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Descripción
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| Global environmental change is largely due to five abiotic drivers: climate warming, drought, elevated carbon dioxide (CO2), tropospheric ozone pollution, and increased nitrogen inputs. Among these factors, the concentration of CO2, the principal greenhouse gas which contributes to global warming, has increased due to human activity from 278 ppm in 1750 to over 400 ppm in 2018. According to the RCP6.0 future climate scenario proposed by the Intergovernmental Panel on Climate Change, atmospheric CO2 concentration is likely to continue increasing to 720-1000 ppm in 2100. This will lead to a change in surface temperature of more than 2ºC since the beginning of the 21st century. Climate change is recognized as a considerable risk to agriculture worldwide, due to the direct impacts on crop production, yield stability and consequently food security. Pests and diseases are responsible for reducing plant production by 25-40%. Therefore, to increase future food stability, management of pests and diseases needs to be improved. We investigated the effects of elevated CO2 (eCO2) and temperature (eT) on the interactions between wheat; Barley yellow dwarf virus; the bird cherry-oat aphid Rhopalosiphum padi Linnaeus (Hemiptera: Aphididae), an important virus vector; and its natural enemy, the parasitic wasp Aphidius colemani Viereck (Hymenoptera: Braconidae). Aphid life history, parasitoid performance and plant physiology were examined under two different climate scenarios, current climate (aCO2 = 400 ppm, aT = 20ºC), and future climate (eCO2 = 800 ppm, eT =22ºC). Our findings emphasize the complexity of the interactions between plants, aphids, parasitoids and viruses under future climate with implications for plant disease epidemiology and crop production. | |
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Internacional
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Si |
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Nombre congreso
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Australian Entomological Society- 49th AGM & Scientific Conference |
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Tipo de participación
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960 |
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Lugar del congreso
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Alice Springs, Australia |
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Revisores
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Si |
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ISBN o ISSN
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000-0-00-000000-0 |
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DOI
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Fecha inicio congreso
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23/09/2018 |
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Fecha fin congreso
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26/09/2018 |
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Desde la página
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94 |
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Hasta la página
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94 |
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Título de las actas
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Australian Entomological Society 49th AGM & Scientific Conference 23 ? 26 September 2018 Alice Springs Convention Centre Alice Springs Insects as the centre of our world |