Esto realza aun mas la importancia de la fauna del suelo como procesador de la materia organica; el horizonte organico de este tipo de suelos normalmente conserva una densidad baja de macrofauna como lombrices de tierra, diplopodos e isopodos, mientras que la mesofauna y
microfauna constituyen los organismos mas abundantes (Salmon et al.
(in press) include microflora (palynomorphs) and
microfauna (foraminifera), marine megafossils, and U-Pb geochronology from a thin tuff bed associated with coal.
The central radiolaritic sequence is Lias-Lower Dogger in age, while on the eastern and western side of the block the
microfauna are Barremian to Cenomanian (de Wever et al., 1985).
It involves the biogeochemical cycling of nutrients as well as the production of phytoplankton, zooplankton,
microfauna and macrophytes living in the aquatic system.
On the other hand, the
microfauna from Level K in Gruta do Caldeirao, including Allocricetus bursae, shows how steppic conditions migrated to the western part of the Iberian Peninsula and prevailed when the first industries of the Upper Paleolithic occurred, an evolved phase of the Aurignacian, about probably 35-34 Ka calBP.
Responses of the soil microbial biomass and
microfauna to long-term and short-term manure applications.
Hassink J, Neutel AM, de Ruiter PC (1994) C and N mineralisation in sandy and loamy grassland soils: the role of microbes and
microfauna. Soil Biology & Biochemistry 26, 1565-1571.
Body size and metabolic rate in the animal kingdom with special regard to the marine
microfauna. C.
Two months after defaunation the humus was checked for nematodes and other
microfauna, enchytraeids, and microarthropods using appropriate extraction methods.
In the rhizosphere, very important and intensive interactions are taking place between the plant, soil, microorganisms and soil
microfauna. In fact, biochemical interactions and exchanges of signal molecules between plants and soil microorganisms have been described and reviewed.
At Day 0, mesofauna and
microfauna were added to the appropriate treatments (M+I and M+W+I).
Segundo Esteves (1998), o aumento nas concentracoes de nitrogenio se deve ao alto teor de nitrogenio das bacterias, fungos, diatomaceas perifiticas e da
microfauna que coloniza os detritos, embora se considere que, com o processo de secagem, parte dos organismos que colonizam os detritos foi eliminada.
