Little house cleaning.

[c'est ma]

Man the regalis really got busy last night! I had my computer on time lapsing overnight, but for some unknown reason my computer decided it wanted to shut down Here is what is going on as of 11 am this morning. . . .

Any chance you got one of those wonderful, middle-of-the-night "Automatic Updates (must reboot)" surprises? I've lost stuff before to them.

But nevertheless, this is such an awesome series of vids!!!!!!

Well of course I know their size. I raised and bred them.
They both are just about 6.5".
The barometric pressure is at 29.98 so that is good news! Perfect egg sac weather. I hope the striata catches up and drops today too!

Are you being serious? If so, can you point me to any info that relates bp with certain spp of T's & reproduction? I have no idea about your spp native habitats but I did used to live near Beaverton, and can't imagine anything there in November resembling any natural T habitat! Maybe precipitation...

As you can tell I know next to nothing about T reproduction...but I do know that dart frog keepers firmly believe their animals respond to bp and other climatic cues...

And its done! This is an awesome wrap up video in my opinion.

:worship: :worship: :worship:

Wow, that is just incredible! This whole series seems like something that some university researcher would love to have. I really love the part around 1:40 or so (too busy looking at the spiders to notice the time) when she starts tearing down the top "mooring" webbing and begins to compress & move the sac...

Now for a really stupid, stupid question --do T's build a sac first and then "insert" their eggs? Or somehow lay the eggs & then envelop them? Or do both simultaneously? It never occurred to me to wonder before...

What a wonderful sequence! Thanks so much for posting these!

--Diane

 

[c'est ma]

What on earth are you talking about?

I think he noticed that the two spider hollows are vaguely lung-shaped--esp when side-by-side like that.

__Diane

 

[maxi_kdu]

What on earth are you talking about?

I mean how the shape of their nest looked in the vids.lol

 

[maxi_kdu]

I think he noticed that the two spider hollows are vaguely lung-shaped--esp when side-by-side like that.

__Diane

Yea, that's what i meant...sorry for my poor expression:wall:

 

[DrAce]

...
Are you being serious? If so, can you point me to any info that relates bp with certain spp of T's & reproduction? I have no idea about your spp native habitats but I did used to live near Beaverton, and can't imagine anything there in November resembling any natural T habitat! Maybe precipitation...

As you can tell I know next to nothing about T reproduction...but I do know that dart frog keepers firmly believe their animals respond to bp and other climatic cues...



:worship: :worship: :worship:

Wow, that is just incredible! This whole series seems like something that some university researcher would love to have. I really love the part around 1:40 or so (too busy looking at the spiders to notice the time) when she starts tearing down the top "mooring" webbing and begins to compress & move the sac...

Now for a really stupid, stupid question --do T's build a sac first and then "insert" their eggs? Or somehow lay the eggs & then envelop them? Or do both simultaneously? It never occurred to me to wonder before...

What a wonderful sequence! Thanks so much for posting these!

--Diane

There is evidence that some events are timed by barometric pressure. Moults, for one. I don't remember that laying eggs was linked, but IF barometric pressure is a determinant, then there's no reason why egg laying won't be either.

Tarantulas lay the mat, then lay eggs into it, then wrap them up.

I still wanna know if they internally or externally fertilize the eggs...

 

[Talkenlate04]

I still wanna know if they internally or externally fertilize the eggs...

Several times now I have seen the start of the egg laying process and there is clear fluid that comes out first well before any of the eggs, and I swear I have seen the sperm packed fall out with that fluid yet a few minutes later I can no longer spot the packet in the fluid. It's almost like it dissolved inside the fluid that came out ahead of the eggs but I am not sure yet.

There is evidence that some events are timed by barometric pressure. Moults, for one. I don't remember that laying eggs was linked, but IF barometric pressure is a determinant, then there's no reason why egg laying won't be either.

I have been keeping track of the pressure when my Ts have started egg sacs, and every one of the 28 this year have been laid when the pressure was 29.00-30.00. Now that could be a giant coincidence of no value at all, but I think the pressure plays some sort of roll.

 

[DrAce]

Several times now I have seen the start of the egg laying process and there is clear fluid that comes out first well before any of the eggs, and I swear I have seen the sperm packed fall out with that fluid yet a few minutes later I can no longer spot the packet in the fluid. It's almost like it dissolved inside the fluid that came out ahead of the eggs but I am not sure yet.
...

Which is kinda what I recall saying a long time ago when we first talked about this (I think it was when you found that waxy sperm packet, I think). I suspect the only way to really tell would be unethically to disturb her during egg laying... or to collect a couple of those eggs BEFORE they hit the puddle in the webbing.

...
I have been keeping track of the pressure when my Ts have started egg sacs, and every one of the 28 this year have been laid when the pressure was 29.00-30.00. Now that could be a giant coincidence of no value at all, but I think the pressure plays some sort of roll.

Do you keep a daily recording of pressure and mark off when the egg laying happens?
By that, I mean do you have a nice line graph of the daily pressure, with a mark on for the dates when eggs were layed...
If so, I'd murder a chance to look at the data.

 

[Talkenlate04]

Sadly I don't have anything that awesome. I just noted the pressure at the start of the process and the middle and the end. It always was between those two ranges. I can start documenting it in a more formal way. I guess I should think about that when I make these casual observations.

 

[DrAce]

Sadly I don't have anything that awesome. I just noted the pressure at the start of the process and the middle and the end. It always was between those two ranges. I can start documenting it in a more formal way. I guess I should think about that when I make these casual observations.

Actually, I wouldn't mind having a look at it anyway, if you are keen. There may well be something significant in the data which warrants further analysis...

 

[c'est ma]

There is evidence that some events are timed by barometric pressure. Moults, for one. I don't remember that laying eggs was linked, but IF barometric pressure is a determinant, then there's no reason why egg laying won't be either.

Tarantulas lay the mat, then lay eggs into it, then wrap them up.

I still wanna know if they internally or externally fertilize the eggs...

Thanks for this reply--and all the subsequent observations as well. As an erstwhile biologist, these are the sorts of things that really fascinate me.

Regarding barometric pressure, would this be highly variable w/in a given region, or do either you or DrAce think that we might be able to compare our spider behavior records with weather data collected, say, by the local official weather station?

--Diane

 

[DrAce]

Thanks for this reply--and all the subsequent observations as well. As an erstwhile biologist, these are the sorts of things that really fascinate me.

Regarding barometric pressure, would this be highly variable w/in a given region, or do either you or DrAce think that we might be able to compare our spider behavior records with weather data collected, say, by the local official weather station?

--Diane

Maybe - it seems that Talkenlate has a barometer in the tarantula room - which will enable these sorts of measurements directly.

 

[Talkenlate04]

Maybe - it seems that Talkenlate has a barometer in the tarantula room - which will enable these sorts of measurements directly.

Actually I have been going off the local weather station that is setup about 1.5 miles from my place. Inaccurate to a degree I know. But I am thinking about getting my own meter so I can take more accurate readings. How much would one of those cost?
The striata started her egg sac last night, and the reading was 29.55.

 

[Singbluemymind]

awesome vids dude

 

[Talkenlate04]

Well the striata made her sac starting early this morning, but it does not look put together all that well. It is sealed up and nothing is leaking, the eggs look nice and yellow, but I would be shocked if this sac was fertile.

[YOUTUBE]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/SRYdAMaqs6I&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/SRYdAMaqs6I&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/YOUTUBE]

 

[DrAce]

Her wrapping technique is quite different, isn't it!

 

[Protectyaaaneck]

the last video you posted ryan is awesome, that is such a cool site to have them side by side making their eggsacs. congrats again.

 

[ReMoVeR]

what is ur setup on these footage? Program, cameras, connections... could u gimme a tip ? I have my T "right on the side" of the computer and i would LOVE to have these type of records ;O

Those are the MOST amazing vids i've ever seen. I do L O V E those vids right there =)

Tkz in advance

//Tiago

 

[Talkenlate04]

Its just a webcam set to motion detection. When they move it will record till they stop moving. This way I capture only the movement for a long period of time. Then once I decide I am done recording I combine all of the videos in windows movie maker and apply the 2x speed several times so I shorten several hours of footage into a few minutes.

 

[ReMoVeR]

Its just a webcam set to motion detection. When they move it will record till they stop moving. This way I capture only the movement for a long period of time. Then once I decide I am done recording I combine all of the videos in windows movie maker and apply the 2x speed several times so I shorten several hours of footage into a few minutes.

So it works with the webcam program right?

Humn.... interesting... i have an old webcam that maybe needs to be "thrown" away.... humn... :?

 

[ReMoVeR]

oh and... sorry: u have it with a light there ? wont it bother ur T ?

/Tiago