Iguanas and Basking Temperatures, Part two...

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Posted by Annaka on June 03, 2002 at 02:14:35:

Remember my last post, when I climbed up on my garage roof, and measured the temperatures my Guy used for basking? (Hello to the other Guy out here, LOL) I got some very high temp readings, much higher than the generally recommended basking spot temps for a captive iguana. In fact, parts of the roof where he basks were so hot, I could not walk barefoot there...

All these sites (plus many others) suggest a basking temperature around 95F
http://www.icomm.ca/dragon/igcare.htm#temp
http://www.greenigsociety.org/heatlighthumidity.htm
http://www.anapsid.org/air_cond.html
http://www.baskingspot.com/iguanas/igbook/housing.html

Ever since, I've been wondering about an iguana's working Core Body Temperatures (CBT). I have no way of measuring the CBT directly, though externaly my sun-basking ig feels much hotter to the touch than 95F. I don't know how accurately my measurements reflect the CBT, but here goes...

Four days in a row, I grabbed Guy and brought him indoors around 1:00 pm. To hopefully get his external and internal temps to equalise, I sat him on a sheet of styrofoam, covered him with 2-3 layers of towels, and let him sit for 15+ minutes. He calmed down and quickly fell asleep in the dark. I then put my digital thermometer under his belly, and took a reading. Afterwards, he could go out or stay in the house as he pleased. If he chose to stay in the house, I got a second temp reading, to see how much he cooled after an hour. Guy is around 18" SVL, and weighs 14.5 lb. Here are the results...

First Reading
1)100F
2) 99F
3) 98F
4)101F

Second reading,(room temp around 75F)
1)(walked out)
2)83F
3)(walked out)
4)88F

Follow Ups:

Great ig!!Good job!! Flavia Guimaraes 06/03/02 (0)
He's a great looking iguana. n/p Brian 06/03/02 (0)

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: <Img src="http://gallery.kingsnake.com/data/529bigguy1b.jpg"> : Remember my last post, when I climbed up on my garage roof, and measured the temperatures my Guy used for basking? (Hello to the other Guy out here, LOL) I got some very high temp readings, much higher than the generally recommended basking spot temps for a captive iguana. In fact, parts of the roof where he basks were so hot, I could not walk barefoot there... : All these sites (plus many others) suggest a basking temperature around 95F : http://www.icomm.ca/dragon/igcare.htm#temp : http://www.greenigsociety.org/heatlighthumidity.htm : http://www.anapsid.org/air_cond.html : http://www.baskingspot.com/iguanas/igbook/housing.html : Ever since, I've been wondering about an iguana's working Core Body Temperatures (CBT). I have no way of measuring the CBT directly, though externaly my sun-basking ig feels much hotter to the touch than 95F. I don't know how accurately my measurements reflect the CBT, but here goes... : Four days in a row, I grabbed Guy and brought him indoors around 1:00 pm. To hopefully get his external and internal temps to equalise, I sat him on a sheet of styrofoam, covered him with 2-3 layers of towels, and let him sit for 15+ minutes. He calmed down and quickly fell asleep in the dark. I then put my digital thermometer under his belly, and took a reading. Afterwards, he could go out or stay in the house as he pleased. If he chose to stay in the house, I got a second temp reading, to see how much he cooled after an hour. Guy is around 18" SVL, and weighs 14.5 lb. Here are the results... : First Reading : 1)100F : 2) 99F : 3) 98F : 4)101F : Second reading,(room temp around 75F) : 1)(walked out) : 2)83F : 3)(walked out) : 4)88F

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