Effect of Cannibalism on the Growth and Development of<i>Mallada basalis</i>(Neuroptera: Chrysopidae)

Ye, Jingwen; Xu, Qiang; Li, Zhigang; Lü, Xin; Han, Shichou

doi:10.1653/024.097.0311

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…Laboratory experiments have demonstrated the importance of larva–egg and larva–larva cannibalism in chrysopids (Duelli ; Ye et al . ), and laying eggs in batches or clusters has been interpreted as an adaptation enhancing larval cannibalism. This behaviour has been hypothesized as favouring the offspring's survival in fluctuating environments, where prey availability is unstable (Duelli ; Canard et al .…”

Section: Discussionmentioning

confidence: 99%

The hatching mechanism of 130‐million‐year‐old insects: an association of neonates, egg shells and egg bursters in Lebanese amber

et al. 2018

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Hatching is a pivotal moment in the life of most animals. Diverse chemical, behavioural and mechanical methods have evolved in metazoans to break the egg membranes. Among them, many arthropod and vertebrate embryos hatch using ephemeral, frequently convergent structures known as egg bursters. However, the evolutionary processes by which hatching mechanisms and related embryonic structures became established in deep time are poorly understood due to a nearly complete absence from the fossil record. Herein we describe an exceptional c. 130-millionyear-old association in Lebanese amber composed of multiple neonate green lacewing larvae, Tragichrysa ovoruptora gen. et sp. nov. (Neuroptera, Chrysopoidea), and conspecific egg remains. Egg bursters with a serrated blade bearing a short process are attached to three longitudinally split egg shells. Embryos of extant green lacewing relatives (Chrysopidae) utilize this egg burster morphotype to open a vertical slit on the egg, after which the burster is moulted and left joined to the empty egg shell. Additionally, the new larval species has extremely elongate dorsal tubercles, an adaptation to carry exogenous debris for protection and camouflage also known from other Cretaceous chrysopoids but absent in modern relatives. The present discovery demonstrates that the hatching mechanism of modern green lacewings was established in the chrysopoid lineage by the Early Cretaceous and proves through direct fossil evidence how some morphological traits related to hatching and linked behaviours, at least in insect embryos, have been subject to a high degree of evolutionary conservatism.

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Section: Discussionmentioning

confidence: 99%

The hatching mechanism of 130‐million‐year‐old insects: an association of neonates, egg shells and egg bursters in Lebanese amber

et al. 2018

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“…Cannibals can gain direct benefits that include reduced competition and added acquisition of rich nutrients, which is more conducive to improving their own survival and reproduction [ 3 , 25 ]. In Mallada basalis (Walker), cannibalism can enhance the development and fecundity [ 26 ]. However, it may also increase the risk of pathogen and parasite transmission between populations [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Larval Crowding Did Not Enhance Adult Migration Propensity in Spodoptera frugiperda

Meng

Jiang

et al. 2022

Insects

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Reproduction and flight are two major adaptive strategies to cope with environmental stress in migratory insects. However, research on density-mediated flight and reproduction in the global migratory agricultural pest Spodoptera frugiperda is lacking. In this study, flight and reproductive performances in response to larval crowding were investigated in S. frugiperda. We found that larval crowding significantly reduced the pupal and body weights of S. frugiperda. Adults reared under the highest density of 30 larvae/jar had the minimum wing expansion, which was significantly smaller than that of larvae reared under solitary conditions. Larval crowding also significantly increased the pre-oviposition period (POP) and period of first oviposition (PFO) but decreased the lifetime fecundity, flight duration and flight distance. Our results showed that S. frugiperda reared under solitary conditions exhibited higher pupal and body weights and stronger reproductive and flight capacities than those reared under high-density conditions. Larval crowding did not enhance the migration propensity in S. frugiperda adults. In conclusion, larval crowding may not be a major factor affecting FAW migration due to high levels of cannibalism. These findings provide new insights into the population dynamics of S. frugiperda under larval crowding conditions.

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The frequency of cannibalism by Spodoptera frugiperda larvae determines their probability of surviving food deprivation

Zhou

et al. 2021

J Pest Sci

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Effect of Cannibalism on the Growth and Development ofMallada basalis(Neuroptera: Chrysopidae)

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 6 publications

References 22 publications

The hatching mechanism of 130‐million‐year‐old insects: an association of neonates, egg shells and egg bursters in Lebanese amber

The hatching mechanism of 130‐million‐year‐old insects: an association of neonates, egg shells and egg bursters in Lebanese amber

Larval Crowding Did Not Enhance Adult Migration Propensity in Spodoptera frugiperda

The frequency of cannibalism by Spodoptera frugiperda larvae determines their probability of surviving food deprivation

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