0 (usually worm) a kind of small animal with a ringed body and no backbone, living in damp earth. -- meitemark
This simple model of earthworm population dynamics may be modified by some seasonal perturbations, leading to the appearance of one or several peaks.
Perhaps predation by mice on the island is not confined to small animals like insects and earthworms.
No earthworms were found in any of the pats.
Plots were watered as and when necessary to maintain moist surface conditions and encourage slug and earthworm activity.
Variation in soil temperatures and moisture content, respectively, accounted for 98 and 99 % of the variation in earthworm casts.
But tunnels may also originate from the underside of the pat, mainly by the action of earthworms and insect larvae.
However, using earthworm-specific primers, and appropriate temperature gradient conditions, species-specific bands can be resolved (fig. 5) (similar results for aphid not shown).
In contrast, bird's nests, female insect's oviposition site choices, and the soil transformed by earthworms also modify the environment of the constructor's descendants.
