The DARK side?

Darth Molt

Arachnosquire
Joined
Feb 3, 2019
Messages
105
is to bad for a T to be in darkness 24/7? It’s winter here in Iowa so not much sunlight should I leave my bedroom lights on during the day so my Ts can get a full day and night time cycle? Thanks peeps :)
 

EtienneN

Arachno-enigma
Joined
Jul 15, 2017
Messages
1,038
I'm not convinced of this. I think they respond and require lighting cues in the wild.
Yes, but don’t they use lighting cues in the wild to help navigate their daily requirements to live; i.e. food and water availability, sheltering depth, the approach of mating season, and since we provide everything for them in captivity, their need to rely on the big old sun (or just plain old photons in general) thus becomes a non-issue.
 

Rigor Mortis

Arachnobaron
Joined
Nov 7, 2018
Messages
490
I'm not convinced of this. I think they respond and require lighting cues in the wild.
Oh, absolutely. But as far as needing light to physiologically survive I don't think so. My A. chalcodes flips when I turn my overhead light on for too long.
 

viper69

ArachnoGod
Old Timer
Joined
Dec 8, 2006
Messages
18,854
Yes, but don’t they use lighting cues in the wild to help navigate their daily requirements to live; i.e. food and water availability, sheltering depth, the approach of mating season, and since we provide everything for them in captivity, their need to rely on the big old sun (or just plain old photons in general) thus becomes a non-issue.
What made me type my response was something scientific I found a few years ago. A research group using scorpion DNA found a particular species had DNA that coded for a protein that is involved clock/circadian rhythm in other animals (including us). These clock genes are HIGHLY conserved across species. SO, I suggest if scorps have them (well one species does) than it's likely Ts do as well, and thus light is necessary for them.
 

EtienneN

Arachno-enigma
Joined
Jul 15, 2017
Messages
1,038
What made me type my response was something scientific I found a few years ago. A research group using scorpion DNA found a particular species had DNA that coded for a protein that is involved clock/circadian rhythm in other animals (including us). These clock genes are HIGHLY conserved across species. SO, I suggest if scorps have them (well one species does) than it's likely Ts do as well, and thus light is necessary for them.
Wow, that’s pretty fascinating! I guess 99.9% of life on Earth really does depend on the sun.
 

G. pulchra

ArachnoGod
Old Timer
Joined
Jun 7, 2005
Messages
592
My T room get's filtered ambient light (very small amount as it's in the basement) and I've seen no issues with my T's. The very first T I purchased from this forum in 2005 is still vibrant and healthy.
 

Dennis Nedry

Arachnodemon
Joined
Oct 21, 2017
Messages
672
I'm not convinced of this. I think they respond and require lighting cues in the wild.
There’s no doubt they respond to light cues in the wild, there’s a reason you don’t see them hanging out of the burrow entrance in broad daylight unless they’re in the already dim rainforest floor. They probably don’t really need light in captivity though seeing as they don’t need to know when they need to hide away to avoid birds and other diurnal predators
 

viper69

ArachnoGod
Old Timer
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Dec 8, 2006
Messages
18,854
There’s no doubt they respond to light cues in the wild, there’s a reason you don’t see them hanging out of the burrow entrance in broad daylight unless they’re in the already dim rainforest floor. They probably don’t really need light in captivity though seeing as they don’t need to know when they need to hide away to avoid birds and other diurnal predators

Yes I know this thanks.
 

boina

Lady of the mites
Active Member
Joined
Mar 25, 2015
Messages
2,214
Well ya did say you weren’t convinced about them not having any lighting requirements
I'm actually completely with @viper69 on this one. A circadian rhythm has nothing whatsoever to do with hiding from predators. In mammals we know that the circadian rhym is structured by a light cycle and without it their health will decline, no matter if they are nocturnal or diurnal. Ask all the factory farmers that provide artificial daily cycles for their stock. We don't know really what effects that cycle has on invertebrates. We know they can survive without light and they don't necessarily depend on it - after all, they are very hardy - but there may still be effects that are to small to see in our limited captive populations, the first thing coming to mind is always the immune system, but also neurological weaknesses. Mind you, I'm just speculating here, but since we don't really know I wouldn't discard the notion that even inverts thrive better (even if only a few percent) with a daily cycle.
 

Vanisher

Arachnoking
Old Timer
Joined
Oct 2, 2004
Messages
2,529
I think they need some light to set apart daytime cycle from nighttime cycle! When i say same light i mean lika a ceeling ligh in the spiderroom or somehing like that. But we are talking very little light here
 

cold blood

Moderator
Staff member
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Jan 19, 2014
Messages
13,486
.I will just leave this as food for thought....all over the world there are deep caves that never see light....yet we still see them teeming with life.....invert life to be specific....and arachnids specifically are pretty much always present in numbers.
 

Vanisher

Arachnoking
Old Timer
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Oct 2, 2004
Messages
2,529
Yep! You are right! If i remember correctly there is some speicies of Aphonopelma, or was it Brachypelma??? In a mexican cave that hasnt developed any eyes! But little light for non cave dwelling tarantulas i think is good? But not nessecary i suppose!:happy:
 

Andrew Clayton

Arachnoangel
Active Member
Joined
Dec 19, 2018
Messages
818
Well I'm not long in the hobby but my Ts only have any light when I myself is in my T room as it is a room built in my loft/attic with no windows So they have no day/night cycle but seem to be perfectly happy with it, so I don't think they require any light In captivity
 

viper69

ArachnoGod
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Dec 8, 2006
Messages
18,854
.I will just leave this as food for thought....all over the world there are deep caves that never see light....yet we still see them teeming with life.....invert life to be specific....and arachnids specifically are pretty much always present in numbers.
True, but many of those animals have no eyes, or reduced eyes with less sensitivity to light if at all, more so than Ts I suspect.

Those ecosystems are quite different than what our average T experiences.
 

cold blood

Moderator
Staff member
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Jan 19, 2014
Messages
13,486
True, but many of those animals have no eyes, or reduced eyes with less sensitivity to light if at all, more so than Ts I suspect.

Those ecosystems are quite different than what our average T experiences.
And how well do a ts eyes work....from our perspective, id say barely. Their eyes suck...lol
 
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