235 replies to this topic

[Kalidas]

Woah that giant vase setup is so amazing, glad to see them doing well and developing

[Silq]

Update 11-7-2019
 
I still have both colonies, but the one in the vertical prototype formicarium is not doing well. It's been losing workers like crazy. I'm not sure what's going on, but every time I look at it, there is a pile of dead workers in the foraging area.

 

You can see piles of dead workers here. I've probably lost 75% of the colony by now. It's down to about 200 workers, and pretty much all the repletes are gone.

 

 

 

 

 

 

I'm guessing maybe the black mold that has been growing inside the nest over the years might have something to do with it.

 

 

Your custom feeder looks like it is 3D printed and the standard material PLA is not food-grade safe for humans. I don't know if that means harmful enough to kill ants, probably even more potent. I would take a look at replacing the feeders and maybe that may help. 

 

An alternative is to using PETG filament as it is food-grade safe but your 3D printer will need to get up to 250c to use that material and a heated bed.

 

Afterthought, the commercially sold feeders are 3D printed as well so it maybe PLA so I could be totally wrong. Just trying to throw out ideas.

 

edit: spelling.

Edited by Silq, November 8 2019 - 11:06 AM.

[dspdrew]

 

Update 11-7-2019
 
I still have both colonies, but the one in the vertical prototype formicarium is not doing well. It's been losing workers like crazy. I'm not sure what's going on, but every time I look at it, there is a pile of dead workers in the foraging area.

 

You can see piles of dead workers here. I've probably lost 75% of the colony by now. It's down to about 200 workers, and pretty much all the repletes are gone.

 

 

 

 

 

 

I'm guessing maybe the black mold that has been growing inside the nest over the years might have something to do with it.

 

 

Your custom feeder looks like it is 3D printed and the standard material PLA is not food-grade safe for humans. I don't know if that means harmful enough to kill ants, probably even more potent. I would take a look at replacing the feeders and maybe that may help. 

 

An alternative is to using PETG filament as it is food-grade safe but your 3D printer will need to get up to 250c to use that material and a heated bed.

 

Afterthought, the commercially sold feeders are 3D printed as well so it maybe PLA so I could be totally wrong. Just trying to throw out ideas.

 

edit: spelling.

 

 

I don't print feeders with PLA, I use PETG. Also these feeders are not unique to this colony, I have lots of colonies that drink from them.

[Manitobant]

Maybe the colony has picked up the scent of their old nest and associate it with mold and germs? Try moving them into a completely new nest and see what happens.

[dspdrew]

Maybe the colony has picked up the scent of their old nest and associate it with mold and germs? Try moving them into a completely new nest and see what happens.

 

There shouldn't be any old scents after going through the cleaning process I put my formicariums through.

[dspdrew]

Update 5-24-2020
 

I'll start with the oldest colony in the giant vase. This colony is 4 years and 10 months old now, and they're still doing pretty well. They're producing a little less than they were in the last update, and there were some deaths again for a little while, but not so much now.

 

 

 

 

 

They don't have a whole lot of brood right now, but here's one of their cocoon piles.

 

 

 

This is some of the smaller brood they have right now.

 

 

 

 

Here you can see where the queen resides. She is in the very bottom chamber in this picture, right in the center. There is another chamber further down, but that one's pretty wet.

 

 

 

 

Next is the colony in the prototype formicarium that's been doing horribly. The workers finally stopped dying, but the colony only has about 20 workers left now.

 

This is all that's left of it.

 

 

 

Still producing, but not much.

 

 

 

Now for the new colony from last season. This is the one that started in one of the giant vase setups as a single queen and has been growing steadily. It's hard to say how many workers there are now, but I was able to count around 40 or so, so there is probably a lot more than that.

 

You can see they dragged a lot of larger pieces of gravel up and put it all around their nest entrance.

 

 

 

You can see how much more they have dug compared to the last pictures.

 

 

 

[mmcguffi]

Amazing journal! I can't believe I just found this now. How are your colonies doing? Did the prototype colony pull through in the end?

[mmcguffi]

posting for posterity 

 

lots of opinions on AC here, but there is some really great footage of your colonies here and it seems a shame not to post it here. AC's footage of your Acromyrmex colony is also great

Edited by mmcguffi, November 6 2020 - 10:11 PM.

[dspdrew]

Amazing journal! I cant believe I just found this now. How are your colonies doing? Did the prototype colony pull through in the end?

 

Thanks. The queen and the last two workers of that colony just died a few days ago. I'll have to decide what colony to put in that formicarium now that its vacant.

[ZTYguy]

You should save that nest for a dream colony if you have any in mind. Save it for the next season.

Edited by ZTYguy, November 7 2020 - 11:34 PM.

[Antkeeper01]

update?

[dspdrew]

I recently found more M. mexicanus queens, and couldn't help but notice some really obvious and interesting differences in the ones from a completely different part of the Mojave desert. These are kind of a rust color, and the heads are quite a bit larger too.
 

[AntsCali098]

It seems like a lot of people are catching mexicanas lately. Is it a good time to go to Joshua tree or something?

[dspdrew]

They are all over the Mojave desert,  you just have to go when it gets enough rain.

[AntsCali098]

Okay. I’ll check if it rains soon. Thanks

[B_rad0806]

I recently found more M. mexicanus queens, and couldn't help but notice some really obvious and interesting differences in the ones from a completely different part of the Mojave desert. These are kind of a rust color, and the heads are quite a bit larger too.
 

I noticed the same thing too with mine. Looks much better