AmberNichole
New Member
No i defiantly think it is a great study, and the best one I have seen. I just meant that it would be more accurate and even more interesting to have the same study done in their natural habitat.
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It's easy to say 'yes they do eat small vertebrates in the wild', but to what extent? What percentage of the natural diet of wild chameleons is actually composed of small vertebrates? And is it only because there is nothing else available or are they choosing to eat those despite plenty of bugs around? Without taking these factors into consideration that statement is really too incomplete to be a valid argument scientifically. Unfortunately this is one area of study (of the many involving chameleons) that is lacking so we only have a few sources to go on for true evidence. In this report of 'wild' Jackson's chams in Hawaii there is a complete analysis of the stomach contents of 34 chams: http://hbs.bishopmuseum.org/publications/pdf/chamaeleo-report.pdf. Vertebrate prey species isn't even a notable percentage. So to say 'this is natural' is a bit of a stretch. Just because it happens on occasion in the wild does not make it a natural behavior if it is not a consistent behavior. I have no doubt some of the larger species like oustalets or parsonii may consume a higher percentage than smaller species, but I still do not think it is a significant contribution to their diet enough that we need to try to replicate it. And, there is no reason to do so imo as a chameleon can live a very healthy long life completely through well rounded gutloading. Giving them a 'boost' is not a valid argument either. Just like people don't take one big vitamin once a month. The key is solid nutrition consistently over a long period of time to promote better health. Is one vertebrate prey item the end of the world? No. But to argue this is natural so there's nothing wrong with it is flawed deeper than the emotional component attached to it.
A total of 795 dietary items from 48 taxa was retrieved from our sample of [chameleons]. Twenty-six of these dietary taxa were identified to species, 17 to genus, and five to family. This comprised 43.3% of dietary items identified to species, 45.2% to genus, and 11.6% to family.
All chameleons but one had food items in their digestive tracts (97.1%); all but four food items were arthropods. Non-arthropods included two landsnails (Oxychilus alliarius) and two lizards (Lampropholis delicata).
Your numbers are a bit off. It was 2 lizards out of 795 prey items consumed total. So the percentage of vertebrate prey consumed was 0.0025%. And snails don't count because they are invertebrates. So, not a notable percentage.
I will be the first to admit that I wish that there was more research data to use and compare to truly natural environments! But it doesn't exist so we have to make do with what we have until it does.
AmberNichole Congratulations on your post. I do believe that this thread has set a new record for most views and comments within a 24 hour period. It has been a most entertaining read so far.
I have seen people ask way more important questions on this forum and get very few responses. Yet this girl posts a pic of a cham eating another LIZARD AND THERE IS A 5 PAGE ARTICLE HERE LOL PRIORITIES PEOPLE. I know it's not nice to look at but if you give it attention and comment on it then you draw more attention to it. Just let it fade away down the news feed and there yah go. the more you post the more you bump it. This is why people fight and argue a lack of common sense.