Article Dans Une Revue Bulletin of Entomological Research Année : 2023

Egg development and viability in the laboratory of Cyclocephala species (Coleoptera: Melolonthidae: Dynastinae)

Résumé

Cyclocephala species perform key functional roles in both natural and agricultural systems, such as the cycling of organic matter and pollination, whereas also being known as destructive pests. As such, the identification of biological parameters is crucial for defining strategies for their conservation and efficient pest management. We daily monitored egg parameters (e.g. initial-1st day after oviposition-and final-last day before hatching-egg masses, incubation durations, egg mass increase, and viability) of three species of Cyclocephala native to the Brazilian Atlantic Foresta biodiversity hotspot. Our findings provide novel empirical evidence showing i) a positive correlation between egg mass and incubation time, ii) idiosyncratic characteristics on egg development, and iii) a negative involuntary effect of manipulation on egg development and viability. Thus, for the successful breeding and rearing of Cyclocephala spp., one must be aware of the importance of egg conditions according to each focal species. Our analyses present a quantitative understanding of the egg phase and can assist in refining strategies for ovicidal 2 activity and pest management of Cyclocephala in agriculture systems. Moreover, they can provide a basis for new studies related to captivity breeding, pollinator management, and developmental biology for biodiversity conservation.

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hal-03867942 , version 1 (23-11-2022)

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Thamyrys Bezerra De Souza, Larissa Simões Corrêa De Albuquerque, Luciana Iannuzzi, Fábio Correia Costa, Marc Gibernau, et al.. Egg development and viability in the laboratory of Cyclocephala species (Coleoptera: Melolonthidae: Dynastinae). Bulletin of Entomological Research, 2023, 113 (1), pp.118-125. ⟨10.1017/S0007485322000384⟩. ⟨hal-03867942⟩
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