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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
06/10/2008 |
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Data da última atualização: |
06/10/2008 |
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Autoria: |
TAYASU, I.; HYODO, F.; KONATÉ, S.; TONDOH, J. E.; LAVELLE, P. |
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Título: |
Feeding group diversity of soil macrofauna (termites and earthworms) in the Lamto reserve in Ivory Coast. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
We investigated carbon and nitrogen stable isotope ratios and radiocarbon concentration of
soil macrofauna (termites and eathworms) obtained from the Lamto reserve in Ivory Coast. Two
different vegetations were selected: a gallery forest along the Bandama river and a grass savanna
dominated by Hyparrhenia and Andropogon. Three replicated plots were set in each vegetation.
Termites and earthworms were sampled by hand-sorting. The isotope ratios of soils, leaf-litter
and grass were determined and compared with the fauna.
Noditermes aburiensis and Euchilotermes tensus, which are abundant soil-feeding termites in
the gallery forest, had the highest values in both carbon and nitrogen isotope ratios within the
gallery forest. Several species in the subfamily Termitinae and soldierless termites (the subfamily
Apicotermitinae) had the ?elta-13C and ?elta-15N values lower than N. aburiensis and E. tensu.
Cephalotermes rectangularis, Termes hospes and Amitermes evuncifer were plotted in the ?elta-
13C and ?elta-15N region, which is so-called a wood/soil interface feeder. Microcerotemes
pauvus and other wood-feeding termites had the lowest ?elta-13C and ?elta-15N values. In
contrast, Trinervitermes geminatus was the least enriched in nitrogen isotope ratio at the grass
savanna.
Epigeic species of Dichogaster had the lowest delta-15N and ?elta-13C values at both
vegetation. Milsonia anomala, which is a common mesohumic endogeic earthworm in Lamto,
had higher delta-15N values than epigeic species of Dichogaster. Delta-15N values in endogeic
eudrilid worms were still higher, and they were the highest in the gallery forest. In total,
categorization by the isotope ratios (Tayasu 1998) was in good agreement with the ecological
categorization.
Agastrodrilus opisthogynus, which has been sampled only in the grass savanna, had the highest
delta-15N values in the grass savanna. Hyodo et al. (in press) have found that there is a good
correlation between delta-15N and capital-delta-14C values. The fact suggests that termites
and earthworms which consume more decomposed materials (?humification gradient? indicated
by delta-15N; Tayasu et al. 1997) utilized ?aged? carbon indicated by capital-delta-14C. However,
capital-delta-14C values in A. opisthogynus did not show the same trend, instead, the higher
delta-15N values were considered to be caused by the trophic enrichment. Our results confirmed
the hypothesis that Agastrodrilus opisthogynus is predatory (Lavelle, 1983).
References:
Lavelle, P. (1983) Agastrodrilus Omodeo and Vaillaud, a genus of carnivorous earthworms from
the Ivory Coast. In: Earthworm Ecology (J.E. Satchell ed.) pp. 425-429. Chapman and Hall,
London.
Hyodo, F., Tayasu, I., Konaté, S., Tondoh, J.E., Lavelle, P. and Wada. E. (2008) Gradual
enrichment of 15N with humification of diets in a belowground food web: relation between 15N
and diet age determined using 14C. Functional Ecology in press
Tayasu I. (1998) The use of carbon and nitrogen isotope ratios in termite research. Ecological
Research 13: 377-387.
Tayasu,I., Abe,T., Eggleton,P. and Bignell,D.E. (1997) Nitrogen and carbon isotope ratios in
termites: an indicator of trophic habit along the gradient from wood-feeding to soil-feeding.
Ecological Entomology 22: 343-351. MenosWe investigated carbon and nitrogen stable isotope ratios and radiocarbon concentration of
soil macrofauna (termites and eathworms) obtained from the Lamto reserve in Ivory Coast. Two
different vegetations were selected: a gallery forest along the Bandama river and a grass savanna
dominated by Hyparrhenia and Andropogon. Three replicated plots were set in each vegetation.
Termites and earthworms were sampled by hand-sorting. The isotope ratios of soils, leaf-litter
and grass were determined and compared with the fauna.
Noditermes aburiensis and Euchilotermes tensus, which are abundant soil-feeding termites in
the gallery forest, had the highest values in both carbon and nitrogen isotope ratios within the
gallery forest. Several species in the subfamily Termitinae and soldierless termites (the subfamily
Apicotermitinae) had the ?elta-13C and ?elta-15N values lower than N. aburiensis and E. tensu.
Cephalotermes rectangularis, Termes hospes and Amitermes evuncifer were plotted in the ?elta-
13C and ?elta-15N region, which is so-called a wood/soil interface feeder. Microcerotemes
pauvus and other wood-feeding termites had the lowest ?elta-13C and ?elta-15N values. In
contrast, Trinervitermes geminatus was the least enriched in nitrogen isotope ratio at the grass
savanna.
Epigeic species of Dichogaster had the lowest delta-15N and ?elta-13C values at both
vegetation. Milsonia anomala, which is a common mesohumic endogeic earthworm in Lamto,
had higher delta-15N values than epigei... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 04031naa a2200169 a 4500
001 1315052
005 2008-10-06
008 2008 bl uuuu u00u1 u #d
100 1 $aTAYASU, I.
245 $aFeeding group diversity of soil macrofauna (termites and earthworms) in the Lamto reserve in Ivory Coast.
260 $c2008
520 $aWe investigated carbon and nitrogen stable isotope ratios and radiocarbon concentration of soil macrofauna (termites and eathworms) obtained from the Lamto reserve in Ivory Coast. Two different vegetations were selected: a gallery forest along the Bandama river and a grass savanna dominated by Hyparrhenia and Andropogon. Three replicated plots were set in each vegetation. Termites and earthworms were sampled by hand-sorting. The isotope ratios of soils, leaf-litter and grass were determined and compared with the fauna. Noditermes aburiensis and Euchilotermes tensus, which are abundant soil-feeding termites in the gallery forest, had the highest values in both carbon and nitrogen isotope ratios within the gallery forest. Several species in the subfamily Termitinae and soldierless termites (the subfamily Apicotermitinae) had the ?elta-13C and ?elta-15N values lower than N. aburiensis and E. tensu. Cephalotermes rectangularis, Termes hospes and Amitermes evuncifer were plotted in the ?elta- 13C and ?elta-15N region, which is so-called a wood/soil interface feeder. Microcerotemes pauvus and other wood-feeding termites had the lowest ?elta-13C and ?elta-15N values. In contrast, Trinervitermes geminatus was the least enriched in nitrogen isotope ratio at the grass savanna. Epigeic species of Dichogaster had the lowest delta-15N and ?elta-13C values at both vegetation. Milsonia anomala, which is a common mesohumic endogeic earthworm in Lamto, had higher delta-15N values than epigeic species of Dichogaster. Delta-15N values in endogeic eudrilid worms were still higher, and they were the highest in the gallery forest. In total, categorization by the isotope ratios (Tayasu 1998) was in good agreement with the ecological categorization. Agastrodrilus opisthogynus, which has been sampled only in the grass savanna, had the highest delta-15N values in the grass savanna. Hyodo et al. (in press) have found that there is a good correlation between delta-15N and capital-delta-14C values. The fact suggests that termites and earthworms which consume more decomposed materials (?humification gradient? indicated by delta-15N; Tayasu et al. 1997) utilized ?aged? carbon indicated by capital-delta-14C. However, capital-delta-14C values in A. opisthogynus did not show the same trend, instead, the higher delta-15N values were considered to be caused by the trophic enrichment. Our results confirmed the hypothesis that Agastrodrilus opisthogynus is predatory (Lavelle, 1983). References: Lavelle, P. (1983) Agastrodrilus Omodeo and Vaillaud, a genus of carnivorous earthworms from the Ivory Coast. In: Earthworm Ecology (J.E. Satchell ed.) pp. 425-429. Chapman and Hall, London. Hyodo, F., Tayasu, I., Konaté, S., Tondoh, J.E., Lavelle, P. and Wada. E. (2008) Gradual enrichment of 15N with humification of diets in a belowground food web: relation between 15N and diet age determined using 14C. Functional Ecology in press Tayasu I. (1998) The use of carbon and nitrogen isotope ratios in termite research. Ecological Research 13: 377-387. Tayasu,I., Abe,T., Eggleton,P. and Bignell,D.E. (1997) Nitrogen and carbon isotope ratios in termites: an indicator of trophic habit along the gradient from wood-feeding to soil-feeding. Ecological Entomology 22: 343-351.
700 1 $aHYODO, F.
700 1 $aKONATÉ, S.
700 1 $aTONDOH, J. E.
700 1 $aLAVELLE, P.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
20/09/2011 |
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Data da última atualização: |
16/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
CASTRO, A. C. R. de; ARAGAO, F. A. S. de; LOGES, V.; COSTA, A. S.; WILLADINO, L. G.; CASTRO, M. F. A. |
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Afiliação: |
ANA CECILIA RIBEIRO DE CASTRO, CNPAT; FERNANDO ANTONIO SOUZA DE ARAGAO, CNPAT; UFRPE; UFRPE; UFRPE; UFRPE. |
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Título: |
Macronutrients contents in two development phases of Heliconia psittacorum × H. spathocircinata ?Golden Torch?. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Acta Horticulturae, v. 886, p. 283-286, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Nutritional deficiency affects heliconia cut flowers production and the success of its commercialization. There is a great variation in heliconia management in farm production, mainly concerning fertilization. The use of different NPK formulation is very common without considering development phase, whether vegetative or reproductive, species, seasonality or highest flowering period. The aim of this paper was to evaluate N, P, K content in two development phases at three different plant parts. The rhizome, a mix of leaves and the third leaf from Heliconia psittacorum × H. spathocircinata ?Golden Torch? plants were used at 90 days after planting (DAP), representing the vegetative phase, and at 360 DAP representing the reproductive phase. The nutrients contents did differ statistically between the phases. The greatest nitrogen amount was observed at the reproductive phase. On the other hand, P and K content was highest at the vegetative phase. The highest N content was found in the mix of leaves and in the third leaf. The superior N content at the mix of leaves may indicate that other leaves may have a N content even higher than the third leaf. The rhizome showed a higher a higher P and K content than leaves, without any distinction between the mix of leaves or the third leaf. There was an interaction between the development phase and plant parts for all the studied macronutrients. For the elements P and K the same result for each factor separately can be observed at the interaction of these factors, where rhizome showed the highest contents at the vegetative phase which characterizes a simple interaction. These results will be useful to other research on nutrition of heliconia and complementary studies should be conducted with all macronutrients and plant parts. MenosNutritional deficiency affects heliconia cut flowers production and the success of its commercialization. There is a great variation in heliconia management in farm production, mainly concerning fertilization. The use of different NPK formulation is very common without considering development phase, whether vegetative or reproductive, species, seasonality or highest flowering period. The aim of this paper was to evaluate N, P, K content in two development phases at three different plant parts. The rhizome, a mix of leaves and the third leaf from Heliconia psittacorum × H. spathocircinata ?Golden Torch? plants were used at 90 days after planting (DAP), representing the vegetative phase, and at 360 DAP representing the reproductive phase. The nutrients contents did differ statistically between the phases. The greatest nitrogen amount was observed at the reproductive phase. On the other hand, P and K content was highest at the vegetative phase. The highest N content was found in the mix of leaves and in the third leaf. The superior N content at the mix of leaves may indicate that other leaves may have a N content even higher than the third leaf. The rhizome showed a higher a higher P and K content than leaves, without any distinction between the mix of leaves or the third leaf. There was an interaction between the development phase and plant parts for all the studied macronutrients. For the elements P and K the same result for each factor separately can be observed at the inter... Mostrar Tudo |
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Palavras-Chave: |
Tropical floriculture. |
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Thesaurus NAL: |
nitrogen; phosphorus; plant nutrition; potassium. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02484naa a2200241 a 4500
001 1900999
005 2018-10-16
008 2011 bl uuuu u00u1 u #d
100 1 $aCASTRO, A. C. R. de
245 $aMacronutrients contents in two development phases of Heliconia psittacorum × H. spathocircinata ?Golden Torch?.
260 $c2011
520 $aNutritional deficiency affects heliconia cut flowers production and the success of its commercialization. There is a great variation in heliconia management in farm production, mainly concerning fertilization. The use of different NPK formulation is very common without considering development phase, whether vegetative or reproductive, species, seasonality or highest flowering period. The aim of this paper was to evaluate N, P, K content in two development phases at three different plant parts. The rhizome, a mix of leaves and the third leaf from Heliconia psittacorum × H. spathocircinata ?Golden Torch? plants were used at 90 days after planting (DAP), representing the vegetative phase, and at 360 DAP representing the reproductive phase. The nutrients contents did differ statistically between the phases. The greatest nitrogen amount was observed at the reproductive phase. On the other hand, P and K content was highest at the vegetative phase. The highest N content was found in the mix of leaves and in the third leaf. The superior N content at the mix of leaves may indicate that other leaves may have a N content even higher than the third leaf. The rhizome showed a higher a higher P and K content than leaves, without any distinction between the mix of leaves or the third leaf. There was an interaction between the development phase and plant parts for all the studied macronutrients. For the elements P and K the same result for each factor separately can be observed at the interaction of these factors, where rhizome showed the highest contents at the vegetative phase which characterizes a simple interaction. These results will be useful to other research on nutrition of heliconia and complementary studies should be conducted with all macronutrients and plant parts.
650 $anitrogen
650 $aphosphorus
650 $aplant nutrition
650 $apotassium
653 $aTropical floriculture
700 1 $aARAGAO, F. A. S. de
700 1 $aLOGES, V.
700 1 $aCOSTA, A. S.
700 1 $aWILLADINO, L. G.
700 1 $aCASTRO, M. F. A.
773 $tActa Horticulturae$gv. 886, p. 283-286, 2011.
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