DOI: 10.1111/gcb.12142
论文题名: Interactive direct and plant-mediated effects of elevated atmospheric [CO2] and temperature on a eucalypt-feeding insect herbivore
作者: Murray T.J. ; Ellsworth D.S. ; Tissue D.T. ; Riegler M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 5 起始页码: 1407
结束页码: 1416
语种: 英语
英文关键词: Climate change
; Cup-moth
; Eucalyptus
; Herbivory
; Lepidoptera
; Plant-insect interactions
Scopus关键词: carbon dioxide
; air temperature
; carbon dioxide
; climate change
; climate effect
; feeding behavior
; herbivore
; herbivory
; insect
; physiology
; plant-insect interaction
; temperature effect
; animal
; article
; climate change
; drug effect
; Eucalyptus
; feeding behavior
; growth, development and aging
; heat
; herbivory
; insect
; larva
; metabolism
; moth
; oocyte
; plant leaf
; Animals
; Carbon Dioxide
; Climate Change
; Eucalyptus
; Feeding Behavior
; Herbivory
; Hot Temperature
; Larva
; Moths
; Ovum
; Plant Leaves
; Pupa
; Eucalyptus
; Eucalyptus tereticornis
; Hexapoda
; Lepidoptera
; Limacodidae
英文摘要: Understanding the direct and indirect effects of elevated [CO2] and temperature on insect herbivores and how these factors interact are essential to predict ecosystem-level responses to climate change scenarios. In three concurrent glasshouse experiments, we measured both the individual and interactive effects of elevated [CO2] and temperature on foliar quality. We also assessed the interactions between their direct and plant-mediated effects on the development of an insect herbivore of eucalypts. Eucalyptus tereticornis saplings were grown at ambient or elevated [CO2] (400 and 650 μmol mol-1 respectively) and ambient or elevated ( + 4 °C) temperature for 10 months. Doratifera quadriguttata (Lepidoptera: Limacodidae) larvae were feeding directly on these trees, on their excised leaves in a separate glasshouse, or on excised field-grown leaves within the temperature and [CO2] controlled glasshouse. To allow insect gender to be determined and to ensure that any sex-specific developmental differences could be distinguished from treatment effects, insect development time and consumption were measured from egg hatch to pupation. No direct [CO2] effects on insects were observed. Elevated temperature accelerated larval development, but did not affect leaf consumption. Elevated [CO2] and temperature independently reduced foliar quality, slowing larval development and increasing consumption. Simultaneously increasing both [CO2] and temperature reduced these shifts in foliar quality, and negative effects on larval performance were subsequently ameliorated. Negative nutritional effects of elevated [CO2] and temperature were also independently outweighed by the direct positive effect of elevated temperature on larvae. Rising [CO2] and temperature are thus predicted to have interactive effects on foliar quality that affect eucalypt-feeding insects. However, the ecological consequences of these interactions will depend on the magnitude of concurrent temperature rise and its direct effects on insect physiology and feeding behaviour. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62451
Appears in Collections: 影响、适应和脆弱性
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作者单位: Hawkesbury Institute for the Environment, University of Western Sydney, Locked Bag 1797, Penrith, NSW, 2751, Australia; New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
Recommended Citation:
Murray T.J.,Ellsworth D.S.,Tissue D.T.,et al. Interactive direct and plant-mediated effects of elevated atmospheric [CO2] and temperature on a eucalypt-feeding insect herbivore[J]. Global Change Biology,2013-01-01,19(5)