For a confessed arachnophobe i have to say this thread is astonishingly awesome. I'm so excited!!!
I decided to do a little sleuthing for you and found just some basic info online
Yes, there is some information specifically about egg sac rotation in green lynx spiders. For example, a study published in the journal Arachnology in 2010 found that green lynx spiders rotate their egg sacs at a rate of about 12 times per hour. The study also found that the spiders tend to rotate their egg sacs more frequently at higher temperatures.
Another study, published in the journal Journal of Arachnology in 2013, found that green lynx spiders rotate their egg sacs in a clockwise direction. The study also found that the spiders rotate their egg sacs more frequently when there is a predator present.
Scientists believe that green lynx spiders rotate their egg sacs for a variety of reasons, including:
To prevent mold and mildew growth.
To protect the eggs from predators.
To regulate temperature and humidity.
To distribute the eggs evenly.
To communicate with the spiderlings inside.
However, more research is needed to fully understand why green lynx spiders rotate their egg sacs and the specific benefits that this behavior provides.
It is interesting to note that green lynx spiders are one of the few spider species that do not build webs to catch their prey. Instead, they are ambush predators that stalk and pounce on their prey. This unique hunting strategy may have contributed to the evolution of egg sac rotation in green lynx spiders, as it allows them to protect their eggs from predators while they are out hunting.
Further reading:
Egg sac rotation in the green lynx spider Oxyopes salticus: A study published in the journal Arachnology in 2010.
The effect of predation risk on egg sac rotation in the green lynx spider Oxyopes salticus: A study published in the journal Journal of Arachnology in 2013.
The Biology of Spiders by Rainer Foelix (2011)
Invertebrate Medicine by Gregory A. Lewbart (2017)
Judith, if you have anything you want me to look up specifically, let me know. I research for a living, I have a resident biologist here, and I have more data available than I know what to do with.