A quick spider update (no photos)

The last time I mentioned my spider work, I had sad news: the eggs were dreadfully dessicated, and I hypothesized that the declining humidity was not good for their health. I have no new egg sacs, but I did increase the humidity in the incubator, and have other good signs to report. There has been zero mortality among the juveniles this week, and the adults were extraordinarily lively — so lively that I had to deal with 3 escapes while I was trying to feed them.

I had spiders crawling all over me, which was a delightful feeling, but also made me a little panicky — I had to get them back into their nice safe vials before they got injured. All were rescued, no harm done, and they also immediately chowed down on the juicy flies I’d given them.

I felt all paternal and warm inside, as one does when dealing with affectionate pets.

A bad day in the spider lab

I had such high hopes this morning — necessary reagent had arrived, I had a nice egg sac, I was going to open it up and spend my afternoon exploring embryos. It was not to be. I teased apart the egg sac, and what do I find? Heartbreak. Disappointment. Failure.

The eggs were all dead. I’m not sure what happened here, but I have a hypothesis: this summer and early fall, I had all these fish tanks in the lab, gurgling away, and the place was pretty humid. Now those are shut down, and it’s winter in Minnesota, when the air dries out. Spiders like some degree of humidity, and I’ve been maintaining that by regularly misting their vials with an atomizer, but maybe that’s not enough for the embryos.

So I’m cranking up the moisture levels in the incubator. Now I’ve got to worry about balancing everything — too much and I’ll have to worry about mold and fungus.

Babies are such fussy little creatures.

You say that like it’s a bad thing

There’s a surge in the spider population going on, and people are calling it an Arachnid Apocalypse.

It isn’t just your imagination. Scary sightings of larger-than-usual spiders are on the rise in Metro Vancouver this fall.

Pest control specialist Randy Bilesky has seen a 50 per cent increase in calls to his service this season over last.

“People panic … we get the phone call after someone has walked through a spider web,” said Bilesky. “They are sure it’s still in their hair, especially if it is one of the big hobo spiders.”

I prefer the term “Spider Renaissance”.

What next? Is everyone going to start complaining “Oooh, there are too many squid in the ocean” and “Ick, there are prokaryotes crawling around in my colon”?

If it’s Monday, it must be spider feeding day

Mondays are usually awful, but now at least I have one thing to look forward to: it’s feeding day down on the spider ranch. The adults get a nice chewy cricket each, while I go through the spiderlings’ chambers and toss them a fruit fly each. Since Vera was so avidly hungry today, I recorded her trapping her prey and then picking at it for an extended period of time.

This one is only for spider obsessives who can enjoy staring at close-ups of arachnids doing strange things with their jaws for 15 minutes or more. Are you one? Let me know, and we can start a club.

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Spider update (no spider photos)

I’m getting a little anxious — my spider family is in a quiet phase right now. I have 6 breeding pairs of adults (well, Gwyneth ate her consort after mating, so 5½, and maybe bred pairs is the better term). I’m down to one egg sac — again, from Gwyneth, who is a sick Goth freak because she knitted an ugly, sloppy sac with the dead corpses of her prey imbedded in it, but it does have developing embryos inside it. She also littered the floor with decapitated fly heads. Gwyneth scares me sometimes.

But otherwise, I’m just waiting for them to produce more. My goal is to have a steady reliable output of eggs, and these little hiatuses are nerve wracking, but also understandable, since the colony is so small yet.

I do have a lot of tiny little juveniles coming up, at least. They’re getting a little overwhelming — these are my spider-children, in these little vials I picked up at JoAnn Fabrics (they’re intended for storing and sorting beads, but I have perverted them to my own wicked ends.) Thirty vials, thirty hungry little babies.

I have to go in every couple of days and tend to them. Put one or two flies in each vial (I made a little fly-shaker out of an Eppendorf tube — it’s like a salt shaker, only when you shake it flies come out), give ’em a spritz of water from an atomizer, and agonize over their health and predatory instincts. As they get big enough, I move them to an adult-sized tube, and when I’m confident of their sexual maturity, I’ll pair them up.

But right now it’s a waiting game with placid little beasties (except for Gwyneth) quietly tending to their webs, nibbling on flies and crickets, making me fret over when they’re going to spawn again.

By the way, over half the vials I’m cultivating contain Gwyneth’s progeny — she’s a fecund little monster. I’ll be interested to see if her distinctive behaviors carry on into the next generation. I’m planning on doing some inbreeding of her offspring to see if I can get a brood of savage spider mothers.