ant lion

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ant lion

[′ant ‚lī·ən]
(invertebrate zoology)
The common name for insects of the family Myrmeleontidae in the order Neuroptera; larvae are commonly called doodlebugs.
References in periodicals archive ?
In this paper, I describe the results of six manipulative field experiments and one laboratory experiment designed to test for the effects of intraguild predation on the coexistence of two species of larval ant lion (Neuroptera: Myrmeleontidae).
Within the ant lion zone, there is no spatial segregation of the two species, although their numbers are negatively correlated in small-quadrat samples (Gotelli 1993).
However, field experiments reveal that ants can detect and effectively avoid high-density ant lion aggregations (Gotelli 1996).
Collectively, these observations suggest that both space and food may be limiting resources for ant lion larvae.
Larvae were held in plastic dishes (12 cm diameter, 2 cm depth) filled with 270 g of oven-dried sand collected from the ant lion zone.
Dishes were randomly placed on the soil surface in the ant lion zone.
I also found no evidence of ongoing predation by ant lions on ants during the course of this experiment.
The probability of death (PD) was defined as the proportion of those ten workers that was successfully captured by ant lions.
Ant abundance was lowest for patches from which ant lions had been removed, whereas differences between forest floor and sand control treatments were not significant ([F.
A variety of circumstantial evidence suggests that dense aggregations of ant lion predators affect the distribution and abundance of ants: forager abundance in pitfall traps was consistently lower in the presence of ant lions [ILLUSTRATION FOR FIGURE 2 AND 4 OMITTED], and the rarefaction analysis suggested that the difference represented a random sample of individuals from the assemblage [ILLUSTRATION FOR FIGURE 4 OMITTED].
As in the natural experiment, predation of ants by ant lions was not observed during this experiment, suggesting that avoidance behavior is the primary determinant of reduced ant numbers within the ant lion zone.
Instead, foraging activity was suppressed only in the presence of living ant lions [ILLUSTRATION FOR FIGURE 6a OMITTED], or empty pits from which ant lions had recently been removed [ILLUSTRATION FOR FIGURE 6b OMITTED].