Mating Behavior of the Maize Weevil, Sitophilus zeamais (Coleoptera: Curculionidae)1

Walgenbach, Catherine A.; Burkholder, Wendell E.

doi:10.1093/aesa/80.5.578

Cited by 22 publications

(27 citation statements)

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“…Newly emerged S. oryzae were sieved from wheat kernels Ͻ12 h after emergence. This time period was selected based on previous published research for S. zeamais (Walgenbach and Burkholder 1987). Beetles were sexed based on rostrum characters (Halstead 1963), and males and females were held separately in 30-ml plastic cups with lids with Ϸ4 g of wheat.…”

Section: Methodsmentioning

confidence: 99%

“…can mate multiple times (Richards 1947, Stubbs 1982, Walgenbach and Burkholder 1987, there is little published information on the reproductive strategies of Sitophilus spp., and the Þtness consequences of multiple mating are not well understood. The mating behavior of S. zeamais was described by Walgenbach and Burkholder (1987) and that of S. granarius by Wojcik (1969). Males of S. granarius and S. orzyae produce an aggregation pheromone that may help facilitate encounters between males and females Burkholder 1981, Phillips et al 1985).…”

mentioning

confidence: 99%

“…Males of S. granarius and S. orzyae produce an aggregation pheromone that may help facilitate encounters between males and females Burkholder 1981, Phillips et al 1985). Walgenbach and Burkholder (1987) reported that female S. zeamais did not copulate before 3 d after emergence, and for some individuals, this refractory period lasted for as long as 10 wk. Copulation lasted an average of 4.8 h, with a range from 3 to 5.9 h. There was no effect of time of day, presence of light, female age, or mating status of either sex on copulation duration or time until copulation occurred after adding beetles to chamber.…”

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confidence: 99%

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Fitness Consequences of Multiple Mating on FemaleSitophilus oryzaeL. (Coleoptera: Curculionidae)

Campbell

2005

Environ Entomol

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The effects of multiple mating on Þtness in the rice weevil, Sitophilus oryzae L. (Coleoptera: Curculionidae), were studied. In the Þrst of a series of experiments, the impact of multiple mating on female Þtness was determined by evaluating the effects of a single mating period with one male, continuous exposure to one male, and continuous exposure to Þve males. Continuous exposure to one male increased lifetime fecundity by extending the period of time progeny were produced compared with a single mating period with one male, although average progeny size was reduced. Exposure to Þve males signiÞcantly reduced female survival and the number and size of progeny produced compared with the other treatments. In the second experiment, the number of progeny and the length of time progeny could be produced from a single copulation were determined. Females became sperm depleted within 7 Ϯ 1 wk after laying 259 Ϯ 22 progeny, but a second mating period 9 wk after the Þrst copulation extended progeny production. In the Þnal experiment, the mechanism for the decline in progeny production at high male densities was determined to be reduced oviposition, caused at least in part by a high proportion of time spent in copula. The number of copulations has costs and beneÞts for females that may affect population dynamics.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Fitness Consequences of Multiple Mating on FemaleSitophilus oryzaeL. (Coleoptera: Curculionidae)

Campbell

2005

Environ Entomol

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“…During mating, male rice, maize, and granary weevils rub their rostrums more or less continually on the pronotums of the female (Wojcik, 1969;Holloway & Smith, 1987;Walgenbach & Burkholder, 1987). According to Wojcik (1969), this behaviour is not found for any other species of Curculionidae.…”

Section: Annotations On the Phylogenesis Of Sitophilusmentioning

confidence: 98%

An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

Plarre¹

2010

Eur. J. Entomol.

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Abstract. It is generally accepted that stored grain insects are food opportunists and, when originally made the transition to manmade storage facilities, came from natural reservoirs like bird or rodent nests. This may not be true for Sitophilus granarius. Among all stored-product insects, the granary weevil S. granarius is the only species never recorded outside of storage facilities. Anatomical, physiological, and behavioural aspects of recent and hypothetical ancestral species in the genus Sitophilus are presented and discussed in terms of adaptation to the anthropogenic storage of grain. Full development inside the host kernel, endosymbioses with bacteria, and the reduction in flight activity to prevent water loss in a dry environment can be regarded as pre-adaptations for the evolution of a full synanthropic grain pest of cosmopolitan distribution. Faunistic, archaeological, and historical evidences of the pest's origin and spread in conjunction with early agriculture are reviewed to support a hypothesis of a co-evolutionary event with the dawn of Neolithic agriculture.

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“…This procedure simulates culture conditions in which the culture interval is 8 weeks, taking into consideration that mating in S. zeamais does not occur before weevils are 3 d old (Walgenbach and Burkholder, 1987). There was little possibility of third generation adults emerging since the minimum time needed for development is 28 d (Povey and Sibly, 1992).…”

Section: Progeny Productionmentioning

confidence: 99%

The impact of grain quantity on the biology of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae): oviposition, distribution of eggs, adult emergence, body weight and sex ratio

Danho

Gaspar

Haubruge

2002

Journal of Stored Products Research

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Studies were conducted to observe the effect of grain quantity on the oviposition, distribution of eggs, adult emergence, adult body weight and sex ratio of Sitophilus zeamais, an important pest of maize. Three quantities of maize grains (200, 400 and 800 grains/glass jar of 1 l) were used under laboratory conditions (301C and 70% r.h.). Twenty five male/female pairs of maize weevil were introduced into each glass jar for 12 d. The greatest and lowest number of eggs was laid on batches of 800 and 200 grain kernels, respectively. The total number of grains attacked followed a similar trend. The aggregation of eggs expressed as a ratio of the variance to mean increased as the amount of maize grains was increased. The aggregation parameter k ranged from 2.35 on 200 grains to 4.49 on 800 grains. On average, a significantly higher proportion of grains were infested (90%) when less grain was present. Emergence of adult weevils was, however, maximal (472 individuals/glass jar) when the grain quantity was highest. The mean weight of the emerged adults was not significantly influenced by grain quantity, but female weevils were heavier than males (mean weight 3.16 vs. 3.05 mg) irrespective of maize quantity and eggs laid. Sex ratio (males/100 females) of emerged adults did not differ among treatments. The importance of grain quantity, and of oviposition, in internally feeding granivores and the possibility that there is an adaptive reproductive strategy are discussed. r 2002 Elsevier Science Ltd. All rights reserved.

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Mating Behavior of the Maize Weevil, Sitophilus zeamais (Coleoptera: Curculionidae)1

Cited by 22 publications

References 0 publications

Fitness Consequences of Multiple Mating on FemaleSitophilus oryzaeL. (Coleoptera: Curculionidae)

Fitness Consequences of Multiple Mating on FemaleSitophilus oryzaeL. (Coleoptera: Curculionidae)

An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

The impact of grain quantity on the biology of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae): oviposition, distribution of eggs, adult emergence, body weight and sex ratio

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