The longest running Amphibian Community on the Internet.

Tags Register FAQ Calendar Search Today's Posts Mark Forums Read Caudata.org Store Donate


Are sex ratios in A. andersoni 50/50?

This is a discussion on Are sex ratios in A. andersoni 50/50? within the Tiger Salamander & Axolotl (Ambystoma tigrinum, A. mavortium spp, etc.) forums, part of the Species, Genus & Family Discussions category; I have a group of 5 A. andersoni, and they turned out to be 1:4. In talking to two other ...

Tiger Salamander & Axolotl (Ambystoma tigrinum, A. mavortium spp, etc.) The Tiger Salamanders and the Axolotl are so popular amongst hobbyists that they have been given their own topic. If you're particularly interested in the Axolotl, there is a large section of the forum devoted mainly to beginner Axolotl enthusiasts (not this topic).

Like Tree1Likes
  • 1 Post By Jennewt

Reply

 

LinkBack Thread Tools Display Modes
Old 8th November 2010   #1 (permalink)
Administrator
 
Jennewt's Avatar
 
Join Date: May 2005
Nationality:
Location: [ Members Only ]
Age: 51
Posts: 12,310
Gallery Images: 97
Comments: 46
Rep: Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11
Default Are sex ratios in A. andersoni 50/50?

I have a group of 5 A. andersoni, and they turned out to be 1:4. In talking to two other keepers, they seem to have a surplus of females too. Is this just coincidence, or are there more females than males out there?
__________________
Useful Links: Caresheets | Newt & Salamander FAQs | Axolotl FAQs |My website | Forum Rules.
Jennewt is offline   Reply With Quote
Old 8th November 2010   #2 (permalink)
2010 Research Grant Donor
 
michael's Avatar
 
Join Date: Apr 2003
Nationality:
Location: [ Members Only ]
Posts: 2,589
Gallery Images: 0
Comments: 0
Rep: michael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.orgmichael is considered an Authority at Caudata.org
Default Re: Are sex ratios in A. andersoni 50/50?

Initially it would seem that more females are produced than males. I think it's a little premature to draw any conclusions.
michael is offline   Reply With Quote
Old 11th November 2010   #3 (permalink)
Administrator
 
Jennewt's Avatar
 
Join Date: May 2005
Nationality:
Location: [ Members Only ]
Age: 51
Posts: 12,310
Gallery Images: 97
Comments: 46
Rep: Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11
Default Re: Are sex ratios in A. andersoni 50/50?

I would ask anyone who has andersoni to please post your sex ratio. If a dozen or so people respond, we will at least have some anecdotal evidence.
__________________
Useful Links: Caresheets | Newt & Salamander FAQs | Axolotl FAQs |My website | Forum Rules.
Jennewt is offline   Reply With Quote
Old 21st November 2010   #4 (permalink)
Member
 
ed_moyer's Avatar
 
Join Date: May 2007
Nationality:
Location: [ Members Only ]
Age: 54
Posts: 64
Gallery Images: 0
Comments: 0
Rep: ed_moyer has shown reliable knowledgeed_moyer has shown reliable knowledge
Default Re: Are sex ratios in A. andersoni 50/50?

Yes, There are two pet shops here that is selling young adults, for 30 dollars each an they are all females!!! An the store owener got them for 15 !!!! It's the same as the boscaii, I've had 5 females for the last 4 years they layed every year an still have yet to get a male!!! I guess you have to be in a click!!!
ed_moyer is offline   Reply With Quote
Old 21st November 2010   #5 (permalink)
Administrator
 
Jennewt's Avatar
 
Join Date: May 2005
Nationality:
Location: [ Members Only ]
Age: 51
Posts: 12,310
Gallery Images: 97
Comments: 46
Rep: Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11
Default Re: Are sex ratios in A. andersoni 50/50?

I'm really surprised to have so few replies to this post. I'm sure there are people who obtained A. andersoni juveniles (unsexed) and now know their sexes.
__________________
Useful Links: Caresheets | Newt & Salamander FAQs | Axolotl FAQs |My website | Forum Rules.
Jennewt is offline   Reply With Quote
Old 18th January 2011   #6 (permalink)
Member
 
beefsteak's Avatar
 
Join Date: May 2007
Nationality:
Location: [ Members Only ]
Posts: 89
Gallery Images: 1
Comments: 0
Rep: beefsteak has started on the right path
Default Re: Are sex ratios in A. andersoni 50/50?

The ones I just raised turned out about 50/50, of around 40 - 50 animals.
beefsteak is offline   Reply With Quote
Old 9th February 2011   #7 (permalink)
Member
 
musilvr4eva's Avatar
 
Join Date: Oct 2010
Nationality:
Location: [ Members Only ]
Age: 30
Posts: 56
Gallery Images: 0
Comments: 0
Rep: musilvr4eva is an unknown quantity at this point
Default Re: Are sex ratios in A. andersoni 50/50?

Of my five it appears I have one male and four females. Three of them are younger so it is hard to tell, but I would say they're ladies!
Emily
musilvr4eva is offline   Reply With Quote
Old 5th August 2011   #8 (permalink)
Administrator
 
Jennewt's Avatar
 
Join Date: May 2005
Nationality:
Location: [ Members Only ]
Age: 51
Posts: 12,310
Gallery Images: 97
Comments: 46
Rep: Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11Jennewt goes to 11
Default Re: Are sex ratios in A. andersoni 50/50?

Here's another report of a mostly-female group:
http://www.caudata.org/forum/f46-beg...l-females.html

John S's experience is reassuring. I admit that the reports are anecdotal, but I have yet to hear from anyone who has gotten a mostly-male group of andersoni.
__________________
Useful Links: Caresheets | Newt & Salamander FAQs | Axolotl FAQs |My website | Forum Rules.
Jennewt is offline   Reply With Quote
Old 5th August 2011   #9 (permalink)
Prolific Member
 
xxianxx's Avatar
 
Join Date: May 2011
Nationality:
Location: [ Members Only ]
Posts: 1,980
Gallery Images: 4
Comments: 6
Rep: xxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.orgxxianxx is considered an Authority at Caudata.org
Default Re: Are sex ratios in A. andersoni 50/50?

Could sex ratios be affected by temp,ph etc? having one person with a 50:50 ratio of males and females is not indicative of a general trend. Please note that this post was started with a question, i dont know the answer.
xxianxx is online now   Reply With Quote
Old 5th August 2011   #10 (permalink)
Prolific Member
 
Molch's Avatar
 
Join Date: Sep 2010
Nationality:
Age: 47
Posts: 1,367
Gallery Images: 5
Comments: 7
Rep: Molch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.orgMolch is considered an Authority at Caudata.org
Default Re: Are sex ratios in A. andersoni 50/50?

could it be a temperature -or environmental influence during development that warps sex ratios, like in crocodiles? Maybe in captivity they are raised at generally higher temps than in the wild?
__________________
Stick 'em with the pointy end
Molch is offline   Reply With Quote
Old 11th October 2011   #11 (permalink)
Junior Member
 
Join Date: Jul 2011
Nationality:
Location: [ Members Only ]
Posts: 7
Gallery Images: 2
Comments: 2
Rep: taricha29 is an unknown quantity at this point
Default Re: Are sex ratios in A. andersoni 50/50?

Hi, thought I would add my 2 cents as I've been interested in finding more andersoni. I purchased one in 2009 and it is female.
taricha29 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads

Thread Thread Starter Forum Replies Last Post
New A. andersoni JWERNER Photo & Video Gallery 15 4th October 2010 20:40
Sex ratios for keeping red-spotted newts lenora North American Newts (Notophthalmus & Taricha) 1 12th May 2005 01:34
Male:female C.O. ratios gabby Fire-Belly & Sword-Tail Newts (Cynops & Hypselotriton) 4 27th April 2005 03:39
E.andersoni TJ Crocodile Newts (Tylototriton & Echinotriton)... 4 20th December 2003 22:08
E. andersoni egg TJ Crocodile Newts (Tylototriton & Echinotriton)... 22 3rd July 2003 13:50


All times are GMT. The time now is 17:47.