So, interesting things happening with Emily's web. That tangle of silk wrapped around an egg sac? She moved it. The whole thing. The moved it about a foot North. No idea why.
She also has done some very interesting web construction. Over the last four days she's built two additional webs both connected to her original one. So she has three orb webs that she's currently the owner of. One more and she can put a hotel there.
Spider Expert Catherine Scott turned me on to this textbook written by a guy with one of the best names on Earth, Rainer Foelix called The Biology of Spiders, so I've been reading that in addition to Spider Silk: Evolution and 400 Million Years of Spinning, Waiting, Snagging, and Mating by Leslie Brunetta & Catherine L. Craig (in odd weird fact, Leslie Brunetta tweeted at me after a photo of Emily got picked up by the Spider Community and sent around -- she may even be reading this). Her book is fantastic, it's funny and all about the very complex biology that allows spiders to do this crazy thing -- spinning silk with their bodies and forming it into complex designs all with a brain smaller than a pinhead.
Anyway, reading about Uloborus and webs ... maybe this offers some insight into her recent construction kick.
"If the web is only slightly damaged, as, for instance, after catching small prey, the spider may or may not mend the hole. In general, repair does not consist of reconstructing the original design but of patching the holes to make the web stable again. The cribellate orb weaver, Uloborus, however, often performs elaborate reparis, sometimes repalcing the entire half of a web in an orderly fashion." Rainer F Foelix, Biology of Spiders