Interactive effects of elevated CO2 and temperature on the leaf‐miner Dialectica scalariella Zeller (Lepidoptera: Gracillariidae) in Paterson's Curse, Echium plantagineum (Boraginaceae)

Johns, C.V.; Hughes, Lesley

doi:10.1046/j.1365-2486.2002.00462.x

Cited by 94 publications

(72 citation statements)

References 39 publications

(57 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…miners) may well be affected by elevated CO 2 -induced reductions in foliage quality and an elevated growth temperature in other ways. In an herbaceous plant system, declines in leaf quality at elevated CO 2 dampened the effects of more rapid development of larvae at an elevated temperature (Johns and Hughes 2002). Our observed reduction in development time supports one of our original predictions, i.e.…”

Section: Discussionsupporting

confidence: 86%

“…We observed little effect on insect performance during a 3-to 6-day feeding period. Although the aforementioned studies on whole leaf-feeding insects demonstrate no interactive effects of CO 2 and temperature, a study with a leaf mining insect feeding on a herbaceous plant species demonstrated that CO 2 enrichment and elevated temperature can interactively negatively impact larval survivorship and adult weight (Johns and Hughes 2002).…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Development of gypsy moth larvae feeding on red maple saplings at elevated CO 2 and temperature

2003

View full text Add to dashboard Cite

Predicted increases in atmospheric CO(2) and global mean temperature may alter important plant-insect associations due to the direct effects of temperature on insect development and the indirect effects of elevated temperature and CO(2) enrichment on phytochemicals important for insect success. We investigated the effects of CO(2) and temperature on the interaction between gypsy moth (Lymantria dispar L.) larvae and red maple (Acer rubrum L.) saplings by bagging first instar larvae within open-top chambers at four CO(2)/temperature treatments: (1) ambient temperature, ambient CO(2), (2) ambient temperature, elevated CO(2) (+300 microl l(-1) CO(2)), (3) elevated temperature (+3.5 degrees C), ambient CO(2), and (4) elevated temperature, elevated CO(2). Larvae were reared to pupation and leaf samples taken biweekly to determine levels of total N, water, non-structural carbohydrates, and an estimate of defensive phenolic compounds in three age classes of foliage: (1) immature, (2) mid-mature and (3) mature. Elevated growth temperature marginally reduced (P <0.1) leaf N and significantly reduced ( P <0.05) leaf water across CO(2) treatments in mature leaves, whereas leaves grown at elevated CO(2) concentration had a significant decrease in leaf N and a significant increase in the ratio of starch:N and total non-structural carbohydrates:N. Leaf N and water decreased and starch:N and total non-structural carbohydrates:N ratios increased as leaves aged. Phenolics were unaffected by CO(2) or temperature treatment. There were no interactive effects of CO(2) and temperature on any phytochemical measure. Gypsy moth larvae reached pupation earlier at the elevated temperature (female =8 days, P <0.07; male =7.5 days, P <0.03), whereas mortality and pupal fresh weight of insects were unrelated to either CO(2), temperature or their interaction. Our data show that CO(2) or temperature-induced alterations in leaf constituents had no effect on insect performance; instead, the long-term exposure to a 3.5 degrees C increase in temperature shortened insect development but had no effect on pupal weight. It appears that in some tree-herbivorous insect systems the direct effects of an increased global mean temperature may have greater consequences for altering plant-insect interactions than the indirect effects of an increased temperature or CO(2) concentration on leaf constituents.

show abstract

Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 97%

Development of gypsy moth larvae feeding on red maple saplings at elevated CO 2 and temperature

2003

View full text Add to dashboard Cite

show abstract

“…Murray et al (2013a) observed that the direct positive effect of temperature was able to ameliorate the negative indirect effect of C E on insect performance. Johns and Hughes (2002) observed a partial mitigation of C Einduced plant-mediated effects as a result of direct temperature effects. In our study, no interactive effects of C E × T E were observed with P. atomaria; although developmental time was reduced as a direct result of T E , it did not compensate fully for the increased developmental time attributed to the plant-mediated effects at C E .…”

Section: Discussionmentioning

confidence: 91%

Responses of leaf beetle larvae to elevated [CO2] and temperature depend on Eucalyptus species

et al. 2014

View full text Add to dashboard Cite

It is essential to understand the combined effects of elevated [CO2] and temperature on insect herbivores when attempting to forecast climate change responses of diverse ecosystems. Plant species differ in foliar chemistry, and this may result in idiosyncratic plant-mediated responses of insect herbivores at elevated [CO2] and temperature. We measured the response of the eucalypt leaf beetle Paropsis atomaria (Coleoptera: Chrysomelidae) feeding on Eucalyptus tereticornis and Eucalyptus robusta. Seedlings were grown at ambient (400 µmol mol(-1)) or elevated (640 µmol mol(-1)) [CO2] and ambient (26/18 °C day/night) or elevated (ambient + 4 °C) temperature in a greenhouse for 7 months. Larvae fed on flush leaves from egg hatch to pupation while being directly exposed to these conditions. Elevated [CO2] reduced foliar [N] and [P], while it increased total nonstructural carbohydrates and the C:N ratio. Elevated temperature increased foliar [N] in E. robusta but not E. tereticornis. Plant-mediated effects of elevated [CO2] reduced female pupal weight and increased developmental time and leaf consumption. Larval survival at elevated [CO2] was impacted differently by the two host plant species; survival increased on E. robusta while it decreased on E. tereticornis. Elevated temperature accelerated larval development but did not impact other insect parameters. We did not detect a CO2 × temperature interaction, suggesting that elevated temperature as a combined direct and plant-mediated effect may not be able to ameliorate the negative plant-mediated effects of elevated [CO2] on insect herbivores. Our study highlighted host-plant-specific responses of insect herbivores to climate change factors that resulted in host-plant-specific survival.

show abstract

“…Many studies have shown the importance of tritrophic interactions when evaluating the effect of environmental changes (e.g. Bezemer et al, 1998;Coley, 1998;Johns and Hughes, 2002;Hamilton et al, 2004;Menéndez, 2007;Thuiller, 2007;Battisti, 2008).…”

Section: Introductionmentioning

confidence: 99%

The spatial distribution of Hymenoptera parasitoids in a forest reserve in Central Amazonia, Manaus, AM, Brazil

Querino

Couceiro

Queiroz³

et al. 2011

Braz. J. Biol.

View full text Add to dashboard Cite

Parasitoids are of great importance to forest ecosystems due to their ecological role in the regulation of the population of other insects. The species richness and abundance of parasitoids in the forest canopy and understory, both on the borders and in the interior of a tropical forest reserve in Central Amazonia were investigated. For a 12-month period, specimen collections were made every 15 days from suspended traps placed in the forest canopy and in the understory strata, both on the border and in the interior of forest areas. A total of 12,835 Hymenoptera parasitoids from 23 families were acquired. Braconidae, Diapriidae, Mymaridae, Eulophidae, and Scelionidae were the most represented in the area and strata samples. The results indicate that there were no significant differences in the species richness or abundance of Hymenoptera between the forest borders and the inner forest. The data does show that the presence of Hymenoptera is significantly greater in the understory in both the border and interior areas than in the canopy (vertical stratification). Aphelinidae and Ceraphronidae were significantly associated with the inner forest, while the other seven families with the border of the reserve. The abundance of Hymenoptera parasitoids presented seasonal variations during the year related to the rainy and dry seasons.Keywords: Hymenoptera, parasitoids, Amazonia, stratification, tropical forest. Distribuição espacial de Hymenoptera parasitoides em uma reserva florestal na Amazônia Central, Manaus, AM, Brasil ResumoOs parasitoides são de grande importância nos ecossistemas florestais pelo seu papel ecológico na regulação da população de outros insetos. Foram investigadas a riqueza e a abundância de parasitoides no dossel e sub-bosque, tanto na borda como no interior de uma reserva florestal tropical na Amazônia Central. Durante 12 meses, foram realizadas coletas quinzenais por meio de armadilhas suspensas instaladas no dossel e subdossel da borda e interior da floresta. Foi contabilizado um total de 12.835 Hymenoptera parasitoides, distribuídos em 23 famílias, sendo Braconidae, Diapriidae, Mymaridae, Eulophidae e Scelionidae as famílias mais representativas nos locais e estratos amostrados. Os resultados indicaram não haver diferenças significativas na riqueza ou na abundância de Hymenoptera entre borda e interior da floresta. Os dados de riqueza e abundância de Hymenoptera são significativamente maiores no sub-bosque das duas áreas (interior e borda) em relação ao dossel (estratificação vertical). Aphelinidae e Ceraphronidae foram associadas significativamente ao interior da floresta; outras sete famílias foram relacionadas significativamente à borda da reserva. A abundância de Hymenoptera parasitoides apresentou efeito de sazonalidade durante o ano, relacionada ao período de seca e chuvas.

show abstract

Interactive effects of elevated CO₂ and temperature on the leaf‐miner Dialectica scalariella Zeller (Lepidoptera: Gracillariidae) in Paterson's Curse, Echium plantagineum (Boraginaceae)

Cited by 94 publications

References 39 publications

Development of gypsy moth larvae feeding on red maple saplings at elevated CO 2 and temperature

Development of gypsy moth larvae feeding on red maple saplings at elevated CO 2 and temperature

Responses of leaf beetle larvae to elevated [CO2] and temperature depend on Eucalyptus species

The spatial distribution of Hymenoptera parasitoids in a forest reserve in Central Amazonia, Manaus, AM, Brazil

Contact Info

Product

Resources

About