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A single hot event stimulates adult performance but reduces egg survival in the oriental fruit moth, Grapholitha molesta

Liang, Li-Na ; Zhang, Wei ; Ma, Gang ; Hoffmann, Ary A ; Ma, Chun-Sen Guedes, Raul Narciso Carvalho

PloS one, 2014-12, Vol.9 (12), p.e116339-e116339 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
A single hot event stimulates adult performance but reduces egg survival in the oriental fruit moth, Grapholitha molesta
Autor: Liang, Li-Na ; Zhang, Wei ; Ma, Gang ; Hoffmann, Ary A ; Ma, Chun-Sen
Guedes, Raul Narciso Carvalho
Assuntos: Adults ; Animal reproduction ; Animals ; Apples ; Behavior, Animal ; Biology ; Biology and Life Sciences ; Butterflies & moths ; Climate Change ; Climate effects ; Copulation ; Drosophila melanogaster ; Ecology and Environmental Sciences ; Eggs ; Exposure ; Extreme high temperatures ; Fecundity ; Female ; Females ; Fertility ; Fruits ; Global warming ; Hatching ; Health aspects ; Heat resistance ; Heat treatment ; Heat-Shock Response ; High temperature ; High temperatures ; Hormesis ; Hot Temperature ; Insects ; Laboratories ; Larva ; Lepidoptera ; Life history ; Life span ; Longevity ; Male ; Males ; Moths ; Moths - physiology ; Oviposition ; Ovum ; Plant diseases ; Plutella xylostella ; Population Dynamics ; Reproduction ; Studies ; Survival ; Tortricidae
É parte de: PloS one, 2014-12, Vol.9 (12), p.e116339-e116339
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Conceived and designed the experiments: WZ CSM. Performed the experiments: LNL. Analyzed the data: WZ LNL. Contributed reagents/materials/analysis tools: CSM. Wrote the paper: CSM WZ GM AAH LNL.
Competing Interests: The authors have declared that no competing interests exist.
Descrição: Climate warming is expected to increase the exposure of insects to hot events (involving a few hours at extreme high temperatures). These events are unlikely to cause widespread mortality but may modify population dynamics via impacting life history traits such as adult fecundity and egg hatching. These effects and their potential impact on population predictions are still largely unknown. In this study, we simulated a single hot event (maximum of 38°C lasting for 4 h) of a magnitude increasingly found under field conditions and examined its effect in the oriental fruit moth, Grapholitha molesta. This hot event had no impact on the survival of G. molesta adults, copulation periods or male longevity. However, the event increased female lifespan and the length of the oviposition period, leading to a potential increase in lifetime fecundity and suggesting hormesis. In contrast, exposure of males to this event markedly reduced the net reproductive value. Male heat treatment delayed the onset of oviposition in the females they mated with, as well as causing a decrease in the duration of oviposition period and lifetime fecundity. Both male and female stress also reduced egg hatch. Our findings of hormetic effects on female performance but concurrent detrimental effects on egg hatch suggest that hot events have unpredictable consequences on the population dynamics of this pest species with implications for likely effects associated with climate warming.
Editor: United States: Public Library of Science
Idioma: Inglês

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A single hot event stimulates adult performance but reduces egg survival in the oriental fruit moth, Grapholitha molesta

Liang, Li-Na ; Zhang, Wei ; Ma, Gang ; Hoffmann, Ary A ; Ma, Chun-Sen Guedes, Raul Narciso Carvalho

United States: Public Library of Science

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