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Relationships Between Attack and Escape Rates, Cannibalism, and Intraguild Predation in Larvae of Two Predatory Ladybirds
- H. Yasuda, T. Kikuchi, P. Kindlmann, Satoru Sato
- Biology, Environmental ScienceJournal of Insect Behavior
- 1 May 2001
The aggressive behavior of H. axyridis, in particular, of the third and fourth instars, negatively affects the larval survival of C. septempunctata, and may contribute to the dominance in ladybird assemblages and its displacement of other ladybird species in several places in the world.
Asymmetric larval interactions between introduced and indigenous ladybirds in North America
The results suggest that HA more than CS may represent a threat to indigenous ladybirds as an intraguild predator, and that IGP in turn may play a stronger role for HA than for C. septempunctata in promoting the successful invasion of North America.
Effect of cannibalism and predation on the larval performance of two ladybird beetles
Both intraguild predation by the aggressive larvae of H. axyridis and the polyphagous food habit of this species may account for its dominance in ladybird assemblages and its displacing other ladybird beetles in several places in the world.
Effects of indigenous ladybird species (Coleoptera: Coccinellidae) on the survival of an exotic species in relation to prey abundance
The nature and relative strengths of interactions between indigenous and exotic ladybird species differed in relation to prey availability and species involved, and under conditions of high prey abundance, the negative effect of interactions was limited to slower larval development of A. bipunctata in the presence of H. axyridis.
Effects of parasitized aphids (Homoptera: Aphididae) as food on larval performance of three predatory ladybirds (Coleoptera: Coccinellidae).
The effects of parasitized aphids as food on development, growth, and survival of fourth stadium larvae were assessed in three species of aphidophagous ladybirds, indicating that mummies were not a suitable food for the three species, in particular for C. septempunctata.
Effects of prey species and its density on larval performance of two species of hoverfly larvae, Episyrphus balteatus de Geer and Eupeodes corollae Fabricius (Diptera: Syrphidae)
Differences in the effects of prey species and its density on the larval performance of the two hoverflies are attributable to the differences in the range of food habit and body size.
Invasions by ladybugs, ladybirds, and other predatory beetles
This topic is addressed by focusing on invasive alien ladybird beetles (Coccinellidae) by making clear the potential of invasive alien predatory Coleoptera to disrupt invaded natural and agricultural ecosystems.
Life history response of a predatory ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), to food stress
The relationships between lifetime fecundity and female longevity suggested that for both food levels, there were two groups of individuals with one group showing a positive correlation and the other group a negative correlation between reproduction and longevity.
Effects of conspecific and heterospecific larval tracks on the oviposition behaviour of the predatory ladybird, Harmonia axyridis (Coleoptera: Coccinellidae)
The effect of the oviposition deterring pheromone (ODP) in the larval tracks of conspecific and heterospecific ladybirds on oviposition in Harmonia axyridis Pallas was studied in semi natural…
Effect of emigration on cannibalism and intraguild predation in aphidophagous ladybirds
The incidence and timing of emigration, cannibalism, and intraguild predation of larvae of three aphidophagous ladybirds, Harmonia axyridis Pallas, Coccinella septempunctata brucki Mulsan, and Propylea japonica Mulsant relative to the presence of prey was determined in the laboratory in single‐ and mixed‐species populations.