Reliability of toe pad size for sexing D. tinctorius?

Dendrobates auratus
Dendrobates azureus
Dendrobates leucomelas
Dendrobates tinctorius
Dendrobates truncatus
User avatar
joneill809
Site Admin
Posts: 1644
Joined: Fri Feb 24, 2012 10:18 pm
Location: Austin TX
Contact:

Reliability of toe pad size for sexing D. tinctorius?

Postby joneill809 » Thu May 30, 2013 11:13 pm

I will admit I'm still new at this, but I find the use of toe pad size alone to be unreliable when sexing tinctorius. It seems like a lot of froggers go to the pads first when sexing frogs, while I hesitate to draw any conclusions based on toe pads alone. Here's a set of examples:
azureus-female-P1000978.JPG
Looking at this image, these toe pads have been mistaken as "male" when in fact, this is the female from my proven pair.

Here is the male:
azureus-male-P1000986.JPG
I have a hard time distinguishing the pad shapes on this male from the pads on the female from the previous image.

Not a significant difference in toe pad shape in my opinion. But if you look at the other indicators the sexes are more obvious. The classic back arch of the female, her larger size, and gravid torso:
azureus-pair-P1000992sm.JPG


Of course, witnessing calling helps:
calling-ref-0717.jpg

calling-0716.jpg



So in your opinion, how reliable is toe pad size?
Jim from Austin please contact me if you are willing to trade offspring from:
lorenzo - schwinn line|NAIB true sips|fantastica nominant
http://www.oneillscrossing.com/dart-frogs/

BcsTx
Senior Member
Posts: 625
Joined: Mon Feb 16, 2009 8:58 am
Location: Plano, Texas

Reliability of toe pad size for sexing D. tinctorius?

Postby BcsTx » Fri May 31, 2013 7:10 am

I like you look at the arching backs, more indicative IMO of Tinc Sex.
Maybe Glenn will chime in.
-Beth

frogfreak
Senior Member
Posts: 760
Joined: Mon Aug 24, 2009 10:57 pm
Location: Brantford,Ontario

Re: Reliability of toe pad size for sexing D. tinctorius?

Postby frogfreak » Fri May 31, 2013 9:25 am

I don't think it's very reliable. You can be easily be fooled by toe pads. I have some females with huge toe pads and males with small toe pads. Body shape and size are a better indicator of what sex they are.

Eggs and calling helps too! :wink:
Glenn

User avatar
joneill809
Site Admin
Posts: 1644
Joined: Fri Feb 24, 2012 10:18 pm
Location: Austin TX
Contact:

Re: Reliability of toe pad size for sexing D. tinctorius?

Postby joneill809 » Fri May 31, 2013 11:45 am

Thanks Glenn! Yes I was cautioning on the use of toe pads as a primary means of identification and shared my pictures. An opinion based on toe pads came back - two males! :lol: 30 froglets and 50 tads that would suggest one was a female. It did illustrate my point that toe pad identifications are not reliable. But I'm still new so figured I'd ask :) Thanks for weighing in!

It would be great if others have pictures of their sexed pairs that they can add to build up a reference library of sorts.
Jim from Austin please contact me if you are willing to trade offspring from:
lorenzo - schwinn line|NAIB true sips|fantastica nominant
http://www.oneillscrossing.com/dart-frogs/

User avatar
Philsuma
Site Owner
Posts: 10494
Joined: Mon Oct 13, 2008 2:10 am
Location: Harrisburg, PA
Contact:

Re: Reliability of toe pad size for sexing D. tinctorius?

Postby Philsuma » Fri May 31, 2013 2:49 pm

I'd place body habitus ahead of toe pads, for a higher percentage of sex determination.

Both are really only effective when the frogs are more mature and at maximum size. Sexual maturity may come about at 4 -6 months, but some species are very small at that age, and it confounds things.

frogfreak
Senior Member
Posts: 760
Joined: Mon Aug 24, 2009 10:57 pm
Location: Brantford,Ontario

Re: Reliability of toe pad size for sexing D. tinctorius?

Postby frogfreak » Fri May 31, 2013 4:17 pm

Image

Guess which one is male?? :D

In this case toe pads ID works. I have seen my female Alanis carry though...

I'll try and get some pics up in the next while.
Glenn


Return to “Dendrobates Genus”

Who is online

Users browsing this forum: No registered users and 15 guests