Jumping Spider, jumping problem?

[Evelynnthespider]

Hi! It’s been maybe a month or so since I got my first P. Regius, Evelynn. She’s still quite small, but the first time we gave her a small cricket she caught it with no issues, same with the second time. Since then she’s molted and I noticed she can’t jump nearly as far as she used to and she’s had so many failed attempts at catching any crickets. Is this normal after a molt?

 

[SkittlesTheJumpingSpider]

Hi! It’s been maybe a month or so since I got my first P. Regius, Evelynn. She’s still quite small, but the first time we gave her a small cricket she caught it with no issues, same with the second time. Since then she’s molted and I noticed she can’t jump nearly as far as she used to and she’s had so many failed attempts at catching any crickets. Is this normal after a molt?

I've never had any of my jumping spiders molt with me, so I can't tell you if it's normal or not, but how long was it since she molted?

 

[AmazingNature]

HAVE YOU CHANGED THE LIGHTING?
is your spider jumping 'short'? of the prey?
I was concernd about what type of light to use in winter/meaning not diffused sunlight
what type of artificial etc
(as in fake/bulb light)
And if 'fake' light was bad for them/eyesight/headaches(joke) but who knows it affects humans
Anyway upon research a couple years ago
to sum it up-they need green light
and whatever I read said when deprived of green they 'jump short'
excerpt
' In order to jump accurately on flies or other prey and fine-tune their capture technique, their 3D vision has to be perfect. Unlike the binocular approach of humans (stereopsis) or the insect method which moves the head from side to side to achieve a parallax by means of motion, these spiders use an image defocusing system to judge the relative distances involved.
Osaka and other universities have been investigating the opsins(colour chemicals) of Arthropods and the colour vision of spiders for many years. This Japanese research showed that green light was necessary for accuracy since the spiders were able to judge their jumps successfully in green light. Presumably, they used the two layers closest to the retinal surface. In red light (which does not contain the shorter wavelength green light) many spiders could not jump accurately'
if you search green light and spider jumps you should find stuff
I hope this helps?

 

[AmazingNature]

Seeing green helps spiders perfect jump › News in Science (ABC Science)

 

[Evelynnthespider]

I've never had any of my jumping spiders molt with me, so I can't tell you if it's normal or not, but how long was it since she molted?

She molted around 4 days ago. I ended up giving her a cricket with some tweezers which she happily took. Wondering if since her molt was so recent that she just wasn’t confident enough to really go for it? Not sure.

 

[Evelynnthespider]

HAVE YOU CHANGED THE LIGHTING?
is your spider jumping 'short'? of the prey?
I was concernd about what type of light to use in winter/meaning not diffused sunlight
what type of artificial etc
(as in fake/bulb light)
And if 'fake' light was bad for them/eyesight/headaches(joke) but who knows it affects humans
Anyway upon research a couple years ago
to sum it up-they need green light
and whatever I read said when deprived of green they 'jump short'
excerpt
' In order to jump accurately on flies or other prey and fine-tune their capture technique, their 3D vision has to be perfect. Unlike the binocular approach of humans (stereopsis) or the insect method which moves the head from side to side to achieve a parallax by means of motion, these spiders use an image defocusing system to judge the relative distances involved.
Osaka and other universities have been investigating the opsins(colour chemicals) of Arthropods and the colour vision of spiders for many years. This Japanese research showed that green light was necessary for accuracy since the spiders were able to judge their jumps successfully in green light. Presumably, they used the two layers closest to the retinal surface. In red light (which does not contain the shorter wavelength green light) many spiders could not jump accurately'
if you search green light and spider jumps you should find stuff
I hope this helps?

The lighting has been the same since I got her. I’m using a 5W daylight LED light, but that’s really interesting about the green light! I’ll have to keep an eye on her and see if her jumping improves. I was thinking maybe since her molt was so recent that she locked confidence to jump further. But if it doesn’t improve, I may try that! Thanks!

 

[AmazingNature]

your welcome, Yeah I figure if it was light specific, we in the spider world would have heard reports long ago of spider's mis-jumping under strictly artificial lights, just thought I'd share because who knows?

 

[Evelynnthespider]

your welcome, Yeah I figure if it was light specific, we in the spider world would have heard reports long ago of spider's mis-jumping under strictly artificial lights, just thought I'd share because who knows?

Totally! I appreciate the advice!!