Data/hora: 14/06/2024 16:18:02

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 06/10/2008
Data da última atualização: | 06/10/2008
Autoria: | MARIANI, L.; SATO, Y.; NIWA, S.; KANEKO, N.
Título: | Organic matter decomposition accelerated in fresh faecal pellets of the millipede Parafrontaria laminata.
Ano de publicação: | 2008
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.
Idioma: | Inglês

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.

Categoria do assunto: | --
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (43830-1) - UPE - PL - -- - CD0305 -  -  - DIS