Any reason for tarantula to stand on tip toes when not eating? (pic)

[WolleWolf]

When I have begun this hobby (around 98) I bought my T´s from Michael Bullmer and Martin Thierer Lutz (afaik they described G. pulchripes and Psalmopeus langenbucheri), I asked them the same question. And their answer was, that when a T is standing on its tip toes it needs (or want to drink) water.

I am not sure if this knowledge today outdated or not.

 

[Arachnophobphile]

My 3 inch female A. chalcodes always does this. I can attest there is no mites and the substrate is not over moist.

 

[Lautaroled303]

Over here in the UK they call this 'stilting'.

I read some theories a long time ago that it had something to do with heat. They said something such like they stilt when uncomfortable with heat. I can't confirm if this is true or not.

Theraphosidae do some weird things sometimes. This is one of those behaviours. There must be a reason behind it though.

I have only seen it with some of my Brachys and Grammostola.

hi kezy, it's interesting what you say. I have a G. Pulchripes and for heat is enclosure in the cold nights I putting hot stones inside. When I do this, the T. go out of his home (a coconut) and stand on tip toe or stilting how you say. I think T. do this wanted warm in the high, but after a few days heat his enclosure at this way, I noticed that my T. was a little weak, maybe for the heat, but really idk. Just in case I'll never do that again.
Pd: I'm learning English, so sorry for the bad writing.

 

[Tbone192]

Yeah there may be something to it then, as it is only the arid species I have seen do this

Likely, raising the body above the hot ground slightly cools the spider. I have definitely read about and have seen lizards carrying their bodies well above the ground in hot arid places when in the open.

 

[Ultum4Spiderz]

hi kezy, it's interesting what you say. I have a G. Pulchripes and for heat is enclosure in the cold nights I putting hot stones inside. When I do this, the T. go out of his home (a coconut) and stand on tip toe or stilting how you say. I think T. do this wanted warm in the high, but after a few days heat his enclosure at this way, I noticed that my T. was a little weak, maybe for the heat, but really idk. Just in case I'll never do that again.
Pd: I'm learning English, so sorry for the bad writing.

I don’t use stones for anything I’ve had Ts fall on them and get hurt ages ago . Did you find a better heating method?

Likely, raising the body above the hot ground slightly cools the spider. I have definitely read about and have seen lizards carrying their bodies well above the ground in hot arid places when in the open.

old thread but I had to comment.
I’ve seen them standing tall for no reason but it’s usually during eating . I tried to snap a pic of a t albo but it somehow noticed and went back to normal. https://arachnoboards.com/threads/tarantula-lift-kits.354535/