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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: |
MARIANI, L.; SATO, Y.; NIWA, S.; KANEKO, N. |
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Título: |
Organic matter decomposition accelerated in fresh faecal pellets of the millipede Parafrontaria laminata. |
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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: |
The millipede P. laminata (Diplopoda: Polydesmida: Xystodesmidae) is the most abundant
macro-fauna species in Japanese larch plantation forests. This species has a 8 years cycle
with spectacular swarming of the adults and subadults provoking periodic traffic disturbances.
P. laminata incorporates litter to soil and produces stable faecal pellets and stable moulting
chambers: it is an ecosystem engineer of these Andosols.
Faeces of subadults P. laminata were produced in laboratory conditions from 2 mm sieved
fresh surface soil. Twenty g of fresh faeces were incubated in triplicate at 15°C in the dark for 4
weeks. The soil fed to the millipedes was used as control. The passage of soil through the gut
caused an increase in soil microbial respiration, N mineralization and N2O emissions of about
2.3 times, 4 times and 33%, respectively. Protease activity and microbial diversity (measured
by the physiological fingerprinting phospholipid fatty acids method: PLFA) were also significantly
increased in the faeces. Consequently these casts are a hot spot of soil microbial diversity and
a meaningful source of available nitrogen for plants. |
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Categoria do assunto: |
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Marc: |
LEADER 01866naa a2200157 a 4500
001 1315057
005 2008-10-06
008 2008 bl uuuu u00u1 u #d
100 1 $aMARIANI, L.
245 $aOrganic matter decomposition accelerated in fresh faecal pellets of the millipede Parafrontaria laminata.
260 $c2008
520 $aThe millipede P. laminata (Diplopoda: Polydesmida: Xystodesmidae) is the most abundant macro-fauna species in Japanese larch plantation forests. This species has a 8 years cycle with spectacular swarming of the adults and subadults provoking periodic traffic disturbances. P. laminata incorporates litter to soil and produces stable faecal pellets and stable moulting chambers: it is an ecosystem engineer of these Andosols. Faeces of subadults P. laminata were produced in laboratory conditions from 2 mm sieved fresh surface soil. Twenty g of fresh faeces were incubated in triplicate at 15°C in the dark for 4 weeks. The soil fed to the millipedes was used as control. The passage of soil through the gut caused an increase in soil microbial respiration, N mineralization and N2O emissions of about 2.3 times, 4 times and 33%, respectively. Protease activity and microbial diversity (measured by the physiological fingerprinting phospholipid fatty acids method: PLFA) were also significantly increased in the faeces. Consequently these casts are a hot spot of soil microbial diversity and a meaningful source of available nitrogen for plants.
700 1 $aSATO, Y.
700 1 $aNIWA, S.
700 1 $aKANEKO, N.
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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Embrapa Florestas (CNPF) |
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