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1. Feeding period, growth, and pupation in larvae ofdrosophila melanogaster

Author:
BAKKER, K.
Source:
Entomologia experimentalis et applicata 1959 v.2 no.3 pp. 171-186
ISSN:
0013-8703
Subject:
Drosophila melanogaster; adults; body weight; females; growth curves; hatching; instars; jars; larvae; males; metabolism; mortality; pupae; puparium; pupation; restricted feeding; sex ratio; starvation; weight loss
Abstract:
... Food uptake of Drosophila melanogaster larvae was limited by removing larvae from the food after different periods. Some of these larvae were transferred to culture jars -without food to study further development. The minimal feeding period necessary to complete development was 48 hours at 25°C; the larvae must have reached the third instar. Mortality of larvae with feeding periods of 40 hours or ...
DOI:
10.1111/j.1570-7458.1959.tb00432.x

2. On the relations between the duration of the larval and pupal period, weight and diurnal rhythm in emergence in drosophila melanogaster

Author:
BAKKER, K.; NELISSEN, F.X.
Source:
Entomologia experimentalis et applicata 1963 v.6 no.1 pp. 37-52
ISSN:
0013-8703
Subject:
Drosophila melanogaster; animals; circadian rhythm; eggs; larvae; males; oviposition; pupae; puparium
Abstract:
... In. this study of the duration of the egg + larval and pupal periods of individual animals, the duration of the larval period was on the average the same in both sexes, and the pupal period was on the average 7.5 hours longer in the males. Both larval and pupal period were significantly negatively correlated with weight. The diurnal rhythm in emergence strongly influences the duration of the pupal ...
DOI:
10.1111/j.1570-7458.1963.tb00601.x

3. Factors Controlling the Productivity of Drosophila Melanogaster and D. Simulans

Author:
D. D. Sameoto; Richard S. Miller
Source:
Ecology 1966 v.47 no.5 pp. 695-704
ISSN:
0012-9658
Subject:
Drosophila melanogaster; fecundity; females; larvae; mortality; oviposition; population size; progeny; pupae; siblings
Abstract:
... The ecology of selected populations of the siblings species Drosophila melanogaster and D. simulans was studied. Single females of both species had sigmoid—shaped productivity curves during 10 days of oviposition with D. simulans producing the largest offspring population. Keeping oviposition time constant and increasing the density of females resulted in second—degree productivity curves for both ...
DOI:
10.2307/1934257

4. Fecundity, Fertility, and Longevity of DDT‐Resistant and Susceptible Populations of Drosophila Melanogaster

Author:
James C. Underhill; David J. Merrell
Source:
Ecology 1966 v.47 no.1 pp. 140-142
ISSN:
0012-9658
Subject:
Drosophila melanogaster; at-risk population; fecundity; longevity
Abstract:
... The fecundity, fertility, and longevity of three DDT—resistant populations have been compared with these traits in their corresponding controls. The controls usually showed higher fecundity and fertility, but the resistant flies had a longer life span. These differences are interpreted in terms of the differing selection pressures that have existed in the two kinds of populations. ...
DOI:
10.2307/1935752

5. Soil Properties Affecting Dieldrin Toxicity to Drosophila melanogaster

Author:
H. P. Hermanson; Clifford Forbes
Source:
Soil Science Society of America journal 1966 v.30 no.6 pp. 748-752
ISSN:
0361-5995
Subject:
Drosophila melanogaster; bioassays; cation exchange capacity; colloidal properties; dieldrin; equations; humidity; insecticidal properties; mathematical models; minerals; soil organic carbon; soil water; surface area; temperature; toxicity
Abstract:
... The toxicity to Drosophila melanogaster Meigen of dieldrintreated soils was measured by bioassay. Under adequate standardization and control of light, temperature, humidity, and soil moisture, the variation in insecticidal activity was closely related to the colloidal properties of the soils. As organic carbon content, specific surface area of the minerals, and soil reaction increase, higher level ...
DOI:
10.2136/sssaj1966.03615995003000060026x

6. Dynamics of Popualations. II. Factors Controlling Population Growth and Population Size in Drosophilia Pseudoobscura and in Drosophila Melanogaster

Author:
Francisco Jose Ayala
Source:
Ecology 1967 v.48 no.1 pp. 67-75
ISSN:
0012-9658
Subject:
Drosophila melanogaster; Drosophila pseudoobscura; biomass; carrying capacity; environmental factors; heterozygosity; homozygosity; longevity; population growth; population size; temperature
Abstract:
... Four populations of Drosophila pseudoobscura and four of D. melanogaster were studied for the influence of certain environmental factors on the productivity and size of the populations. For each species a 2 x 2 factorial design was used, the variables being temperature (25°C and 19°C) and amount of food (2 and 3 food unites per week). A serial transfer technique was used to maintain the population ...
DOI:
10.2307/1933418

7. Selection of Pupation Site by Drosophila Melanogaster and D. Simulans

Author:
D. D. Sameoto; Richard S. Miller
Source:
Ecology 1968 v.49 no.1 pp. 177-180
ISSN:
0012-9658
Subject:
Drosophila melanogaster; adults; larvae; mortality; pupae; pupation; water content
Abstract:
... Drosophila melanogaster and D. simulans larvae were tested to determine their choice of pupation site in relation to larval density and moisture content of the medium. A dry medium produced a change in pupation behavior in D. simulans but not in D. melanogaster populations. Both species responded to a medium with high water content as follows: (1) a higher proportion of pupae were found on the sid ...
DOI:
10.2307/1933580

8. Interspecific Competition Between Drosophila Melanogaster and Drosophila Simulans. Effects of Larval Density and Short‐Term Adult Starvation on Fecundity, Egg Hatchability and Adult Viability

Author:
J. S. F. Barker; R. N. Podger
Source:
Ecology 1970 v.51 no.5 pp. 855-864
ISSN:
0012-9658
Subject:
Drosophila melanogaster; Drosophila simulans; adults; body weight; eclosion; egg hatchability; fecundity; females; interspecific competition; larvae; mutants; starvation; viability
Abstract:
... The effects of variation in larval density and variation in proportions of the two species during development on the fitness components of fecundity, hatchability and adult viability were studied using the Oregon—R—C wild type strain of D. melanogaster and a vermilion mutant strain of D. simulans. In addition, the effects on these fitness components of a restricted period of starvation immediately ...
DOI:
10.2307/1933978

9. Interspecific Competition Between Drosophila Melanogaster and Drosophila Simulans: Effects of Larval Density on Viability, Developmental Period and Adult Body Weight

Author:
J. S. F. Barker; R. N. Podger
Source:
Ecology 1970 v.51 no.2 pp. 170-189
ISSN:
0012-9658
Subject:
Drosophila melanogaster; Drosophila simulans; adults; body weight; interspecific competition; larvae; mixed culture; mutants; population density; sex ratio; viability
Abstract:
... In interspecific competition between various strains of Drosophila melanogaster and a vermilion mutant strain of D. simulans in continuous populations, heterogeneity among replicate populations and among generations within populations has been observed when the fitness of the melanogaster strain was apparently similar to that of simulans vermilion. Larval and adult numbers vary widely among genera ...
DOI:
10.2307/1933654

10. Soil Properties Influencing DDT Bioactivity

Author:
J. R. Peterson; R. S. Adams; L. K. Cutkomp
Source:
Soil Science Society of America journal 1971 v.35 no.1 pp. 72-78
ISSN:
0361-5995
Subject:
DDT (pesticide); Drosophila melanogaster; bioassays; cation exchange capacity; clay; edaphic factors; equations; hydrochloric acid; iron; lethal dose 50; loamy sand soils; organic carbon; prediction; silt loam soils; soil organic matter; soil sampling; sorption
Abstract:
... The study was conducted to determine the important soil variables affecting the bioactivity of DDT in soils to Drosophila melanogaster Meigen. Mathematical prediction equations were derived. Failure of the bioassay technique to be generally applicable necessitated division of the 31 soil samples used into two groups. The LD₅₀ (lethal dose for 50% of the population) to D. melanogaster ranged from 4 ...
DOI:
10.2136/sssaj1971.03615995003500010024x

11. Movement and metabolism of phorate under field conditions after granular band applications

Author:
Schulz, K.R.; Lichtenstein, E.P.; Fuhremann, T.W.; Liang, T.T.
Source:
Journal of economic entomology 1973 v.66 no.4 pp. 873-875
ISSN:
0022-0493
Subject:
soil fauna; phorate; Drosophila melanogaster; Wisconsin
DOI:
10.1093/jee/66.4.873
PubMed:
4200131

12. Incidences de températures élevées appliquées au cours du stade pupal sur les potentialitiés reproductrices des adultes de drosophila melanogaster

Author:
LAUGÉ, GINETTE; MASNER, PETER
Source:
Entomologia experimentalis et applicata 1974 v. no. pp. 511-521
ISSN:
0013-8703
Subject:
Drosophila melanogaster; adults; progeny; pupae; reproduction; temperature
Abstract:
... SUMMARY: EFFECTS ON THE REPRODUCTIVE POTENTIAL OF ADULT DROSOPHILA MELA-NOGASTER OF EXPOSURE TO HIGH TEMPERATURE DURING THE PUPAL STAGE After an exposure of pupae to 30° or 32°C during 1 to 4 days before emergence, adults were divided in two groups. Flies maintained at high temperatures (Go). At 30°, adults gave rise to imaginal G1 progeny only if pupal exposure was shorter than 48 hours. At 32°, ...
DOI:
10.1111/j.1570-7458.1974.tb00377.x

13. Preadult Competition between Drosophila Pavani and Drosophila Melanogaster, Drosophila Simulans, and Drosophila Willistoni

Author:
Myriam Budnik; Danko Brncic
Source:
Ecology 1974 v.55 no.3 pp. 657-661
ISSN:
0012-9658
Subject:
Drosophila melanogaster; Drosophila simulans; culture media; indigenous species; larvae; viability
Abstract:
... When the Chilean endemic species Drosophila pavani compete during the pre—adult stage on a limited amount of food with D. melanogaster, D. simulans, and D. willistoni, developmental periods were significantly retarded, but egg—to—adult viability decreased only in the presence of D. melanogaster. In the same experiments, two of the other three species suffered no modifications in survival and devel ...
DOI:
10.2307/1935157

14. Predation by Terrestrial Isopods

Author:
E. B. Edney; Warren Allen; Joan McFarlane
Source:
Ecology 1974 v.55 no.2 pp. 428-433
ISSN:
0012-9658
Subject:
Armadillidium vulgare; Citrus; Drosophila melanogaster; Hippelates; Porcellio; ecosystems; field experimentation; laboratory experimentation; predation; predators; pupae
Abstract:
... Fifty of each sex of two species of terrestrial isopods, Armadillidium vulgare and Porcellio laevis, were each offered 16 live pupae, four each of Drosophilia hydei, D. immigrans, D. pseudoobscura and D. melanogaster, for 24 hr. Both sexes of both predator species fed on all prey species, each predator species taking numbers of prey species in the reverse order of prey size, namely, D. melanogaste ...
DOI:
10.2307/1935231

15. Studies on Intra‐ and Inter‐Specific Competition in Drosophila

Author:
Bruce Wallace
Source:
Ecology 1974 v.55 no.2 pp. 227-244
ISSN:
0012-9658
Subject:
Drosophila melanogaster; Drosophila simulans; competitive exclusion; females; mixed culture; parents; progeny
Abstract:
... Of eight species of Drosophila (ananassae, funebris, melanogaster, nebulosa, pseudobscura, simulans, virilis, and willistoni), the number of progeny produced per culture vial increases with the number of female parents for D. melanogaster, D. simulans, D. willistoni, D. ananassae, and D. nebulosa; in contrast, the progeny yield is a constant that is independent of the number of parental females pe ...
DOI:
10.2307/1935213

16. Studies on the nutrition and growth of drosera species with reference to the carnivorous habit

Author:
G. E. CHANDLER; J. W. ANDERSON
Source:
new phytologist 1976 v.76 no.1 pp. 129-141
ISSN:
0028-646X
Subject:
Drosera; Drosophila melanogaster; carbon; carnivores; growing season; inositols; insects; nitrates; nitrogen; nitrogen content; nutrient solutions; phosphorus; plant growth; rhizomes; sand; soil; sulfur; tubers; Australia
Abstract:
... Drosera whittakeri was grown in sand cultures supplemented with inorganic salt solutions lacking either nitrogen, sulphur, phosphorus or the microelements. Application of the insect Drosophila melanogaster to the tentacles of plants raised on nitrogen or sulphur deficient medium, enhanced growth, which on nitrogen deficient medium was accompanied by decreased nitrogen content per unit weight altho ...
DOI:
10.1111/j.1469-8137.1976.tb01445.x

17. Dynamics of Single‐Species Population Growth: Stability or Chaos?

Author:
Laurence D. Mueller; Francisco J. Ayala
Source:
Ecology 1981 v.62 no.5 pp. 1148-1154
ISSN:
0012-9658
Subject:
Drosophila melanogaster; carrying capacity; computer simulation; evolution; genetic heterogeneity; population growth; prediction
Abstract:
... We have examined stability at the carrying capacity for 25 genetically different populations of Drosophila melanogaster. In spite of their genetic heterogeneity, 20 of the populations yield stable equilibria and none have eigenvalues significantly greater than one. Computer simulations demonstrate how selection at the individual level may account for population stability (and, hence, that group se ...
DOI:
10.2307/1937278

18. Mutagenicity of Tenebrionid Flour Beetle Secretions Using Drosophila melanogaster Sex-Linked Recessive Lethal Test

Author:
Robert A. Wirtz; John T. Fruin
Source:
Journal of food protection 1982 v.45 no.12 pp. 1084-1086
ISSN:
0362-028X
Subject:
Drosophila melanogaster; Tenebrionidae; adults; arthropods; benzoquinones; ethyl methanesulfonate; flour; insects; laboratory animals; males; mortality; mutagenicity; mutagens; mutation; stored products; sucrose
Abstract:
... The Tribolium spp. beetles are the most common tenebrionids infesting flour and other stored foods. 2-Ethyl-1, 4-benzoquinone (EBQ) and 2-methyl-1, 4-benzoquinone (MBQ) are the major secretory products of these insects. Benzoquinones are highly reactive compounds which have been reported to be acutely toxic and carcinogenic to laboratory animals. Using the Drosophila melanogaster sex-linked recess ...
DOI:
10.4315/0362-028X-45.12.1084

19. Adaptation to alcohols in relation to the alcohol dehydrogenase locus in drosophila melanogaster

Author:
DELDEN, W.; KAMPING, A.
Source:
Entomologia experimentalis et applicata 1983 v.33 no.1 pp. 97-102
ISSN:
0013-8703
Subject:
1-propanol; Drosophila melanogaster; adults; alcohol dehydrogenase; alleles; body weight; enzyme activity; ethanol; hexanols; homozygosity; juveniles; loci
Abstract:
... The process of adaptation to hexanol-1 was studied in the Groningen population of Drosophila melanogaster Meigen (Diptera). In view of the prominent role of the alcohol dehydrogenase (Adh) locus in survival on alcohol supplemented medium the contribution of the Adh locus to adaptation was investigated. Strains, either homozygous for the Adh F or the Adh s allele, were kept on food supplemented wit ...
DOI:
10.1111/j.1570-7458.1983.tb03239.x

20. Detection of cytogenetic regions influencing RNA polymerase activity in Drosophila melanogaster by segmental aneuploid mapping

Author:
Willms, J.; Phillips, J.
Source:
Canadian journal of genetics and cytology 1984 v.26 no.6 pp. 682-691
ISSN:
0008-4093
Subject:
aneuploidy; DNA-directed RNA polymerase; Drosophila melanogaster
DOI:
10.1139/g84-108
PubMed:
6441637