Thanks for the comments on the article, I appreciate that.
Temps are super important, so is hydration. Both are commonly misunderstood in captive husbandry. Husbandry is a big puzzle, with many important pieces, and temps and hyrdration are HUGE pieces.
If you offer a basking spot of 120-130F, your animals won't bask nearly as much as with a basking spot of 100F or 105F, true.
But what does that mean? That they "like" 105F better?
Nope. It takes much longer to accomplish heat goals with a low temp like 105F. With a basking temp of 130F, a lizard can accomplish heat goals in a very short time. They achieve metabolism needs quickly, efficiently, and SAFELY.
You don't see them "basking as much" or as long because they are accomplishing their goals in a short amount of time.
Basking in the wild exposes lizards to predation. They are evolved to use basking sites to quickly heat up as needed, then retreat to safety and cover. A lizard that has to bask for hours at a low temp is not getting the "engine" up to speed, and is practically begging for MORE heat, more useful heat.
If you live in natural Bearded habitat, Collared Lizard habitat, monitor lizard habitat, Uro habitat, heck, fence lizard habitat, use a Temp Gun and get some ACTUAL temps from natural basking sites and areas. It is really fascinating.
It gets MUCH hotter than 130F (surface temp) on natural basking sites, in the heat of the day. Basking surfaces can reach 200F (again, surface temps). But in the heat of the day, you don't see lizards out and basking at those extreme temps. 200F is an extreme temp. 130F is a useful everyday temp that I can pull off outside stone surfaces in Denver when it is 85F out.
Earlier in the day, or later in the day, as the temps drop, the lizards will bask. I have never been to Australia, but I have talked at length with field herpers that HAVE taken Australian field temps on sites that lizards are currently basking on, pulling temps from 120F to 150F . We see our captive species using a basking temp gradient ranging from 120-150F. All the time. But not for hours at a time : )
I have temped Collared lizards in the wild, on an 80F day, basking at 138F. These are temps that they use naturally, and those temps are beneficial in a captive setup.
You obviously don't want an entire cage to be 130F. You want to offer CHOICES. A temp gradient of 80-130F offers lots of choices. I can set up a 10 gallon tank with that temp gradient, using a 45 watt bulb. Using an elevated basking spot, it isn't too hard at all. It is easier in a larger tank, with more space, but it is not impossible.
I am posting from home, but I will post a basking setup pic tomorrow that helps to visualize a elevated basking spot with many temp choices.
I have spent well over an hour writing these two posts, I don't do it to poke fun at anyone, or to hurt folks feelings, I am just passionate about reptile husbandry and getting more info out there, and having discussion. This kind of discussion can be a little challenging, but that doesn't make it bad, or negative, or scary.
I REALLY want to see EmmaLeigh's Bearded do well, thrive, and have a long life. I wouldn't put in the time to post if I didn't. We still don't have a lick of husbandry info on that animal, but hopefully it is coming soon!
-----
robyn@proexotics.com
Pro Exotics Reptiles
