Effects of constant and fluctuating temperatures on development and reproduction of Megoura crassicauda and Aphis craccivora (Hemiptera: Aphididae)

Cheng, Li-Yuan; Chen, Yan; Chen, Zhenzhen; YongYu, Xu

doi:10.33338/ef.70036

Cited by 4 publications

(9 citation statements)

References 40 publications

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“…Compared to the constant temperature treatment, pre-adult development of R. pedestris was similar, but female longevity and oviposition period were significantly longer in fluctuating temperature treatments. These findings are partially consistent with the results of earlier studies on Bicyclus anynana [43], Helicoverpa armigera [44], Tetranychus urticae, Phytoseiulus persimilis, Neoseiulus californicus [45], and Megoura crassicauda and Aphis craccivora [46].…”

Section: Discussionsupporting

confidence: 92%

Population Parameters and Growth of Riptortus pedestris (Fabricius) (Hemiptera: Alydidae) under Fluctuating Temperature

Ahn¹,

Choi²

2022

Insects

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In this study, we determined the influence of fluctuating temperatures on the development and fecundity of the bean bug Riptortus pedestris (Fabricius) (Hemiptera: Alydidae) by collecting life table data for individuals exposed at a constant temperature (24 °C) and three fluctuating temperatures (24 ± 4 °C, 24 ± 6 °C, and 24 ± 8 °C). The raw life history data were analyzed using an age-stage, two-sex life table to take into account the viable development rate among individuals. Based on these analyses, the population projections enabled us to determine the stage structure and variability of population growth under different temperature treatments. Our results revealed shorter periods of immature development and a higher pre-adult survival rate at 24 ± 6 °C than under the other assessed temperature conditions. Furthermore, significant reductions in female longevity were recorded at 24 °C, whereas the fecundity, net reproductive rate, and intrinsic and finite rates of increase were highest at 24 ± 6 °C. These findings reveal that fluctuating temperatures have a positive influence on the life history traits of R. pedestris and indicate that observations made under constant temperatures may not explain sufficiently enough the temperature dependent biological performances of pests in the field.

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Section: Discussionsupporting

confidence: 92%

Population Parameters and Growth of Riptortus pedestris (Fabricius) (Hemiptera: Alydidae) under Fluctuating Temperature

Ahn¹,

Choi²

2022

Insects

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“…However, MT treatments significantly increased the intrinsic rate of increase of R. padi . Similar heat stress responses have been observed in Aphis glycines (Kikuchi et al ., ), Acyrthosiphon gossypii (Gao et al ., ), Megoura crassicauda , and Aphis craccivora (Cheng et al ., ). Extreme temperatures can impair multiple physiological processes in organisms (Ohtaka & Ishikawa, ; Davis et al ., ; Auad et al ., ).…”

Section: Discussionmentioning

confidence: 99%

“…The life‐history traits of R. maidis (Kuo et al ., ) and Aphis gossypii (Parajulee, ) were variable at mean temperatures of 10, 15, 20, 25, 30, and 35 °C. In recent years, an increasing number of researchers have found that fluctuating temperature treatments should be considered in evaluating the response of aphids to heat stress (Davis et al ., ; Jeffs & Leather, ; Cheng et al ., ; Gao et al ., ).…”

Section: Introductionmentioning

confidence: 97%

“…For instance, the development, fecundity and longevity of the wheat aphid, R. padi, Sitobion avenae (Fabricius) and Metopolophium dirhodum (Walker) were affected by mean high temperatures of 27.5 and 30 ∘ C (Asin & Pons, 2001). The life-history traits of R. maidis (Kuo et al, 2006) and Aphis gossypii (Parajulee, 2007) were variable at mean temperatures of 10, 15, 20, 25, 30, and 35 ∘ C. In recent years, an increasing number of researchers have found that fluctuating temperature treatments should be considered in evaluating the response of aphids to heat stress (Davis et al, 2006;Jeffs & Leather, 2014;Cheng et al, 2018;Gao et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effects of variable maternal temperature on offspring development and reproduction of Rhopalosiphum padi, a serious global pest of wheat

Peng

Zhao

Guo

et al. 2019

Ecological Entomology

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1. Global warming is occurring at an unprecedented rate. Information about how variable temperature affects insect life‐history traits is still scarce. 2. The current study first evaluated the effects of two variable‐temperature treatments [high‐temperature‐variation (HT) treatments and mild‐temperature‐variation (MT) treatments] on the life‐history traits of a maternal generation (F0) of Rhopalosiphum padi, a serious global pest, using a constant normal‐temperature (NT) treatment as a control. Following this, the life‐history traits of the offspring generation (F1) under the NT, MT and HT scenarios were analysed. 3. The total developmental duration of the aphid F0 generation was significantly shortened by MT treatments, while it was significantly increased by HT treatments. Adult longevity and the fecundity of F0 were significantly decreased by HT treatments compared with those in the MT and NT treatments, whereas no significant difference was found between the latter two treatments. The HT treatments applied to the F0 generation significantly prolonged the total developmental duration of the F1 generation. The offspring adult longevity was not affected by the mothers' temperature experience. The offspring fecundity was significantly increased when the F0 generation experienced MT treatments. The intrinsic rate of increase (rm) was significantly decreased when the F0 generation experienced an HT scenario. However, the MT scenario experienced by the F0 generation did not significantly affect the rm of their offspring. 4. The results will provide new insights into the effects of variable maternal temperature on the individual development and population dynamics of offspring under a global warming scenario.

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“…Numerous studies demonstrate how insect survival, morphology, fecundity, and the development period are affected by temperature fluctuations, either positively or negatively, eventually affecting species interactions and the provision of ecosystem services [30][31][32][33]. For example, Bayu et al [34] showed that the intrinsic rate of population increase in the spider mite Tetranychus urticae was higher under a fluctuating 15 • C (±10 • C) thermal regime, compared to a constant 15 • C, but that the temperature fluctuation was not always favorable for other traits or other regimes.…”

Section: Introductionmentioning

confidence: 99%

Effects of Constant versus Fluctuating Temperatures on Fitness Indicators of the Aphid Dysaphis plantaginea and the Parasitoid Aphidius matricariae

Tougeron

Ferrais

Renard

et al. 2021

Insects

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Testing fluctuating rather than constant temperatures is likely to produce more realistic datasets, as they are ecologically more similar to what arthropods experience in nature. In this study, we evaluated the impact of three constant thermal regimes (7, 12, and 17 °C) and one fluctuating thermal regime (7–17 °C with a mean of 12 °C) on fitness indicators in the rosy apple aphid Dysaphis plantaginea, a major pest of apple orchards, and the parasitoid Aphidius matricariae, one of its natural enemies used in mass release biological control strategies. For some—but not all—traits, the fluctuating 7–17 °C regime was beneficial to insects compared to the constant 12 °C regime. Both aphid and parasitoid development times were shortened under the fluctuating regime, and there was a clear trend towards an increased longevity under the fluctuating regime. The fecundity, mass, and size were affected by the mean temperature, but only the mass of aphids was higher at 7–17 °C than at a constant 12 °C. Parasitism rates, but not emergence rates, were higher under the fluctuating regime than under the constant 12 °C regime. Results are discussed within the framework of insect thermal ecology and Jensen’s inequality. We conclude that incorporating thermal fluctuations in ecological studies could allow for the more accurate consideration of how temperature affects host–parasitoid interactions and insect responses to temperature change over time.

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Effects of constant and fluctuating temperatures on development and reproduction of Megoura crassicauda and Aphis craccivora (Hemiptera: Aphididae)

Cited by 4 publications

References 40 publications

Population Parameters and Growth of Riptortus pedestris (Fabricius) (Hemiptera: Alydidae) under Fluctuating Temperature

Population Parameters and Growth of Riptortus pedestris (Fabricius) (Hemiptera: Alydidae) under Fluctuating Temperature

Effects of variable maternal temperature on offspring development and reproduction of Rhopalosiphum padi, a serious global pest of wheat

Effects of Constant versus Fluctuating Temperatures on Fitness Indicators of the Aphid Dysaphis plantaginea and the Parasitoid Aphidius matricariae

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