+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Studies on the intraspecific competition in dung breeding flies iii. pupal size and mortality in immature stages under various larval density conditions in musca hervei villeneuve diptera muscidae

, : Studies on the intraspecific competition in dung breeding flies iii. pupal size and mortality in immature stages under various larval density conditions in musca hervei villeneuve diptera muscidae. Applied Entomology and Zoology 22(1): 59-67

Musca hervei VILL. was reared at thirty-one density levels from 1 to 301 of newly hatched larvae per 50 g cow dung at intervals of 10 larvae, As the density increased, reduction in size of subsequent pupae appeared firstly (at ca. 31 larvae/50 g dung) and progressively reduced up to the level of ca. 191 larvae at which the mean pupal volume was 72.3% less than that at low densities, and the same rate of reduction was seen in both sexes. When the density increased beyond that level, the reduction could hardly be seen to progress any more, and was replaced by increasing mortalities in both larval and pupal stages. The intensity of the overcrowding affected the sex ratio of the adults emerged, that is, as the larval density became higher than 201 larvae/50 g dung, so much the sex ratio favoured females. From these facts the breeding of this species in a dung pat outdoors was discussed.


Other references

D.B.rtoli, M.; Gaglione, P., 1970: Study of the dispersion of radioactive effluents into a lake. I. Contamination of the bottom sediments. Minerva Fisiconucleare 14(4): 190-196

Sohn, M-Ho.; Carlson, R.A., 2004: Viewpoint alignment and response conflict during spatial judgment. Spatial judgment (e.g., identifying the relative location, such as left or right, of a target) from a reference point becomes more difficult with increasing disparity between the relevant allocentric viewpoint and the observer-centered viewpoint....

Fossati, N.; Larcher, A.; Gadda, G.M.; Sjoberg, D.D.; Mistretta, F.A.; Dell'Oglio, P.; Lista, G.; Carenzi, C.; Lughezzani, G.; Lazzeri, M.; Montorsi, F.; Vickers, A.J.; Guazzoni, G.; Buffi, Nò.Maria., 2015: Minimally Invasive Partial Nephrectomy Versus Laparoscopic Cryoablation for Patients Newly Diagnosed with a Single Small Renal Mass. Minimally invasive partial nephrectomy (MIPN) and laparoscopic renal cryoablation (LRC) are two treatment options increasingly used for small renal masses. To compare perioperative, oncologic, and functional outcomes after MIPN and LRC. We include...

Chabolle, F.; Biacabe, B.; Sequert, C.; Cabanes, J.; Lachiver, X.; Fleury, B., 1995: Treatment of velopharyngeal stenosis after pharyngotomy for chronic snoring. Apropos of 13 cases. Velopharyngeal stenosis is a rare complication of pharyngotomy (UPPP) for chronic snoring. Its treatment is hard because of its recidivant feature. The aim of this study was to determine a therapeutic strategy accorded to each stenosis from clinic...

Pelliniemi L.J., 1974: Ultrastructural differentiation of the gonadal ridge in pig embryos. Teratology 10(3): 320

Vleggaar, F.P.; Van Buuren, H.R., 2000: The prognostic significance of antimitochondrial antibody profile testing in primary biliary cirrhosis. Journal of Hepatology 32(Supplement 2): 129

Izetbegovic, S., 2014: Occurrence of ABO And RhD Incompatibility with Rh Negative Mothers. Hemolytic disease of the newborn was first described in the medical literature 1609, when it was diagnosed in one French housewife. In 1932 Diamond and colleagues described the mutual relationship of fetal hydrops, jaundice, anemia and erythoblast...

Marcuse, F.L.; Bitterman, M.E., 1946: Notes on the results of Army intelligence testing in World War I. Science 104(2697): 231-231

Carrió, I., 2016: Debate: Molecular cardiac imaging is ready for the prime time con between wishful thinking and reality. Journal of Nuclear Cardiology 23(1): 64-66

Bernal-Cano, F.; Joseph, J.T.; Koralnik, I.J., 2007: Spinal cord lesions of progressive multifocal leukoencephalopathy in an acquired immunodeficiency syndrome patient. Progressive multifocal leukoencephalopathy (PML) is a deadly demyelinating disease of the central nervous system, which occurs in immunosuppressed individuals. This disease is caused by a reactivation of the polyomavirus JC (JCV). Clinical presen...