Thermal Effects on the Population Parameters and Growth of Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae)

Ahn, Jeong Joon; Cho, Jum Rae; Kim, Jeong‐Hwan; Seo, Bo Yoon

doi:10.3390/insects11080481

Cited by 14 publications

(7 citation statements)

References 51 publications

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“…The intrinsic rate of increase includes contributions of age of initial reproduction, the peak of reproduction, length of the reproductive period, and the survival rate of the population. Population parameters are principal demographic parameters and are particularly useful when predicting the growth potential of insect populations [45,[58][59][60][61][62][63]. Based on the intrinsic rate of increase values obtained in the present study, we established that fluctuating temperatures have different effects on R. pedestris development and reproduction, dependent on the ranges of temperature fluctuation to which these bugs were exposed.…”

Section: Discussionmentioning

confidence: 62%

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: Discussionmentioning

confidence: 62%

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

Ahn¹,

Choi²

2022

Insects

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“…Temperature affects the development and survival of insects [ 29 , 30 ]. This study found that the hatching rate of CPB eggs at 27 °C is 91%, which is consistent with previous studies [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

“…It shows that short-term high temperature has an adverse effect on the egg production of CPB adults. Demographic parameters can be used to predict population growth: the intrinsic rate of increase reflects the growth ability of the population and can be used to measure the trend of population growth and decline at that time or in the future [ 29 , 33 ]. In this experiment, the intrinsic rate of increase in CPB at 27 °C was 0.16, which was significantly higher than repeated exposure at 35 °C and 39 °C, indicating that repeated short-term high temperature was not conducive to the growth of CPB population.…”

Section: Discussionmentioning

confidence: 99%

Effects of Repeated Short-Term Heat Exposure on Life History Traits of Colorado Potato Beetle

Liao

Liu

2022

Insects

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The Colorado potato beetle Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) is an internationally recognized destructive pest which has caused serious losses to the potato industry. To clarify the impact of repeated short-term heat exposure on CPB egg hatching and adult fecundity under climate change, CPB eggs and adults were treated with repeated short-term heat exposure in this study. We found that the hatching rate of CPB eggs, the total number of eggs laid per female, the oviposition period, the intrinsic rate of population increase (rm), finite rate of increase (λ), and the net reproductive rate (R0) of CPBs decreased with increasing temperature. The hatching rate and fecundity of CPBs were significantly lower than those of control (CK) after repeated short-term heat exposure. Our research has found that repeated short-term heat exposure is not conducive to the development and reproduction of CPBs.

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“…The effect of temperature on aphids has been reported under laboratory conditions with respect to some host plants. The optimum temperature for the growth and development of grain aphids, Sitobion avenae, is 15-25 • C, at which the highest intrinsic growth rate (r m ) results (Ahn et al, 2020). The highest r m and finite rate of increase in Acyrthosiphon pisum (Harris) (Hemiptera: Aphidoidea) were observed at 25 • C (Luis and Xavier, 2001).…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Temperatures on the Development and Reproduction of Sitobion miscanthi From Six Different Regions in China

Sun

Tan

et al. 2022

Front. Ecol. Evol.

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The increase in temperature caused by global warming has greatly impacted plant growth and pest population dynamics worldwide, especially for wheat aphids. In this study, Sitobion miscanthi individuals from six geographic populations located in different wheat-producing areas in China were compared with regard to their growth, development, survival, and reproductive under different temperature conditions (17, 22 and 27°C). A population life-table analysis and a correlation analysis between geographic factors and S. miscanthi longevity or fecundity were also performed. Temperature significantly affected the nymphal development duration (NDD), the adult longevity (ALY) and the fecundity (AFY) of the aphids, however, latitude can only affect the NDD and ALY. There is an obvious interaction between temperature and latitude on the NDD, ALY, and AFY. The NDD in the three northern populations was significantly shorter than that in the southern populations. The ALY in northern populations was significantly longer than that in southern populations at different temperatures. Except for Yinchuan population was no significantly different under different degrees, the ALY of other populations was significantly shortened at 27°C. The AFY of northern populations was significantly lower than that of southern populations at 22°C, while significantly higher at 27°C. With the increase of temperature, the fecundity of northern population gradually decreased from 17 to 22°C, while the southern population suddenly decreased at 27°C. The curves of survival rate (sxj) in southern populations were significantly shorter than that of northern population. Especially the populations in Suzhou and Wuhan, in which the survival rate decreased rapidly at 27°C. Age-specific survival rate (lx) of southern populations began to decline rapidly on 15 days of age at 27°C, while those of northern populations were not significantly affected until on 20 days of age. The highest peaks of age-stage fecundity (fxj), age-specific fecundity (mx), and age-specific net maternity (lxmx) were occurred in northern populations. In addition, there was a positive correlation between latitude and longevity under the three degrees, however, only at 27°C, there was a positive correlation between latitude and fecundity. Our result proved that the higher reproductive rate of southern population requires aphids to live at the suitable ambient temperature, and aphid populations in the north have a wider ecological amplitude. The results will be helpful for predicting the potential aphid outbreaks in China’s main wheat areas under suitable conditions.

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Thermal Effects on the Population Parameters and Growth of Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae)

Cited by 14 publications

References 51 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 Repeated Short-Term Heat Exposure on Life History Traits of Colorado Potato Beetle

Effects of Different Temperatures on the Development and Reproduction of Sitobion miscanthi From Six Different Regions in China

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