Formica rufa - difficult to keep?

Formica rufa - difficult to keep?

Beitragvon nortino » 18. Jun 2008 20:04

I collected eight F. rufa queens about 3 weeks ago when some local nests were doing the mating flights. They were all placed in individual test tubes with moist cotton (like how they arrive from Antstore), and a bit of food. Three of them are now dead, and what I noticed is that all eight have attacked the cotton, tearing bits off with their jaws, and spraying it with formic acid so that within a few days it had gone black.
When I opened the tubes of the dead ones, they smelt like a school chemistry laboratory; I think the dead ones have sprayed so much formic acid that they have poisoned themselves.
Several of the queens have laid eggs, which is a good sign, but they don't seem very attentive to them compared to my Lasius niger queens; I'm starting to get the feeling that Formicas don't make very good mothers.
Anyway, I was just wondering, given all the acid spraying and egg-inattention, if these are particularly hard ants to keep? I looked on the ant database and it says "attitude class 4 (impossible)" which is a bit worrying, although I assume it's a babel-fish type translation from the German.
They're so damn aggressive it's kind of funny, like every time they see my fingers near the test tube they adopt this attack posture with their jaws open, but I'm starting to think they're so aggressive that they basically just go ape-shit in a test tube and spray acid everywhere until they die.

Any thoughts?
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Beitragvon tail__ » 18. Jun 2008 20:15

Formica rufa queens are temporary social parasites, this means they must have a few adopted workers (usually Formica fusca or other Serviformica) to survive and raise the brood. You should know this before picking them.
All Formica are quite nervous, and F. rufa are extremally agressive, and they have ability to spray acid instead of only pouring it. They also have good sights and react to movement. This means they can intoxicate themselves in formicarium, when upset. The formicarium for them must be very calm or covered with red foil.
And another thing is legal status - F. rufa is protected in many European states, and I don't know if keeping them is legal in UK - probably not.
I don't think keeping them is impossible, but it is very hard indeed. After all, you won't have fully developed rufa colony (hundreds thousands workers) and they won't build a 1m anthill in your room, and the small colony don't differ much from F. sanguinea, which is a lot easier.
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Beitragvon nortino » 18. Jun 2008 20:59

F rufa don't have any legal protection in the UK (see here for example). I was aware that they can employ temporary social parasitism as a means of starting a new colony, but I was under the impression that they didn't always do this (e.g. I have read that it is also common for them to return to their own nest after mating as they are polygynous, but I guess in that case they would have help from existing workers anyway).
I am endeavoring to stress them as little as possible; they were all originally placed in individual test tubes, that were then covered with a cloth and not disturbed for two weeks, and when I checked on them three were dead. We'll see what happens with the rest. Thanks for your help.
Zuletzt geändert von nortino am 19. Jun 2008 13:27, insgesamt 1-mal geändert.
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Beitragvon KiamCameron » 18. Jun 2008 22:36

Umm Yes Formica rufa are protected in the UK and it is illegal to take them from the wild... im sure someone else like miszt will post about this to :)
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Beitragvon miszt » 18. Jun 2008 23:17

Many species of Formica are very rare in the uk, including rufa, rufibarbis, pratensis and candida are thought to be on the edge of extinction, although only rufibarbis has legal protection, none of them should be taken from the wild under any circumstances, there are various organizations working very hard to try to understand the problems these species are facing and reintroduce new colonies (that doesnt mean people should release there colonies into the wild, it has to be done professionaly). I would strongly urge anyone not to collect any Formica species in the wild in the UK.

There are plenty of European Formica that can be bought without a problem, but as Tail said, they are nervous and aggressive ants, rufa in particular are very quick to spray formic acid, which will damage the ants and make your house smell, well, bad lol
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Beitragvon nortino » 18. Jun 2008 23:43

Kiam, possibly you should check your facts before asserting things about UK law on a public forum; as Miszt points out it isn't actually illegal to take them from the wild.
I should just explain something about the context in which I collected these queens. I live in Bournemouth on the south coast, and within this area the ant is in fact quite common. In particular, there are a large number of F rufa colonies in a public park at the edge of the beach, and in summer there are a lot of workers walking all over the paths in the park and getting squashed by members of the public who are completely oblivious to them. During the mating swarms, there are many queens walking around on the floor in the park and on the promenade; people notice the 'flying ants', children squash them, people accidentally step on them, and rival F. rufa ants decapitate them. In this context I don't have any moral qualms about collecting a handful of mated queens. I am not disturbing the nests; I am not raiding colonies for brood; I am not doing anything to the workers.
I appreciate that the ant is less common in other parts of the UK and in the rest of Europe, and if I lived in a different area I would think twice about collecting the mated queens, but collecting a few queens in a context where there are literally swarms of them getting squashed by hordes of tourists is clearly doing nothing to affect the chances of the species' survival.
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Beitragvon miszt » 19. Jun 2008 01:10

The problem is nortino, that while you may have many in your area, as you said they are still very rare, and I think its hard to justify taking them just because you have allot near you, and it can also give other less conscious people the idea that it doesnt matter, obviously you have thought about it a bit before doing it, but we still have to be carefull that we dont encourage people to take Formica species from the wild in the UK, some people dont have the same sense of responsability as many of the users on this forum have ;)

This is why I urge anyone to leave Formica species alone in the UK, as they have enough of a hard time surviving as it is, and there are places around Europe that they are abundant and can be bought pretty cheaply :) would be a shame if we lost our biggest ants, we've only got 42 species as it is! :(



anyways, yep they are not easy to keep, simply because they need to be kept very calm, and they also need a pretty big nesting area, there nests are specialized, one of their most interesting features is the way they build their nest to keep it at a constant tempreture all thru the summer, using pine needles
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Beitragvon tail__ » 19. Jun 2008 07:30

Maybe you should ask a lawyer (esp. someone specialised in environment protection laws), if it is legal in your country or not. Anyway, this particular species is endangered because of environment devastation, not by lack of new queens, remember that only one of thousand survives. It's like picking a few seeds of some rare plant.
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Beitragvon SteveUK28 » 19. Jun 2008 09:39

i'm sorry but i have to agree with miszt on this one. I have a few colonys local to me, and they are thriving atm. But i observe them and never aim to take any queens as i know its just "Wrong". An endangered species should never be taken from the wild regardless of what it is. Would you take for instance a White Tiger from the wild!!!! I think not.
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Beitragvon tail__ » 19. Jun 2008 12:01

Steve, ant and tiger, this is very bad comparison. Large mammals breed only a few young in their lives, and they do what they can to ensure that as many as possible will survive and grow up. This is K-selection strategy. Ants, like almost all insects, have r-selection strategy, this means they produce as many offspring (a queen can be considered an offspring of a colony) as possible, hoping a few of them will survive, and taking into account that the great majority - more than 99% - is doomed to death. And most of them die due to competition with each other or with older colonies of the same species. So there is no sense to compare ants and large mammals. Analogy to single plant seed, or single sturgeon egg, is much more sensible.
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Beitragvon SteveUK28 » 19. Jun 2008 12:34

My point was simple tho tail, you just dont take something that is endangered.. Regardless of size.
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Beitragvon tail__ » 19. Jun 2008 12:45

And i mean only that taking a few queens doesn't endanger them even a little bit more. Unlike any way of reducing numbers of aphids and other forest "pests" in their territory (like removing dying or dead trees), which IS dangerous for them and this is what made them rare.
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Beitragvon nortino » 19. Jun 2008 13:04

OK, thanks for your input guys; I'd point out that we're all on the same side here, I think we all have an interest in ants, and therefore care that species such as F. rufa don't become extinct, and as you say Miszt I have thought about it and wouldn't do anything that I thought would endanger these or any other ant colonies.
These particular ants are in a VERY public place, and unfortunately are given no protection at all by the park authority - for example, they could be helped a lot by closing that particular section of the park for a few days during the mating swarms, but they don't, so what actually happens is that the paths are covered in the dead bodies of workers and queens who have been squashed by people who just seem completely unaware of them.
Steve, as tail__ points out the analogy with this and taking a large endangered mammal from the wild is pretty silly, and of course I would do no such thing; I think if I picked up an entire mature colony and put it in a bag (which of course I wouldn't) then I think the comparison would be more valid, and that of course would be a terrible thing to do for the species.

I think you should try to put this in perspective - while I was googling on the legality of keeping F rufa, I came across a 'bushcraft' site that was talking about harvesting colonies to eat the larvae!:

" . . . If you're using Mearsy's method of collecting then don't put too much on the tarp otherwise instead of the ants carrying the larve to the eadges they just tuck it under the pile you 've made....less is actually more in this instance.

you can harvest the nests up to twice per year (carefully and in moderation) without causing them any damage or long term problems.

The larve taste very good fried with a oil and a little suger but I wouldn't say they really taste anything like shrimp. I collected a load for people to try at a large bushcraft camp last May and they were very good. It's not hard to collect them and takes very little work on your part. . . .
"

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and here a construction company is talking about relocating their nests to make way for a road:

" . . . One of the significant mitigation works required was the relocation of over a dozen Red Wood Ant (formica rufa) nests identified along the verges of the A2 . . ."

http://66.102.9.104/search?q=cache:yIMltR4yaoQJ:www.cogap.com/externaldocs/aboutus/CRReview%25202006.pdf+Formica+rufa+legal&hl=en&ct=clnk&cd=15&gl=uk

It's idiots like this who are endangering the species, not an ant-enthusiast collecting a handful of mated queens.
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Beitragvon miszt » 19. Jun 2008 14:10

thats the problem Nortino, and as Ant Keepers, we should be setting an example, how can we possibly justify telling people they are rare and should be left alone if we dont ourselves?
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Beitragvon JimmyVe » 19. Jun 2008 15:42

Here in Belgium they are protected. So it is illegal to keep them here. Looks like it is not in England, still it is better to leave them. Maybe it is not impossible to keep them but in my opinion it is. ;) You can not make a farm that large and good like they would prefer.
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