How does the number of maggots in the mass affect the temperature of maggot mass and development of maggots in the mass?

2698 Words Apr 3rd, 2014 11 Pages
Investigation: How does the number of maggots in the mass affect the temperature of maggot mass and development of maggots in the mass?

Abstract
The aim of this investigation is to find a correlation between the number of maggots in the mass and the temperature of maggot mass. To find the correlation the different number of maggots in each mass was placed in (the isolated by glass beakers) polystyrene cups. The internal temperature of masses was obtained regularly every 10 minutes during 30 minutes time period under the same temperature of surroundings. The experiment was repeated several times and all results were recorded, averages were calculated and the graph showing the correlation was plotted. The result of the investigation is
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Larvae lack not only functional legs, but also clearly expressed head (See Picture 1). This simplification of the structure is possible here because the larvae of flies are completely immersed in the prepared food and they do not have to look for food by themselves. They only migrate from corpse to find a suitable place to pupate. Larval body extends to the rear end, where a pair of breathing holes is located. Therefore, swarming in the rotting body, the larvae put up the back end of their body in the air.
The maggot transformation into a pupa (an insect at the immobile non feeding stage of complete metamorphosis) happens in a very original way: larval skin is not flushed as it happens in transformation of other insects. The skin separates from the body of larva, dries and turns brown forming a protective “case” around the pupa which is a replacement for a cocoon. If you open the dry shell of the “false cocoon” a fly will be found in a real cocoon. The whole development of a fly from egg to an adult takes in average around 20 days (depends on the type of fly). The development time of fly can be affected by different factors.

Diagram No. 1 shows complete metamorphosis.

Three main factors are:
Ambient temperature and temperature within mass
Number of maggots in mass
Food resources
Toxins (5.)
In this experiment we researched the impact of the number of maggots in mass on development of the

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