Vatsenok V S
Parazitologiia. 1995 Jul-Aug;29(4):267-71.
The egg-laying activity in the fleas Leptopsylla segnis Schonherr declined when their number on the host (white mouse) was risen from 2-5 to 20. However, if the number of the parasites on host exceeded 30 the egg output per female increased. It is supposed, there is an density-dependent regulation of egg-laying activity in L. segnis, which operates in certain diapason of flea abundance. It appears that mechanism of this regulation is suppressed by heavy infestation.
当缓慢细蚤（Schonherr）在宿主（小白鼠）身上的数量从2 - 5只增加到20只时，其产卵活动减少。然而，如果宿主身上的寄生虫数量超过30只，每只雌蚤的产卵量就会增加。据推测，缓慢细蚤的产卵活动存在密度依赖性调节，这种调节在跳蚤数量的特定范围内起作用。看来这种调节机制会受到重度感染的抑制。
