The Lucky 13 - how i did it

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
Anyone who has followed my media page knows about my obsession with the shiny little Arbanitis trapdoors. It's an interesting story, and after almost a year I feel it might be interesting to read.

I'm a builder's apprentice by trade, so I travel around to a lot of different environments fairly regularly. About mid February this year on one of the sites I went to I noticed a rather perculiar cluster of perfectly round silken burrows about 5cm about from each other.

Over about a week of lunch breaks spent under the hot sun I finally lured one of the the culprits out of their burrows and I was quite surprised to see a rather beautiful, golden spider.

This photo is of the mystery species of Arbanitis trapdoor spider. I ended up capturing this very specimen as the first of the 13. She has been doing great since then.
For the next 3 months of March, April and May I executed the first of 3 operations;

1. OPERATION: STEALTHY SNATCH

This involved carefully approaching the burrows with soft footsteps and tirelessly trying to lure them out during lunch breaks with a grass stalk. Once the head was completely out I used a builder punch to push through the soil and safely block the spider off and collect it without skewering it. I managed to do this successfully for 8 specimens out of the roughly 200 burrows.

After this I set out to try researching them. Being on a Jobsite meant that inevitably sooner or later they would be killed by one trade or another, most noteably concreters and landscapers. I found out that several Arbanitis sp. are listed as threatened but that noteably they stick to high disturbance industrial zones. So I set off to try and discover a male in order to breed them to help repopulate the area as all mine, and every single burrow, appeared to be female.
No matter where I looked, how many rocks, logs and dirt clods I overturned, I could not find a male. To add to my despair concretes dumped a massive pile of dirt bang snack on top of the colony after making a footpath, and the burrows seemed be exclusively located to this single site and the adjacent vacant block.

This problem fixed itself when 2 of my smaller specimens molted and turned into mature males.

Immediately, I moved onto the next step of my research, breeding, with flying success.


With a bit of idle activity while waiting for the wild ones to eventually burrow free, I ended up working on the vacant block next door, and had a new idea to lure them out as there were still plenty of wild survivors after the slab was poured.

2.OPERATION: POWER OF LOVE

Considering the females don't eat the males after breeding, I thought it would be a good idea to use one of my males to lure out the wild females. Unfortunately this quickly turned into OPERATION: POWER OF HUNGER when he was absolutely devoured on the first hole, much to my absolute dismay. Finally, stage 3...

3. OPERATION: ENDURING VICTORY
(Sorry, I'm a massive horizon zero dawn fan)
Finally, I decided that the fastest route was the direct route. I took up trowel and digging stick, and dug an extra 6 out of the ground, unfortunately between excavations a bobcat compacted about 5" of soil over the remaining 40 holes, and I physically cannot rescue that many. I did learn a few things though in the process.

*The rejectamenta chamber of all 6 holes were almost empty aside from the one that ate my male (rip buddy, you did a good job, even if your 600+ children will never know you).
*This explains why my male was eaten even in mid breeding season. All their abdomens were quite shriveled too.
*It shows their persistence on highly disturbed sites comes at the cost of their prey fleeing, and inevitable starvation.

But it's not all sad news, in this time I have already successfully raised 1 egg sack and given the slings to a breeding group to help get em back on track, i kept 1 sling though.

So in the end, here's to the lucky 13 that get to survive, and cheers to Cobalt, the male who sacrificed his life for science :(

Here's a few species notes I've taken:

1. Extremely hardy species, eats as little as 4 times per year, but insufficient for eggsack production.
2. Shiny, Iridescent bronze-gold colouring, especially the larger specimens.
3. Adapts to new setups within almost an hour and will take food nearly instantly even after just been captured.
4. Mildly venomous, minor symptoms may occur.
5. Absymal at climbing smooth surfaces.
6. Male may mate with up to 20 females before dying in the wild.
7. Burrow in extremely hardy, clumpy soil

Final step is to get my 6 gravid females to lay and release the slings back into the wild in a safe place.

Anyway, thought it might be interesting for some of you, it certainly has been for me!
 

WildSpider

Arachnobaron
Joined
Jul 14, 2018
Messages
465
Anyone who has followed my media page knows about my obsession with the shiny little Arbanitis trapdoors. It's an interesting story, and after almost a year I feel it might be interesting to read.

I'm a builder's apprentice by trade, so I travel around to a lot of different environments fairly regularly. About mid February this year on one of the sites I went to I noticed a rather perculiar cluster of perfectly round silken burrows about 5cm about from each other.

Over about a week of lunch breaks spent under the hot sun I finally lured one of the the culprits out of their burrows and I was quite surprised to see a rather beautiful, golden spider.

This photo is of the mystery species of Arbanitis trapdoor spider. I ended up capturing this very specimen as the first of the 13. She has been doing great since then.
For the next 3 months of March, April and May I executed the first of 3 operations;

1. OPERATION: STEALTHY SNATCH

This involved carefully approaching the burrows with soft footsteps and tirelessly trying to lure them out during lunch breaks with a grass stalk. Once the head was completely out I used a builder punch to push through the soil and safely block the spider off and collect it without skewering it. I managed to do this successfully for 8 specimens out of the roughly 200 burrows.

After this I set out to try researching them. Being on a Jobsite meant that inevitably sooner or later they would be killed by one trade or another, most noteably concreters and landscapers. I found out that several Arbanitis sp. are listed as threatened but that noteably they stick to high disturbance industrial zones. So I set off to try and discover a male in order to breed them to help repopulate the area as all mine, and every single burrow, appeared to be female.
No matter where I looked, how many rocks, logs and dirt clods I overturned, I could not find a male. To add to my despair concretes dumped a massive pile of dirt bang snack on top of the colony after making a footpath, and the burrows seemed be exclusively located to this single site and the adjacent vacant block.

This problem fixed itself when 2 of my smaller specimens molted and turned into mature males.

Immediately, I moved onto the next step of my research, breeding, with flying success.


With a bit of idle activity while waiting for the wild ones to eventually burrow free, I ended up working on the vacant block next door, and had a new idea to lure them out as there were still plenty of wild survivors after the slab was poured.

2.OPERATION: POWER OF LOVE

Considering the females don't eat the males after breeding, I thought it would be a good idea to use one of my males to lure out the wild females. Unfortunately this quickly turned into OPERATION: POWER OF HUNGER when he was absolutely devoured on the first hole, much to my absolute dismay. Finally, stage 3...

3. OPERATION: ENDURING VICTORY
(Sorry, I'm a massive horizon zero dawn fan)
Finally, I decided that the fastest route was the direct route. I took up trowel and digging stick, and dug an extra 6 out of the ground, unfortunately between excavations a bobcat compacted about 5" of soil over the remaining 40 holes, and I physically cannot rescue that many. I did learn a few things though in the process.

*The rejectamenta chamber of all 6 holes were almost empty aside from the one that ate my male (rip buddy, you did a good job, even if your 600+ children will never know you).
*This explains why my male was eaten even in mid breeding season. All their abdomens were quite shriveled too.
*It shows their persistence on highly disturbed sites comes at the cost of their prey fleeing, and inevitable starvation.

But it's not all sad news, in this time I have already successfully raised 1 egg sack and given the slings to a breeding group to help get em back on track, i kept 1 sling though.

So in the end, here's to the lucky 13 that get to survive, and cheers to Cobalt, the male who sacrificed his life for science :(

Here's a few species notes I've taken:

1. Extremely hardy species, eats as little as 4 times per year, but insufficient for eggsack production.
2. Shiny, Iridescent bronze-gold colouring, especially the larger specimens.
3. Adapts to new setups within almost an hour and will take food nearly instantly even after just been captured.
4. Mildly venomous, minor symptoms may occur.
5. Absymal at climbing smooth surfaces.
6. Male may mate with up to 20 females before dying in the wild.
7. Burrow in extremely hardy, clumpy soil

Final step is to get my 6 gravid females to lay and release the slings back into the wild in a safe place.

Anyway, thought it might be interesting for some of you, it certainly has been for me!
Thanks, RezonantVoid for posting this. Found it very interesting and informative. It was especially enjoyable since it was about trapdoors ;).
 
Joined
Jun 22, 2016
Messages
393
Anyone who has followed my media page knows about my obsession with the shiny little Arbanitis trapdoors. It's an interesting story, and after almost a year I feel it might be interesting to read.

I'm a builder's apprentice by trade, so I travel around to a lot of different environments fairly regularly. About mid February this year on one of the sites I went to I noticed a rather perculiar cluster of perfectly round silken burrows about 5cm about from each other.

Over about a week of lunch breaks spent under the hot sun I finally lured one of the the culprits out of their burrows and I was quite surprised to see a rather beautiful, golden spider.

This photo is of the mystery species of Arbanitis trapdoor spider. I ended up capturing this very specimen as the first of the 13. She has been doing great since then.
For the next 3 months of March, April and May I executed the first of 3 operations;

1. OPERATION: STEALTHY SNATCH

This involved carefully approaching the burrows with soft footsteps and tirelessly trying to lure them out during lunch breaks with a grass stalk. Once the head was completely out I used a builder punch to push through the soil and safely block the spider off and collect it without skewering it. I managed to do this successfully for 8 specimens out of the roughly 200 burrows.

After this I set out to try researching them. Being on a Jobsite meant that inevitably sooner or later they would be killed by one trade or another, most noteably concreters and landscapers. I found out that several Arbanitis sp. are listed as threatened but that noteably they stick to high disturbance industrial zones. So I set off to try and discover a male in order to breed them to help repopulate the area as all mine, and every single burrow, appeared to be female.
No matter where I looked, how many rocks, logs and dirt clods I overturned, I could not find a male. To add to my despair concretes dumped a massive pile of dirt bang snack on top of the colony after making a footpath, and the burrows seemed be exclusively located to this single site and the adjacent vacant block.

This problem fixed itself when 2 of my smaller specimens molted and turned into mature males.

Immediately, I moved onto the next step of my research, breeding, with flying success.


With a bit of idle activity while waiting for the wild ones to eventually burrow free, I ended up working on the vacant block next door, and had a new idea to lure them out as there were still plenty of wild survivors after the slab was poured.

2.OPERATION: POWER OF LOVE

Considering the females don't eat the males after breeding, I thought it would be a good idea to use one of my males to lure out the wild females. Unfortunately this quickly turned into OPERATION: POWER OF HUNGER when he was absolutely devoured on the first hole, much to my absolute dismay. Finally, stage 3...

3. OPERATION: ENDURING VICTORY
(Sorry, I'm a massive horizon zero dawn fan)
Finally, I decided that the fastest route was the direct route. I took up trowel and digging stick, and dug an extra 6 out of the ground, unfortunately between excavations a bobcat compacted about 5" of soil over the remaining 40 holes, and I physically cannot rescue that many. I did learn a few things though in the process.

*The rejectamenta chamber of all 6 holes were almost empty aside from the one that ate my male (rip buddy, you did a good job, even if your 600+ children will never know you).
*This explains why my male was eaten even in mid breeding season. All their abdomens were quite shriveled too.
*It shows their persistence on highly disturbed sites comes at the cost of their prey fleeing, and inevitable starvation.

But it's not all sad news, in this time I have already successfully raised 1 egg sack and given the slings to a breeding group to help get em back on track, i kept 1 sling though.

So in the end, here's to the lucky 13 that get to survive, and cheers to Cobalt, the male who sacrificed his life for science :(

Here's a few species notes I've taken:

1. Extremely hardy species, eats as little as 4 times per year, but insufficient for eggsack production.
2. Shiny, Iridescent bronze-gold colouring, especially the larger specimens.
3. Adapts to new setups within almost an hour and will take food nearly instantly even after just been captured.
4. Mildly venomous, minor symptoms may occur.
5. Absymal at climbing smooth surfaces.
6. Male may mate with up to 20 females before dying in the wild.
7. Burrow in extremely hardy, clumpy soil

Final step is to get my 6 gravid females to lay and release the slings back into the wild in a safe place.

Anyway, thought it might be interesting for some of you, it certainly has been for me!



Words cannot explain the gratitude I feel for you, as well as your losses. That's the heartbreaking part of keeping spiders. You outlive almost all your spider-children.
 

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
Words cannot explain the gratitude I feel for you, as well as your losses. That's the heartbreaking part of keeping spiders. You outlive almost all your spider-children.
Thanks so much, I'm not really in it for recognition but it's always awesome to see people appreciate the effort, this project has easily taken 50 hours of experimenting. But yea, it's gonna be sad to see this lot go but since we just had a trapdoor die at the record-breaking age of 43 in Western Australia, and not even from old age, hopefully they'll be with me a little while
 
Joined
Jun 22, 2016
Messages
393
Thanks so much, I'm not really in it for recognition but it's always awesome to see people appreciate the effort, this project has easily taken 50 hours of experimenting. But yea, it's gonna be sad to see this lot go but since we just had a trapdoor die at the record-breaking age of 43 in Western Australia, and not even from old age, hopefully they'll be with me a little while
I show the same dedication with my widows. I spend often more than 8 hours every day in my lab, just admiring their beauty and calm demeanor after feeding them. Watching them make their webs is my favorite. I have to stay up to 3 am or beyond to watch it, but it's very therapeutic before I lay down to rest. When I have my days off, I spend the entirety of my day in my study, as I have no other distractors besides the occasional bits of cereal and junk food I eat.
 

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
I show the same dedication with my widows. I spend often more than 8 hours every day in my lab, just admiring their beauty and calm demeanor after feeding them. Watching them make their webs is my favorite. I have to stay up to 3 am or beyond to watch it, but it's very therapeutic before I lay down to rest. When I have my days off, I spend the entirety of my day in my study, as I have no other distractors besides the occasional bits of cereal and junk food I eat.
I remember when I had my first latrodectus I was watching it all the time while it webbed and seeing it lay an eggsack was pretty cool. Can relate to the therapeutic feeling lol
 
Joined
Jun 22, 2016
Messages
393
I remember when I had my first latrodectus I was watching it all the time while it webbed and seeing it lay an eggsack was pretty cool. Can relate to the therapeutic feeling lol
Then I'm not alone. Well, I never was alone, since I always have a spider or two hitchhiking a ride in my pack during my public outings... ;)
 

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
A few extra species notes:

8. Females will pair with multiple males in a short period of time, presumably they store multiple unfertilized eggs. Shows no interest in a male that has already paired with her, but still shows no aggression.

9. Slings seem capable of learning new tactics for tricky prey such as jumping crickets, and very quick to memorise feeding times and such learned strategies.

10. Despite their colonial lifestyle in the wild, refuse to be kept together without fighting, this may just be feeding responses though
 
Last edited:

Pernicious

Arachnosquire
Joined
Jul 22, 2018
Messages
62
Simply put.. your awsome! Im so intrigued by these spiders ! Beutifull and rugged at the same time. Awsome work !!!!
 

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
Some exciting news, got my first eggsack from one of the females!

This is a view through the lid as it has been webbed down and I didn't want to interrupt as the eggs have only just started to be layed. This female was paired on July 19, 3:40pm. I have another gravid female that has just burrowed so I'm assuming she is laying too.
Almost time to release some of them back into the wild!
 

Arthroverts

Arachnoking
Joined
Jul 11, 2016
Messages
2,463
Awesome! Very happy for you! I am so glad that the invertebrate hobby has started to seek out ways to repopulate threatened species, it seems that ye' Australians are pioneering it in the Land Down Under!

Thanks for sharing, I wish I was able to get a few of these trapdoors so I could apply your notes!

Thanks again,

Arthroverts
 

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
Awesome! Very happy for you! I am so glad that the invertebrate hobby has started to seek out ways to repopulate threatened species, it seems that ye' Australians are pioneering it in the Land Down Under!

Thanks for sharing, I wish I was able to get a few of these trapdoors so I could apply your notes!

Thanks again,

Arthroverts
I'm glad to hear my efforts are appreciated!
A bit of a sad update though she never finished the sack, just layed a slushy puddle of eggs and such and then left it. Hitchhiker mites are cleaning it up now :(

Still hoping for success with the other females
 

phoxteeth

Arachnopeon
Joined
Dec 1, 2018
Messages
2
Oh wow!! This is awesome, trying to repopulate the pretty lil' critters!!
Fingers crossed that the other females have better luck with their eggs! Thank you for documenting this!
 

RezonantVoid

Hollow Knight
Joined
Jan 7, 2018
Messages
1,354
This is more like it!!

I didn't think the pairing with this female was even successful, but I'm very glad it did!
 
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