the contribution of each plant species biomass for vertical, lateral and soil inputs and benthic stocks varied along the study period. The maximum values found in September, November and December coincided with the beginning of the rainy season. There were no differences between the allochthonous vertical and lateral inputs of CPOM to the stream. Differently to other studies, this result was probably due to the peculiar composition of stream’s riparian vegetation at Serra do Cipó.<br>Foram determinadas as espécies que compõem a vegetação ripária e avaliada a variação sazonal da entrada e o estoque de matéria orgânica particulada grossa (MOPG) em um trecho de 3ª ordem. Três espécies dentre 14 identificadas foram as mais abundantes na região ripária: Miconia chartacea Triana (43%), Miconia cyathanthera Triana (16%) and Erythroxylum pelletarianum St. Hil (9%). A matéria orgânica particulada alóctone foi composta principalmente por folhas (acima de 50%) Foi observado que MOPG e MOPF no estoque bêntico aumentou de julho a dezembro de 2001, sendo mais elevado em setembro, novembro e dezembro com o início da estação chuvosa. A composição de espécies e a biomassa de cada espécie no aporte de matéria orgânica vertical, lateral, no solo e estoque bêntico variaram ao longo do período estudado. Não foram encontradas diferenças significativas entre os aportes de matéria orgânica vertical, lateral e no solo. Este resultado contraria os encontrados em outros estudos, o que provavelmente expressa um caráter peculiar da vegetação ripária dos riachos de altitude na Serra do Cipó.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700014Riparian vegetationinputstanding stockCerradoCPOM |
| spellingShingle | José Francisco Gonçalves Júnior Juliana Silva França Marcos Callisto Dynamics of allochthonous organic matter in a tropical Brazilian headstream Brazilian Archives of Biology and Technology Riparian vegetation input standing stock Cerrado CPOM |
| title | Dynamics of allochthonous organic matter in a tropical Brazilian headstream |
| title_full | Dynamics of allochthonous organic matter in a tropical Brazilian headstream |
| title_fullStr | Dynamics of allochthonous organic matter in a tropical Brazilian headstream |
| title_full_unstemmed | Dynamics of allochthonous organic matter in a tropical Brazilian headstream |
| title_short | Dynamics of allochthonous organic matter in a tropical Brazilian headstream |
| title_sort | dynamics of allochthonous organic matter in a tropical brazilian headstream |
| topic | Riparian vegetation input standing stock Cerrado CPOM |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700014 |
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