Once-Mated Beet Armyworm (Lepidoptera: Noctuidae): Effects of Age at Mating on Fecundity, Fertility, and Longevity

Rogers, C. E.; Marti, O. G.

doi:10.1093/ee/26.3.585

Cited by 28 publications

(27 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

“…However, the onset of oviposition, at least in the first days after emergence, is conditioned on the occurrence of the first mating. This initial mating period should be near the second day after the emergence of both sexes, as described in Rogers and Marti Jr (1997) for S. exigua.…”

Section: Resultsmentioning

confidence: 98%

“…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. Additionally, Hou and Sheng (1999) Considering that the longevity of males, was hardly correlated with the number of matings (r = -0.112, p = 0.715), the results of this study allow us to infer that the greater longevity of females with respect to males is due to the reduced number of copulations.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

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.

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

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.

View full text Add to dashboard Cite

show abstract

“…In Lepidoptera mating can have both positive and negative effects on male and female lifespan (e.g., [9,19,[29][30][31][32][33][34]43]). One of our objectives was therefore to investigate if, and how, mating influenced lifespan in Y. padellus and Y. cagnagellus.…”

Section: Effects Of Mating On Lifespanmentioning

confidence: 99%

“…First, in Lepidoptera, positive [19,[29][30][31][32][33], negative [9,34], or no effects [35,36] of mating on lifespan have been observed in either sex or in both sexes. Therefore, the effect of mating itself needs to be considered when investigating sex-specific longevity and relating it to male investment in lifespan.…”

Section: Introductionmentioning

confidence: 99%

The Cost of Mating: Influences of Life History Traits and Mating Strategies on Lifespan in Two Closely RelatedYponomeutaSpecies

Bakker

Louçã

Roessingh

et al. 2011

International Journal of Zoology

View full text Add to dashboard Cite

Theory predicts that in monandrous butterfly species males should not invest in a long lifespan because receptive females quickly disappear from the mating population. In polyandrous species, however, it pays for males to invest in longevity, which increases the number of mating opportunities and thus reproductive fitness. We tested an extension of this idea and compared male and female lifespan of two closely related Yponomeuta species with different degree of polyandry. Our results confirmed the theoretical prediction that male lifespan is fine-tuned to female receptive lifespan; once-mated males and females of both polyandrous species had an equal lifespan. However, the degree of polyandry was not reflected in male relative to female lifespan. The observed similar female and male lifespan could largely be attributed to a dramatic reduction of female lifespan after mating.

show abstract

Helicoverpa armigera and Helicoverpa zea hybridization: constraints, heterosis, and implications for pest management

Rios

Specht

Roque–Specht

et al. 2021

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND: The invasion of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) into the New World has made it possible for this pest to hybridize with a native American species, H. zea (Boddie), under natural conditions. We investigated the viability and development of hybrids of these two Helicoverpa species. We reared the parental species and evaluated crosses between H. armigera males and H. zea females and vice versa, two intercrosses between hybrids, and eight backcrosses between hybrids and parental species. We estimated the length of immature stages, fecundity, survival, sex ratio, and heterosis. RESULTS: Although hybridization occcurred, with heterosis during the development of immatures, reproductive incompatibilities also were observed between the parental species and between hybrids from subsequent crosses. The interspecific crosses between hybrids and backcrosses confirmed the possibility of introgression events and their perpetuation in field populations. The results indicate that hybridization events are favored at high population levels, while at low population levels the 'species identities' will be maintained. CONCLUSIONS:The possibility of interspecific gene flow and its perpetuation through successive crosses and backcrosses suggests several recommenations for management. Populations of both species should be maintained at an equilibrium level to reduce the chance of interspecific crosses, which are presumably more likely to occur during pest outbreaks. The existence of hybridization and resistance to different active pesticide ingredients should be monitored. All practices related to managing the resistance of these pests to chemical and biological insecticides should be systematized to reduce the chance of selecting for resistant individuals.

show abstract

Once-Mated Beet Armyworm (Lepidoptera: Noctuidae): Effects of Age at Mating on Fecundity, Fertility, and Longevity

Cited by 28 publications

References 0 publications

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

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

The Cost of Mating: Influences of Life History Traits and Mating Strategies on Lifespan in Two Closely RelatedYponomeutaSpecies

Helicoverpa armigera and Helicoverpa zea hybridization: constraints, heterosis, and implications for pest management

Contact Info

Product

Resources

About