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Demography and population fitness traits of Spodoptera frugiperda (Lepidoptera: Noctuidae) under elevated temperature and CO2 levels
The demography and population fitness of fall armyworm, Spodoptera frugiperda was studied by comparing ambient (31 °C + 415 ppm) with elevated (33 °C + 460 ppm and 35 °C + 520 ppm) environmental conditions. The experiments with temperature and CO 2 levels were conducted by using Soil Plant Atmospher...
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Published in: | International journal of tropical insect science 2023-12, Vol.43 (6), p.2189-2200 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | The demography and population fitness of fall armyworm,
Spodoptera frugiperda
was studied by comparing ambient (31 °C + 415 ppm) with elevated (33 °C + 460 ppm and 35 °C + 520 ppm) environmental conditions. The experiments with temperature and CO
2
levels were conducted by using Soil Plant Atmosphere Research (SPAR) chamber. The life history data of
S. frugiperda
was analyzed by age-stage, two-sex life table. Results revealed that developmental time and age-stage-specific survival rate (
s
xj
) of
S. frugiperda
at age (
x
) and stage (
j
) reduced with the increase in temperature and CO
2
levels. The fecundity rate and age-stage-specific reproductive rate (
v
xj
) at age
x
and stage
j
were recorded highest at 33 °C + 460 ppm but it was significantly reduced at 35 °C + 520 ppm.
S. frugiperda
reared under an elevated level of 33 °C + 460 ppm showed the highest net reproductive rate (
R
0
), intrinsic (
r
m
), and finite rate of increase (
λ
) when compared to ambient. However, these fitness traits decreased at the elevated level of 35 °C + 520 ppm. These results suggest that the fitness traits of
S. frugiperda
were altered concerning the future scenario of global climate change under increasing temperature and CO
2
levels. |
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ISSN: | 1742-7592 1742-7584 1742-7592 |
DOI: | 10.1007/s42690-023-01122-3 |