The effects of delayed mating on the fecundity of females of <i>Spodoptera littoralis</i> (Boisduval) (Lepidoptera: Noctuidae)

Ellis, Peggy E.; Steele, Gordon M.

doi:10.1017/s0007485300010592

Cited by 45 publications

(53 citation statements)

References 8 publications

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“…Nevertheless, as it has been shown for other species in the genus (Kehat & Gordon 1975;Ellis & Steele 1982;Rogers & Marti Jr. 1997), the analysis of results comparing longevity as a function of the number of copulations (Fig. 4) indicates that this is an important factor to be included in analyzes of longevity, especially considering the prolonged pre-oviposition and oviposition periods of the females that are not inseminated (Figs.…”

Section: Resultsmentioning

confidence: 73%

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Biotic potential and reproductive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory

Montezano¹,

Specht²,

Sosa–Gómez³

et al. 2013

Rev. Bras. entomol.

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ABSTRACT. Biotic potential and reprodutcive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory: This study aimed to evaluate the biotic potential and reproductive parameters of Spodoptera eridania (Stoll, 1782) under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase). The longevity, pre-, post-and oviposition periods, fecundity and fertility of 15 couples was evaluated. The longevity of females (10.80 days) was not significantly higher than those of males (9.27 days). The mean durations of the pre, post and oviposition periods were 2.067, 0.600 and 8.133 days, respectively. The mean fecundity per female was 1,398 eggs and the mean fertility was 1,367.50 larvae. On average, females copulated 1.133 times. A strong positive correlation was observed between the number of mating and fecundity (r = 0.881, P <0.001). However a strong negative correlation was observed between the number of copulations and the duration of the pre-oviposition period (r = -0.826, P = 0.002) and longevity (r = -0.823, P = 0.001). The biotic potential of S. eridania was estimated at 1.894 x 10 25 individuals/female/year. The net reproductive rate (Ro) was 560.531 times per generation and the mean generation time (T) was 35.807 days. The intrinsic rate of increase (rm) was 0.177, with a finite rate of increase (l) of 1.193, per week.

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Section: Resultsmentioning

confidence: 73%

“…Likewise, to avoid the effects of the adult age on their capacity to copulate (Kehat & Gordon 1975;Ellis & Steele 1982;Rogers & Marti Jr.1994), the couples were formed with adults which emerged on the same date.…”

Section: Methodsmentioning

confidence: 99%

Biotic potential and reproductive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory

Montezano¹,

Specht²,

Sosa–Gómez³

et al. 2013

Rev. Bras. entomol.

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“…A strong negative correlation between number of copulations and the pre-oviposition period (r = -0.762, p = 0.002) was observed, indicating that S. albula presents an extension of the pre-oviposition as a function of the reduced number and absence of mating, which is also reflected as prolonged longevity, similar to S. littoralis (Kehat andGordon 1975, Ellis andSteele 1982), S. exigua (Rogers and Marti Jr 1997), Helicoverpa armigera (Hübner, 1808) (Hou and Sheng 1999) and Trichoplusia ni (Hübner, [1803]) (Ward and Landolt 1995). BIOTIC POTENTIAL, FERTILITY AND LIFE TABLE OF S. albula However, there was no significant correlation between the number of copulations and oviposition period (r = -0.300, p = 0.319) and post-oviposition period (r = 0.216, p = 0.479).…”

Section: Resultsmentioning

confidence: 91%

“…The longevity of S. albula females was significantly higher than males (Table I) and was negatively correlated with the number of matings (r = -0.788, p = 0.001) indicating that S. albula, similar to S. littoralis (Kehat andGordon 1975, Ellis andSteele 1982), presents a prolonged longevity as a result of reduced and delayed mating. Rogers and Marti Jr (1997) determined that when there is only a single opportunity for mating, two days after the emergence was the optimum age for mating S. exigua females to achieve their maximum reproductive potential, but they lived the fewest number of days.…”

Section: Resultsmentioning

confidence: 96%

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Biotic potential, fertility and life table ofSpodoptera albula (Walker) (Lepidoptera: Noctuidae), under controlled conditions

Montezano

Specht

Sosa–Gómez

et al. 2014

An. Acad. Bras. Ciênc.

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This study aimed to evaluate the biotic potential, life table parameters and fertility of Spodoptera albula (Walker, 1857) under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photo phase). The longevity, pre, post and oviposition periods, fecundity and fertility of 13 couples were evaluated. The longevity of females (13.500 days) was significantly higher than those of males (11.154 days). The mean durations of the pre, post and oviposition periods were 2.615, 1.769 and 9.385 days, respectively. The mean fecundity was 1.417.69 eggs and mean fertility was 1.340.401 larvae, per female. On average, females copulated 1, 231 times. A strong positive correlation was observed between the number of copulations and fecundity (r = 0.847, p <0.001), as well as a strong negative correlation between the number of copulations and the duration of the pre-oviposition period (r = -0.762, p = 0.002), and longevity (r = -0.788, p = 0.001). The biotic potential of S. albula was estimated at 8.768 x 10 22 individuals / female / year. The net reproductive rate (Ro) was 353,904 times per generation and the mean generation time (T) was 37.187 days. The intrinsic rate of increase (rm) was 1,105, with a finite rate of increase (λ) of 3,019.

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Life history changes in Trogoderma variabile and T. inclusum due to mating delay with implications for mating disruption as a management tactic

Gerken

Campbell

2018

Ecology and Evolution

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Controlling postharvest pest species is a costly process with insecticide resistance and species‐specific control requiring multiple tactics. Mating disruption (MD) can be used to both decrease a female's access to males and delay timing of mating and decreases overall mating success in a population and population growth rate. Development of new commercially available MD products requires an understanding of life history parameters associated with mating delay. These can provide information for targeting proportions of reproducing individuals using MD. After delaying mating for females of two closely related beetle species, Trogoderma variabile and T. inclusum, we surveyed survivorship, number of eggs laid, and number of progeny emerged. With increases in mating age, total number of eggs laid and total number of progeny emerged significantly declined over time. T. inclusum typically had greater numbers of eggs laid and progeny emerged compared to T. variabile as female age at mating increased, suggesting that T. inclusum may be more resistant to long‐term delays in mating. Life span showed an increase as mating age increased but life span significantly decreased almost immediately following mating. Simulations depicting multiple distributions of mating within a population suggest that in a closed population, high levels of mating delay significantly reduced reproductive growth rates. Although reproductive growth rates were decreased with increased mating age, they are still large enough to maintain populations. This study highlights the differences in life history between two closely related species, suggesting that T. inclusum outperforms T. variabile over the course of a life span, but T. variabile has better reproductive capabilities early in life. MD may also be a viable component of a pest management system for these two species as it significantly decreased overall reproductive output and population growth.

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The effects of delayed mating on the fecundity of females of Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae)

Cited by 45 publications

References 8 publications

Biotic potential and reproductive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory

Biotic potential and reproductive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory

Biotic potential, fertility and life table ofSpodoptera albula (Walker) (Lepidoptera: Noctuidae), under controlled conditions

Life history changes in Trogoderma variabile and T. inclusum due to mating delay with implications for mating disruption as a management tactic

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