Earthworms and Seeds

Earthworms and Soil Pollutants

Although the toxicity of metal contaminated soils has been assessed with various bioassays, more information is needed about the biochemical responses, which may help to elucidate the mechanisms involved in metal toxicity. We previously reported that the earthworm, Eisenia fetida, accumulates cadmium in its seminal vesicles. The bio-accumulative ability of earthworms is well known, and thus the...

Earthworms and Vermiculture Biotechnology

Earthworms and vermicomposting

A review is presented summarizing the global state-of-the-art, including the gist of the studies conducted by the authors, on vermicomposting. Studies on the impact of vermicast on plant growth are also reviewed. The paper brings out the suitability or otherwise of different species of earthworms to ‘bioprocess’ different types of organic waste. The paper also presents the gist of the studies–w...

Earthworms and Collembola Relationships: Effects

1 2 Relationships between anecic earthworms (Lumbricus terrestris and Aporrectodea 3 giardi) and the collembolan species Heteromurus nitidus (Templeton, 1835), which is known 4 to be attracted to earthworms, were investigated in an 8-week laboratory experiment. Our 5 aims were (1) to assess whether earthworms influence the population dynamics of H. nitidus, 6 and (2) to study pathways of influe...

On Meteors, Earthworms and Wimps

We study a model of mass redistribution on a finite graph. We address the questions of convergence to equilibrium and the rate of convergence. We present theorems on the distribution of empty sites and the distribution of mass at a fixed vertex. These distributions are related to random permutations with certain peak sets.