Posted by: WillHayward at Sat Nov 5 23:44:17 2005 [ Report Abuse ] [ Email Message ]
"As was explained to me by an experienced keeper, immune systems in animals from different areas are meant to combat different elements, including parasites, bacteria, natural toxins and etc. These could come from the land, the air or from different wildlife, be it co-habitants or prey. So, to generalize this, you should try and keep mixed species that are from close to the same area for maximum security helth, and well being."
OK second try at this. previous well thought out response was accidently deleted through operator error and stupid computer tricks.
If an animals immune system has evolved to different elements as you say then simply having them out of their native habitat would be exposing them to elements they are not accustomed to and in effect be unhealthy for them. Even with CB specimens, I don't know if immune systems can evolve that quickly. I don't think domestic crickets, mealworms, superworms or fruit flies are the staple diet of very many wild reptiles. All of these food sources would expose the animal to different elements. Substrates, cage decorations, live plants, even the water you use could do that. I think that having healthy specimens to start with is more important than making sure they come from the same geographical region. I think that if healthy stock are used, a small frog from South America can cohabitate nicely with a small lizard from Madagascar, as long as you follow the other excellent suggestions you made in your original post.
"As you mentioned, dart frogs (and even reed frogs) are a great mix. I'll have to go back and read that article that appeared in REPTILES MAGAZINE to recall exactly what was said on this topic. However I don't beleive, these rules always apply to all amphibians as well. They have different skin, and incredibly strong immune systems (that arn't even heavily affected by mold, proved highly deadly). Take snails for example... if your reptile will accept snails as a feeder, offer them. Even wild caught snails, because snails that have parasites, cannot transfer them to reptiles."
I read that article as well, I'll try to find it. The picture I refered to however was in the issue with the fire salamander on the cover.
one word of caution about wild caught snails. The parasites that live off of snails may not be able to transfer to reptiles but snails are the intermediate hosts to very many parasites that can transfer to reptile, birds, and mammels. Its been a while since my college parasitology class but I seem to recall that snails are notorious intermediate hosts. Many Parasites go through several life cycle stages and will not develope in a snail but as soon as the snail is eaten by something the parasite matures. The only one I can remember (and I don't even recall the name of the parasite or the disease it causes, Shistosomiasis perhaps) involves sheep. I can see the life cycle in my head Mature parasite in sheep, eggs in sheep dung, sheep dung washed into stream to hatch, immature parasites find there way into a snail, snails on grass near stream edge that sheep eat, mature parasites in sheep. This is a serious parasitic worm that causes many thousands of deaths in humans around the world every year I also seem to recall someone saying that one of the problems with keeping Caiman lizards in captivity was that all they ate was snails. you couldn't deparasitize them because if you fed them WC snails the parasites just kept coming back. Domesticated snails for escargot would be an option but a very expensive one.
"Again, this is all stuff that I have read or asked experienced herp owners. But THANKS! for replying. I was hoping to discuss this with someone because it is such an interesting topic!
It is an interesting topic, and I think a very important one. Yes, there are people out there who will say "OK I will only keep one species per cage" when you tell them the hazards of mixing species. Unfortunately, many of them will simply say that to make you happy and go ahead an do it anyway with no guidance. I think one of the responsibilities of more experienced keepers is to help these people if they are bound and determined to mix species. It would be far better to suggest to them that an anole, a longtail grass lizard, a green tree frog and a gray tree frog can peacefully coexist in an appropriate tank rather than simply tell them no and have them go somewhere else and buy that Veiled Chameleon to put in with their leopard gecko and their kingsnake. One of the reasons I stopped reading the tree frog forum was because a bunch of 13 year olds (or at least they acted like it) would respond to any question of mixing species with responses like "never mix species you will only kill them" and "so you like killing frogs" and " sure mix them if you want to kill them." Mixing species can be done but it takes a great deal of effort. My general response to people is that I don't recomend it but if people are serious about doing it right thenm I will try to help them