Redstrike said:jaizei said:Tom said:J, first of all I like you and enjoy reading your posts. I did not intend to insult or offend you or anyone. Now I mean this genuinely, I really like your term "big league". Very clever and illustrative. However, I did not TRY to big league you, I DID big league you. 25 years of professional experience with ANYTHING is "big league". But please understand I did not explain my level of experience to "one up" anyone, I did it to try to illustrate that I have seen a lot of things during all that time. I could not insult you or your level of experience because I have no idea what it is. My explanation of where I've been was also an invitation for you to say what you have seen and done and for how long. I do believe here is an aspect of quality over quantity sometimes, so its not all about the number of years either.
Now I will elaborate on what I have seen in reference to the other thread. I have seen tortoises die from diseases they caught because they were housed with tortoises from other continents. Is that enough elaboration? In one case there were russians, redfoots and sulcatas all living together for a couple of years. Things were not quite right all the time, but they were alive. Within a six month period, all of them died. Necropsy revealed multiple infestations and infections not commonly seen in any of the species that had it, but commonly seen in the species they were housed with. Nobody wrote a scientific paper about it for me to quote. There really wasn't anything to write. These three species shared each other's diseases and died. Don't go getting all hung up on the details and trying to prove me wrong about this one case. I've seen it dozens of times and so has anyone else who has been around large collections of tortoises and reptiles.
My point is that the outcome of mixing species IS known and it IS bad, eventually. I don't say what I say because its just my opinion it IS based on fact. I have seen many tortoise die of foreign diseases from other species. For cryin' out loud, look at the mycoplasma infection in the CDT population. There was just a post last night where a guy admitted losing a radiated tortoise due to mixing species and he lamented that he had to learn "the hard way". If I can help it, I'd like to help some people avoid learning the hard way.
.. and just because you can stick a knife in one side of an outlet without getting shocked, does not make it smart, and does not mean it should be recommended or encouraged in others.
Verifiable facts > Anecdotal evidence
On the Internet, everyone is an expert and has some anecdote to prove their point. Online, one-upmanship is the name of the game, which is why I do not feel the need to quantify my experience in terms of years. Next thing you know, we'll have someone posting about how their g-g-grandfather was on the HMS Beagle.
Jaizei, I can understand your position with verifiable facts > Anecdotal evidence, but there are underlying (and verifiable) facts in support of Tom's stance on the deleterious results seen from multi-species housing.
I'm going to use wild ungulates in North America as an example. I'm from Maine, and before the colonial times (perhaps during, my history is terrible) we had woodland caribou, moose, and wolves. There were few if any white-tailed deer in our forests, perhaps tiny populations in the southern portion of the state. Once we starting logging and extirpated wolves, white-tailed deer shifted their range into all of ME, carrying with it a very common parasite: Brain worm. Brain worm lives between the brain membrane and skull cavity as well as most of the CNS in white-tailed deer, remaining relatively harmless to the host (sign of a good parasite). Eventually, eggs are cast into deer feces, where snails consume them and act as a secondary host. Deer eat the snails, perpetuating the cycle. Now, once white-tailed deer ranges started over lapping with woodland caribou, their populations crashed. Moose also weren't fairing as well, but seemed to manage okay (and still do in much of the state). The fact is, brain worm did not evolve with Moose or woodland caribou and rather than maintaing a stasis with them, they bore into the brain and CNS tissues, killing the host. Woodland caribou are now extirpated (locally extinct throughout Maine) and moose with brain worm are put down every year.
I don't want to come across the wrong way here, or sound too aggressive, but if you want facts, this is an axiom in all biology: parasites and diseases from different species can be devastatingly lethal when introduced to a novel host. This is a fact
Housing multiple species together is not a good idea.
If you would show me direct connection between a specific instance of captive bred tortoises of different species contacting each other that resulted in a specific pathogen wiping large populations of them out, I would love to read it. I tried the peer-reviewed sources, but I am sure you and I both are surprised that that well came up dry. To personify them, iridoviruses do not mind too much whether the transmission is within a species or across two (or three, or four, or genera, or family, or order, or class...). ChHV, to personify again, does not care if transmission is between two marginata, two graeca, or one of each.
Otherwise, the context is as different as comparing my situation to H5N1 and humans. I guess we should hermetically seal ourselves away from all avians, too, just in case. After all, they are not of our species.
emysemys said:I don't have science or articles to back me up, but I still believe in not mixing species. My evidence is all anecdotal. I've been operating a turtle/tortoise rescue here in Central California for many years and have taken in sick tortoises people didn't want to have to spend money on. I've heard quite a few times about how they had a desert tortoise (or a sulcata or fill in the blank) and decided to get another tortoise to keep it company, so they got a different kind of tortoise. Now one or the other tortoise is sick, will you take it? I have to put 2 and 2 together and come up with the fact that one of these tortoises got sick from being with the other one. It was usually a sulcata/desert tortoise mix.
I see nothing wrong with this. I would not mix sulcatas with DTs, either, personally.