Exempel på earthworm

• These included the use of earthworms to create soil nutrients, plant-oil pesticides, and predator insects to kill pests. 

• Earthworms were not plentiful on the island. 

• He carefully picked his way on tiptoe among the earthworms, without killing a single one. 

• Mr. Darwin believes that traces of it can be found in earthworms and other annelids. 

• One day my sister threw a handful of earthworms on to my dress. 

• The constant stirring up of the soil by earthworms is an aid in keeping the soil open to air and water. 

• As a result, contemporary earthworms live in worlds that have been partly niche-constructed by many generations of ancestors.

• Explaining density-dependent regulation in earthworm populations using life-history analysis.

• Earthworm casts were negatively related to soil temperatures and positively to moisture content.

• Further experiments are needed to assess costs and benefits of earthworms to plants and ants, as well as to clarify vital aspects of their biology.

• Both species have two main transmission routes, either directly or indirectly, involving paratenic hosts such as rodents or earthworms.

• Variation in soil temperatures and moisture content, respectively, accounted for 97 and 96 % of the variation in earthworm casts.

• The third experiment investigated ant reaction to earthworm mucus.

• 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.

• However, using earthworm-specific primers, and appropriate temperature gradient conditions, species-specific bands can be resolved (fig. 5) (similar results for aphid not shown).

• But tunnels may also originate from the underside of the pat, mainly by the action of earthworms and insect larvae.

• Variation in soil temperatures and moisture content, respectively, accounted for 98 and 99 % of the variation in earthworm casts.

• Plots were watered as and when necessary to maintain moist surface conditions and encourage slug and earthworm activity.

• No earthworms were found in any of the pats.

• Perhaps predation by mice on the island is not confined to small animals like insects and earthworms.

• This simple model of earthworm population dynamics may be modified by some seasonal perturbations, leading to the appearance of one or several peaks.