The Emergence Rhythm of the Dung-Fly, Scopeuma (=Scatophaga) stercoraria (L.)

Lewis, Cheryl; Bletchly, J. D.

doi:10.2307/1408

Cited by 17 publications

(7 citation statements)

References 3 publications

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“…The primary peak of emergence occurs close to dawn in the yellow dung fly Scopeuma stercoraria (Lewis and Bletchley, 1943), Queensland fruit fly Dacus tryoni (Myers, 1952;Bateman, 1955), and in moths Pectinophora gossypiella (Pittendrigh and Minis, 1964) and Heliothis zea (Callahan, 1958). The primary peak of emergence occurs close to dawn in the yellow dung fly Scopeuma stercoraria (Lewis and Bletchley, 1943), Queensland fruit fly Dacus tryoni (Myers, 1952;Bateman, 1955), and in moths Pectinophora gossypiella (Pittendrigh and Minis, 1964) and Heliothis zea (Callahan, 1958).…”

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confidence: 99%

Role of Temperature in Mediating Morning and Evening Emergence Chronotypes in Fruit Flies Drosophila melanogaster

et al. 2014

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Following decades of research under controlled laboratory conditions, there has been growing interest in the recent past to study circadian rhythms in nature. Recent studies conducted under natural conditions have been fruitful in exploring several characteristics of circadian rhythms that remained cryptic and previously masked under standard laboratory conditions, reemphasizing that the complexity of circadian rhythms in nature increases multifold under the influence of multiple zeitgebers. However, our understanding of the contributions of different zeitgebers in shaping various rhythm characteristics still remains elusive. Previously, Vaze et al. reported that chronotype differences between the morning emerging (early) and evening emerging (late) populations of Drosophila melanogaster are considerably enhanced under natural conditions compared to standard laboratory conditions. In the present study, we assess the role of 2 primary zeitgebers in nature-light and temperature-individually and in unison in driving chronotype differences. We report that when provided independently, temperature cycles enhance divergence between the early and late chronotypes more strongly than light, but when together, light and temperature appear to act antagonistically and that appropriate phase difference between light and temperature cycles is essential to promote chronotype divergence. Thus, our study highlights the importance of light and temperature, as well as their interaction with circadian clocks in mediating early and late chronotypes in fruit flies D. melanogaster.

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confidence: 99%

Role of Temperature in Mediating Morning and Evening Emergence Chronotypes in Fruit Flies Drosophila melanogaster

et al. 2014

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“…This paper reports only on the types of emergence patterns (protogyny, protandry, bimodal emergence) in cyclorrhaphous Diptera that were observed in Buck (1997). Besides one case described by Lewis and Bletchly (1943), this appears to be the only report on the occurrence of protogyny in Diptera.…”

Section: Introductionmentioning

confidence: 64%

Protogyny, protandry, and bimodal emergence patterns in necrophagous Diptera

Buck

2001

Can Entomol

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The emergence patterns of Diptera breeding in small-sized and buried carrion were studied in rearing experiments with field-exposed baits. Development times are reported for 52 species in the families Phoridae, Sphaeroceridae, Sepsidae, Heleomyzidae, Anthomyiidae, Fanniidae, Muscidae, Sarcophagidae, Psychodidae, and Sciaridae. Most species showed a synchronous emergence of males and females. Protandry was detected in Hydrotaea ignava (Harris) (Muscidae), H. palaestrica (Meigen), and Psychoda minuta (Banks) (Psychodidae). Protogyny was found in several species of Phoridae, namely Conicera similis (Haliday), C. schnittmanni Schmitz, Anevrina unispinosa (Zetterstedt), and Triphleba dudai (Schmitz). Conicera schnittmanni and T. dudai showed two discrete emergence periods for each sex, which is due to a delayed emergence of some specimens. Protogyny is a rare phenomenon in Diptera and insects in general, and has never been reported before in Phoridae. The significance of protogyny could not be ascertained in the examined species, because of insufficient information on their mating systems and female receptivity patterns. Buck M. 2001. Protogynie, protandrie et emergence bimodale chez des diptkres necrophages. The Canadian Entomologist 133 : 521-531.

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“…The sex ratio at emergence was 1.24 males : 1 female, significantly different from unity. Other laboratory studies ( Lewis & Bletchley, 1943; Sigurjonsdottir, 1980), however, have shown emergence sex ratios that did not deviate significantly from 1 : 1. These studies used eggs either taken directly from the field or laid by females that had been taken from the field while ovipositing or mating.…”

Section: Discussionmentioning

confidence: 83%

The effect of sperm storage and timing of mating on offspring sex ratios in the yellow dung fly Scatophaga stercoraria

Seal

2000

Ecological Entomology

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Summary 1. Offspring sex ratios in the yellow dung fly Scatophaga stercoraria were examined in the laboratory. 2. Previous work indicated that females using previously stored sperm to fertilise their eggs produced male‐biased sex ratios. This result may have been due to female influences or the effects of sperm storage per se. 3. This pattern was not reproduced in the study presented here. Females that were allowed to mate just prior to oviposition produced similarly male‐biased sex ratios to those females that used previously stored sperm to fertilise their clutch. 4. Captive‐reared females may have perceived a lack of males in the population and thus produced a male‐biased offspring sex ratio. Alternatively, gamete ageing or extra‐chromosomal sex ratio distorters may have produced the male bias.

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The Emergence Rhythm of the Dung-Fly, Scopeuma (=Scatophaga) stercoraria (L.)

Cited by 17 publications

References 3 publications

Role of Temperature in Mediating Morning and Evening Emergence Chronotypes in Fruit Flies Drosophila melanogaster

Role of Temperature in Mediating Morning and Evening Emergence Chronotypes in Fruit Flies Drosophila melanogaster

Protogyny, protandry, and bimodal emergence patterns in necrophagous Diptera

The effect of sperm storage and timing of mating on offspring sex ratios in the yellow dung fly Scatophaga stercoraria

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