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 New Scorpio Maurus and Swammerdami

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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/16/2010, 4:36 am

I don't see how that would make them bigger, but I don't beleve that would be healthy to the animals!
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H. laoticus
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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/16/2010, 5:05 am

Bex, that has been posed before, but I forgot what other hobbyists thought of it Mad. The reason for the experiment is because back when arthropods were gigantic and more awesome, the atmosphere was composed of much more oxygen.
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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/16/2010, 5:08 am

H. laoticus (Thu 16 Dec - 9:05) wrote:
Bex, that has been posed before, but I forgot what other hobbyists thought of it Mad. The reason for the experiment is because back when arthropods were gigantic and more awesome, the atmosphere was composed of much more oxygen.

Will hve to try an find those posts then lol

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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/16/2010, 5:13 am

I think it was on another forum and I don't think that person tried it out in the end either. I forgot what the problems were.
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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/16/2010, 7:40 am

231bex (12/15/2010, 8:13 am) wrote:
yeah i tried to get pics but the buggers wont stay still and now they are well burrowed Sad i think they are very small to be adults considering adult size is meant to be 2-3.5 inches! mine are an inch at the most lol

Ok no worries just thought i'd ask. I know its hard enough to get clear pectine pics in a clear tub let alone once they get into their burrows! Yeah I think they're too small to be adults too so I suppose getting one of the oppposite sex would be pointless anyway.

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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/16/2010, 10:07 am

It wasn't so much that there was more oxygen in the atmosphere than other gasses, it was that the atmosphere was at a higher pressure, so the partial pressure of oxygen was greater (which can be approximated by using oxygen at current atmospheric pressure in concentrations of greater than 21%).

They've already done studies on this in some beetles and found that it can result in larger specimens, but you can't mimic the giants of ages past without generations and generations of selective breeding and high-oxygen exposure.

If anyone's wondering the reason behind more oxygen = bigger bugs, it has to do with arthropod's respiratory systems. There's no real "lungs," just capillaries that carry air to all parts of the body. The farther away from a spiracle these capillaries get, the less oxygen remains after nourishing the cells along the way. If there was a greater partial pressure of oxygen to begin with, there'd be more available, and these capillaries could go farther along (essentially resulting in a larger specimen).

I'm not sure how this would apply to scorpions as they have booklungs instead of spiracles (the studies focused on insects), but I imagine it would have similar implications.

The difficulty in doing this for the practical hobbyist is in generating sufficiently large quantities of oxygen to make a difference (atmospheric oxygen averages around 20-21%). You might be able to step it up a notch with lots of live plants, but I doubt that would make a significant difference.

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PostSubject: Re: New Scorpio Maurus and Swammerdami    12/25/2010, 5:03 am

Ah ok, thanks for the explanation Mordax Smile

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