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Do new workers have pheromones?


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10 replies to this topic

#1 Offline ponerinecat - Posted July 26 2019 - 10:37 AM

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So i artificially hatched a camponautus worker since the queen was ignoring her. After reintroduction, the queen attacked the worker. Anyone know why.



#2 Offline Acutus - Posted July 26 2019 - 10:46 AM

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Guessing but maybe it just didn't smell like the rest or Something is wrong with it that she can sense and that is why she ignored it in the first place?


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Billy

 

Currently keeping:

Camponotus chromaiodes

Camponotus castaneus

Formica subsericea


#3 Offline Manitobant - Posted July 26 2019 - 11:06 AM

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New workers, known as Callows, haven’t fully adopted the colony scent when they hatch. This makes them very useful for raising parasitic species.
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#4 Offline AntsDakota - Posted July 26 2019 - 2:31 PM

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The queen probably smelled human pheromones.... :D


"God made..... all the creatures that move along the ground according to their kinds. (including ants) And God saw that it was good. Genesis 1:25 NIV version


#5 Offline ponerinecat - Posted July 26 2019 - 8:13 PM

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thanks, she also killed a worker that I half hatched. (Still in cocoon, but the cocoon is open.)



#6 Offline Silq - Posted July 26 2019 - 9:49 PM

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So i artificially hatched a camponautus worker since the queen was ignoring her. After reintroduction, the queen attacked the worker. Anyone know why.

how do you artificially hatch a worker? Just curious i have two Camponotus with some larvae but just incase


Edited by Silq, July 26 2019 - 9:49 PM.

Ant Journal: http://www.formicult...-journal/<br> My colonies: C. Semitestaceus, P. Californicus, V. Pergandei, S. Xyloni.


#7 Offline drtrmiller - Posted July 27 2019 - 3:05 AM

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Not entirely sure what you mean by "artificially hatched," but the cuticular hydrocarbons responsible for colony scent identification may have been modified by your handling or time away from the nest.  If so, the colony may reject the ant based on its unfamiliar odor, in the same way that a small rodent mother may rejects babies that have been handled by people.




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#8 Offline AntsDakota - Posted July 27 2019 - 12:36 PM

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So i artificially hatched a camponautus worker since the queen was ignoring her. After reintroduction, the queen attacked the worker. Anyone know why.

how do you artificially hatch a worker? Just curious i have two Camponotus with some larvae but just incase

 

 

Not entirely sure what you mean by "artificially hatched," but the cuticular hydrocarbons responsible for colony scent identification may have been modified by your handling or time away from the nest.  If so, the colony may reject the ant based on its unfamiliar odor, in the same way that a small rodent mother may rejects babies that have been handled by people.

You very carefully snip the pupa open without harming the worker inside, and gently squeeze the other end of the pupa, and the worker should slide right out (or at least that's how I did it. :D )


"God made..... all the creatures that move along the ground according to their kinds. (including ants) And God saw that it was good. Genesis 1:25 NIV version


#9 Offline ponerinecat - Posted July 27 2019 - 5:21 PM

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I poked a hole with a needle  in between the hollow between the thorax and gaster, and then pulled the needle up to make a tab. Then I pulled the tab up.



#10 Offline Silq - Posted July 27 2019 - 11:14 PM

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So i artificially hatched a camponautus worker since the queen was ignoring her. After reintroduction, the queen attacked the worker. Anyone know why.

how do you artificially hatch a worker? Just curious i have two Camponotus with some larvae but just incase

Not entirely sure what you mean by "artificially hatched," but the cuticular hydrocarbons responsible for colony scent identification may have been modified by your handling or time away from the nest. If so, the colony may reject the ant based on its unfamiliar odor, in the same way that a small rodent mother may rejects babies that have been handled by people.

You very carefully snip the pupa open without harming the worker inside, and gently squeeze the other end of the pupa, and the worker should slide right out (or at least that's how I did it. :D )
Sounds like something I would fail pretty bad at... Directions unclear, snipped ant in half
I don't think I could ever attempt anything like this

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Ant Journal: http://www.formicult...-journal/<br> My colonies: C. Semitestaceus, P. Californicus, V. Pergandei, S. Xyloni.


#11 Offline ponerinecat - Posted July 29 2019 - 10:28 AM

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So, the same speicies of ant had a worker curl up into a pupae position and is now being treated like a pupae. what's going on? The worker never made a cocoon, does that have to do with it?






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