Simon's Tarantula Page   
 A brief summary in English 
     E-mail:  Simon.C.Frank@gmx.de

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My contribution for the competition “Youth Researches”

Which effects does a modification of the climatic conditions on sloughing and growth of tarantulas have?

Simon C. Frank  My name is Simon C. Frank,
 I am 22 years old
 and I live in Birkenfeld near Pforzheim and inTübingen.
 I am studying Biology in Tübingen.

I have written the following elaboration for the purposes of the competition “Youth Researches. I participated thereby in 18 and 19 February 1998 in the regional competition Nordbaden in Mannheim.

As topic of my competition work for “Youth Researches
I choose from the special field “Biology”:
Which effects does a modification of
the climatic conditions
have on sloughing and growth of tarantulas?

Brief summary

Due to often very insufficient information about the optimal breeding temperature of tarantulas, I placed myself the questions: Which temperature is the most suitable? And which advantages will this knowledge provide for the breed of tarantulas? After successful mating, building of cocoon and slip of approx. 500 young tarantulas I put a great extent of them separately into small plastic containers and formed 3 groups of 30 animals each.

I weighed now, after each sloughing, always 10 spiders from the respective group and formed the average from these weighing results. I entered these results together with the sloughing intervals into a diagram. On the basis of this diagram and other recordings one can conclude, which living conditions are optimal for young tarantulas.

It was shown that contrary to frequent recommendations in the literature about tarantulas, an evenly warm temperature leads to a better growth than the often recommended nocturnal temperature reduction. Additionally the mortality rate is somewhat higher at varying temperatures.

On the other hand my experiments showed that a constant temperature of 30°C, is rather somewhat too much, although this corresponds to the natural daytime temperatures in the tropical homelands of the tarantulas. A constant temperature of 30°C increased the mortality rate of the little animals.

That is why I recommend, to keep the tarantulas at an even temperature of approx.. 27° - 28° C. Naturally this temperature specification must be co-ordinated with the respective type.

When we see the differences in the growth of the animals in the individual groups, we can imagine well, that it is possible to let animals of different gender let become sexually mature at the same time, which is not possible under "normal" conditions. Thus it would be possible to mate animals from one cocoon and so assure the breed of rare types of tarantulas.

Table of contents

1 introduction 2 Method and strategics 3 Results 4 Discussion Bibliography
Source of the pictures


I want to express my special thanks to

My largest spider
"My largest tarantula". ;-)

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©  Copyright   Simon C. Frank 1998
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