نتایج جستجو برای: diversity of litter invertebrates
تعداد نتایج: 21183315 فیلتر نتایج به سال:
To investigate the relationship between litter complexity and composition and the diversity and composition of the oribatid mite fauna inhabiting it, an experiment was carried out at a single forested site in the mountains of North Carolina. USA. Natural litterfall was excluded from a series of 1 m2 plots and replaced with treatment litters that varied in composition and complexity. Plots of pu...
We investigated the effect of leaf litter on below ground carbon export and soil carbon formation in order to understand how litter diversity affects carbon cycling in forest ecosystems. 13C labeled and unlabeled leaf litter of beech (Fagus sylvatica) and ash (Fraxinus excelsior), characterized by low and high decomposability, were used in a litter exchange experiment in the Hainich National Pa...
Denaturing gradient gel electrophoresis (DGGE) of amplified fragments of genes coding for 16S rRNA was used to study the development of bacterial communities during decomposition of crop residues in agricultural soils. Ten strains were tested, and eight of these strains produced a single band. Furthermore, a mixture of strains yielded distinguishable bands. Thus, DGGE DNA band patterns were use...
In order to study the diversity of the leaf litter and aerial litter filamentous fungi, sample were collected from a semi-deciduous seasonal forest located in the Miguel Calmon, state of Bahia, Brazil. Leaf litter and aerial litter samples were collected. Samples were placed in moist chambers. Five conidial fungi were described for the first time in Brazil. Comments about their specimens and di...
The impacts of leaf litter from genetically modified hybrid poplar accumulating high levels of condensed tannins (proanthocyanidins) were examined in soil microcosms consisting of moss growing on sieved soil. Moss preferentially proliferated in microcosms with lower tannin content; DGGE (denaturing gradient gel electrophoresis) detected increased fungal diversity in microcosms with low-tannin l...
Laboratory microcosms were used to determine how leaf degradation processes (C–CO2 release and leaf mass loss) are affected by the diversity of soil macro-invertebrate assemblages (comprising earthworms, woodlice and millipedes). The relationships were tested using different measures of diversity (number of species and trait dissimilarities). Net diversity effects and transgressive overyielding...
Climate change is increasing the frequency of extreme fires. In 2019–2020, fires burned 97 000 km2 native vegetation in south-eastern Australia, affecting many areas rainforest, which has historically less frequently. One year post-fires, we surveyed litter macroinvertebrates 52 temperate rainforest sites. Sites had experienced levels fire severity (unburnt, medium and high severity). We asked ...
Management of biodiversity and ecosystem services requires a better understanding of the factors that influence soil biodiversity. We characterized the species (or genera) richness of 10 taxonomic groups of invertebrate soil animals in replicated monocultures of 14 temperate tree species. The focal invertebrate groups ranged from microfauna to macrofauna: Lumbricidae, Nematoda, Oribatida, Gamas...
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