Influence of food particle size on inter- and intra-specific interactions of Allolobophora chlorotica (Savigny) and Lumbricus terrestrisThe 7th international symposium on earthworm ecology · Cardiff · Wales · 2002

摘要: Summary The inverse relationship between the particle size of food resources and earthworm growth rate is widely recognised. aim was to determine effects on interactions combinations adult hatchling A. chlorotica L. terrestris under laboratory conditions. Treatments were set up in 1 litre mesocosms, maintained darkness at 15 ± °C. Separated cattle solids (SCS) used as either unmilled or milled respectively, compared with SCS. Intra-specific competition detected pairings. A positive inter-specific interaction recorded mature fed SCS former significantly greater (P only treatments when paired (week 18). In treatments, 100% maturation achieved monoculture pairings by week 14. final mass initially (3.23 g) conspecifics. With SCS, lowest mean (1.04 Growth both species enhanced decreased this effect specific. intensity competitive influenced stage development. Results suggested a association two mechanisms for are proposed.