Comments on the paper ‘Invariance of demographic parameters using total or viable eggs’

Chi, Hsin; Mou, De‐Fen; Lee, C.-C.; Smith, Cecil L.

doi:10.1111/jen.12225

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…1), as some percentage of the eggs laid are produced by young unmated females or females that are past their prime fertility and consequently produce infertile eggs 24 , Chi et al . 25 noted when unhatched eggs are included in the totals values employed for calculating life table parameters, the inclusion of population projections erroneously overestimates the population size, demonstrating that only the life table data based on hatched eggs will produce accurate and meaningful population parameters and reliable population projections.…”

Section: Discussionmentioning

confidence: 99%

Effects of elevated CO2 on the fitness and potential population damage of Helicoverpa armigera based on two-sex life table

Liu

Huang

Chi

et al. 2017

Sci Rep

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We evaluated the direct effects of three different atmospheric CO2 concentrations (380 ppm, 550 ppm and 750 ppm) on the population parameters of the cotton bollworm, Helicoverpa armigera fed an artificial diet. The life history and fitness of H. armigera were analyzed using an age-stage, two-sex life table. Our results showed significantly longer larval durations and lower female pupal weight under elevated CO2 than under ambient CO2. Additionally, the fecundity of H. armigera was lower under elevated CO2 than under ambient CO2. H. armigera reared under elevated CO2 conditions showed lower intrinsic and finite rates of increase but higher net consumption and finite consumption rates than H. armigera reared under ambient CO2 conditions. According to population projections, a much smaller total population size and reduced consumption capacities would be expected in an elevated CO2 atmosphere due to higher mortality and lower growth rate compared with ambient CO2 levels. These results indicate that the fitness of and potential damage caused by H. armigera would be affected by increased CO2 relative to ambient CO2 concentrations. Additional studies on the long-term direct and indirect effects of elevated CO2 levels on H. armigera are still needed.

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Section: Discussionmentioning

confidence: 99%

Effects of elevated CO2 on the fitness and potential population damage of Helicoverpa armigera based on two-sex life table

Liu

Huang

Chi

et al. 2017

Sci Rep

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Linking Life Table and Predation Rate for Biological Control: A Comparative Study ofEocanthecona furcellata(Hemiptera: Pentatomidae) Fed onSpodoptera litura(Lepidoptera: Noctuidae) andPlutella xylostella(Lepidoptera: Plutellidae)

Tuan¹,

Yeh²,

Atlıhan³

et al. 2015

J Econ Entomol

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To better understand the predator-prey relationship and to compare predation rates, we studied the life table and predation rate of the predator Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) when reared on two major crucifer pests, Spodoptera litura (F.) (Lepidoptera: Noctuidae) and Plutella xylostella L. (Lepidoptera: Plutellidae). The net reproductive rate, intrinsic rate of increase, finite rate, and net predation rates of E. furcellata reared on P. xylostella were 292.4 offspring, 0.1389 d(-1), 1.1490 d(-1), and 644.1 third instars of P. xylostella, respectively. These values are significantly higher than those reared on S. litura, i.e., 272.3 offspring, 0.1220 d(-1), 1.1298 d(-1), and 863.1 third instars of S. litura. To evaluate the predation potential of E. furcellata fed on P. xylostella and S. litura, we combined both the growth rate and predation rate to calculate the finite predation rate (ω); our results showed that E. furcellata is an effective predator of both S. litura (ω = 1.6029) and P. xylostella (ω = 1.4277).

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Indirect Effect of Elevated CO2 on Population Parameters and Growth of Agasicles hygrophila (Coleoptera: Chrysomelidae), a Biocontrol Agent of Alligatorweed (Amaranthaceae)

Shi

Ding

et al. 2019

Journal of Economic Entomology

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Comments on the paper ‘Invariance of demographic parameters using total or viable eggs’

Cited by 3 publications

References 5 publications

Effects of elevated CO2 on the fitness and potential population damage of Helicoverpa armigera based on two-sex life table

Effects of elevated CO2 on the fitness and potential population damage of Helicoverpa armigera based on two-sex life table

Linking Life Table and Predation Rate for Biological Control: A Comparative Study ofEocanthecona furcellata(Hemiptera: Pentatomidae) Fed onSpodoptera litura(Lepidoptera: Noctuidae) andPlutella xylostella(Lepidoptera: Plutellidae)

Indirect Effect of Elevated CO2 on Population Parameters and Growth of Agasicles hygrophila (Coleoptera: Chrysomelidae), a Biocontrol Agent of Alligatorweed (Amaranthaceae)

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