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RE: timber rattlesnakes not eating
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by Peter84Jenkins on June 16, 2011
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I am glad we have had a productive topic! But I feel I must retort in one area. 70 to 75 deg are too low for day time temps. W. H. Martin has found the optimum temps for timbers are 80 to 85 deg F. I said the snake must be allowed to thermo-regulate via a gradient. Yes, 90 is way too hot to keep timbers at without the ability to escape to a cooler region of the enclosure. Keeping timbers at 80 should not be worrisome, since it is on the low end of their optimum range. I have done temp sampling on several locations I work at and have found gravid females soaking up the warmth at 85 to 88 deg. I was on a location today, and watched a timber crawl from a blast furnace into a shaded area that sampled 77 deg. Good to see some productive posting here!
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RE: timber rattlesnakes not eating
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by wvslayer on June 28, 2011
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not yet i have just left them alone and let them settle down. they have all been defecatating alot so they must have had big meals before i got them I'm going to find some little rabbits or birds to try to feed them thanks for asking. also i have read some research that states that a higher percentage of yellow phase rattlesnakes are female is there any truth to this. thanks from wv
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RE: timber rattlesnakes not eating
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by Peter84Jenkins on June 28, 2011
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personally, I have found a higher percentage of black phase to be be female. When you look at how their evolution parallels Wisconsinan Glacial Age, timbers were actually wiped out of their northern range approx 23,000 ybp. Timber rattlesnakes in their northern range come from a lineage approx 2,500 years old, while timbers (including canes) are 9,000 to 10,000 years old. This is backed up by fossil records. They survived in their southern ranges until the climate became suitable again for them to move north. Since timbers need a mean July temp of at least 65 deg F (w.s. Brown) a high percent of females are dark so that they can absorb warmth quickly, this is especially important to gestating and yolking females.
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