Do the webs really capture anything? My G. rosea's webs are not sticky at all and crickets can just walk on them no problem.It works like a trap for any in coming perdators/prey, the animal/insect eather gets stuck on the webbing or the vibration alert the tarantula that somthing is coming. I'm guessing she does it while she is eating so that she doesn't have to worry about anything else sneaking up on her.
They alert the spider to the vibrations of possible prey items. The spider itself, does the capturing.Do the webs really capture anything? My G. rosea's webs are not sticky at all and crickets can just walk on them no problem.