Analysis of the crowding effect inRana pipiens tadpoles

摘要: Rana pipiens tadpoles were grown at four densities in each of three series. Retardation due to crowding was seen despite the presence or absence feces. Statistical analysis shows retardation be a function effective density, possibly mediated by behavioral social factors, more importantly than diffusible products tadpoles. Although previous work has assumed growth-inhibiting factors “conditioned water” (water occupied population tadpoles) identical with cause effect, we have found that effect operates relatively independently these factors.